int main(int argc, char **argv)
{
OutputStream audio_st = { 0 };
const char *filename;
AVOutputFormat *fmt;
AVFormatContext *oc;
AVCodec *audio_codec;
int ret;
int have_audio = 0;
int encode_audio = 0;
AVDictionary *opt = NULL;
/* Initialize libavcodec, and register all codecs and formats. */
av_register_all();
avformat_network_init();
if (argc < 2) {
printf("usage: %s output_file\n", argv[0]);
return 1;
}
av_dict_set(&opt, "strict", "experimental", 0);
filename = argv[1];
if (argc > 3 && !strcmp(argv[2], "-flags")) {
av_dict_set(&opt, argv[2]+1, argv[3], 0);
}
/* allocate the output media context */
avformat_alloc_output_context2(&oc, NULL, "sdp", filename);
if (!oc) {
printf("Could not deduce output format from file extension: using MPEG.\n");
avformat_alloc_output_context2(&oc, NULL, "mpeg", filename);
}
if (!oc)
return 1;
fmt = oc->oformat;
/* Add the audio and video streams using the default format codecs
* and initialize the codecs. */
if (fmt->audio_codec != AV_CODEC_ID_NONE) {
add_stream(&audio_st, oc, &audio_codec, fmt->audio_codec);
}
/* Now that all the parameters are set, we can open the audio and
* video codecs and allocate the necessary encode buffers. */
open_audio(oc, audio_codec, &audio_st, opt);
av_dump_format(oc, 0, filename, 1);
/* open the output file, if needed */
if (!(fmt->flags & AVFMT_NOFILE)) {
ret = avio_open(&oc->pb, filename, AVIO_FLAG_WRITE);
if (ret < 0) {
fprintf(stderr, "Could not open '%s': %s\n", filename,
av_err2str(ret));
return 1;
}
}
/* Write the stream header, if any. */
ret = avformat_write_header(oc, &opt);
if (ret < 0) {
fprintf(stderr, "Error occurred when opening output file: %s\n",
av_err2str(ret));
return 1;
}
while (encode_audio) {
/* select the stream to encode */
encode_audio = !write_audio_frame(oc, &audio_st);
}
/* Write the trailer, if any. The trailer must be written before you
* close the CodecContexts open when you wrote the header; otherwise
* av_write_trailer() may try to use memory that was freed on
* av_codec_close(). */
av_write_trailer(oc);
/* Close each codec. */
close_stream(oc, &audio_st);
if (!(fmt->flags & AVFMT_NOFILE))
/* Close the output file. */
avio_close(oc->pb);
/* free the stream */
avformat_free_context(oc);
return 0;
}
/* media file output */
int main(int argc, char **argv)
{
const char *filename;
AVOutputFormat *fmt;
AVFormatContext *oc;
AVStream *video_st = NULL;
AVCodec *video_codec = NULL;
double video_time;
int flush, ret;
/* Initialize libavcodec, and register all codecs and formats. */
av_register_all();
filename = "E:\\muxing.mp4";
/* allocate the output media context */
avformat_alloc_output_context2(&oc, NULL, NULL, filename);
if (!oc) {
printf("Could not deduce output format from file extension: using MPEG.\n");
avformat_alloc_output_context2(&oc, NULL, "mpeg", filename);
}
if (!oc)
return 1;
fmt = oc->oformat; //muxing 할 때 outputformat 설정
/* Add the audio and video streams using the default format codecs
* and initialize the codecs. */
//fmt->video_codec = AV_CODEC_ID_H264;
fmt->video_codec = AV_CODEC_ID_MPEG4;
if (fmt->video_codec != AV_CODEC_ID_NONE)
video_st = add_stream(oc, &video_codec, fmt->video_codec); // add_stream(AVFormatContext *oc, AVCodec **codec,enum AVCodecID codec_id)
// codec parameters set 함수
/* Now that all the parameters are set, we can open the audio and
* video codecs and allocate the necessary encode buffers. */
if (video_st)
open_video(oc, video_codec, video_st); // (AVFormatContext *oc, AVCodec *codec, AVStream *st)
// 코댁 열기, 프레임 설정
av_dump_format(oc, 0, filename, 1); // 정보 출력 디버깅 함수
/* open the output file, if needed */
if (!(fmt->flags & AVFMT_NOFILE)) {
ret = avio_open(&oc->pb, filename, AVIO_FLAG_WRITE);
if (ret < 0) {
char buf[256];
av_strerror(ret, buf, sizeof(buf));
fprintf(stderr, "Could not open '%s': %s\n", filename, buf);
return 1;
}
}
/* Write the stream header, if any. */
ret = avformat_write_header(oc, NULL); // Allocate the stream private data and write the stream header to an output media file.
// 헤더파일 생성 -> 본체 생성 -> 마무리 작업
if (ret < 0) {
char buf[256];
av_strerror(ret, buf, sizeof(buf));
fprintf(stderr, "Error occurred when opening output file: %s\n", buf);
return 1;
}
flush = 0;
while ((video_st && !video_is_eof)) {
if (!flush && (!video_st)) {
flush = 1;
}
if (video_st && !video_is_eof) {
write_video_frame(oc, video_st, flush); // 본체 생성
}
if (frame_count == 10000)
break;
}
/* Write the trailer, if any. The trailer must be written before you
* close the CodecContexts open when you wrote the header; otherwise
* av_write_trailer() may try to use memory that was freed on
* av_codec_close(). */
av_write_trailer(oc);
/* Close each codec. */
if (video_st)
close_video(oc, video_st);
if (!(fmt->flags & AVFMT_NOFILE))
/* Close the output file. */
avio_close(oc->pb);
/* free the stream */
avformat_free_context(oc);
return 0;
}
static int
rtp_new_av_stream(RTSPContext *ctx, struct sockaddr_in *sin, int streamid, enum AVCodecID codecid) {
AVOutputFormat *fmt = NULL;
AVFormatContext *fmtctx = NULL;
AVStream *stream = NULL;
AVCodecContext *encoder = NULL;
uint8_t *dummybuf = NULL;
//
if(streamid > VIDEO_SOURCE_CHANNEL_MAX) {
ga_error("invalid stream index (%d > %d)\n",
streamid, VIDEO_SOURCE_CHANNEL_MAX);
return -1;
}
if(codecid != rtspconf->video_encoder_codec->id
&& codecid != rtspconf->audio_encoder_codec->id) {
ga_error("invalid codec (%d)\n", codecid);
return -1;
}
if(ctx->fmtctx[streamid] != NULL) {
ga_error("duplicated setup to an existing stream (%d)\n",
streamid);
return -1;
}
if((fmt = av_guess_format("rtp", NULL, NULL)) == NULL) {
ga_error("RTP not supported.\n");
return -1;
}
if((fmtctx = avformat_alloc_context()) == NULL) {
ga_error("create avformat context failed.\n");
return -1;
}
fmtctx->oformat = fmt;
if(ctx->mtu > 0) {
if(fmtctx->packet_size > 0) {
fmtctx->packet_size =
ctx->mtu < fmtctx->packet_size ? ctx->mtu : fmtctx->packet_size;
} else {
fmtctx->packet_size = ctx->mtu;
}
ga_error("RTP: packet size set to %d (configured: %d)\n",
fmtctx->packet_size, ctx->mtu);
}
#ifdef HOLE_PUNCHING
if(ffio_open_dyn_packet_buf(&fmtctx->pb, ctx->mtu) < 0) {
ga_error("cannot open dynamic packet buffer\n");
return -1;
}
ga_error("RTP: Dynamic buffer opened, max_packet_size=%d.\n",
(int) fmtctx->pb->max_packet_size);
if(ctx->lower_transport[streamid] == RTSP_LOWER_TRANSPORT_UDP) {
if(rtp_open_ports(ctx, streamid) < 0) {
ga_error("RTP: open ports failed - %s\n", strerror(errno));
return -1;
}
}
#else
if(ctx->lower_transport[streamid] == RTSP_LOWER_TRANSPORT_UDP) {
snprintf(fmtctx->filename, sizeof(fmtctx->filename),
"rtp://%s:%d", inet_ntoa(sin->sin_addr), ntohs(sin->sin_port));
if(avio_open(&fmtctx->pb, fmtctx->filename, AVIO_FLAG_WRITE) < 0) {
ga_error("cannot open URL: %s\n", fmtctx->filename);
return -1;
}
ga_error("RTP/UDP: URL opened [%d]: %s, max_packet_size=%d\n",
streamid, fmtctx->filename, fmtctx->pb->max_packet_size);
} else if(ctx->lower_transport[streamid] == RTSP_LOWER_TRANSPORT_TCP) {
// XXX: should we use avio_open_dyn_buf(&fmtctx->pb)?
if(ffio_open_dyn_packet_buf(&fmtctx->pb, ctx->mtu) < 0) {
ga_error("cannot open dynamic packet buffer\n");
return -1;
}
ga_error("RTP/TCP: Dynamic buffer opened, max_packet_size=%d.\n",
(int) fmtctx->pb->max_packet_size);
}
#endif
fmtctx->pb->seekable = 0;
//
if((stream = ga_avformat_new_stream(fmtctx, 0,
codecid == rtspconf->video_encoder_codec->id ?
rtspconf->video_encoder_codec : rtspconf->audio_encoder_codec)) == NULL) {
ga_error("Cannot create new stream (%d)\n", codecid);
return -1;
}
//
if(codecid == rtspconf->video_encoder_codec->id) {
encoder = ga_avcodec_vencoder_init(
stream->codec,
rtspconf->video_encoder_codec,
video_source_out_width(streamid),
video_source_out_height(streamid),
rtspconf->video_fps,
rtspconf->vso);
} else if(codecid == rtspconf->audio_encoder_codec->id) {
encoder = ga_avcodec_aencoder_init(
stream->codec,
rtspconf->audio_encoder_codec,
rtspconf->audio_bitrate,
rtspconf->audio_samplerate,
rtspconf->audio_channels,
rtspconf->audio_codec_format,
rtspconf->audio_codec_channel_layout);
}
if(encoder == NULL) {
ga_error("Cannot init encoder\n");
return -1;
}
//
ctx->encoder[streamid] = encoder;
ctx->stream[streamid] = stream;
ctx->fmtctx[streamid] = fmtctx;
// write header
if(avformat_write_header(ctx->fmtctx[streamid], NULL) < 0) {
ga_error("Cannot write stream id %d.\n", streamid);
return -1;
}
#ifdef HOLE_PUNCHING
avio_close_dyn_buf(ctx->fmtctx[streamid]->pb, &dummybuf);
av_free(dummybuf);
#else
if(ctx->lower_transport[streamid] == RTSP_LOWER_TRANSPORT_TCP) {
/*int rlen;
rlen =*/ avio_close_dyn_buf(ctx->fmtctx[streamid]->pb, &dummybuf);
av_free(dummybuf);
}
#endif
return 0;
}
static bool ffemu_init_muxer(ffemu_t *handle)
{
AVFormatContext *ctx = avformat_alloc_context();
av_strlcpy(ctx->filename, handle->params.filename, sizeof(ctx->filename));
ctx->oformat = av_guess_format(NULL, ctx->filename, NULL);
if (!ctx->oformat)
return false;
// FFmpeg sure likes to make things difficult.
#if defined(AVIO_FLAG_WRITE)
#define FFMPEG_FLAG_RW AVIO_FLAG_WRITE
#elif defined(AVIO_WRONLY)
#define FFMPEG_FLAG_RW AVIO_WRONLY
#elif defined(URL_WRONLY)
#define FFMPEG_FLAG_RW URL_WRONLY
#else
#define FFMPEG_FLAG_RW 2 // Seems to be consistent, but you never know.
#endif
#ifdef HAVE_FFMPEG_AVIO_OPEN
if (avio_open(&ctx->pb, ctx->filename, FFMPEG_FLAG_RW) < 0)
#else
if (url_fopen(&ctx->pb, ctx->filename, FFMPEG_FLAG_RW) < 0)
#endif
{
av_free(ctx);
return false;
}
#ifdef HAVE_FFMPEG_AVFORMAT_NEW_STREAM
AVStream *stream = avformat_new_stream(ctx, handle->video.encoder);
#else
unsigned stream_cnt = 0;
AVStream *stream = av_new_stream(ctx, stream_cnt++);
#endif
stream->codec = handle->video.codec;
if (ctx->oformat->flags & AVFMT_GLOBALHEADER)
handle->video.codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
handle->muxer.vstream = stream;
handle->muxer.vstream->sample_aspect_ratio = handle->video.codec->sample_aspect_ratio;
#ifdef HAVE_FFMPEG_AVFORMAT_NEW_STREAM
stream = avformat_new_stream(ctx, handle->audio.encoder);
#else
stream = av_new_stream(ctx, stream_cnt++);
#endif
stream->codec = handle->audio.codec;
if (ctx->oformat->flags & AVFMT_GLOBALHEADER)
handle->audio.codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
handle->muxer.astream = stream;
#ifdef AVFMT_TS_NONSTRICT
// Avoids a warning at end about non-monotonically increasing DTS values.
// It seems to be harmless to disable this.
if (g_settings.video.h264_record)
ctx->oformat->flags |= AVFMT_TS_NONSTRICT;
#endif
av_dict_set(&ctx->metadata, "title", "RetroArch video dump", 0);
#ifdef HAVE_FFMPEG_AVFORMAT_WRITE_HEADER
if (avformat_write_header(ctx, NULL) < 0)
#else
if (av_write_header(ctx) != 0)
#endif
return false;
handle->muxer.ctx = ctx;
return true;
}
MediaRecorder::MediaRecorder(const char * outfile,int width, int height)
{
audiofailed = false;
/* INIT SOUND RECORDING */
debug_samples_out = fopen("audiosamples.s16","wb");
audio_samples_written = 0;
pa_context* pactx;
pa_mainloop * m = pa_mainloop_new();
m_api = pa_mainloop_get_api(m);
pactx = pa_context_new(m_api,"Rec1");
if ( pa_context_connect(pactx,NULL,(pa_context_flags_t)0,NULL) < 0 )
printf("Cannot connect to pulseaudio\n");
int ret;
pa_context_set_state_callback(pactx, context_state_callback, this);
pa_mainloop_run(m,&ret);
std::cout << "Use source: " << monitorsources[defaultsink] << std::endl;
static const pa_sample_spec ss = {
.format = PA_SAMPLE_S16LE,
.rate = 44100,
.channels = 2
};
pa_context_disconnect(pactx);
int error;
s = pa_simple_new(NULL,"GLCAP Record",PA_STREAM_RECORD,monitorsources[defaultsink].c_str(), "record", &ss, NULL,NULL , &error);
if ( !s )
{
printf("Cannot create pa_simple\n");
}
run = true;
ready = false;
firstframe = true;
this->width = width;
this->height = height;
pthread_mutex_init(&encode_mutex,NULL);
pthread_mutex_init(&sound_buffer_lock,NULL);
pthread_cond_init(&encode_cond,NULL);
pthread_create(&encode_thread,NULL,(void*(*)(void*))&MediaRecorder::EncodingThread,this);
av_log_set_level(AV_LOG_DEBUG);
outCtx = avformat_alloc_context();
outCtx->oformat = av_guess_format(NULL, outfile, NULL);
snprintf(outCtx->filename, sizeof(outCtx->filename), "%s", outfile);
codec = avcodec_find_encoder(AV_CODEC_ID_MPEG4);
acodec = avcodec_find_encoder(AV_CODEC_ID_MP2);
ctx = avcodec_alloc_context3(codec);
actx = avcodec_alloc_context3(acodec);
avcodec_get_context_defaults3(actx,acodec);
avcodec_get_context_defaults3(ctx,codec);
ctx->width = width;
ctx->height = height;
ctx->bit_rate = 6000*1000;
std::cout << ctx->time_base.den << " " << ctx->time_base.num << std::endl;
ctx->time_base.den = TIMEBASE;
ctx->time_base.num = 1;
ctx->thread_count = 4;
ctx->qmin = 2;
ctx->qmax = 31;
ctx->b_sensitivity = 100;
ctx->gop_size = 1;
ctx->me_method = 1;
ctx->global_quality = 100;
ctx->lowres = 0;
ctx->bit_rate_tolerance = 200000;
actx->sample_fmt = AV_SAMPLE_FMT_S16;
actx->sample_rate = 44100;
actx->channels = 2;
actx->time_base.den = 44100;
actx->time_base.num = 1;
actx->bit_rate = 128000;
actx->frame_size = 8192;
actx->channel_layout = 3;
/* ctx->compression_level = 0;
ctx->trellis = 0;
ctx->gop_size = 1; /* emit one intra frame every ten frames */
/*ctx->me_pre_cmp = 0;
ctx->me_cmp = 0;
ctx->me_sub_cmp = 0;
ctx->mb_cmp = 2;
ctx->pre_dia_size = 0;
ctx->dia_size = 1;
ctx->quantizer_noise_shaping = 0; // qns=0
ctx->noise_reduction = 0; // nr=0
ctx->mb_decision = 0; // mbd=0 ("realtime" encoding)
ctx->flags &= ~CODEC_FLAG_QPEL;
ctx->flags &= ~CODEC_FLAG_4MV;
ctx->trellis = 0;
ctx->flags &= ~CODEC_FLAG_CBP_RD;
ctx->flags &= ~CODEC_FLAG_QP_RD;
ctx->flags &= ~CODEC_FLAG_MV0;*/
//ctx->s
ctx->pix_fmt = PIX_FMT_YUV420P;
if (avcodec_open2(ctx, codec, NULL) < 0) {
fprintf(stderr, "Could not open codec\n");
}
