uint32_t av_q2intfloat(AVRational q) {
int64_t n;
int shift;
int sign = 0;
if (q.den < 0) {
q.den *= -1;
q.num *= -1;
}
if (q.num < 0) {
q.num *= -1;
sign = 1;
}
if (!q.num && !q.den) return 0xFFC00000;
if (!q.num) return 0;
if (!q.den) return 0x7F800000 | (q.num & 0x80000000);
shift = 23 + av_log2(q.den) - av_log2(q.num);
if (shift >= 0) n = av_rescale(q.num, 1LL<<shift, q.den);
else n = av_rescale(q.num, 1, ((int64_t)q.den) << -shift);
shift -= n >= (1<<24);
shift += n < (1<<23);
if (shift >= 0) n = av_rescale(q.num, 1LL<<shift, q.den);
else n = av_rescale(q.num, 1, ((int64_t)q.den) << -shift);
av_assert1(n < (1<<24));
av_assert1(n >= (1<<23));
return sign<<31 | (150-shift)<<23 | (n - (1<<23));
}
int OutputProcessor::packageAudio(unsigned char* inBuff, int inBuffLen,
unsigned char* outBuff, long int pts) {
if (audioPackager == 0) {
ELOG_DEBUG("No se ha inicializado el codec de output audio RTP");
return -1;
}
timeval time;
gettimeofday(&time, NULL);
long millis = (time.tv_sec * 1000) + (time.tv_usec / 1000);
RtpHeader head;
head.setSeqNumber(audioSeqnum_++);
// head.setTimestamp(millis*8);
head.setMarker(1);
if (pts==0){
// head.setTimestamp(audioSeqnum_*160);
head.setTimestamp(av_rescale(audioSeqnum_, (mediaInfo.audioCodec.sampleRate/1000), 1));
}else{
// head.setTimestamp(pts*8);
head.setTimestamp(av_rescale(pts, mediaInfo.audioCodec.sampleRate,1000));
}
head.setSSRC(44444);
head.setPayloadType(mediaInfo.rtpAudioInfo.PT);
// memcpy (rtpAudioBuffer_, &head, head.getHeaderLength());
// memcpy(&rtpAudioBuffer_[head.getHeaderLength()], inBuff, inBuffLen);
memcpy (outBuff, &head, head.getHeaderLength());
memcpy(&outBuff[head.getHeaderLength()], inBuff, inBuffLen);
// sink_->sendData(rtpBuffer_, l);
// rtpReceiver_->receiveRtpData(rtpBuffer_, (inBuffLen + RTP_HEADER_LEN));
return (inBuffLen+head.getHeaderLength());
}
static inline int dc1394_read_common(AVFormatContext *c, AVFormatParameters *ap,
struct dc1394_frame_format **select_fmt, struct dc1394_frame_rate **select_fps)
{
dc1394_data* dc1394 = c->priv_data;
AVStream* vst;
struct dc1394_frame_format *fmt;
struct dc1394_frame_rate *fps;
enum PixelFormat pix_fmt = ap->pix_fmt == PIX_FMT_NONE ? PIX_FMT_UYVY422 : ap->pix_fmt; /* defaults */
int width = !ap->width ? 320 : ap->width;
int height = !ap->height ? 240 : ap->height;
int frame_rate = !ap->time_base.num ? 30000 : av_rescale(1000, ap->time_base.den, ap->time_base.num);
for (fmt = dc1394_frame_formats; fmt->width; fmt++)
if (fmt->pix_fmt == pix_fmt && fmt->width == width && fmt->height == height)
break;
for (fps = dc1394_frame_rates; fps->frame_rate; fps++)
if (fps->frame_rate == frame_rate)
break;
if (!fps->frame_rate || !fmt->width) {
av_log(c, AV_LOG_ERROR, "Can't find matching camera format for %s, %dx%d@%d:1000fps\n", avcodec_get_pix_fmt_name(pix_fmt),
width, height, frame_rate);
goto out;
}
/* create a video stream */
vst = av_new_stream(c, 0);
if (!vst)
goto out;
av_set_pts_info(vst, 64, 1, 1000);
vst->codec->codec_type = CODEC_TYPE_VIDEO;
vst->codec->codec_id = CODEC_ID_RAWVIDEO;
vst->codec->time_base.den = fps->frame_rate;
vst->codec->time_base.num = 1000;
vst->codec->width = fmt->width;
vst->codec->height = fmt->height;
vst->codec->pix_fmt = fmt->pix_fmt;
/* packet init */