if (avcodec_open2(actx, acodec, NULL) < 0) {
fprintf(stderr, "Could not open audio codec\n");
audiofailed = true;
}
printf("frame_size: %d\n",actx->frame_size);
pthread_create(&record_sound_thread,NULL,(void*(*)(void*))&MediaRecorder::RecordingThread,this);
AVStream* s = av_new_stream(outCtx,0);
s->codec = ctx;
s->r_frame_rate.den = TIMEBASE;
s->r_frame_rate.num = 1;
if (!audiofailed )
{
AVStream* as = av_new_stream(outCtx,1);
as->codec = actx;
as->r_frame_rate.den = 44100;
as->r_frame_rate.num = 1;
}
picture = alloc_picture(PIX_FMT_YUV420P, ctx->width, ctx->height);
if (!picture) {
fprintf(stderr, "Could not allocate picture\n");
exit(1);
}
tmp_picture = NULL;
tmp_picture = alloc_picture(PIX_FMT_RGBA, ctx->width, ctx->height);
if (!tmp_picture) {
fprintf(stderr, "Could not allocate temporary picture\n");
exit(1);
}
img_convert_ctx = sws_getContext(ctx->width, ctx->height,
PIX_FMT_RGBA,
ctx->width, ctx->height,
PIX_FMT_YUV420P,
SWS_FAST_BILINEAR , NULL, NULL, NULL);
if (img_convert_ctx == NULL) {
fprintf(stderr,
"Cannot initialize the conversion context\n");
exit(1);
}
av_dump_format(outCtx, 0, outfile, 1);
avio_open2(&outCtx->pb, outfile, AVIO_FLAG_WRITE,NULL,NULL);
avformat_write_header(outCtx,NULL);
}
MediaRecorder::~MediaRecorder()
{
run = false;
ready = false;
pthread_cond_broadcast(&encode_cond);
printf("Joining thread..\n");
pthread_join(encode_thread,NULL);
printf("Joining recording thread..\n");
pthread_join(record_sound_thread,NULL);
printf("Done\n");
av_write_trailer(outCtx);
av_free(picture);
avformat_free_context(outCtx);
pa_simple_free(s);
fclose(debug_samples_out);
}
int fcount = 0;
void MediaRecorder::AppendFrame(float time, int width, int height, char* data)
{
if ( !ready )
return ;
printf("AppendFrame\n");
this->time = getcurrenttime2();
if ( firstframe )
{
starttime = getcurrenttime2();
firstframe = false;
}
this->height = height;
this->width = width;
m_data = data;
ready = false;
pthread_cond_broadcast(&encode_cond);
/*int i = 0;
unsigned int numpixels = width * height;
unsigned int ui = numpixels;
unsigned int vi = numpixels + numpixels / 4;
for ( int j = 0; j < height; j++ )
{
for ( int k = 0; k < width; k++ )
{
int sR = data[i*4+0];
int sG = data[i*4+1];
int sB = data[i*4+2];
picture->data[0][i] = ( (66*sR + 129*sG + 25*sB + 128) >> 8) + 16;
if (0 == j%2 && 0 == k%2)
{
picture->data[0][ui++] = ( (-38*sR - 74*sG + 112*sB + 128) >> 8) + 128;
picture->data[0][vi++] = ( (112*sR - 94*sG - 18*sB + 128) >> 8) + 128;
}
i++;
}
}*/
// printf("End flip %f\n",(float)getcurrenttime2());
//memcpy(tmp_picture->data[0],data,width*height*4);
}
void MediaRecorder::EncodingThread()
{
while ( run )
{
printf("Encode thread ready\n");
ready = true;
pthread_cond_wait(&encode_cond,&encode_mutex);
if (!run)
{
printf("Encoding finished\n");
break;
}
for ( int y = 0; y < height; y++ )
{
/*for ( int x = 0; x < width; x++ )
{*/
char r,g,b;
int oldindex = (y*width);
int newindex = ((height-1-y)*width);
memcpy(&tmp_picture->data[0][(newindex)*4],&m_data[oldindex*4],width*4);
/* r = data[oldindex*4+0];
g = data[oldindex*4+1];
b = data[oldindex*4+2];
tmp_picture->data[0][(newindex)*4+0] = r;
tmp_picture->data[0][(newindex)*4+1] = g;
tmp_picture->data[0][(newindex)*4+2] = b; */
// }
}
sws_scale(img_convert_ctx,tmp_picture->data,tmp_picture->linesize,0,height,picture->data,picture->linesize);
AVPacket p;
av_init_packet(&p);
p.data = NULL;
p.size = 0;
picture->pts = int64_t((time-starttime)*TIMEBASE);
uint64_t vpts = picture->pts;
// picture->pts = time*30.0;
int got_frame;
printf("%p %p\n",ctx, picture);
if(avcodec_encode_video2(ctx, &p, picture, &got_frame) < 0) return;
if(got_frame)
{
// outContainer is "mp4"
p.pts = vpts;
p.dts = AV_NOPTS_VALUE;
av_write_frame(outCtx, &p);
av_free_packet(&p);
}
//sleep(1);
printf("End enc frame %f, pts %lld\n",(float)getcurrenttime2(),picture->pts);
AVFrame * aframe = avcodec_alloc_frame();
bool unlocked = false;
while ( sound_buffers.size() > 0 )
{
uint64_t apts = audio_samples_written;
/* if ( apts > vpts )
break;*/
pthread_mutex_lock(&sound_buffer_lock);
short * buf = sound_buffers.front();
sound_buffers.pop_front();
pthread_mutex_unlock(&sound_buffer_lock);
if (!audiofailed )
{
unlocked = true;
aframe->nb_samples = actx->frame_size;
aframe->channel_layout = actx->channel_layout;
aframe->format = AV_SAMPLE_FMT_S16;
aframe->channels = actx->channels;
avcodec_fill_audio_frame(aframe,actx->channels,AV_SAMPLE_FMT_S16,(char*)buf,actx->frame_size*2*2,0);
// avcodec_fill_audio_frame(aframe,actx->channels,actx->sample_fmt,(char*)buf,actx->frame_size*2,0);
printf("sound_buffers.size() = %d\n",sound_buffers.size());
av_init_packet(&p);
p.data = NULL;
p.size = 0;
avcodec_encode_audio2(actx,&p,aframe,&got_frame);
if ( got_frame )
{
p.stream_index = 1;
p.flags |= AV_PKT_FLAG_KEY;
av_write_frame(outCtx,&p);
av_free_packet(&p);
}
audio_samples_written += actx->frame_size;//samples/2 each channel
}
//printf("Consumed 1024 samples\n");
delete[] buf;
}
/* if ( !unlocked )
pthread_mutex_unlock(&sound_buffer_lock);*/
avcodec_free_frame(&aframe);
}
}
bool MediaRecorder::isReady()
{
return ready;
}
bool AVIDump::CreateFile()
{
AVCodec* codec = nullptr;
s_format_context = avformat_alloc_context();
std::stringstream s_file_index_str;
s_file_index_str << s_file_index;
snprintf(s_format_context->filename, sizeof(s_format_context->filename), "%s",
(File::GetUserPath(D_DUMPFRAMES_IDX) + "framedump" + s_file_index_str.str() + ".avi")
.c_str());
File::CreateFullPath(s_format_context->filename);
// Ask to delete file
if (File::Exists(s_format_context->filename))
{
if (SConfig::GetInstance().m_DumpFramesSilent ||
AskYesNoT("Delete the existing file '%s'?", s_format_context->filename))
{
File::Delete(s_format_context->filename);
}
else
{
// Stop and cancel dumping the video
return false;
}
}
if (!(s_format_context->oformat = av_guess_format("avi", nullptr, nullptr)) ||
!(s_stream = avformat_new_stream(s_format_context, codec)))
{
return false;
}
s_stream->codec->codec_id =
g_Config.bUseFFV1 ? AV_CODEC_ID_FFV1 : s_format_context->oformat->video_codec;
if (!g_Config.bUseFFV1)
s_stream->codec->codec_tag =
MKTAG('X', 'V', 'I', 'D'); // Force XVID FourCC for better compatibility
s_stream->codec->codec_type = AVMEDIA_TYPE_VIDEO;
s_stream->codec->bit_rate = 400000;
s_stream->codec->width = s_width;
s_stream->codec->height = s_height;
s_stream->codec->time_base.num = 1;
s_stream->codec->time_base.den = VideoInterface::GetTargetRefreshRate();
s_stream->codec->gop_size = 12;
s_stream->codec->pix_fmt = g_Config.bUseFFV1 ? AV_PIX_FMT_BGRA : AV_PIX_FMT_YUV420P;
if (!(codec = avcodec_find_encoder(s_stream->codec->codec_id)) ||
(avcodec_open2(s_stream->codec, codec, nullptr) < 0))
{
return false;
}
s_src_frame = av_frame_alloc();
s_scaled_frame = av_frame_alloc();
s_scaled_frame->format = s_stream->codec->pix_fmt;
s_scaled_frame->width = s_width;
s_scaled_frame->height = s_height;
#if LIBAVCODEC_VERSION_MAJOR >= 55
if (av_frame_get_buffer(s_scaled_frame, 1))
return false;
#else
if (avcodec_default_get_buffer(s_stream->codec, s_scaled_frame))
return false;
#endif
NOTICE_LOG(VIDEO, "Opening file %s for dumping", s_format_context->filename);
if (avio_open(&s_format_context->pb, s_format_context->filename, AVIO_FLAG_WRITE) < 0 ||
avformat_write_header(s_format_context, nullptr))
{
WARN_LOG(VIDEO, "Could not open %s", s_format_context->filename);
return false;
}
OSD::AddMessage(StringFromFormat("Dumping Frames to \"%s\" (%dx%d)", s_format_context->filename,
s_width, s_height));
return true;
}
int main(int argc, char *argv[])
{
IDeckLinkIterator *deckLinkIterator = CreateDeckLinkIteratorInstance();
DeckLinkCaptureDelegate *delegate;
BMDDisplayMode selectedDisplayMode = bmdModeNTSC;
int displayModeCount = 0;
int exitStatus = 1;
int aconnection = 0, vconnection = 0, camera = 0, i = 0;
int ch;
AVDictionary *opts = NULL;
BMDPixelFormat pix = bmdFormat8BitYUV;
HRESULT result;
pthread_t th;
pthread_mutex_init(&sleepMutex, NULL);
pthread_cond_init(&sleepCond, NULL);
av_register_all();
if (!deckLinkIterator) {
fprintf(stderr,
"This application requires the DeckLink drivers installed.\n");
goto bail;
}
// Parse command line options
while ((ch = getopt(argc, argv, "?hvc:s:f:a:m:n:p:M:F:C:A:V:o:")) != -1) {
switch (ch) {
case 'v':
g_verbose = true;
break;
case 'm':
g_videoModeIndex = atoi(optarg);
break;
case 'c':
g_audioChannels = atoi(optarg);
if (g_audioChannels != 2 &&
g_audioChannels != 8 &&
g_audioChannels != 16) {
fprintf(
stderr,
"Invalid argument: Audio Channels must be either 2, 8 or 16\n");
goto bail;
}
break;
case 's':
g_audioSampleDepth = atoi(optarg);
switch (g_audioSampleDepth) {
case 16:
sample_fmt = AV_SAMPLE_FMT_S16;
break;
case 32:
sample_fmt = AV_SAMPLE_FMT_S32;
break;
default:
fprintf(stderr,
"Invalid argument:"
" Audio Sample Depth must be either 16 bits"
" or 32 bits\n");
goto bail;
}
break;
case 'p':
switch (atoi(optarg)) {
case 8:
pix = bmdFormat8BitYUV;
pix_fmt = PIX_FMT_UYVY422;
break;
case 10:
pix = bmdFormat10BitYUV;
pix_fmt = PIX_FMT_YUV422P10;
break;
default:
fprintf(
stderr,
"Invalid argument: Pixel Format Depth must be either 8 bits or 10 bits\n");
goto bail;
}
break;
case 'f':
g_videoOutputFile = optarg;
break;
case 'n':
g_maxFrames = atoi(optarg);
break;
case 'M':
g_memoryLimit = atoi(optarg) * 1024 * 1024 * 1024L;
break;
case 'F':
fmt = av_guess_format(optarg, NULL, NULL);
break;
case 'A':
aconnection = atoi(optarg);
break;
case 'V':
vconnection = atoi(optarg);
break;
case 'C':
camera = atoi(optarg);
break;
case 'S':
serial_fd = open(optarg, O_RDWR | O_NONBLOCK);
break;
case 'o':
if (av_dict_parse_string(&opts, optarg, "=", ":", 0) < 0) {
fprintf(stderr, "Cannot parse option string %s\n",
optarg);
goto bail;
}
case '?':
case 'h':
usage(0);
}
}
/* Connect to the first DeckLink instance */
do
result = deckLinkIterator->Next(&deckLink);
while (i++ < camera);
if (result != S_OK) {
fprintf(stderr, "No DeckLink PCI cards found.\n");
goto bail;
}
if (deckLink->QueryInterface(IID_IDeckLinkInput,
(void **)&deckLinkInput) != S_OK) {
goto bail;
}
result = deckLink->QueryInterface(IID_IDeckLinkConfiguration,
(void **)&deckLinkConfiguration);
if (result != S_OK) {
fprintf(
stderr,
"Could not obtain the IDeckLinkConfiguration interface - result = %08x\n",
result);
goto bail;
}
result = S_OK;
switch (aconnection) {
case 1:
result = DECKLINK_SET_AUDIO_CONNECTION(bmdAudioConnectionAnalog);
break;
case 2:
result = DECKLINK_SET_AUDIO_CONNECTION(bmdAudioConnectionEmbedded);
break;
case 3:
result = DECKLINK_SET_AUDIO_CONNECTION(bmdAudioConnectionAESEBU);
break;
default:
// do not change it
break;
}
if (result != S_OK) {
fprintf(stderr, "Failed to set audio input - result = %08x\n", result);
goto bail;
}
result = S_OK;
switch (vconnection) {
case 1:
result = DECKLINK_SET_VIDEO_CONNECTION(bmdVideoConnectionComposite);
break;
case 2:
result = DECKLINK_SET_VIDEO_CONNECTION(bmdVideoConnectionComponent);
break;
case 3:
result = DECKLINK_SET_VIDEO_CONNECTION(bmdVideoConnectionHDMI);
break;
case 4:
result = DECKLINK_SET_VIDEO_CONNECTION(bmdVideoConnectionSDI);
break;
case 5:
result = DECKLINK_SET_VIDEO_CONNECTION(bmdVideoConnectionOpticalSDI);
break;
case 6:
result = DECKLINK_SET_VIDEO_CONNECTION(bmdVideoConnectionSVideo);
break;
default:
// do not change it
break;
}
if (result != S_OK) {
fprintf(stderr, "Failed to set video input - result %08x\n", result);
goto bail;
}
delegate = new DeckLinkCaptureDelegate();
deckLinkInput->SetCallback(delegate);
// Obtain an IDeckLinkDisplayModeIterator to enumerate the display modes supported on output
result = deckLinkInput->GetDisplayModeIterator(&displayModeIterator);
if (result != S_OK) {
fprintf(
stderr,
"Could not obtain the video output display mode iterator - result = %08x\n",
result);
goto bail;
}
if (!g_videoOutputFile) {
fprintf(stderr,
"Missing argument: Please specify output path using -f\n");
goto bail;
}
if (!fmt) {
fmt = av_guess_format(NULL, g_videoOutputFile, NULL);
if (!fmt) {
fprintf(
stderr,
"Unable to guess output format, please specify explicitly using -F\n");
goto bail;
}
}
if (g_videoModeIndex < 0) {
fprintf(stderr, "No video mode specified\n");
usage(0);
}
selectedDisplayMode = -1;
while (displayModeIterator->Next(&displayMode) == S_OK) {
if (g_videoModeIndex == displayModeCount) {
selectedDisplayMode = displayMode->GetDisplayMode();
break;
}
displayModeCount++;
displayMode->Release();
}
if (selectedDisplayMode < 0) {
fprintf(stderr, "Invalid mode %d specified\n", g_videoModeIndex);
goto bail;
}
result = deckLinkInput->EnableVideoInput(selectedDisplayMode, pix, 0);
if (result != S_OK) {
fprintf(stderr,
"Failed to enable video input. Is another application using "
"the card?\n");
goto bail;
}
result = deckLinkInput->EnableAudioInput(bmdAudioSampleRate48kHz,
g_audioSampleDepth,
g_audioChannels);
if (result != S_OK) {
fprintf(stderr,
"Failed to enable audio input. Is another application using "
"the card?\n");
goto bail;
}
oc = avformat_alloc_context();
oc->oformat = fmt;
snprintf(oc->filename, sizeof(oc->filename), "%s", g_videoOutputFile);
fmt->video_codec = (pix == bmdFormat8BitYUV ? AV_CODEC_ID_RAWVIDEO : AV_CODEC_ID_V210);
fmt->audio_codec = (sample_fmt == AV_SAMPLE_FMT_S16 ? AV_CODEC_ID_PCM_S16LE : AV_CODEC_ID_PCM_S32LE);
video_st = add_video_stream(oc, fmt->video_codec);
audio_st = add_audio_stream(oc, fmt->audio_codec);
if (serial_fd > 0)
data_st = add_data_stream(oc, AV_CODEC_ID_TEXT);
if (!(fmt->flags & AVFMT_NOFILE)) {
if (avio_open(&oc->pb, oc->filename, AVIO_FLAG_WRITE) < 0) {
fprintf(stderr, "Could not open '%s'\n", oc->filename);
exit(1);
}
}
avformat_write_header(oc, NULL);
avpacket_queue_init(&queue);
result = deckLinkInput->StartStreams();
if (result != S_OK) {
goto bail;
}
// All Okay.
exitStatus = 0;
if (pthread_create(&th, NULL, push_packet, oc))
goto bail;
// Block main thread until signal occurs
pthread_mutex_lock(&sleepMutex);
pthread_cond_wait(&sleepCond, &sleepMutex);
pthread_mutex_unlock(&sleepMutex);
deckLinkInput->StopStreams();
fprintf(stderr, "Stopping Capture\n");
avpacket_queue_end(&queue);
bail:
if (displayModeIterator != NULL) {
displayModeIterator->Release();
displayModeIterator = NULL;
}
if (deckLinkInput != NULL) {
deckLinkInput->Release();
deckLinkInput = NULL;
}
if (deckLink != NULL) {
deckLink->Release();
deckLink = NULL;
}
if (deckLinkIterator != NULL) {
deckLinkIterator->Release();
}
if (oc != NULL) {
av_write_trailer(oc);
if (!(fmt->flags & AVFMT_NOFILE)) {
/* close the output file */
avio_close(oc->pb);
}
}
return exitStatus;
}
AVWRAP_DECL int AVWrapper_Init(
void (*pAddFileLogRaw)(const char*),
const char* pFilename,
const char* pDesc,
const char* pSoundFile,
const char* pFormatName,
const char* pVCodecName,
const char* pACodecName,
int Width, int Height,
int FramerateNum, int FramerateDen,
int VQuality)
{
int ret;
AddFileLogRaw = pAddFileLogRaw;
av_log_set_callback( &LogCallback );
g_Width = Width;
g_Height = Height;
g_Framerate.num = FramerateNum;
g_Framerate.den = FramerateDen;
g_VQuality = VQuality;
// initialize libav and register all codecs and formats
av_register_all();
// find format
g_pFormat = av_guess_format(pFormatName, NULL, NULL);
if (!g_pFormat)
return FatalError("Format \"%s\" was not found", pFormatName);
// allocate the output media context
g_pContainer = avformat_alloc_context();
if (!g_pContainer)
return FatalError("Could not allocate output context");
g_pContainer->oformat = g_pFormat;
// store description of file
av_dict_set(&g_pContainer->metadata, "comment", pDesc, 0);
// append extesnion to filename
char ext[16];
strncpy(ext, g_pFormat->extensions, 16);
ext[15] = 0;
ext[strcspn(ext,",")] = 0;
snprintf(g_pContainer->filename, sizeof(g_pContainer->filename), "%s.%s", pFilename, ext);
// find codecs
g_pVCodec = avcodec_find_encoder_by_name(pVCodecName);
g_pACodec = avcodec_find_encoder_by_name(pACodecName);
// add audio and video stream to container
g_pVStream = NULL;
g_pAStream = NULL;
if (g_pVCodec)
{
ret = AddVideoStream();
if (ret < 0)
return ret;
}
else
Log("Video codec \"%s\" was not found; video will be ignored.\n", pVCodecName);
if (g_pACodec)
{
g_pSoundFile = fopen(pSoundFile, "rb");
if (g_pSoundFile)
{
fread(&g_Frequency, 4, 1, g_pSoundFile);
fread(&g_Channels, 4, 1, g_pSoundFile);
AddAudioStream();
}
else
Log("Could not open %s\n", pSoundFile);
}
else
Log("Audio codec \"%s\" was not found; audio will be ignored.\n", pACodecName);
if (!g_pAStream && !g_pVStream)
return FatalError("No video, no audio, aborting...");
// write format info to log
av_dump_format(g_pContainer, 0, g_pContainer->filename, 1);
// open the output file, if needed
if (!(g_pFormat->flags & AVFMT_NOFILE))
{
if (avio_open(&g_pContainer->pb, g_pContainer->filename, AVIO_FLAG_WRITE) < 0)
return FatalError("Could not open output file (%s)", g_pContainer->filename);
}
// write the stream header, if any
avformat_write_header(g_pContainer, NULL);
g_pVFrame->pts = -1;
return 0;
}
int main(int argc, char **argv)
{
char *in_graph_desc, **out_dev_name;
int nb_out_dev = 0, nb_streams = 0;
AVFilterGraph *in_graph = NULL;
Stream *streams = NULL, *st;
AVFrame *frame = NULL;
int i, j, run = 1, ret;
//av_log_set_level(AV_LOG_DEBUG);
if (argc < 3) {
av_log(NULL, AV_LOG_ERROR,
"Usage: %s filter_graph dev:out [dev2:out2...]\n\n"
"Examples:\n"
"%s movie=file.nut:s=v+a xv:- alsa:default\n"
"%s movie=file.nut:s=v+a uncodedframecrc:pipe:0\n",
argv[0], argv[0], argv[0]);
exit(1);
}
in_graph_desc = argv[1];
out_dev_name = argv + 2;
nb_out_dev = argc - 2;
av_register_all();
avdevice_register_all();
avfilter_register_all();
/* Create input graph */
if (!(in_graph = avfilter_graph_alloc())) {
ret = AVERROR(ENOMEM);
av_log(NULL, AV_LOG_ERROR, "Unable to alloc graph graph: %s\n",
av_err2str(ret));
goto fail;
}
ret = avfilter_graph_parse_ptr(in_graph, in_graph_desc, NULL, NULL, NULL);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Unable to parse graph: %s\n",
av_err2str(ret));
goto fail;
}
nb_streams = 0;
for (i = 0; i < in_graph->nb_filters; i++) {
AVFilterContext *f = in_graph->filters[i];
for (j = 0; j < f->nb_inputs; j++) {
if (!f->inputs[j]) {
av_log(NULL, AV_LOG_ERROR, "Graph has unconnected inputs\n");
ret = AVERROR(EINVAL);
goto fail;
}
}
for (j = 0; j < f->nb_outputs; j++)
if (!f->outputs[j])
nb_streams++;
}
if (!nb_streams) {
av_log(NULL, AV_LOG_ERROR, "Graph has no output stream\n");
ret = AVERROR(EINVAL);
goto fail;
}
if (nb_out_dev != 1 && nb_out_dev != nb_streams) {
av_log(NULL, AV_LOG_ERROR,
"Graph has %d output streams, %d devices given\n",
nb_streams, nb_out_dev);
ret = AVERROR(EINVAL);
goto fail;
}
if (!(streams = av_calloc(nb_streams, sizeof(*streams)))) {
ret = AVERROR(ENOMEM);
av_log(NULL, AV_LOG_ERROR, "Could not allocate streams\n");
}
st = streams;
for (i = 0; i < in_graph->nb_filters; i++) {
AVFilterContext *f = in_graph->filters[i];
for (j = 0; j < f->nb_outputs; j++) {
if (!f->outputs[j]) {
if ((ret = create_sink(st++, in_graph, f, j)) < 0)
goto fail;
}
}
}
av_assert0(st - streams == nb_streams);
if ((ret = avfilter_graph_config(in_graph, NULL)) < 0) {
av_log(NULL, AV_LOG_ERROR, "Failed to configure graph\n");
goto fail;
}
/* Create output devices */
for (i = 0; i < nb_out_dev; i++) {
char *fmt = NULL, *dev = out_dev_name[i];
st = &streams[i];
if ((dev = strchr(dev, ':'))) {
*(dev++) = 0;
fmt = out_dev_name[i];
}
ret = avformat_alloc_output_context2(&st->mux, NULL, fmt, dev);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Failed to allocate output: %s\n",
av_err2str(ret));
goto fail;
}
if (!(st->mux->oformat->flags & AVFMT_NOFILE)) {
ret = avio_open2(&st->mux->pb, st->mux->filename, AVIO_FLAG_WRITE,
NULL, NULL);
if (ret < 0) {
av_log(st->mux, AV_LOG_ERROR, "Failed to init output: %s\n",
av_err2str(ret));
goto fail;
}
}
}
for (; i < nb_streams; i++)
streams[i].mux = streams[0].mux;
/* Create output device streams */
for (i = 0; i < nb_streams; i++) {
st = &streams[i];
if (!(st->stream = avformat_new_stream(st->mux, NULL))) {
ret = AVERROR(ENOMEM);
av_log(NULL, AV_LOG_ERROR, "Failed to create output stream\n");
goto fail;
}
st->stream->codec->codec_type = st->link->type;
st->stream->time_base = st->stream->codec->time_base =
st->link->time_base;
switch (st->link->type) {
case AVMEDIA_TYPE_VIDEO:
st->stream->codec->codec_id = AV_CODEC_ID_RAWVIDEO;
st->stream->avg_frame_rate =
st->stream-> r_frame_rate = av_buffersink_get_frame_rate(st->sink);
st->stream->codec->width = st->link->w;
st->stream->codec->height = st->link->h;
st->stream->codec->sample_aspect_ratio = st->link->sample_aspect_ratio;
st->stream->codec->pix_fmt = st->link->format;
break;
case AVMEDIA_TYPE_AUDIO:
st->stream->codec->channel_layout = st->link->channel_layout;
st->stream->codec->channels = avfilter_link_get_channels(st->link);
st->stream->codec->sample_rate = st->link->sample_rate;
st->stream->codec->sample_fmt = st->link->format;
st->stream->codec->codec_id =
av_get_pcm_codec(st->stream->codec->sample_fmt, -1);
break;
default:
av_assert0(!"reached");
}
}
/* Init output devices */
for (i = 0; i < nb_out_dev; i++) {
st = &streams[i];
if ((ret = avformat_write_header(st->mux, NULL)) < 0) {
av_log(st->mux, AV_LOG_ERROR, "Failed to init output: %s\n",
av_err2str(ret));
goto fail;
}
}
/* Check output devices */
for (i = 0; i < nb_streams; i++) {
st = &streams[i];
ret = av_write_uncoded_frame_query(st->mux, st->stream->index);
if (ret < 0) {
av_log(st->mux, AV_LOG_ERROR,
"Uncoded frames not supported on stream #%d: %s\n",
i, av_err2str(ret));
goto fail;
}
}
while (run) {
ret = avfilter_graph_request_oldest(in_graph);
if (ret < 0) {
if (ret == AVERROR_EOF) {
run = 0;
} else {
av_log(NULL, AV_LOG_ERROR, "Error filtering: %s\n",
av_err2str(ret));
break;
}
}
for (i = 0; i < nb_streams; i++) {
st = &streams[i];
while (1) {
if (!frame && !(frame = av_frame_alloc())) {
ret = AVERROR(ENOMEM);
av_log(NULL, AV_LOG_ERROR, "Could not allocate frame\n");
goto fail;
}
ret = av_buffersink_get_frame_flags(st->sink, frame,
AV_BUFFERSINK_FLAG_NO_REQUEST);
if (ret < 0) {
if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF)
av_log(NULL, AV_LOG_WARNING, "Error in sink: %s\n",
av_err2str(ret));
break;
}
if (frame->pts != AV_NOPTS_VALUE)
frame->pts = av_rescale_q(frame->pts,
st->link ->time_base,
st->stream->time_base);
ret = av_interleaved_write_uncoded_frame(st->mux,
st->stream->index,
frame);
frame = NULL;
if (ret < 0) {
av_log(st->stream->codec, AV_LOG_ERROR,
"Error writing frame: %s\n", av_err2str(ret));
goto fail;
}
}
}
}
ret = 0;
for (i = 0; i < nb_out_dev; i++) {
st = &streams[i];
av_write_trailer(st->mux);
}
fail:
av_frame_free(&frame);
avfilter_graph_free(&in_graph);
if (streams) {
for (i = 0; i < nb_out_dev; i++) {
st = &streams[i];
if (st->mux) {
if (st->mux->pb)
avio_closep(&st->mux->pb);
avformat_free_context(st->mux);
}
}
}
av_freep(&streams);
return ret < 0;
}
int main(int argc, char* argv[])
{
AVFormatContext* pFormatCtx;
AVOutputFormat* fmt;
AVStream* audio_st;
AVCodecContext* pCodecCtx;
AVCodec* pCodec;
uint8_t* frame_buf;
AVFrame* pFrame;
AVPacket pkt;
int got_frame=0;
int ret=0;
int size=0;
FILE *in_file=NULL; //Raw PCM data
int framenum=1000; //Audio frame number
const char* out_file = "tdjm.aac"; //Output URL
int i;
in_file= fopen("tdjm.pcm", "rb");
av_register_all();
//Method 1.
pFormatCtx = avformat_alloc_context();
fmt = av_guess_format(NULL, out_file, NULL);
pFormatCtx->oformat = fmt;
//Method 2.
//avformat_alloc_output_context2(&pFormatCtx, NULL, NULL, out_file);
//fmt = pFormatCtx->oformat;
//Open output URL
if (avio_open(&pFormatCtx->pb,out_file, AVIO_FLAG_READ_WRITE) < 0){
printf("Failed to open output file!\n");
return -1;
}
audio_st = avformat_new_stream(pFormatCtx, 0);
if (audio_st==NULL){
return -1;
}
pCodecCtx = audio_st->codec;
pCodecCtx->codec_id = fmt->audio_codec;
pCodecCtx->codec_type = AVMEDIA_TYPE_AUDIO;
pCodecCtx->sample_fmt = AV_SAMPLE_FMT_S16;
pCodecCtx->sample_rate= 44100;
pCodecCtx->channel_layout=AV_CH_LAYOUT_STEREO;
pCodecCtx->channels = av_get_channel_layout_nb_channels(pCodecCtx->channel_layout);
pCodecCtx->bit_rate = 64000;
//Show some information
av_dump_format(pFormatCtx, 0, out_file, 1);
pCodec = avcodec_find_encoder(pCodecCtx->codec_id);
if (!pCodec){
printf("Can not find encoder!\n");
return -1;
}
if (avcodec_open2(pCodecCtx, pCodec,NULL) < 0){
printf("Failed to open encoder!\n");
return -1;
}
pFrame = av_frame_alloc();
pFrame->nb_samples= pCodecCtx->frame_size;
pFrame->format= pCodecCtx->sample_fmt;
size = av_samples_get_buffer_size(NULL, pCodecCtx->channels,pCodecCtx->frame_size,pCodecCtx->sample_fmt, 1);
frame_buf = (uint8_t *)av_malloc(size);
avcodec_fill_audio_frame(pFrame, pCodecCtx->channels, pCodecCtx->sample_fmt,(const uint8_t*)frame_buf, size, 1);
//Write Header
avformat_write_header(pFormatCtx,NULL);
av_new_packet(&pkt,size);
for (i=0; i<framenum; i++){
//Read PCM
if (fread(frame_buf, 1, size, in_file) <= 0){
printf("Failed to read raw data! \n");
return -1;
}else if(feof(in_file)){
break;
}
pFrame->data[0] = frame_buf; //PCM Data
pFrame->pts=i*100;
got_frame=0;
//Encode
ret = avcodec_encode_audio2(pCodecCtx, &pkt,pFrame, &got_frame);
if(ret < 0){
printf("Failed to encode!\n");
return -1;
}
if (got_frame==1){
printf("Succeed to encode 1 frame! \tsize:%5d\n",pkt.size);
pkt.stream_index = audio_st->index;
ret = av_write_frame(pFormatCtx, &pkt);
av_free_packet(&pkt);
}
}
//Flush Encoder
ret = flush_encoder(pFormatCtx,0);
if (ret < 0) {
printf("Flushing encoder failed\n");
return -1;
}
//Write Trailer
av_write_trailer(pFormatCtx);
//Clean
if (audio_st){
avcodec_close(audio_st->codec);
av_free(pFrame);
av_free(frame_buf);
}
avio_close(pFormatCtx->pb);
avformat_free_context(pFormatCtx);
fclose(in_file);
return 0;
}
static int open_slave(AVFormatContext *avf, char *slave, TeeSlave *tee_slave)
{
int i, ret;
AVDictionary *options = NULL;
AVDictionaryEntry *entry;
char *filename;
char *format = NULL, *select = NULL, *on_fail = NULL;
char *use_fifo = NULL, *fifo_options_str = NULL;
AVFormatContext *avf2 = NULL;
AVStream *st, *st2;
int stream_count;
int fullret;
char *subselect = NULL, *next_subselect = NULL, *first_subselect = NULL, *tmp_select = NULL;
if ((ret = ff_tee_parse_slave_options(avf, slave, &options, &filename)) < 0)
return ret;
#define STEAL_OPTION(option, field) do { \
if ((entry = av_dict_get(options, option, NULL, 0))) { \
field = entry->value; \
entry->value = NULL; /* prevent it from being freed */ \
av_dict_set(&options, option, NULL, 0); \
} \
} while (0)
STEAL_OPTION("f", format);
STEAL_OPTION("select", select);
STEAL_OPTION("onfail", on_fail);
STEAL_OPTION("use_fifo", use_fifo);
STEAL_OPTION("fifo_options", fifo_options_str);
ret = parse_slave_failure_policy_option(on_fail, tee_slave);
if (ret < 0) {
av_log(avf, AV_LOG_ERROR,
"Invalid onfail option value, valid options are 'abort' and 'ignore'\n");
goto end;
}
ret = parse_slave_fifo_options(use_fifo, fifo_options_str, tee_slave);
if (ret < 0) {
av_log(avf, AV_LOG_ERROR, "Error parsing fifo options: %s\n", av_err2str(ret));
goto end;
}
if (tee_slave->use_fifo) {
if (options) {
char *format_options_str = NULL;
ret = av_dict_get_string(options, &format_options_str, '=', ':');
if (ret < 0)
goto end;
ret = av_dict_set(&tee_slave->fifo_options, "format_options", format_options_str,
AV_DICT_DONT_STRDUP_VAL);
if (ret < 0)
goto end;
}
if (format) {
ret = av_dict_set(&tee_slave->fifo_options, "fifo_format", format,
AV_DICT_DONT_STRDUP_VAL);
format = NULL;
if (ret < 0)
goto end;
}
av_dict_free(&options);
options = tee_slave->fifo_options;
}
ret = avformat_alloc_output_context2(&avf2, NULL,
tee_slave->use_fifo ? "fifo" :format, filename);
if (ret < 0)
goto end;
tee_slave->avf = avf2;
av_dict_copy(&avf2->metadata, avf->metadata, 0);
avf2->opaque = avf->opaque;
avf2->io_open = avf->io_open;
avf2->io_close = avf->io_close;
avf2->interrupt_callback = avf->interrupt_callback;
avf2->flags = avf->flags;
tee_slave->stream_map = av_calloc(avf->nb_streams, sizeof(*tee_slave->stream_map));
if (!tee_slave->stream_map) {
ret = AVERROR(ENOMEM);
goto end;
}
stream_count = 0;
for (i = 0; i < avf->nb_streams; i++) {
st = avf->streams[i];
if (select) {
tmp_select = av_strdup(select); // av_strtok is destructive so we regenerate it in each loop
if (!tmp_select) {
ret = AVERROR(ENOMEM);
goto end;
}
fullret = 0;
first_subselect = tmp_select;
next_subselect = NULL;
while (subselect = av_strtok(first_subselect, slave_select_sep, &next_subselect)) {
first_subselect = NULL;
ret = avformat_match_stream_specifier(avf, avf->streams[i], subselect);
if (ret < 0) {
av_log(avf, AV_LOG_ERROR,
"Invalid stream specifier '%s' for output '%s'\n",
subselect, slave);
goto end;
}
if (ret != 0) {
fullret = 1; // match
break;
}
}
av_freep(&tmp_select);
if (fullret == 0) { /* no match */
tee_slave->stream_map[i] = -1;
continue;
}
}
tee_slave->stream_map[i] = stream_count++;
if (!(st2 = avformat_new_stream(avf2, NULL))) {
ret = AVERROR(ENOMEM);
goto end;
}
ret = ff_stream_encode_params_copy(st2, st);
if (ret < 0)
goto end;
}
ret = ff_format_output_open(avf2, filename, NULL);
if (ret < 0) {
av_log(avf, AV_LOG_ERROR, "Slave '%s': error opening: %s\n", slave,
av_err2str(ret));
goto end;
}
if ((ret = avformat_write_header(avf2, &options)) < 0) {
av_log(avf, AV_LOG_ERROR, "Slave '%s': error writing header: %s\n",
slave, av_err2str(ret));
goto end;
}
tee_slave->header_written = 1;