av_init_packet(&dc1394->packet);
dc1394->packet.size = avpicture_get_size(fmt->pix_fmt, fmt->width, fmt->height);
dc1394->packet.stream_index = vst->index;
dc1394->packet.flags |= PKT_FLAG_KEY;
dc1394->current_frame = 0;
dc1394->fps = fps->frame_rate;
vst->codec->bit_rate = av_rescale(dc1394->packet.size * 8, fps->frame_rate, 1000);
*select_fps = fps;
*select_fmt = fmt;
return 0;
out:
return -1;
}
void ExternalInput::receiveLoop() {
av_read_play(context_); // play RTSP
int gotDecodedFrame = 0;
int length;
startTime_ = av_gettime();
ELOG_DEBUG("Start playing external input %s", url_.c_str() );
while (av_read_frame(context_, &avpacket_) >= 0&& running_ == true) {
AVPacket orig_pkt = avpacket_;
if (needTranscoding_) {
if (avpacket_.stream_index == video_stream_index_) { // packet is video
inCodec_.decodeVideo(avpacket_.data, avpacket_.size, decodedBuffer_.get(), bufflen_, &gotDecodedFrame);
RawDataPacket packetR;
if (gotDecodedFrame) {
packetR.data = decodedBuffer_.get();
packetR.length = bufflen_;
packetR.type = VIDEO;
queueMutex_.lock();
packetQueue_.push(packetR);
queueMutex_.unlock();
gotDecodedFrame = 0;
}
}
} else {
if (avpacket_.stream_index == video_stream_index_) { // packet is video
// av_rescale(input, new_scale, old_scale)
int64_t pts = av_rescale(lastPts_, 1000000, (long int) video_time_base_); // NOLINT
int64_t now = av_gettime() - startTime_;
if (pts > now) {
av_usleep(pts - now);
}
lastPts_ = avpacket_.pts;
op_->packageVideo(avpacket_.data, avpacket_.size, decodedBuffer_.get(), avpacket_.pts);
} else if (avpacket_.stream_index == audio_stream_index_) { // packet is audio
int64_t pts = av_rescale(lastAudioPts_, 1000000, (long int)audio_time_base_); // NOLINT
int64_t now = av_gettime() - startTime_;
if (pts > now) {
av_usleep(pts - now);
}
lastAudioPts_ = avpacket_.pts;
length = op_->packageAudio(avpacket_.data, avpacket_.size, decodedBuffer_.get(), avpacket_.pts);
if (length > 0) {
audioSink_->deliverAudioData(reinterpret_cast<char*>(decodedBuffer_.get()), length);
}
}
}
av_free_packet(&orig_pkt);
}
ELOG_DEBUG("Ended stream to play %s", url_.c_str());
running_ = false;
av_read_pause(context_);
}
int ff_pcm_read_seek(AVFormatContext *s,
int stream_index, int64_t timestamp, int flags)
{
AVStream *st;
int block_align, byte_rate;
int64_t pos, ret;
st = s->streams[0];
block_align = st->codecpar->block_align ? st->codecpar->block_align :
(av_get_bits_per_sample(st->codecpar->codec_id) * st->codecpar->channels) >> 3;
byte_rate = st->codecpar->bit_rate ? st->codecpar->bit_rate >> 3 :
block_align * st->codecpar->sample_rate;
if (block_align <= 0 || byte_rate <= 0)
return -1;
if (timestamp < 0) timestamp = 0;
/* compute the position by aligning it to block_align */
pos = av_rescale_rnd(timestamp * byte_rate,
st->time_base.num,
st->time_base.den * (int64_t)block_align,
(flags & AVSEEK_FLAG_BACKWARD) ? AV_ROUND_DOWN : AV_ROUND_UP);
pos *= block_align;
/* recompute exact position */
st->cur_dts = av_rescale(pos, st->time_base.den, byte_rate * (int64_t)st->time_base.num);
if ((ret = avio_seek(s->pb, pos + s->internal->data_offset, SEEK_SET)) < 0)
return ret;
return 0;
}
//Seek function
int CALL_CONVT ac_seek(lp_ac_decoder pDecoder, int dir, int64_t target_pos) {
AVRational timebase =