tee_slave->bsfs = av_calloc(avf2->nb_streams, sizeof(*tee_slave->bsfs));
if (!tee_slave->bsfs) {
ret = AVERROR(ENOMEM);
goto end;
}
entry = NULL;
while (entry = av_dict_get(options, "bsfs", NULL, AV_DICT_IGNORE_SUFFIX)) {
const char *spec = entry->key + strlen("bsfs");
if (*spec) {
if (strspn(spec, slave_bsfs_spec_sep) != 1) {
av_log(avf, AV_LOG_ERROR,
"Specifier separator in '%s' is '%c', but only characters '%s' "
"are allowed\n", entry->key, *spec, slave_bsfs_spec_sep);
ret = AVERROR(EINVAL);
goto end;
}
spec++; /* consume separator */
}
for (i = 0; i < avf2->nb_streams; i++) {
ret = avformat_match_stream_specifier(avf2, avf2->streams[i], spec);
if (ret < 0) {
av_log(avf, AV_LOG_ERROR,
"Invalid stream specifier '%s' in bsfs option '%s' for slave "
"output '%s'\n", spec, entry->key, filename);
goto end;
}
if (ret > 0) {
av_log(avf, AV_LOG_DEBUG, "spec:%s bsfs:%s matches stream %d of slave "
"output '%s'\n", spec, entry->value, i, filename);
if (tee_slave->bsfs[i]) {
av_log(avf, AV_LOG_WARNING,
"Duplicate bsfs specification associated to stream %d of slave "
"output '%s', filters will be ignored\n", i, filename);
continue;
}
ret = av_bsf_list_parse_str(entry->value, &tee_slave->bsfs[i]);
if (ret < 0) {
av_log(avf, AV_LOG_ERROR,
"Error parsing bitstream filter sequence '%s' associated to "
"stream %d of slave output '%s'\n", entry->value, i, filename);
goto end;
}
}
}
av_dict_set(&options, entry->key, NULL, 0);
}
for (i = 0; i < avf->nb_streams; i++){
int target_stream = tee_slave->stream_map[i];
if (target_stream < 0)
continue;
if (!tee_slave->bsfs[target_stream]) {
/* Add pass-through bitstream filter */
ret = av_bsf_get_null_filter(&tee_slave->bsfs[target_stream]);
if (ret < 0) {
av_log(avf, AV_LOG_ERROR,
"Failed to create pass-through bitstream filter: %s\n",
av_err2str(ret));
goto end;
}
}
tee_slave->bsfs[target_stream]->time_base_in = avf->streams[i]->time_base;
ret = avcodec_parameters_copy(tee_slave->bsfs[target_stream]->par_in,
avf->streams[i]->codecpar);
if (ret < 0)
goto end;
ret = av_bsf_init(tee_slave->bsfs[target_stream]);
if (ret < 0) {
av_log(avf, AV_LOG_ERROR,
"Failed to initialize bitstream filter(s): %s\n",
av_err2str(ret));
goto end;
}
}
if (options) {
entry = NULL;
while ((entry = av_dict_get(options, "", entry, AV_DICT_IGNORE_SUFFIX)))
av_log(avf2, AV_LOG_ERROR, "Unknown option '%s'\n", entry->key);
ret = AVERROR_OPTION_NOT_FOUND;
goto end;
}
end:
av_free(format);
av_free(select);
av_free(on_fail);
av_dict_free(&options);
av_freep(&tmp_select);
return ret;
}
int main(int argc, char **argv)
{
AVOutputFormat *ofmt = NULL;
AVFormatContext *ifmt_ctx = NULL, *ofmt_ctx = NULL;
AVPacket pkt;
const char *in_filename, *out_filename;
int ret, i;
if (argc < 3) {
printf("usage: %s input output\n"
"API example program to remux a media file with libavformat and libavcodec.\n"
"The output format is guessed according to the file extension.\n"
"\n", argv[0]);
return 1;
}
in_filename = argv[1];
out_filename = argv[2];
av_register_all();
if ((ret = avformat_open_input(&ifmt_ctx, in_filename, 0, 0)) < 0) {
fprintf(stderr, "Could not open input file '%s'", in_filename);
goto end;
}
if ((ret = avformat_find_stream_info(ifmt_ctx, 0)) < 0) {
fprintf(stderr, "Failed to retrieve input stream information");
goto end;
}
av_dump_format(ifmt_ctx, 0, in_filename, 0);
avformat_alloc_output_context2(&ofmt_ctx, NULL, NULL, out_filename);
if (!ofmt_ctx) {
fprintf(stderr, "Could not create output context\n");
ret = AVERROR_UNKNOWN;
goto end;
}
ofmt = ofmt_ctx->oformat;
for (i = 0; i < ifmt_ctx->nb_streams; i++) {
AVStream *in_stream = ifmt_ctx->streams[i];
AVStream *out_stream = avformat_new_stream(ofmt_ctx, in_stream->codec->codec);
if (!out_stream) {
fprintf(stderr, "Failed allocating output stream\n");
ret = AVERROR_UNKNOWN;
goto end;
}
ret = avcodec_copy_context(out_stream->codec, in_stream->codec);
if (ret < 0) {
fprintf(stderr, "Failed to copy context from input to output stream codec context\n");
goto end;
}
out_stream->codec->codec_tag = 0;
if (ofmt_ctx->oformat->flags & AVFMT_GLOBALHEADER)
out_stream->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
}
av_dump_format(ofmt_ctx, 0, out_filename, 1);
if (!(ofmt->flags & AVFMT_NOFILE)) {
ret = avio_open(&ofmt_ctx->pb, out_filename, AVIO_FLAG_WRITE);
if (ret < 0) {
fprintf(stderr, "Could not open output file '%s'", out_filename);
goto end;
}
}
ret = avformat_write_header(ofmt_ctx, NULL);
if (ret < 0) {
fprintf(stderr, "Error occurred when opening output file\n");
goto end;
}
while (1) {
AVStream *in_stream, *out_stream;
ret = av_read_frame(ifmt_ctx, &pkt);
if (ret < 0)
break;
in_stream = ifmt_ctx->streams[pkt.stream_index];
out_stream = ofmt_ctx->streams[pkt.stream_index];
log_packet(ifmt_ctx, &pkt, "in");
/* copy packet */
pkt.pts = av_rescale_q_rnd(pkt.pts, in_stream->time_base, out_stream->time_base, AV_ROUND_NEAR_INF|AV_ROUND_PASS_MINMAX);
pkt.dts = av_rescale_q_rnd(pkt.dts, in_stream->time_base, out_stream->time_base, AV_ROUND_NEAR_INF|AV_ROUND_PASS_MINMAX);
pkt.duration = av_rescale_q(pkt.duration, in_stream->time_base, out_stream->time_base);
pkt.pos = -1;
log_packet(ofmt_ctx, &pkt, "out");
ret = av_interleaved_write_frame(ofmt_ctx, &pkt);
if (ret < 0) {
fprintf(stderr, "Error muxing packet\n");
break;
}
av_free_packet(&pkt);
}
av_write_trailer(ofmt_ctx);
end:
avformat_close_input(&ifmt_ctx);
/* close output */
if (ofmt_ctx && !(ofmt->flags & AVFMT_NOFILE))
avio_closep(&ofmt_ctx->pb);
avformat_free_context(ofmt_ctx);
if (ret < 0 && ret != AVERROR_EOF) {
fprintf(stderr, "Error occurred: %s\n", av_err2str(ret));
return 1;
}
return 0;
}
static int open_output_file(const char *filename)
{
LOGI("enter open_output_file ----------------");
AVStream *out_stream;
AVStream *in_stream;
AVCodecContext *dec_ctx, *enc_ctx;
AVCodec *encoder;
int ret;
unsigned int i;
ofmt_ctx = NULL;
avformat_alloc_output_context2(&ofmt_ctx, NULL, NULL, filename);
if (!ofmt_ctx) {
LOGI("Could not create output context\n");
return AVERROR_UNKNOWN;
}
LOGI("start avformat_find_stream_info");
for (i = 0; i < ifmt_ctx->nb_streams; i++) {
out_stream = avformat_new_stream(ofmt_ctx, NULL);
if (!out_stream) {
LOGI("Failed allocating output stream\n");
return AVERROR_UNKNOWN;
}
in_stream = ifmt_ctx->streams[i];
dec_ctx = in_stream->codec;
enc_ctx = out_stream->codec;
dec_ctx->strict_std_compliance = FF_COMPLIANCE_EXPERIMENTAL;
enc_ctx->strict_std_compliance = FF_COMPLIANCE_EXPERIMENTAL;
if (dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO
|| dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) {
/* in this example, we choose transcoding to same codec */
encoder = avcodec_find_encoder(dec_ctx->codec_id);
if (!encoder) {
LOGI("Necessary encoder not found\n");
return AVERROR_INVALIDDATA;
}
/* In this example, we transcode to same properties (picture size,
* sample rate etc.). These properties can be changed for output
* streams easily using filters */
if (dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO) {
enc_ctx->height = dec_ctx->height;
enc_ctx->width = dec_ctx->width;
enc_ctx->sample_aspect_ratio = dec_ctx->sample_aspect_ratio;
/* take first format from list of supported formats */
enc_ctx->pix_fmt = encoder->pix_fmts[0];
/* video time_base can be set to whatever is handy and supported by encoder */
enc_ctx->time_base = dec_ctx->time_base;
} else {
enc_ctx->sample_rate = dec_ctx->sample_rate;
enc_ctx->channel_layout = dec_ctx->channel_layout;
enc_ctx->channels = av_get_channel_layout_nb_channels(enc_ctx->channel_layout);
/* take first format from list of supported formats */
enc_ctx->sample_fmt = encoder->sample_fmts[0];
enc_ctx->time_base = (AVRational){1, enc_ctx->sample_rate};
}
/* Third parameter can be used to pass settings to encoder */
ret = avcodec_open2(enc_ctx, encoder, NULL);
if (ret < 0) {
LOGI("Cannot open video encoder for stream #%u\n", i);
return ret;
}
} else if (dec_ctx->codec_type == AVMEDIA_TYPE_UNKNOWN) {
LOGI("Elementary stream #%d is of unknown type, cannot proceed\n", i);
return AVERROR_INVALIDDATA;
} else {
/* if this stream must be remuxed */
ret = avcodec_copy_context(ofmt_ctx->streams[i]->codec,
ifmt_ctx->streams[i]->codec);
if (ret < 0) {
LOGI("Copying stream context failed\n");
return ret;
}
}
if (ofmt_ctx->oformat->flags & AVFMT_GLOBALHEADER)
enc_ctx->flags |= CODEC_FLAG_GLOBAL_HEADER;
}
//av_dump_format(ofmt_ctx, 0, filename, 1);
if (!(ofmt_ctx->oformat->flags & AVFMT_NOFILE)) {
ret = avio_open(&ofmt_ctx->pb, filename, AVIO_FLAG_WRITE);
if (ret < 0) {
LOGI("Could not open output file '%s'", filename);
return ret;
}
}
/* init muxer, write output file header */
ret = avformat_write_header(ofmt_ctx, NULL);
if (ret < 0) {
LOGI("Error occurred when opening output file\n");
return ret;
}
LOGI("leave open_output_file");
return 0;
}
static void init_fps(int bf, int audio_preroll, int fps)
{
AVStream *st;
ctx = avformat_alloc_context();
if (!ctx)
exit(1);
ctx->oformat = av_guess_format(format, NULL, NULL);
if (!ctx->oformat)
exit(1);
ctx->pb = avio_alloc_context(iobuf, sizeof(iobuf), AVIO_FLAG_WRITE, NULL, NULL, io_write, NULL);
if (!ctx->pb)
exit(1);
ctx->flags |= AVFMT_FLAG_BITEXACT;
st = avformat_new_stream(ctx, NULL);
if (!st)
exit(1);
st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
st->codec->codec_id = AV_CODEC_ID_H264;
st->codec->width = 640;
st->codec->height = 480;
st->time_base.num = 1;
st->time_base.den = 30;
st->codec->extradata_size = sizeof(h264_extradata);
st->codec->extradata = av_mallocz(st->codec->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
if (!st->codec->extradata)
exit(1);
memcpy(st->codec->extradata, h264_extradata, sizeof(h264_extradata));
st->codec->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
video_st = st;
st = avformat_new_stream(ctx, NULL);
if (!st)
exit(1);
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
st->codec->codec_id = AV_CODEC_ID_AAC;
st->codec->sample_rate = 44100;
st->codec->channels = 2;
st->time_base.num = 1;
st->time_base.den = 44100;
st->codec->extradata_size = sizeof(aac_extradata);
st->codec->extradata = av_mallocz(st->codec->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
if (!st->codec->extradata)
exit(1);
memcpy(st->codec->extradata, aac_extradata, sizeof(aac_extradata));
st->codec->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
audio_st = st;
if (avformat_write_header(ctx, &opts) < 0)
exit(1);
av_dict_free(&opts);
frames = 0;
gop_size = 30;
duration = video_st->time_base.den / fps;
audio_duration = 1024 * audio_st->time_base.den / audio_st->codec->sample_rate;
if (audio_preroll)
audio_preroll = 2048 * audio_st->time_base.den / audio_st->codec->sample_rate;
bframes = bf;
video_dts = bframes ? -duration : 0;
audio_dts = -audio_preroll;
}
static int write_packet(AVFormatContext *s, AVPacket *pkt)
{
VideoMuxData *img = s->priv_data;
AVIOContext *pb[4];
char filename[1024];
AVCodecContext *codec = s->streams[pkt->stream_index]->codec;
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(codec->pix_fmt);
int i;
int nb_renames = 0;
if (!img->is_pipe) {
if (img->update) {
av_strlcpy(filename, img->path, sizeof(filename));
} else if (img->use_strftime) {
time_t now0;
struct tm *tm, tmpbuf;
time(&now0);
tm = localtime_r(&now0, &tmpbuf);
if (!strftime(filename, sizeof(filename), img->path, tm)) {
av_log(s, AV_LOG_ERROR, "Could not get frame filename with strftime\n");
return AVERROR(EINVAL);
}
} else if (av_get_frame_filename(filename, sizeof(filename), img->path, img->img_number) < 0 &&
img->img_number > 1) {
av_log(s, AV_LOG_ERROR,
"Could not get frame filename number %d from pattern '%s' (either set updatefirst or use a pattern like %%03d within the filename pattern)\n",
img->img_number, img->path);
return AVERROR(EINVAL);
}
for (i = 0; i < 4; i++) {
snprintf(img->tmp[i], sizeof(img->tmp[i]), "%s.tmp", filename);
av_strlcpy(img->target[i], filename, sizeof(img->target[i]));
if (avio_open2(&pb[i], img->use_rename ? img->tmp[i] : filename, AVIO_FLAG_WRITE,
&s->interrupt_callback, NULL) < 0) {
av_log(s, AV_LOG_ERROR, "Could not open file : %s\n", img->use_rename ? img->tmp[i] : filename);
return AVERROR(EIO);
}
if (!img->split_planes || i+1 >= desc->nb_components)
break;
filename[strlen(filename) - 1] = "UVAx"[i];
}
if (img->use_rename)
nb_renames = i + 1;
} else {
pb[0] = s->pb;
}
if (img->split_planes) {
int ysize = codec->width * codec->height;
int usize = AV_CEIL_RSHIFT(codec->width, desc->log2_chroma_w) * AV_CEIL_RSHIFT(codec->height, desc->log2_chroma_h);
if (desc->comp[0].depth >= 9) {
ysize *= 2;
usize *= 2;
}
avio_write(pb[0], pkt->data , ysize);
avio_write(pb[1], pkt->data + ysize , usize);
avio_write(pb[2], pkt->data + ysize + usize, usize);
avio_closep(&pb[1]);
avio_closep(&pb[2]);
if (desc->nb_components > 3) {
avio_write(pb[3], pkt->data + ysize + 2*usize, ysize);
avio_closep(&pb[3]);
}
} else if (img->muxer) {
int ret;
AVStream *st;
AVPacket pkt2 = {0};
AVFormatContext *fmt = NULL;
av_assert0(!img->split_planes);
ret = avformat_alloc_output_context2(&fmt, NULL, img->muxer, s->filename);
if (ret < 0)
return ret;
st = avformat_new_stream(fmt, NULL);
if (!st) {
avformat_free_context(fmt);
return AVERROR(ENOMEM);
}
st->id = pkt->stream_index;
fmt->pb = pb[0];
if ((ret = av_copy_packet(&pkt2, pkt)) < 0 ||
(ret = av_dup_packet(&pkt2)) < 0 ||
(ret = avcodec_copy_context(st->codec, s->streams[0]->codec)) < 0 ||
(ret = avformat_write_header(fmt, NULL)) < 0 ||
(ret = av_interleaved_write_frame(fmt, &pkt2)) < 0 ||
(ret = av_write_trailer(fmt)) < 0) {
av_packet_unref(&pkt2);
avformat_free_context(fmt);
return ret;
}
av_packet_unref(&pkt2);
avformat_free_context(fmt);
} else {
avio_write(pb[0], pkt->data, pkt->size);
}
avio_flush(pb[0]);
if (!img->is_pipe) {
avio_closep(&pb[0]);
for (i = 0; i < nb_renames; i++) {
ff_rename(img->tmp[i], img->target[i], s);
}
}
img->img_number++;
return 0;
}
int main(int argc, char **argv)
{
if (argc != 5) {
fprintf(stderr,
"Usage: %s <segment length> <output location> <filename prefix> <encoding profile>\n",
argv[0]);
return 1;
}
struct config_info config;
memset(&config, 0, sizeof(struct config_info));
config.segment_length = atoi(argv[1]);
config.temp_directory = argv[2];
config.filename_prefix = argv[3];
config.encoding_profile = argv[4];
config.input_filename = "pipe://1";
char *output_filename =
malloc(sizeof(char) *
(strlen(config.temp_directory) + 1 +
strlen(config.filename_prefix) + 10));
if (!output_filename) {
fprintf(stderr,
"Segmenter error: Could not allocate space for output filenames\n");
exit(1);
}
// ------------------ Done parsing input --------------
av_register_all();
AVInputFormat *input_format = av_find_input_format("mpegts");
if (!input_format) {
fprintf(stderr,
"Segmenter error: Could not find MPEG-TS demuxer\n");
exit(1);
}
AVFormatContext *input_context = NULL;
int ret = avformat_open_input(&input_context, config.input_filename,
input_format, NULL);
if (ret != 0) {
fprintf(stderr,
"Segmenter error: Could not open input file, make sure it is an mpegts file: %d\n",
ret);
exit(1);
}
if (avformat_find_stream_info(input_context, NULL) < 0) {
fprintf(stderr,
"Segmenter error: Could not read stream information\n");
exit(1);
}
AVOutputFormat *output_format = av_guess_format("mpegts", NULL, NULL);
if (!output_format) {
fprintf(stderr,
"Segmenter error: Could not find MPEG-TS muxer\n");
exit(1);
}
AVFormatContext *output_context = avformat_alloc_context();
if (!output_context) {
fprintf(stderr,
"Segmenter error: Could not allocated output context");
exit(1);
}
output_context->oformat = output_format;
// Don't print warnings when PTS and DTS are identical.
input_context->flags |= AVFMT_FLAG_IGNDTS;
int video_index = -1;
int audio_index = -1;
AVStream *video_stream;
AVStream *audio_stream;
int i;
for (i = 0;
i < input_context->nb_streams && (video_index < 0
|| audio_index < 0); i++) {
switch (input_context->streams[i]->codec->codec_type) {
case AVMEDIA_TYPE_VIDEO:
video_index = i;
input_context->streams[i]->discard = AVDISCARD_NONE;
video_stream =
add_output_stream(output_context,
input_context->streams[i]);
break;
case AVMEDIA_TYPE_AUDIO:
audio_index = i;
input_context->streams[i]->discard = AVDISCARD_NONE;
audio_stream =
add_output_stream(output_context,
input_context->streams[i]);
break;
default:
input_context->streams[i]->discard = AVDISCARD_ALL;
break;
}
}
#if LIBAVFORMAT_VERSION_MAJOR < 54
if (av_set_parameters(output_context, NULL) < 0) {
fprintf(stderr,
"Segmenter error: Invalid output format parameters\n");
exit(1);
}
#endif
av_dump_format(output_context, 0, config.filename_prefix, 1);
if (video_index >= 0) {
AVCodec *codec =
avcodec_find_decoder(video_stream->codec->codec_id);
if (!codec) {
fprintf(stderr,
"Segmenter error: Could not find video decoder, key frames will not be honored\n");
}
if (avcodec_open2(video_stream->codec, codec, NULL) < 0) {
fprintf(stderr,
"Segmenter error: Could not open video decoder, key frames will not be honored\n");
}
}
if (video_stream->codec->ticks_per_frame > 1) {
// h264 sets the ticks_per_frame and time_base.den but not time_base.num
// since we don't use ticks_per_frame, adjust time_base.num accordingly.
video_stream->codec->time_base.num *=
video_stream->codec->ticks_per_frame;
}
unsigned int output_index = 1;
snprintf(output_filename,
strlen(config.temp_directory) + 1 +
strlen(config.filename_prefix) + 10, "%s/%s-%05u.ts",
config.temp_directory, config.filename_prefix, output_index++);
if (avio_open(&output_context->pb, output_filename, AVIO_FLAG_WRITE) < 0) {
fprintf(stderr, "Segmenter error: Could not open '%s'\n",
output_filename);
exit(1);
}
if (avformat_write_header(output_context, NULL)) {
fprintf(stderr,
"Segmenter error: Could not write mpegts header to first output file\n");
exit(1);
}
// Track initial PTS values so we can subtract them out (removing aduio/video delay, since they seem incorrect).
int64_t initial_audio_pts = -1;
int64_t initial_video_pts = -1;
unsigned int first_segment = 1;
unsigned int last_segment = 0;
double prev_segment_time = 0;
int decode_done;
do {
double segment_time;
AVPacket packet;
decode_done = av_read_frame(input_context, &packet);
if (decode_done < 0) {
break;
}
if (av_dup_packet(&packet) < 0) {
fprintf(stderr,
"Segmenter error: Could not duplicate packet");
av_free_packet(&packet);
break;
}
if (packet.stream_index == video_index) {
if (initial_video_pts < 0)
initial_video_pts = packet.pts;
packet.pts -= initial_video_pts;
packet.dts = packet.pts;
if (packet.flags & AV_PKT_FLAG_KEY) {
segment_time =
(double)packet.pts *
video_stream->time_base.num /
video_stream->time_base.den;
} else {
segment_time = prev_segment_time;
}
} else if (packet.stream_index == audio_index) {
if (initial_audio_pts < 0)
initial_audio_pts = packet.pts;
packet.pts -= initial_audio_pts;
packet.dts = packet.pts;
segment_time = prev_segment_time;
} else {
segment_time = prev_segment_time;
}
// done writing the current file?
if (segment_time - prev_segment_time >= config.segment_length) {
avio_flush(output_context->pb);
avio_close(output_context->pb);
output_transfer_command(first_segment, ++last_segment,
0, config.encoding_profile);
snprintf(output_filename,
strlen(config.temp_directory) + 1 +
strlen(config.filename_prefix) + 10,
"%s/%s-%05u.ts", config.temp_directory,
config.filename_prefix, output_index++);
if (avio_open
(&output_context->pb, output_filename,
AVIO_FLAG_WRITE) < 0) {
fprintf(stderr,
"Segmenter error: Could not open '%s'\n",
output_filename);
break;
}
prev_segment_time = segment_time;
}
ret = av_write_frame(output_context, &packet);
if (ret < 0) {
fprintf(stderr,
"Segmenter error: Could not write frame of stream: %d\n",
ret);
} else if (ret > 0) {
fprintf(stderr,
"Segmenter info: End of stream requested\n");
av_free_packet(&packet);
break;
}
av_free_packet(&packet);
} while (!decode_done);
av_write_trailer(output_context);
if (video_index >= 0) {
avcodec_close(video_stream->codec);
}
for (i = 0; i < output_context->nb_streams; i++) {
av_freep(&output_context->streams[i]->codec);
av_freep(&output_context->streams[i]);
}
avio_close(output_context->pb);
av_free(output_context);
output_transfer_command(first_segment, ++last_segment, 1,
config.encoding_profile);
return 0;
}
static int init_filter(struct dec_audio *da, AVPacket *pkt)
{
struct spdifContext *spdif_ctx = da->priv;
int profile = FF_PROFILE_UNKNOWN;
if (spdif_ctx->codec_id == AV_CODEC_ID_DTS)
profile = determine_codec_profile(da, pkt);
AVFormatContext *lavf_ctx = avformat_alloc_context();
if (!lavf_ctx)
goto fail;
spdif_ctx->lavf_ctx = lavf_ctx;
lavf_ctx->oformat = av_guess_format("spdif", NULL, NULL);
if (!lavf_ctx->oformat)
goto fail;
void *buffer = av_mallocz(OUTBUF_SIZE);
if (!buffer)
abort();
lavf_ctx->pb = avio_alloc_context(buffer, OUTBUF_SIZE, 1, spdif_ctx, NULL,
write_packet, NULL);
if (!lavf_ctx->pb) {
av_free(buffer);
goto fail;
}
// Request minimal buffering (not available on Libav)
#if LIBAVFORMAT_VERSION_MICRO >= 100
lavf_ctx->pb->direct = 1;
#endif
AVStream *stream = avformat_new_stream(lavf_ctx, 0);
if (!stream)
goto fail;
stream->codecpar->codec_id = spdif_ctx->codec_id;
AVDictionary *format_opts = NULL;
int num_channels = 0;
int sample_format = 0;
int samplerate = 0;
switch (spdif_ctx->codec_id) {
case AV_CODEC_ID_AAC:
sample_format = AF_FORMAT_S_AAC;
samplerate = 48000;
num_channels = 2;
break;
case AV_CODEC_ID_AC3:
sample_format = AF_FORMAT_S_AC3;
samplerate = 48000;
num_channels = 2;
break;
case AV_CODEC_ID_DTS: {
bool is_hd = profile == FF_PROFILE_DTS_HD_HRA ||
profile == FF_PROFILE_DTS_HD_MA ||
profile == FF_PROFILE_UNKNOWN;
if (spdif_ctx->use_dts_hd && is_hd) {
av_dict_set(&format_opts, "dtshd_rate", "768000", 0); // 4*192000
sample_format = AF_FORMAT_S_DTSHD;
samplerate = 192000;
num_channels = 2*4;
} else {
sample_format = AF_FORMAT_S_DTS;
samplerate = 48000;
num_channels = 2;
}
break;
}
case AV_CODEC_ID_EAC3:
sample_format = AF_FORMAT_S_EAC3;
samplerate = 192000;
num_channels = 2;
break;
case AV_CODEC_ID_MP3:
sample_format = AF_FORMAT_S_MP3;
samplerate = 48000;
num_channels = 2;
break;
case AV_CODEC_ID_TRUEHD:
sample_format = AF_FORMAT_S_TRUEHD;
samplerate = 192000;
num_channels = 8;
break;
default:
abort();
}
mp_audio_set_num_channels(&spdif_ctx->fmt, num_channels);
mp_audio_set_format(&spdif_ctx->fmt, sample_format);
spdif_ctx->fmt.rate = samplerate;
if (avformat_write_header(lavf_ctx, &format_opts) < 0) {
MP_FATAL(da, "libavformat spdif initialization failed.\n");
av_dict_free(&format_opts);
goto fail;
}
av_dict_free(&format_opts);
spdif_ctx->need_close = true;
return 0;
fail:
uninit(da);
return -1;
}
bool Movie::Setup()
{
if (!IsRecording())
return false;
if (!av)
return false;
bool success = true;
std::string err_msg;
alephone::Screen *scr = alephone::Screen::instance();
view_rect = scr->window_rect();
if (MainScreenIsOpenGL())
view_rect.y = scr->height() - (view_rect.y + view_rect.h);
view_rect.x *= scr->pixel_scale();
view_rect.y *= scr->pixel_scale();
view_rect.w *= scr->pixel_scale();
view_rect.h *= scr->pixel_scale();
temp_surface = SDL_CreateRGBSurface(SDL_SWSURFACE, view_rect.w, view_rect.h, 32,
0x00ff0000, 0x0000ff00, 0x000000ff,
0);
success = (temp_surface != NULL);
if (!success) err_msg = "Could not create SDL surface";
Mixer *mx = Mixer::instance();
av_register_all();
avcodec_register_all();
// Open output file
AVOutputFormat *fmt;
if (success)
{
fmt = av_guess_format("webm", NULL, NULL);
success = fmt;
if (!success) err_msg = "Could not find output format";
}
if (success)
{
av->fmt_ctx = avformat_alloc_context();
success = av->fmt_ctx;
if (!success) err_msg = "Could not allocate movie format context";
}
if (success)
{
av->fmt_ctx->oformat = fmt;
strncpy(av->fmt_ctx->filename, moviefile.c_str(), 1024);
success = (0 <= avio_open(&av->fmt_ctx->pb, av->fmt_ctx->filename, AVIO_FLAG_WRITE));
if (!success) err_msg = "Could not open movie file for writing";
}
// Open output video stream
AVCodec *video_codec;
AVStream *video_stream;
if (success)
{
video_codec = avcodec_find_encoder(AV_CODEC_ID_VP8);
success = video_codec;
if (!success) err_msg = "Could not find VP8 encoder";
}
if (success)
{
video_stream = avformat_new_stream(av->fmt_ctx, video_codec);
success = video_stream;
if (!success) err_msg = "Could not open output video stream";
}
if (success)
{
video_stream->codec->codec_id = video_codec->id;
video_stream->codec->codec_type = AVMEDIA_TYPE_VIDEO;
video_stream->codec->width = view_rect.w;
video_stream->codec->height = view_rect.h;
video_stream->codec->time_base = (AVRational){1, TICKS_PER_SECOND};
video_stream->codec->pix_fmt = AV_PIX_FMT_YUV420P;
video_stream->codec->flags |= CODEC_FLAG_CLOSED_GOP;
video_stream->codec->thread_count = get_cpu_count();
if (av->fmt_ctx->oformat->flags & AVFMT_GLOBALHEADER)
video_stream->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
av->video_stream_idx = video_stream->index;
// tuning options
int vq = graphics_preferences->movie_export_video_quality;
video_stream->codec->bit_rate = ScaleQuality(vq, 100*1024, 1024*1024, 10*1024*1024);
video_stream->codec->qmin = ScaleQuality(vq, 10, 4, 0);
video_stream->codec->qmax = ScaleQuality(vq, 63, 63, 50);
std::string crf = boost::lexical_cast<std::string>(ScaleQuality(vq, 63, 10, 4));
av_opt_set(video_stream->codec->priv_data, "crf", crf.c_str(), 0);
success = (0 <= avcodec_open2(video_stream->codec, video_codec, NULL));
if (!success) err_msg = "Could not open video codec";
}
if (success)
{
av->video_bufsize = view_rect.w * view_rect.h * 4 + 10000;
av->video_buf = static_cast<uint8_t *>(av_malloc(av->video_bufsize));
success = av->video_buf;
if (!success) err_msg = "Could not allocate video buffer";
}
if (success)
{
#if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(55,28,0)
av->video_frame = avcodec_alloc_frame();
#else
av->video_frame = av_frame_alloc();
#endif
success = av->video_frame;
if (!success) err_msg = "Could not allocate video frame";
}
if (success)
{
int numbytes = avpicture_get_size(video_stream->codec->pix_fmt, view_rect.w, view_rect.h);
av->video_data = static_cast<uint8_t *>(av_malloc(numbytes));
success = av->video_data;
if (!success) err_msg = "Could not allocate video data buffer";
}
if (success)
{
avpicture_fill(reinterpret_cast<AVPicture *>(av->video_frame), av->video_data, video_stream->codec->pix_fmt, view_rect.w, view_rect.h);
}
// Open output audio stream
AVCodec *audio_codec;
AVStream *audio_stream;
if (success)
{
audio_codec = avcodec_find_encoder(AV_CODEC_ID_VORBIS);
success = audio_codec;
if (!success) err_msg = "Could not find Vorbis encoder";
}
if (success)
{
audio_stream = avformat_new_stream(av->fmt_ctx, audio_codec);
success = audio_stream;
if (!success) err_msg = "Could not open output audio stream";
}
if (success)
{
audio_stream->codec->strict_std_compliance = FF_COMPLIANCE_EXPERIMENTAL;
audio_stream->codec->codec_id = audio_codec->id;
audio_stream->codec->codec_type = AVMEDIA_TYPE_AUDIO;
audio_stream->codec->sample_rate = mx->obtained.freq;
audio_stream->codec->time_base = (AVRational){1, mx->obtained.freq};
audio_stream->codec->channels = 2;
if (av->fmt_ctx->oformat->flags & AVFMT_GLOBALHEADER)
audio_stream->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
av->audio_stream_idx = audio_stream->index;
// tuning options
int aq = graphics_preferences->movie_export_audio_quality;
audio_stream->codec->global_quality = FF_QP2LAMBDA * (aq / 10);
audio_stream->codec->flags |= CODEC_FLAG_QSCALE;
audio_stream->codec->sample_fmt = AV_SAMPLE_FMT_FLTP;
success = (0 <= avcodec_open2(audio_stream->codec, audio_codec, NULL));
if (!success) err_msg = "Could not open audio codec";
}
if (success)
{
#if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(55,28,0)
av->audio_frame = avcodec_alloc_frame();
#else
av->audio_frame = av_frame_alloc();
#endif
success = av->audio_frame;
if (!success) err_msg = "Could not allocate audio frame";
}
if (success)
{
av->audio_fifo = av_fifo_alloc(262144);
success = av->audio_fifo;
if (!success) err_msg = "Could not allocate audio fifo";
}
if (success)
{
av->audio_data = reinterpret_cast<uint8_t *>(av_malloc(524288));
success = av->audio_data;
if (!success) err_msg = "Could not allocate audio data buffer";
}
if (success)
{
av->audio_data_conv = reinterpret_cast<uint8_t *>(av_malloc(524288));
success = av->audio_data_conv;
if (!success) err_msg = "Could not allocate audio conversion buffer";
}
// initialize conversion context
if (success)
{
av->sws_ctx = sws_getContext(temp_surface->w, temp_surface->h, AV_PIX_FMT_RGB32,
video_stream->codec->width,
video_stream->codec->height,
video_stream->codec->pix_fmt,
SWS_BILINEAR,
NULL, NULL, NULL);
success = av->sws_ctx;
if (!success) err_msg = "Could not create video conversion context";
}
// Start movie file
if (success)
{
video_stream->time_base = (AVRational){1, TICKS_PER_SECOND};
audio_stream->time_base = (AVRational){1, mx->obtained.freq};
avformat_write_header(av->fmt_ctx, NULL);
}
// set up our threads and intermediate storage
if (success)
{
videobuf.resize(av->video_bufsize);
audiobuf.resize(2 * 2 * mx->obtained.freq / 30);
}
if (success)
{
encodeReady = SDL_CreateSemaphore(0);
fillReady = SDL_CreateSemaphore(1);
stillEncoding = true;
success = encodeReady && fillReady;
if (!success) err_msg = "Could not create movie thread semaphores";
}
if (success)
{
encodeThread = SDL_CreateThread(Movie_EncodeThread, "MovieSetup_encodeThread", this);
success = encodeThread;
if (!success) err_msg = "Could not create movie encoding thread";
}
if (!success)
{
StopRecording();
std::string full_msg = "Your movie could not be exported. (";
full_msg += err_msg;
full_msg += ".)";
logError(full_msg.c_str());
alert_user(full_msg.c_str());
}
av->inited = success;
return success;
}
libav_encoder* libav_encoder::create( const char *path, unsigned width, unsigned height,
const std::pair<int, int>& fps, int bit_rate )
{
impl *m = new impl;
for (;;) {
m->format = av_guess_format(NULL, path, NULL);
if (!m->format)
break;
if ((m->format->flags & AVFMT_NOFILE) || (m->format->video_codec == CODEC_ID_NONE))
break;
m->formatCtx = avformat_alloc_context();
if (!m->formatCtx)
break;
m->formatCtx->oformat = m->format;
{
#if LIBAVFORMAT_VERSION_MAJOR >= 54
m->stream = avformat_new_stream(m->formatCtx, 0);
#else
m->stream = av_new_stream(m->formatCtx, 0);
#endif
if (!m->stream) {
fprintf(stderr, "Could not alloc stream\n");
break;
}
m->codecCtx = m->stream->codec;
m->codecCtx->codec_type = AVMEDIA_TYPE_VIDEO;
if (strcmp(m->format->name, "avi") == 0) {
m->codecCtx->codec_id = CODEC_ID_RAWVIDEO;
} else {
m->codecCtx->codec_id = m->format->video_codec;
}
AVCodec *codec = avcodec_find_encoder(m->codecCtx->codec_id);
if (!codec)
break;
if (strcmp(m->format->name, "avi") == 0) {
m->codecCtx->pix_fmt = PIX_FMT_BGR24;
} else {