((lp_ac_data)pDecoder->pacInstance)->pFormatCtx->streams[pDecoder->stream_index]->time_base;
int flags = dir < 0 ? AVSEEK_FLAG_BACKWARD : 0;
int64_t pos = av_rescale(target_pos, AV_TIME_BASE, 1000);
((lp_ac_decoder_data)pDecoder)->sought = 100;
pDecoder->timecode = target_pos / 1000;
if (av_seek_frame(((lp_ac_data)pDecoder->pacInstance)->pFormatCtx, pDecoder->stream_index,
av_rescale_q(pos, AV_TIME_BASE_Q, timebase), flags) >= 0) {
if (pDecoder->type == AC_DECODER_TYPE_AUDIO)
{
if (((lp_ac_audio_decoder)pDecoder)->pCodecCtx->codec->flush != NULL)
avcodec_flush_buffers(((lp_ac_audio_decoder)pDecoder)->pCodecCtx);
av_free(((lp_ac_audio_decoder)pDecoder)->tmp_data);
((lp_ac_audio_decoder)pDecoder)->tmp_data_length = 0;
}
return 1;
}
return 0;
}
void AVFile::seekToPercent(float p)
{
if (0. < p && p < 1.) {
AVStream * s = formatCtx->streams[audioStream];
_seek_to = av_rescale(p * formatCtx->duration, s->time_base.den, AV_TIME_BASE * s->time_base.num);
}
}
static int wav_write_trailer(AVFormatContext *s)
{
ByteIOContext *pb = s->pb;
WAVContext *wav = s->priv_data;
int64_t file_size;
put_flush_packet(pb);
if (!url_is_streamed(s->pb)) {
ff_end_tag(pb, wav->data);
/* update file size */
file_size = url_ftell(pb);
url_fseek(pb, 4, SEEK_SET);
put_le32(pb, (uint32_t)(file_size - 8));
url_fseek(pb, file_size, SEEK_SET);
put_flush_packet(pb);
if(s->streams[0]->codec->codec_tag != 0x01) {
/* Update num_samps in fact chunk */
int number_of_samples;
number_of_samples = av_rescale(wav->maxpts - wav->minpts + wav->last_duration,
s->streams[0]->codec->sample_rate * (int64_t)s->streams[0]->time_base.num,
s->streams[0]->time_base.den);
url_fseek(pb, wav->data-12, SEEK_SET);
put_le32(pb, number_of_samples);
url_fseek(pb, file_size, SEEK_SET);
put_flush_packet(pb);
}
}
return 0;
}
static int request_frame(AVFilterLink *outlink)
{
AVFilterContext *ctx = outlink->src;
LADSPAContext *s = ctx->priv;
AVFrame *out;
int64_t t;
int i;
if (ctx->nb_inputs)
return ff_request_frame(ctx->inputs[0]);
t = av_rescale(s->pts, AV_TIME_BASE, s->sample_rate);
if (s->duration >= 0 && t >= s->duration)
return AVERROR_EOF;
out = ff_get_audio_buffer(outlink, s->nb_samples);
if (!out)
return AVERROR(ENOMEM);
for (i = 0; i < s->nb_outputs; i++)
s->desc->connect_port(s->handles[0], s->opmap[i],
(LADSPA_Data*)out->extended_data[i]);
s->desc->run(s->handles[0], s->nb_samples);
for (i = 0; i < s->nb_outputcontrols; i++)
print_ctl_info(ctx, AV_LOG_INFO, s, i, s->ocmap, s->octlv, 1);
out->sample_rate = s->sample_rate;
out->pts = s->pts;
s->pts += s->nb_samples;
return ff_filter_frame(outlink, out);
}
static int w64_write_trailer(AVFormatContext *s)
{
AVIOContext *pb = s->pb;
WAVMuxContext *wav = s->priv_data;
int64_t file_size;
if (pb->seekable) {
end_guid(pb, wav->data);
file_size = avio_tell(pb);
avio_seek(pb, 16, SEEK_SET);
avio_wl64(pb, file_size);
if (s->streams[0]->codec->codec_tag != 0x01) {
int64_t number_of_samples;
number_of_samples = av_rescale(wav->maxpts - wav->minpts + wav->last_duration,
s->streams[0]->codec->sample_rate * (int64_t)s->streams[0]->time_base.num,
s->streams[0]->time_base.den);
avio_seek(pb, wav->fact_pos + 24, SEEK_SET);
avio_wl64(pb, number_of_samples);
}
avio_seek(pb, file_size, SEEK_SET);
avio_flush(pb);
}
return 0;
}