if (codec->pix_fmts)
m->codecCtx->pix_fmt = codec->pix_fmts[0];
else
m->codecCtx->pix_fmt = PIX_FMT_YUV420P;
}
m->codecCtx->bit_rate = 8000000;
m->codecCtx->width = width; /* resolution must be a multiple of two */
m->codecCtx->height = height;
m->codecCtx->time_base.num = fps.second;
m->codecCtx->time_base.den = fps.first;
m->codecCtx->gop_size = 12; /* emit one intra frame every twelve frames at most */
if(m->formatCtx->oformat->flags & AVFMT_GLOBALHEADER)
m->codecCtx->flags |= CODEC_FLAG_GLOBAL_HEADER;
#if LIBAVFORMAT_VERSION_MAJOR >= 54
if (avcodec_open2(m->codecCtx, codec, NULL) < 0) break;
#else
if (avcodec_open(m->codecCtx, codec) < 0) break;
#endif
if (!(m->formatCtx->oformat->flags & AVFMT_RAWPICTURE)) {
m->output_size = m->codecCtx->width * m->codecCtx->height * 4;
m->output_buffer = (uint8_t*)av_malloc(m->output_size);
}
if (!alloc_frame(&m->frame1, &m->buffer1, m->codecCtx->pix_fmt, m->codecCtx->width, m->codecCtx->height))
break;
if (!alloc_frame(&m->frame0, &m->buffer0, PIX_FMT_RGB32, m->codecCtx->width, m->codecCtx->height))
break;
}
#if LIBAVFORMAT_VERSION_MAJOR >= 54
if (avio_open(&m->formatCtx->pb, path, AVIO_FLAG_WRITE) < 0) break;
avformat_write_header(m->formatCtx, NULL);
#else
if (url_fopen(&m->formatCtx->pb, path, URL_WRONLY) < 0) break;
av_write_header(m->formatCtx);
#endif
m->swsCtx = sws_getContext( m->codecCtx->width, m->codecCtx->height, PIX_FMT_RGB32,
m->codecCtx->width, m->codecCtx->height, m->codecCtx->pix_fmt,
SWS_POINT, NULL, NULL, NULL );
if (!m->swsCtx)
break;
return new libav_encoder(m);
}
delete m;
return 0;
}
int video_thr(LPVOID lpParam)
{
int iRet = -1;
AVFormatContext * pFmtCtx = NULL;
AVFormatContext * pRtmpFmtCtx = NULL;
AVInputFormat * pVideoInputFmt = NULL;
AVOutputFormat * pVideoOutfmt = NULL;
struct_stream_info * strct_streaminfo = NULL;
AVCodecContext * pCodecContext = NULL;
AVCodec * pCodec = NULL;
int iVideoIndex = -1;
int iVideo_Height = 0;
int iVideo_Width = 0;
int iVideoPic = 0;
int64_t start_time = 0;
int frame_index = 0;
SDL_Event event;
CLS_DlgStreamPusher* pThis = (CLS_DlgStreamPusher*)lpParam;
if (pThis == NULL){
TRACE("video_thr--pThis == NULL\n");
return iRet;
}
pVideoInputFmt = av_find_input_format("dshow");
if (pVideoInputFmt == NULL){
TRACE("pVideoInputFmt == NULL\n");
return iRet;
}
char* psDevName = pThis->GetDeviceName(n_Video);
if (psDevName == NULL){
TRACE("video_thr--psDevName == NULL");
return iRet;
}
while (1){
if (pThis->m_cstrPushAddr != ""){
break;
}
}
//根据推流地址获取到AVFormatContext
avformat_alloc_output_context2(&pRtmpFmtCtx, NULL, "flv", pThis->m_cstrPushAddr);
if (NULL == pRtmpFmtCtx){
TRACE("NULL == pRtmpFmtCtx");
return iRet;
}
pVideoOutfmt = pRtmpFmtCtx->oformat;
strct_streaminfo = pThis->m_pStreamInfo;
if (NULL == strct_streaminfo){
TRACE("NULL == strct_streaminfo");
return iRet;
}
FILE *fp_yuv = fopen("output.yuv", "wb+");
pFmtCtx = avformat_alloc_context();
if (avformat_open_input(&pFmtCtx, psDevName, pVideoInputFmt, NULL) != 0){
TRACE("avformat_open_input err!\n");
goto END;
}
if (avformat_find_stream_info(pFmtCtx, NULL) < 0){
TRACE("avformat_find_stream_info(pFmtCtx, NULL) < 0\n");
goto END;
}
for (int i = 0; i < pFmtCtx->nb_streams; i++){
if (pFmtCtx->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO){
iVideoIndex = i;
break;
}
}
if (iVideoIndex < 0){
TRACE("iVideoIndex < 0\n");
goto END;
}
pCodecContext = pFmtCtx->streams[iVideoIndex]->codec;
if (NULL == pCodecContext){
TRACE("NULL == pCodecContext");
goto END;
}
pCodec = avcodec_find_decoder(pCodecContext->codec_id);
if (pCodec == NULL){
TRACE("avcodec_find_decoder<0");
goto END;
}
if (avcodec_open2(pCodecContext, pCodec, NULL)<0){
TRACE("avcodec_open2<0");
goto END;
}
for (int i = 0; i < pFmtCtx->nb_streams; i++) {
//根据输入流创建输出流（Create output AVStream according to input AVStream）
AVStream *in_stream = pFmtCtx->streams[i];
AVStream *out_stream = avformat_new_stream(pRtmpFmtCtx, in_stream->codec->codec);
if (!out_stream) {
printf("Failed allocating output stream\n");
iRet = AVERROR_UNKNOWN;
goto END;
}
//复制AVCodecContext的设置（Copy the settings of AVCodecContext）
iRet = avcodec_copy_context(out_stream->codec, in_stream->codec);
if (iRet < 0) {
TRACE("Failed to copy context from input to output stream codec context\n");
goto END;
}
out_stream->codec->codec_tag = 0;
if (pRtmpFmtCtx->oformat->flags & AVFMT_GLOBALHEADER)
out_stream->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
}
if (!(pVideoOutfmt->flags & AVFMT_NOFILE)) {
iRet = avio_open(&pRtmpFmtCtx->pb, pThis->m_cstrPushAddr, AVIO_FLAG_WRITE);
if (iRet < 0) {
TRACE("Could not open output URL '%s'", pThis->m_cstrPushAddr);
goto END;
}
}
iRet = avformat_write_header(pRtmpFmtCtx, NULL);
if (iRet < 0) {
TRACE("Error occurred when opening output URL\n");
goto END;
}
start_time = av_gettime();
//获取视频的宽与高
iVideo_Height = pCodecContext->height;//strct_streaminfo->m_height;//
iVideo_Width = pCodecContext->width;//strct_streaminfo->m_width;//
TRACE("video_thr--video_height[%d],video_width[%d]", iVideo_Height
, iVideo_Width);
strct_streaminfo->m_pVideoPacket = (AVPacket*)av_malloc(sizeof(AVPacket));
strct_streaminfo->m_pVideoFrame = av_frame_alloc();
strct_streaminfo->m_pVideoFrameYUV = av_frame_alloc();
strct_streaminfo->m_pVideoOutBuffer = (uint8_t *)av_malloc(avpicture_get_size(AV_PIX_FMT_YUV420P, iVideo_Width, iVideo_Height));
avpicture_fill((AVPicture *)strct_streaminfo->m_pVideoFrameYUV, strct_streaminfo->m_pVideoOutBuffer, AV_PIX_FMT_YUV420P, iVideo_Width, iVideo_Height);
strct_streaminfo->m_video_sws_ctx = sws_getContext(iVideo_Width, iVideo_Height, pCodecContext->pix_fmt,
iVideo_Width, iVideo_Height, AV_PIX_FMT_YUV420P, SWS_BICUBIC, NULL, NULL, NULL);
if (NULL == strct_streaminfo->m_video_sws_ctx){
TRACE("NULL == strct_streaminfo->m_video_sws_ctx\n");
goto END;
}
strct_streaminfo->m_video_refresh_tid = SDL_CreateThread(video_refresh_thread, NULL, strct_streaminfo);
//从摄像头获取数据
for (;;){
AVStream *in_stream, *out_stream;
SDL_WaitEvent(&event);
if (event.type == FF_VIDEO_REFRESH_EVENT){
if (av_read_frame(pFmtCtx, strct_streaminfo->m_pVideoPacket) >= 0){
if (strct_streaminfo->m_pVideoPacket->pts == AV_NOPTS_VALUE){
//Write PTS
AVRational time_base1 = pFmtCtx->streams[iVideoIndex]->time_base;
//Duration between 2 frames (us)
int64_t calc_duration = (double)AV_TIME_BASE / av_q2d(pFmtCtx->streams[iVideoIndex]->r_frame_rate);
//Parameters
strct_streaminfo->m_pVideoPacket->pts = (double)(frame_index*calc_duration) / (double)(av_q2d(time_base1)*AV_TIME_BASE);
strct_streaminfo->m_pVideoPacket->dts = strct_streaminfo->m_pVideoPacket->pts;
strct_streaminfo->m_pVideoPacket->duration = (double)calc_duration / (double)(av_q2d(time_base1)*AV_TIME_BASE);
}
if (strct_streaminfo->m_pVideoPacket->stream_index == iVideoIndex){
AVRational time_base = pFmtCtx->streams[iVideoIndex]->time_base;
AVRational time_base_q = { 1, AV_TIME_BASE };
int64_t pts_time = av_rescale_q(strct_streaminfo->m_pVideoPacket->dts, time_base, time_base_q);
int64_t now_time = av_gettime() - start_time;
if (pts_time > now_time)
av_usleep(pts_time - now_time);
in_stream = pFmtCtx->streams[strct_streaminfo->m_pVideoPacket->stream_index];
out_stream = pRtmpFmtCtx->streams[strct_streaminfo->m_pVideoPacket->stream_index];
/* copy packet */
//转换PTS/DTS（Convert PTS/DTS）
strct_streaminfo->m_pVideoPacket->pts = av_rescale_q_rnd(strct_streaminfo->m_pVideoPacket->pts, in_stream->time_base, out_stream->time_base, (AVRounding)(AV_ROUND_NEAR_INF | AV_ROUND_PASS_MINMAX));
strct_streaminfo->m_pVideoPacket->dts = av_rescale_q_rnd(strct_streaminfo->m_pVideoPacket->dts, in_stream->time_base, out_stream->time_base, (AVRounding)(AV_ROUND_NEAR_INF | AV_ROUND_PASS_MINMAX));
strct_streaminfo->m_pVideoPacket->duration = av_rescale_q(strct_streaminfo->m_pVideoPacket->duration, in_stream->time_base, out_stream->time_base);
strct_streaminfo->m_pVideoPacket->pos = -1;
TRACE("Send %8d video frames to output URL\n", frame_index);
frame_index++;
iRet = av_interleaved_write_frame(pRtmpFmtCtx, strct_streaminfo->m_pVideoPacket);
if (iRet < 0) {
TRACE("Error muxing packet\n");
break;
}
if (pThis->m_blVideoShow){
//解码显示
iRet = avcodec_decode_video2(pCodecContext, strct_streaminfo->m_pVideoFrame, &iVideoPic, strct_streaminfo->m_pVideoPacket);
if (iRet < 0){
TRACE("Decode Error.\n");
av_free_packet(strct_streaminfo->m_pVideoPacket);
goto END;
}
if (iVideoPic <= 0){
TRACE("iVideoPic <= 0");
av_free_packet(strct_streaminfo->m_pVideoPacket);
goto END;
}
if (sws_scale(strct_streaminfo->m_video_sws_ctx, (const uint8_t* const*)strct_streaminfo->m_pVideoFrame->data, strct_streaminfo->m_pVideoFrame->linesize, 0, /*strct_streaminfo->m_height*/iVideo_Height,
strct_streaminfo->m_pVideoFrameYUV->data, strct_streaminfo->m_pVideoFrameYUV->linesize) < 0){
TRACE("sws_scale < 0");
av_free_packet(strct_streaminfo->m_pVideoPacket);
goto END;
}
if (pThis->m_blPushStream){
//进行推流操作
if (pThis->push_stream() < 0){
TRACE("pThis->push_stream() < 0");
goto END;
}
}
if (SDL_UpdateTexture(strct_streaminfo->m_sdlTexture, NULL, strct_streaminfo->m_pVideoFrameYUV->data[0], strct_streaminfo->m_pVideoFrameYUV->linesize[0]) < 0){
TRACE("SDL_UpdateTexture < 0\n");
goto END;
}
if (SDL_RenderClear(strct_streaminfo->m_sdlRenderer) < 0){
TRACE("SDL_RenderClear<0\n");
goto END;
}
if (SDL_RenderCopy(strct_streaminfo->m_sdlRenderer, strct_streaminfo->m_sdlTexture, NULL, NULL) < 0){
TRACE("SDL_RenderCopy<0\n");
goto END;
}
SDL_RenderPresent(strct_streaminfo->m_sdlRenderer);
}
}
av_free_packet(strct_streaminfo->m_pVideoPacket);
}
}
else if (event.type == FF_BREAK_EVENT){
break;
}
}
av_write_trailer(pRtmpFmtCtx);
iRet = 1;
END:
//fclose(fp_yuv);
if (strct_streaminfo->m_video_sws_ctx){
sws_freeContext(strct_streaminfo->m_video_sws_ctx);
}
if (strct_streaminfo->m_pVideoFrameYUV){
av_frame_free(&strct_streaminfo->m_pVideoFrameYUV);
}
avformat_close_input(&pFmtCtx);
avformat_free_context(pRtmpFmtCtx);
return iRet;
}
int main(int argc, const char *argv[]) {
//input parameters
FNHOLDER(inputFilename);
FNHOLDER(playlistFilename);
baseDirName [MAX_FILENAME_LENGTH ]=0;
baseFileName[MAX_FILENAME_LENGTH ]=0;
currentOutputDirName[MAX_FILENAME_LENGTH ]=0;
baseFileExtension[MAX_FILENAME_LENGTH ]=0;
baseFileExtension[MAXT_EXT_LENGTH]=0; //either "ts", "aac" or "mp3"
int segmentLength, quiet, version,usage;
FNHOLDER(tempPlaylistName);
//these are used to determine the exact length of the current segment
double segment_start_time = 0;
unsigned int actual_segment_durations[MAX_SEGMENTS+1];
double packet_time = 0;
unsigned int output_index = 1;
AVOutputFormat *ofmt=NULL;
AVFormatContext *ic = NULL;
AVFormatContext *oc;
AVStream *in_video_st = NULL;
AVStream *in_audio_st = NULL;
AVStream *out_video_st = NULL;
AVStream *out_audio_st = NULL;
AVCodec *codec;
unsigned int num_segments = 0;
int decode_done;
int ret;
int i;
int listlen;
int listofs=1;
int persist=0;
if ( parseCommandLine(argc, argv,inputFilename, playlistFilename, baseDirName, baseFileName, baseFileExtension, &segmentLength, &listlen, &quiet, &version,&usage,&persist) != 0)
return 0;
if (usage) printUsage();
if (version) ffmpeg_version();
if (version || usage) return 0;
//fprintf(stderr, "Options parsed: inputFilename:%s playlistFilename:%s baseDirName:%s baseFileName:%s baseFileExtension:%s segmentLength:%d\n",inputFilename,playlistFilename,baseDirName,baseFileName,baseFileExtension,segmentLength );
if (listlen>0){
snprintf(tempPlaylistName, MAX_FILENAME_LENGTH, "%s/%s", baseDirName, playlistFilename);
strncpy(playlistFilename, tempPlaylistName, MAX_FILENAME_LENGTH);
snprintf(tempPlaylistName, MAX_FILENAME_LENGTH, "%s.tmp", playlistFilename);
}
//if (!quiet) av_log_set_level(AV_LOG_DEBUG);
av_register_all();
avformat_network_init(); //just to be safe with later version and be able to handle all kind of input urls
while(1) {
ret = avformat_open_input(&ic, inputFilename, NULL, NULL);
if (ret != 0) {
if (persist) {
sleep(1);
continue;
}
fprintf(stderr, "Could not open input file %s. Error %d.\n", inputFilename, ret);
exit(1);
}
if (avformat_find_stream_info(ic, NULL) < 0) {
fprintf(stderr, "Could not read stream information.\n");
if (persist){
avformat_close_input(&ic);
sleep(1);
continue;
}
exit(1);
}
oc = avformat_alloc_context();
if (!oc) {
fprintf(stderr, "Could not allocate output context.");
if (persist){
avformat_close_input(&ic);
sleep(1);
continue;
}
exit(1);
}
int in_video_index = -1;
int in_audio_index = -1;
int out_video_index = -1;
int out_audio_index = -1;
for (i = 0; i < ic->nb_streams; i++) {
switch (ic->streams[i]->codec->codec_type) {
case AVMEDIA_TYPE_VIDEO:
if (!out_video_st) {
in_video_st=ic->streams[i];
in_video_index = i;
in_video_st->discard = AVDISCARD_NONE;
out_video_st = add_output_stream(oc, in_video_st);
out_video_index=out_video_st->index;
}
break;
case AVMEDIA_TYPE_AUDIO:
if (!out_audio_st) {
in_audio_st=ic->streams[i];
in_audio_index = i;
in_audio_st->discard = AVDISCARD_NONE;
out_audio_st = add_output_stream(oc, in_audio_st);
out_audio_index=out_audio_st->index;
}
break;
default:
ic->streams[i]->discard = AVDISCARD_ALL;
break;
}
}
if (in_video_index == -1) {
fprintf(stderr, "Source stream must have video component.\n");
if (persist){
avformat_close_input(&ic);
avformat_free_context(oc);
sleep(1);
continue;
}
exit(1);
}
if (!ofmt) ofmt = av_guess_format("mpegts", NULL, NULL);
if (!ofmt) {
fprintf(stderr, "Could not find MPEG-TS muxer.\n");
exit(1);
}
oc->oformat = ofmt;
if (oc->oformat->flags & AVFMT_GLOBALHEADER) oc->flags |= CODEC_FLAG_GLOBAL_HEADER;
av_dump_format(oc, 0, baseFileName, 1);
codec = avcodec_find_decoder(in_video_st->codec->codec_id);
if (!codec) {
fprintf(stderr, "Could not find video decoder, key frames will not be honored.\n");
}
ret = avcodec_open2(in_video_st->codec, codec, NULL);
if (ret < 0) {
fprintf(stderr, "Could not open video decoder, key frames will not be honored.\n");
}
if (listlen>0){
snprintf(currentOutputFileName, MAX_FILENAME_LENGTH, "%s/%s-%u%s", baseDirName, baseFileName, output_index, baseFileExtension);
} else { //archive mode
localtime_r_ex(&start_time);
fillofn();
}
if (avio_open(&oc->pb, currentOutputFileName,AVIO_FLAG_WRITE) < 0) {
fprintf(stderr, "Could not open '%s'.\n", currentOutputFileName);
exit(1);
} else if (!quiet) fprintf(stderr, "Starting segment '%s'\n", currentOutputFileName);
int r = avformat_write_header(oc, NULL);
if (r) {
fprintf(stderr, "Could not write mpegts header to first output file.\n");
debugReturnCode(r);
exit(1);
}
int waitfirstpacket=1;
time_t first_frame_sec=time(NULL);
int iskeyframe=0;
double vid_pts2time=(double)in_video_st->time_base.num / in_video_st->time_base.den;
//double aud_pts2time=0;
//if (in_audio_st) aud_pts2time=(double)in_audio_st->time_base.num / in_audio_st->time_base.den;
double prev_packet_time=0;
do {
AVPacket packet;
decode_done = av_read_frame(ic, &packet);
if (decode_done < 0) {
break;
}
//a potential memory leak:
// if (av_dup_packet(&packet) < 0) {
// fprintf(stderr, "Could not duplicate packet.");
// av_packet_unref(&packet);
// break;
// }
//get the most recent packet time
//this time is used when the time for the final segment is printed. It may not be on the edge of
//of a keyframe!
if (packet.stream_index == in_video_index) {
packet.stream_index = out_video_index;
packet_time = (double) packet.pts * vid_pts2time;
iskeyframe=packet.flags & AV_PKT_FLAG_KEY;
if (iskeyframe && waitfirstpacket) {
waitfirstpacket=0;
prev_packet_time=packet_time;
segment_start_time=packet_time;
first_frame_sec=time(NULL);
}
} else if (packet.stream_index == in_audio_index){
packet.stream_index = out_audio_index;
iskeyframe=0;
} else {
//how this got here?!
av_packet_unref(&packet);
continue;
}
if (waitfirstpacket) {
av_packet_unref(&packet);
continue;
}
//start looking for segment splits for videos one half second before segment duration expires. This is because the
//segments are split on key frames so we cannot expect all segments to be split exactly equally.
if (iskeyframe && ((packet_time - segment_start_time) >= (segmentLength - 0.25)) && (time(NULL)!=first_frame_sec)) { //a keyframe near or past segmentLength -> SPLIT
avio_flush(oc->pb);
avio_close(oc->pb);
if (listlen>0){
actual_segment_durations[num_segments] = (unsigned int) rint(prev_packet_time - segment_start_time);
num_segments++;
if (num_segments>listlen) { //move list to exclude last:
snprintf(currentOutputFileName, MAX_FILENAME_LENGTH, "%s/%s-%u%s", baseDirName, baseFileName, listofs, baseFileExtension);
unlink (currentOutputFileName);
listofs++; num_segments--;
memmove(actual_segment_durations,actual_segment_durations+1,num_segments*sizeof(actual_segment_durations[0]));
}
write_index_file(playlistFilename, tempPlaylistName, segmentLength, num_segments,actual_segment_durations, listofs, baseFileName, baseFileExtension, (num_segments>=MAX_SEGMENTS));
if (num_segments==MAX_SEGMENTS) {
fprintf(stderr, "Reached \"hard\" max segment number %u. If this is not live stream increase segment duration. If live segmenting set max list lenth (-m ...)\n", MAX_SEGMENTS);
break;
}
output_index++;
snprintf(currentOutputFileName, MAX_FILENAME_LENGTH, "%s/%s-%u%s", baseDirName, baseFileName, output_index, baseFileExtension);
} else { //archive mode:
localtime_r_ex(&end_time);
fixofn();
}
if (avio_open(&oc->pb, currentOutputFileName, AVIO_FLAG_WRITE) < 0) {
fprintf(stderr, "Could not open '%s'\n", currentOutputFileName);
break;
} else if (!quiet) fprintf(stderr, "Starting segment '%s'\n", currentOutputFileName);
fflush(stderr);
segment_start_time = packet_time;
first_frame_sec=time(NULL);
}
if (packet.stream_index == out_video_index) prev_packet_time=packet_time;
ret = av_write_frame(oc, &packet);
if (ret < 0) {
fprintf(stderr, "Warning: Could not write frame of stream.\n");
} else if (ret > 0) {
fprintf(stderr, "End of stream requested.\n");
av_packet_unref(&packet);
break;
}
av_packet_unref(&packet);
} while (!decode_done);
if (in_video_st->codec->codec !=NULL) avcodec_close(in_video_st->codec);
if (num_segments<MAX_SEGMENTS) {
//make sure all packets are written and then close the last file.
avio_flush(oc->pb);
av_write_trailer(oc);
for (i = 0; i < oc->nb_streams; i++) {
av_freep(&oc->streams[i]->codec);
av_freep(&oc->streams[i]);
}
avio_close(oc->pb);
av_free(oc);
if (num_segments>0){
actual_segment_durations[num_segments] = (unsigned int) rint(packet_time - segment_start_time);
if (actual_segment_durations[num_segments] == 0) actual_segment_durations[num_segments] = 1;
num_segments++;
write_index_file(playlistFilename, tempPlaylistName, segmentLength, num_segments,actual_segment_durations, listofs, baseFileName, baseFileExtension, 1);
} else { //archive mode
localtime_r_ex(&end_time);
fixofn();
}
}
// struct stat st;
// stat(currentOutputFileName, &st);
// output_bytes += st.st_size;
avformat_close_input(&ic);
break;
}
return 0;
}
int cv_finance_encoder_video_input_begin(
struct Encoderinfo* encoder_handle,
const char* filename, //where you want to store
enum AVPixelFormat pixel_format, //picture pix_format
int image_width,
int image_height
// int image_stride
) {
if (pixel_format != AV_PIX_FMT_YUV420P)
{
//convert to YUV420P
}
AVOutputFormat* fmt;
AVCodec* pCodec;
// set Params
encoder_handle->in_w = image_width;
encoder_handle->in_h = image_height;
encoder_handle->framecnt = 0;
encoder_handle->frameindex = 0;
av_register_all();
encoder_handle->pFormatCtx = avformat_alloc_context();
//Guess Format
fmt = av_guess_format(NULL, filename, NULL);
encoder_handle->pFormatCtx->oformat = fmt;
//Open output URL
if (avio_open(&(encoder_handle->pFormatCtx->pb), filename, AVIO_FLAG_READ_WRITE) < 0) {
printf("Failed to open output file! \n");
return -1;
}
encoder_handle->video_st = avformat_new_stream(encoder_handle->pFormatCtx, 0);
encoder_handle->video_st->time_base.num = 1;
encoder_handle->video_st->time_base.den = 10;
if (encoder_handle->video_st == NULL) {
return -1;
}
encoder_handle->pCodecCtx = encoder_handle->video_st->codec;
//Must Param
encoder_handle->pCodecCtx->codec_id = fmt->video_codec;
encoder_handle->pCodecCtx->codec_type = AVMEDIA_TYPE_VIDEO;
encoder_handle->pCodecCtx->pix_fmt = AV_PIX_FMT_YUV420P;
encoder_handle->pCodecCtx->width = encoder_handle->in_w;
encoder_handle->pCodecCtx->height = encoder_handle->in_h;
encoder_handle->pCodecCtx->time_base.num = 1;
encoder_handle->pCodecCtx->time_base.den = 10;
encoder_handle->pCodecCtx->bit_rate = 1600;
encoder_handle->pCodecCtx->gop_size = 250;
encoder_handle->pCodecCtx->qmin = 10;
encoder_handle->pCodecCtx->qmax = 51;
//Optional Param
encoder_handle->pCodecCtx->max_b_frames = 3;
// printf("147%d\n", AV_PIX_FMT_YUV420P);
//Set Option;local var
AVDictionary *param = 0;
//H264
if (encoder_handle->pCodecCtx->codec_id == AV_CODEC_ID_H264) {
av_dict_set(¶m, "preset", "slow", 0);
av_dict_set(¶m, "tune", "zerolatency", 0);
// printf("153\n");
}
//av_dump_format(encoder_handle->pFormatCtx, 0, filename, 1);
//open codec
pCodec = avcodec_find_encoder(encoder_handle->pCodecCtx->codec_id);
if (!pCodec) {
printf("Can not find encoder! \n");
return -1;
}
if (avcodec_open2(encoder_handle->pCodecCtx, pCodec, ¶m) < 0) {
printf("Failed to open encoder! \n");
return -1;
}
int ret;
//initial frame
int picture_size;
encoder_handle->pFrame = av_frame_alloc();
encoder_handle->pFrame->format = encoder_handle->pCodecCtx->pix_fmt;
encoder_handle->pFrame->width = encoder_handle->pCodecCtx->width;
encoder_handle->pFrame->height = encoder_handle->pCodecCtx->height;
picture_size=av_image_get_buffer_size(encoder_handle->pCodecCtx->pix_fmt, encoder_handle->pCodecCtx->width, encoder_handle->pCodecCtx->height,1);
printf("%d:%d\n", __LINE__,picture_size);
ret = av_image_alloc(encoder_handle->pFrame->data, encoder_handle->pFrame->linesize, encoder_handle->pCodecCtx->width, encoder_handle->pCodecCtx->height,
encoder_handle->pCodecCtx->pix_fmt,1);
// picture_size = avpicture_get_size(encoder_handle->pCodecCtx->pix_fmt, encoder_handle->pCodecCtx->width, encoder_handle->pCodecCtx->height);
// uint8_t* picture_buf = (uint8_t *)av_malloc(picture_size);
// avpicture_fill((AVPicture *)encoder_handle->pFrame, picture_buf, encoder_handle->pCodecCtx->pix_fmt, encoder_handle->pCodecCtx->width, encoder_handle->pCodecCtx->height);
//Write File Header
ret= avformat_write_header(encoder_handle->pFormatCtx, NULL);
if (ret < 0) {
printf("Error occurred when opening output file!\n");
return 1;
}
av_new_packet(&encoder_handle->pkt, picture_size);
encoder_handle->y_size = encoder_handle->pCodecCtx->width * encoder_handle->pCodecCtx->height;
return 0;
}
int ff_example(const char *filename, const char *format)
{
AVOutputFormat *fmt;
AVFormatContext *oc;
AVStream *video_st;
double video_pts;
int i;
fmt = av_guess_format(format, NULL, NULL);
if (!fmt) {
fprintf(stderr, "Could not find suitable output format\n");
exit(1);
}
fmt->video_codec = CODEC_ID_MJPEG;
/* allocate the output media context */
oc = avformat_alloc_context();
if (!oc) {
fprintf(stderr, "Memory error\n");
exit(1);
}
oc->oformat = fmt;
snprintf(oc->filename, sizeof(oc->filename), "%s", filename);
video_st = NULL;
if (fmt->video_codec != CODEC_ID_NONE)
video_st = add_video_stream(oc, fmt->video_codec);
av_dump_format(oc, 0, filename, 1);
/* now that all the parameters are set, we can open the audio and
video codecs and allocate the necessary encode buffers */
if (video_st)
open_video(oc, video_st);
if (avio_open(&oc->pb, filename, URL_WRONLY) < 0) {
fprintf(stderr, "Could not open '%s'\n", filename);
exit(1);
}
/* write the stream header, if any */
avformat_write_header(oc, NULL);
for(;;) {
video_pts = (double)video_st->pts.val * video_st->time_base.num / video_st->time_base.den;
printf("pts: %f\n", video_pts);
if (frame_count > STREAM_NB_FRAMES)
break;
/* write interleaved audio and video frames */
if (write_video_frame(oc, video_st) < 0)
break;
}
printf("%d frames written\n", frame_count);
av_write_trailer(oc);
/* close each codec */
if (video_st)
close_video(oc, video_st);
/* free the streams */
for(i = 0; i < oc->nb_streams; i++) {
av_freep(&oc->streams[i]->codec);
av_freep(&oc->streams[i]);
}
avio_close(oc->pb);
/* free the stream */
av_free(oc);
return 0;
}
bool ffmpeg_save_flv::init_flv(std::string session_name, int width, int height) {
// find the flv video encoder (for output)
set_outer_stream_state(VSTR_OST_STATE_PENDING, "");
#if (LIBAVCODEC_VERSION_MAJOR < 54)
flv_codec = avcodec_find_encoder(CODEC_ID_FLV1);
#else
flv_codec = avcodec_find_encoder(AV_CODEC_ID_FLV1);
#endif
if (!flv_codec) {
set_outer_stream_state(VSTR_OST_STATE_ERROR, "FLV1 Codec not found!", VSTR_OST_ERR_CODEC_NOT_FOUND);
LOG_ERR("Save Session (%s): %s \n", session_name.c_str(), state_message.c_str());
return false;
}
// allocate flv codec context (for output)
flv_codec_context = avcodec_alloc_context3(flv_codec);
if (!flv_codec_context) {
set_outer_stream_state(VSTR_OST_STATE_ERROR, "Could not allocate video FLV1 codec context!", VSTR_OST_ERR_OPEN_CODEC);
LOG_ERR("Save Session (%s): %s \n", session_name.c_str(), state_message.c_str());
return false;
}
flv_format_context = avformat_alloc_context();
flv_fmt = av_guess_format("flv", output_filename.c_str(), NULL);
flv_format_context->oformat = flv_fmt;
flv_stream = avformat_new_stream(flv_format_context, flv_codec);
flv_stream->codec = flv_codec_context;
flv_codec_context->pix_fmt = pEncodedFormat;
flv_codec_context->width = width;
flv_codec_context->height = height;
flv_codec_context->qmin=2;
flv_codec_context->qmax=32;
//flv_codec_context->time_base.den = 30;
//flv_codec_context->time_base.num = 1;
flv_stream->time_base.den = 1000;
flv_stream->time_base.num = 1;
// add headers and flags for saving
flv_codec_context->flags |= CODEC_FLAG_GLOBAL_HEADER;
av_dump_format(flv_format_context, 0, output_filename.c_str(), 1);
int ret = avio_open(&flv_format_context->pb, output_filename.c_str(), AVIO_FLAG_WRITE);
if (ret < 0) {
set_outer_stream_state(VSTR_OST_STATE_ERROR, "Could not open output.", VSTR_OST_ERR_SEND_DATA);
LOG_ERR("Save Session (%s): %s \n", session_name.c_str(), state_message.c_str());
return false;
}
ret = avformat_write_header(flv_format_context, NULL);
if (ret < 0) {
set_outer_stream_state(VSTR_OST_STATE_ERROR, "Could not open output header.", VSTR_OST_ERR_SEND_DATA);
LOG_ERR("Save Session (%s): %s \n", session_name.c_str(), state_message.c_str());
return false;
}
return true;
}
bool FFmpegEncoderOpen(struct FFmpegEncoder* encoder, const char* outfile) {
AVCodec* acodec = avcodec_find_encoder_by_name(encoder->audioCodec);
AVCodec* vcodec = avcodec_find_encoder_by_name(encoder->videoCodec);
if ((encoder->audioCodec && !acodec) || !vcodec || !FFmpegEncoderVerifyContainer(encoder)) {
return false;
}
encoder->currentAudioSample = 0;
encoder->currentAudioFrame = 0;
encoder->currentVideoFrame = 0;
encoder->nextAudioPts = 0;
AVOutputFormat* oformat = av_guess_format(encoder->containerFormat, 0, 0);
#ifndef USE_LIBAV
avformat_alloc_output_context2(&encoder->context, oformat, 0, outfile);
#else
encoder->context = avformat_alloc_context();
strncpy(encoder->context->filename, outfile, sizeof(encoder->context->filename) - 1);
encoder->context->filename[sizeof(encoder->context->filename) - 1] = '\0';
encoder->context->oformat = oformat;
#endif
if (acodec) {
#ifdef FFMPEG_USE_CODECPAR
encoder->audioStream = avformat_new_stream(encoder->context, NULL);
encoder->audio = avcodec_alloc_context3(acodec);
#else
encoder->audioStream = avformat_new_stream(encoder->context, acodec);
encoder->audio = encoder->audioStream->codec;
#endif
encoder->audio->bit_rate = encoder->audioBitrate;
encoder->audio->channels = 2;
encoder->audio->channel_layout = AV_CH_LAYOUT_STEREO;
encoder->audio->sample_rate = encoder->sampleRate;
encoder->audio->sample_fmt = encoder->sampleFormat;
AVDictionary* opts = 0;
av_dict_set(&opts, "strict", "-2", 0);
if (encoder->context->oformat->flags & AVFMT_GLOBALHEADER) {
#ifdef AV_CODEC_FLAG_GLOBAL_HEADER
encoder->audio->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
#else
encoder->audio->flags |= CODEC_FLAG_GLOBAL_HEADER;
#endif
}
avcodec_open2(encoder->audio, acodec, &opts);
av_dict_free(&opts);
#if LIBAVCODEC_VERSION_MAJOR >= 55
encoder->audioFrame = av_frame_alloc();
#else
encoder->audioFrame = avcodec_alloc_frame();
#endif
if (!encoder->audio->frame_size) {
encoder->audio->frame_size = 1;
}
encoder->audioFrame->nb_samples = encoder->audio->frame_size;
encoder->audioFrame->format = encoder->audio->sample_fmt;
encoder->audioFrame->pts = 0;
#ifdef USE_LIBAVRESAMPLE
encoder->resampleContext = avresample_alloc_context();
av_opt_set_int(encoder->resampleContext, "in_channel_layout", AV_CH_LAYOUT_STEREO, 0);
av_opt_set_int(encoder->resampleContext, "out_channel_layout", AV_CH_LAYOUT_STEREO, 0);
av_opt_set_int(encoder->resampleContext, "in_sample_rate", PREFERRED_SAMPLE_RATE, 0);
av_opt_set_int(encoder->resampleContext, "out_sample_rate", encoder->sampleRate, 0);
av_opt_set_int(encoder->resampleContext, "in_sample_fmt", AV_SAMPLE_FMT_S16, 0);
av_opt_set_int(encoder->resampleContext, "out_sample_fmt", encoder->sampleFormat, 0);
avresample_open(encoder->resampleContext);
#else
encoder->resampleContext = swr_alloc_set_opts(NULL, AV_CH_LAYOUT_STEREO, encoder->sampleFormat, encoder->sampleRate,
AV_CH_LAYOUT_STEREO, AV_SAMPLE_FMT_S16, PREFERRED_SAMPLE_RATE, 0, NULL);
swr_init(encoder->resampleContext);
#endif
encoder->audioBufferSize = (encoder->audioFrame->nb_samples * PREFERRED_SAMPLE_RATE / encoder->sampleRate) * 4;
encoder->audioBuffer = av_malloc(encoder->audioBufferSize);
encoder->postaudioBufferSize = av_samples_get_buffer_size(0, encoder->audio->channels, encoder->audio->frame_size, encoder->audio->sample_fmt, 0);
encoder->postaudioBuffer = av_malloc(encoder->postaudioBufferSize);
avcodec_fill_audio_frame(encoder->audioFrame, encoder->audio->channels, encoder->audio->sample_fmt, (const uint8_t*) encoder->postaudioBuffer, encoder->postaudioBufferSize, 0);
if (encoder->audio->codec->id == AV_CODEC_ID_AAC &&
(strcasecmp(encoder->containerFormat, "mp4") ||
strcasecmp(encoder->containerFormat, "m4v") ||
strcasecmp(encoder->containerFormat, "mov"))) {
// MP4 container doesn't support the raw ADTS AAC format that the encoder spits out
#ifdef FFMPEG_USE_NEW_BSF
av_bsf_alloc(av_bsf_get_by_name("aac_adtstoasc"), &encoder->absf);
avcodec_parameters_from_context(encoder->absf->par_in, encoder->audio);
av_bsf_init(encoder->absf);
#else
encoder->absf = av_bitstream_filter_init("aac_adtstoasc");
#endif
}
#ifdef FFMPEG_USE_CODECPAR
avcodec_parameters_from_context(encoder->audioStream->codecpar, encoder->audio);
#endif
}
#ifdef FFMPEG_USE_CODECPAR
encoder->videoStream = avformat_new_stream(encoder->context, NULL);
encoder->video = avcodec_alloc_context3(vcodec);
#else
encoder->videoStream = avformat_new_stream(encoder->context, vcodec);
encoder->video = encoder->videoStream->codec;
#endif
encoder->video->bit_rate = encoder->videoBitrate;
encoder->video->width = encoder->width;
encoder->video->height = encoder->height;
encoder->video->time_base = (AVRational) { VIDEO_TOTAL_LENGTH, GBA_ARM7TDMI_FREQUENCY };
encoder->video->pix_fmt = encoder->pixFormat;
encoder->video->gop_size = 60;
encoder->video->max_b_frames = 3;
if (encoder->context->oformat->flags & AVFMT_GLOBALHEADER) {
#ifdef AV_CODEC_FLAG_GLOBAL_HEADER
encoder->video->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
#else
encoder->video->flags |= CODEC_FLAG_GLOBAL_HEADER;
#endif
}
if (encoder->video->codec->id == AV_CODEC_ID_H264 &&
(strcasecmp(encoder->containerFormat, "mp4") ||
strcasecmp(encoder->containerFormat, "m4v") ||
strcasecmp(encoder->containerFormat, "mov"))) {
// QuickTime and a few other things require YUV420
encoder->video->pix_fmt = AV_PIX_FMT_YUV420P;
}
if (strcmp(vcodec->name, "libx264") == 0) {
// Try to adaptively figure out when you can use a slower encoder
if (encoder->width * encoder->height > 1000000) {
av_opt_set(encoder->video->priv_data, "preset", "superfast", 0);
} else if (encoder->width * encoder->height > 500000) {
av_opt_set(encoder->video->priv_data, "preset", "veryfast", 0);
} else {
av_opt_set(encoder->video->priv_data, "preset", "faster", 0);
}
if (encoder->videoBitrate == 0) {
av_opt_set(encoder->video->priv_data, "crf", "0", 0);
encoder->video->pix_fmt = AV_PIX_FMT_YUV444P;
}
}
avcodec_open2(encoder->video, vcodec, 0);
#if LIBAVCODEC_VERSION_MAJOR >= 55
encoder->videoFrame = av_frame_alloc();
#else
encoder->videoFrame = avcodec_alloc_frame();
#endif
encoder->videoFrame->format = encoder->video->pix_fmt;
encoder->videoFrame->width = encoder->video->width;
encoder->videoFrame->height = encoder->video->height;
encoder->videoFrame->pts = 0;
_ffmpegSetVideoDimensions(&encoder->d, encoder->iwidth, encoder->iheight);
av_image_alloc(encoder->videoFrame->data, encoder->videoFrame->linesize, encoder->video->width, encoder->video->height, encoder->video->pix_fmt, 32);
#ifdef FFMPEG_USE_CODECPAR
avcodec_parameters_from_context(encoder->videoStream->codecpar, encoder->video);
#endif
if (avio_open(&encoder->context->pb, outfile, AVIO_FLAG_WRITE) < 0) {
return false;
}
return avformat_write_header(encoder->context, 0) >= 0;
}
int save_snapshot (const char * filename, const AVCodecContext * picc, const AVFrame * pif) {
int ok = 0;
OutputContext * output_context = output_context_new(filename, pif);
if (!output_context) {
ok = -1;
goto failed;
}
// write file header
ok = avformat_write_header(output_context->format_context, NULL);
if (ok != 0) {
ok = 1;
goto failed;
}
// prepare pixel convertion
AVCodecContext * pcc = output_context->codec_context;
struct SwsContext * psc = sws_getCachedContext(NULL, picc->width, picc->height, picc->pix_fmt, pcc->width, pcc->height, pcc->pix_fmt, SWS_BILINEAR, NULL, NULL, NULL);
if (!psc) {
ok = 1;
goto failed;
}
// prepare converted picture
AVFrame * pf = av_frame_alloc();
if (!pf) {
ok = 1;
goto close_sws;
}
pf->width = pcc->width;
pf->height = pcc->height;
pf->format = pcc->pix_fmt;
ok = av_image_alloc(pf->data, pf->linesize, pcc->width, pcc->height, pcc->pix_fmt, 1);
if (ok < 0) {
ok = AVUNERROR(ok);
goto close_frame;
}
// convert pixel format
ok = sws_scale(psc, (const uint8_t * const *)pif->data, pif->linesize, 0, picc->height, pf->data, pf->linesize);
if (ok <= 0) {
ok = 1;
goto close_picture;
}
// encode frame
AVPacket pkt;
av_init_packet(&pkt);
pkt.data = NULL;
pkt.size = 0;
ok = avcodec_send_frame(pcc, pf);
if (ok != 0) {
ok = AVUNERROR(ok);
goto close_packet;
}
ok = avcodec_receive_packet(pcc, &pkt);
if (ok != 0) {
ok = AVUNERROR(ok);
goto close_packet;
}
// NOTE does not matter in image
pkt.pts = 0;
pkt.dts = 0;
// write encoded frame
ok = av_interleaved_write_frame(output_context->format_context, &pkt);
if (ok != 0) {
ok = 1;
goto close_file;
}
ok = 0;
close_file:
av_write_trailer(output_context->format_context);
close_packet:
av_packet_unref(&pkt);
close_picture:
av_freep(&pf->data[0]);
close_frame:
av_frame_free(&pf);
close_sws:
sws_freeContext(psc);
failed:
output_context_delete(&output_context);
return ok;
}
static int open_slave(AVFormatContext *avf, char *slave, TeeSlave *tee_slave)
{
int i, ret;
AVDictionary *options = NULL;
AVDictionaryEntry *entry;
char *filename;
char *format = NULL, *select = NULL;
AVFormatContext *avf2 = NULL;
AVStream *st, *st2;
int stream_count;
if ((ret = parse_slave_options(avf, slave, &options, &filename)) < 0)
return ret;
#define STEAL_OPTION(option, field) do { \
if ((entry = av_dict_get(options, option, NULL, 0))) { \
field = entry->value; \
entry->value = NULL; /* prevent it from being freed */ \
av_dict_set(&options, option, NULL, 0); \
} \
} while (0)
STEAL_OPTION("f", format);
STEAL_OPTION("select", select);
ret = avformat_alloc_output_context2(&avf2, NULL, format, filename);
if (ret < 0)
goto end;
av_dict_copy(&avf2->metadata, avf->metadata, 0);
tee_slave->stream_map = av_calloc(avf->nb_streams, sizeof(*tee_slave->stream_map));
if (!tee_slave->stream_map) {
ret = AVERROR(ENOMEM);
goto end;
}
stream_count = 0;
for (i = 0; i < avf->nb_streams; i++) {
st = avf->streams[i];
if (select) {
ret = avformat_match_stream_specifier(avf, avf->streams[i], select);
if (ret < 0) {
av_log(avf, AV_LOG_ERROR,
"Invalid stream specifier '%s' for output '%s'\n",
select, slave);
goto end;
}
if (ret == 0) { /* no match */
tee_slave->stream_map[i] = -1;
continue;
}
}
tee_slave->stream_map[i] = stream_count++;
if (!(st2 = avformat_new_stream(avf2, NULL))) {
ret = AVERROR(ENOMEM);
goto end;
}
st2->id = st->id;
st2->r_frame_rate = st->r_frame_rate;
st2->time_base = st->time_base;
st2->start_time = st->start_time;
st2->duration = st->duration;
st2->nb_frames = st->nb_frames;
st2->disposition = st->disposition;
st2->sample_aspect_ratio = st->sample_aspect_ratio;
st2->avg_frame_rate = st->avg_frame_rate;
av_dict_copy(&st2->metadata, st->metadata, 0);
if ((ret = avcodec_copy_context(st2->codec, st->codec)) < 0)
goto end;
}
if (!(avf2->oformat->flags & AVFMT_NOFILE)) {
if ((ret = avio_open(&avf2->pb, filename, AVIO_FLAG_WRITE)) < 0) {
av_log(avf, AV_LOG_ERROR, "Slave '%s': error opening: %s\n",
slave, av_err2str(ret));
goto end;
}
}
if ((ret = avformat_write_header(avf2, &options)) < 0) {
av_log(avf, AV_LOG_ERROR, "Slave '%s': error writing header: %s\n",
slave, av_err2str(ret));
goto end;
}
tee_slave->avf = avf2;
tee_slave->bsfs = av_calloc(avf2->nb_streams, sizeof(TeeSlave));
if (!tee_slave->bsfs) {
ret = AVERROR(ENOMEM);
goto end;
}
entry = NULL;
while (entry = av_dict_get(options, "bsfs", NULL, AV_DICT_IGNORE_SUFFIX)) {
const char *spec = entry->key + strlen("bsfs");
if (*spec) {
if (strspn(spec, slave_bsfs_spec_sep) != 1) {
av_log(avf, AV_LOG_ERROR,
"Specifier separator in '%s' is '%c', but only characters '%s' "
"are allowed\n", entry->key, *spec, slave_bsfs_spec_sep);
return AVERROR(EINVAL);
}
spec++; /* consume separator */
}
for (i = 0; i < avf2->nb_streams; i++) {
ret = avformat_match_stream_specifier(avf2, avf2->streams[i], spec);
if (ret < 0) {
av_log(avf, AV_LOG_ERROR,
"Invalid stream specifier '%s' in bsfs option '%s' for slave "
"output '%s'\n", spec, entry->key, filename);
goto end;
}
if (ret > 0) {
av_log(avf, AV_LOG_DEBUG, "spec:%s bsfs:%s matches stream %d of slave "
"output '%s'\n", spec, entry->value, i, filename);
if (tee_slave->bsfs[i]) {
av_log(avf, AV_LOG_WARNING,
"Duplicate bsfs specification associated to stream %d of slave "
"output '%s', filters will be ignored\n", i, filename);
continue;
}
ret = parse_bsfs(avf, entry->value, &tee_slave->bsfs[i]);
if (ret < 0) {
av_log(avf, AV_LOG_ERROR,
"Error parsing bitstream filter sequence '%s' associated to "
"stream %d of slave output '%s'\n", entry->value, i, filename);
goto end;
}
}
}
av_dict_set(&options, entry->key, NULL, 0);
}
if (options) {
entry = NULL;
while ((entry = av_dict_get(options, "", entry, AV_DICT_IGNORE_SUFFIX)))
av_log(avf2, AV_LOG_ERROR, "Unknown option '%s'\n", entry->key);
ret = AVERROR_OPTION_NOT_FOUND;
goto end;
}
end:
av_free(format);
av_free(select);
av_dict_free(&options);
return ret;
}
/**
* Saves image data to a file in pgm or pbm format.
*
* @param filename file name to save image to
* @param image image to save
* @param type filetype of the image to save
* @return true on success, false on failure
*/
void saveImage(char *filename, AVFrame *input, int outputPixFmt) {
AVOutputFormat *fmt = NULL;
enum AVCodecID output_codec = -1;
AVCodec *codec;
AVFormatContext *out_ctx;
AVCodecContext *codec_ctx;
AVStream *video_st;
AVFrame *output = input;
int ret;
char errbuff[1024];
fmt = av_guess_format("image2", NULL, NULL);
if ( !fmt ) {
errOutput("could not find suitable output format.");
}
out_ctx = avformat_alloc_context();
if ( !out_ctx ) {
errOutput("unable to allocate output context.");
}
out_ctx->oformat = fmt;
snprintf(out_ctx->filename, sizeof(out_ctx->filename), "%s", filename);
switch (outputPixFmt) {
case AV_PIX_FMT_RGB24:
output_codec = AV_CODEC_ID_PPM;
break;
case AV_PIX_FMT_Y400A:
case AV_PIX_FMT_GRAY8:
outputPixFmt = AV_PIX_FMT_GRAY8;
output_codec = AV_CODEC_ID_PGM;
break;
case AV_PIX_FMT_MONOBLACK:
case AV_PIX_FMT_MONOWHITE:
outputPixFmt = AV_PIX_FMT_MONOWHITE;
output_codec = AV_CODEC_ID_PBM;
break;
}
if ( input->format != outputPixFmt ) {
initImage(&output, input->width, input->height,
outputPixFmt, -1);
copyImageArea(0, 0, input->width, input->height,
input, 0, 0, output);
}
codec = avcodec_find_encoder(output_codec);
if ( !codec ) {
errOutput("output codec not found");
}
video_st = avformat_new_stream(out_ctx, codec);
if ( !video_st ) {
errOutput("could not alloc output stream");
}
codec_ctx = video_st->codec;
codec_ctx->width = output->width;
codec_ctx->height = output->height;
codec_ctx->pix_fmt = output->format;
video_st->time_base.den = codec_ctx->time_base.den = 1;
video_st->time_base.num = codec_ctx->time_base.num = 1;
ret = avcodec_open2(codec_ctx, codec, NULL);
if (ret < 0) {
av_strerror(ret, errbuff, sizeof(errbuff));
errOutput("unable to open codec: %s", errbuff);
}
if (verbose >= VERBOSE_MORE)
av_dump_format(out_ctx, 0, filename, 1);
if (avio_open(&out_ctx->pb, filename, AVIO_FLAG_WRITE) < 0) {
errOutput("could not open '%s'", filename);
}
avformat_write_header(out_ctx, NULL);
AVPacket pkt = { 0 };
int got_packet;
av_init_packet(&pkt);
/* encode the image */
ret = avcodec_encode_video2(video_st->codec, &pkt, output, &got_packet);
if (ret < 0) {
av_strerror(ret, errbuff, sizeof(errbuff));
errOutput("unable to write file %s: %s", filename, errbuff);
}
av_write_frame(out_ctx, &pkt);
av_write_trailer(out_ctx);
avcodec_close(codec_ctx);
av_free(codec_ctx);
av_free(video_st);
avio_close(out_ctx->pb);
av_free(out_ctx);
if ( output != input )
av_frame_free(&output);
}
int ff_rtp_chain_mux_open(AVFormatContext **out, AVFormatContext *s,
AVStream *st, URLContext *handle, int packet_size,
int idx)
{
AVFormatContext *rtpctx = NULL;
int ret;
AVOutputFormat *rtp_format = av_guess_format("rtp", NULL, NULL);
uint8_t *rtpflags;
AVDictionary *opts = NULL;
if (!rtp_format) {
ret = AVERROR(ENOSYS);
goto fail;
}
/* Allocate an AVFormatContext for each output stream */
rtpctx = avformat_alloc_context();
if (!rtpctx) {
ret = AVERROR(ENOMEM);
goto fail;
}
rtpctx->oformat = rtp_format;
if (!avformat_new_stream(rtpctx, NULL)) {
ret = AVERROR(ENOMEM);
goto fail;
}
/* Pass the interrupt callback on */
rtpctx->interrupt_callback = s->interrupt_callback;
/* Copy the max delay setting; the rtp muxer reads this. */
rtpctx->max_delay = s->max_delay;
/* Copy other stream parameters. */
rtpctx->streams[0]->sample_aspect_ratio = st->sample_aspect_ratio;
rtpctx->flags |= s->flags & AVFMT_FLAG_BITEXACT;
/* Get the payload type from the codec */
if (st->id < RTP_PT_PRIVATE)
rtpctx->streams[0]->id =
ff_rtp_get_payload_type(s, st->codecpar, idx);
else
rtpctx->streams[0]->id = st->id;
if (av_opt_get(s, "rtpflags", AV_OPT_SEARCH_CHILDREN, &rtpflags) >= 0)
av_dict_set(&opts, "rtpflags", rtpflags, AV_DICT_DONT_STRDUP_VAL);
/* Set the synchronized start time. */
rtpctx->start_time_realtime = s->start_time_realtime;
avcodec_parameters_copy(rtpctx->streams[0]->codecpar, st->codecpar);
rtpctx->streams[0]->time_base = st->time_base;
if (handle) {
ret = ffio_fdopen(&rtpctx->pb, handle);
if (ret < 0)
ffurl_close(handle);
} else
ret = ffio_open_dyn_packet_buf(&rtpctx->pb, packet_size);
if (!ret)
ret = avformat_write_header(rtpctx, &opts);
av_dict_free(&opts);
if (ret) {
if (handle && rtpctx->pb) {
avio_closep(&rtpctx->pb);
} else if (rtpctx->pb) {
ffio_free_dyn_buf(&rtpctx->pb);
}
avformat_free_context(rtpctx);
return ret;
}
*out = rtpctx;
return 0;
fail:
avformat_free_context(rtpctx);
if (handle)
ffurl_close(handle);
return ret;
}
bool VideoEncoder::init(const Desc& desc)
{
// Register the codecs
av_register_all();
// create the output context
avformat_alloc_output_context2(&mpOutputContext, nullptr, nullptr, mFilename.c_str());
if(mpOutputContext == nullptr)
{
// The sample tries again, while explicitly requesting mpeg format. I chose not to do it, since it might lead to a container with a wrong extension
return error(mFilename, "File output format not recognized. Make sure you use a known file extension (avi/mpeg/mp4)");
}
// Get the output format of the container
AVOutputFormat* pOutputFormat = mpOutputContext->oformat;
assert((pOutputFormat->flags & AVFMT_NOFILE) == 0); // Problem. We want a file.
// create the video codec
AVCodec* pVideoCodec;
mpOutputStream = createVideoStream(mpOutputContext, desc.fps, getCodecID(desc.codec), mFilename, pVideoCodec);
if(mpOutputStream == nullptr)
{
return false;
}
mpCodecContext = createCodecContext(mpOutputContext, desc.width, desc.height, desc.fps, desc.bitrateMbps, desc.gopSize, getCodecID(desc.codec), pVideoCodec);
if(mpCodecContext == nullptr)
{
return false;
}
// Open the video stream
if(openVideo(pVideoCodec, mpCodecContext, mpFrame, mFilename) == false)
{
return false;
}
// copy the stream parameters to the muxer
if(avcodec_parameters_from_context(mpOutputStream->codecpar, mpCodecContext) < 0)
{
return error(desc.filename, "Could not copy the stream parameters\n");
}
av_dump_format(mpOutputContext, 0, mFilename.c_str(), 1);
// Open the output file
assert((pOutputFormat->flags & AVFMT_NOFILE) == 0); // No output file required. Not sure if/when this happens.
if(avio_open(&mpOutputContext->pb, mFilename.c_str(), AVIO_FLAG_WRITE) < 0)
{
return error(mFilename, "Can't open output file.");
}
// Write the stream header
if(avformat_write_header(mpOutputContext, nullptr) < 0)
{
return error(mFilename, "Can't write file header.");
}
mFormat = desc.format;
mRowPitch = getFormatBytesPerBlock(desc.format) * desc.width;
if(desc.flipY)
{
mpFlippedImage = new uint8_t[desc.height * mRowPitch];
}
mpSwsContext = sws_getContext(desc.width, desc.height, getPictureFormatFromFalcorFormat(desc.format), desc.width, desc.height, mpCodecContext->pix_fmt, SWS_POINT, nullptr, nullptr, nullptr);
if(mpSwsContext == nullptr)
{
return error(mFilename, "Failed to allocate SWScale context");
}
return true;
}