static int gxf_write_media_preamble(ByteIOContext *pb, GXFContext *ctx, AVPacket *pkt, int size)
{
GXFStreamContext *sc = &ctx->streams[pkt->stream_index];
int64_t dts = av_rescale(pkt->dts, ctx->sample_rate, sc->sample_rate);
put_byte(pb, sc->media_type);
put_byte(pb, sc->index);
put_be32(pb, dts);
if (sc->codec->codec_type == CODEC_TYPE_AUDIO) {
put_be16(pb, 0);
put_be16(pb, size / 2);
} else if (sc->codec->codec_id == CODEC_ID_MPEG2VIDEO) {
int frame_type = gxf_parse_mpeg_frame(sc, pkt->data, pkt->size);
if (frame_type == FF_I_TYPE) {
put_byte(pb, 0x0d);
sc->iframes++;
} else if (frame_type == FF_B_TYPE) {
put_byte(pb, 0x0f);
sc->bframes++;
} else {
put_byte(pb, 0x0e);
sc->pframes++;
}
put_be24(pb, size);
} else if (sc->codec->codec_id == CODEC_ID_DVVIDEO) {
put_byte(pb, size / 4096);
put_be24(pb, 0);
} else
put_be32(pb, size);
put_be32(pb, dts);
put_byte(pb, 1); /* flags */
put_byte(pb, 0); /* reserved */
return 16;
}
/**
* This was the second switch in rtp_parse packet.
* Normalizes time, if required, sets stream_index, etc.
*/
static void finalize_packet(RTPDemuxContext *s, AVPacket *pkt, uint32_t timestamp)
{
if (pkt->pts != AV_NOPTS_VALUE || pkt->dts != AV_NOPTS_VALUE)
return; /* Timestamp already set by depacketizer */
if (timestamp == RTP_NOTS_VALUE)
return;
if (s->last_rtcp_ntp_time != AV_NOPTS_VALUE && s->ic->nb_streams > 1) {
int64_t addend;
int delta_timestamp;
/* compute pts from timestamp with received ntp_time */
delta_timestamp = timestamp - s->last_rtcp_timestamp;
/* convert to the PTS timebase */
addend = av_rescale(s->last_rtcp_ntp_time - s->first_rtcp_ntp_time,
s->st->time_base.den,
(uint64_t) s->st->time_base.num << 32);
pkt->pts = s->range_start_offset + s->rtcp_ts_offset + addend +
delta_timestamp;
return;
}
if (!s->base_timestamp)
s->base_timestamp = timestamp;
/* assume that the difference is INT32_MIN < x < INT32_MAX,
* but allow the first timestamp to exceed INT32_MAX */
if (!s->timestamp)
s->unwrapped_timestamp += timestamp;
else
s->unwrapped_timestamp += (int32_t)(timestamp - s->timestamp);
s->timestamp = timestamp;
pkt->pts = s->unwrapped_timestamp + s->range_start_offset -
s->base_timestamp;
}
static uint32_t parse_peak(const uint8_t *peak)
{
int64_t val = 0;
int64_t scale = 1;
if (!peak)
return 0;
peak += strspn(peak, " \t");
if (peak[0] == '1' && peak[1] == '.')
return UINT32_MAX;
else if (!(peak[0] == '0' && peak[1] == '.'))
return 0;
peak += 2;
while (av_isdigit(*peak)) {
int digit = *peak - '0';
if (scale > INT64_MAX / 10)
break;
val = 10 * val + digit;
scale *= 10;
peak++;
}
return av_rescale(val, UINT32_MAX, scale);
}
static int wav_write_trailer(AVFormatContext *s)
{
AVIOContext *pb = s->pb;
WAVMuxContext *wav = s->priv_data;
int64_t file_size;
avio_flush(pb);
if (s->pb->seekable) {
ff_end_tag(pb, wav->data);
/* update file size */
file_size = avio_tell(pb);
avio_seek(pb, 4, SEEK_SET);
avio_wl32(pb, (uint32_t)(file_size - 8));
avio_seek(pb, file_size, SEEK_SET);
avio_flush(pb);
if(s->streams[0]->codec->codec_tag != 0x01) {
/* Update num_samps in fact chunk */
int number_of_samples;
number_of_samples = av_rescale(wav->maxpts - wav->minpts + wav->last_duration,
s->streams[0]->codec->sample_rate * (int64_t)s->streams[0]->time_base.num,
s->streams[0]->time_base.den);
avio_seek(pb, wav->fact_pos, SEEK_SET);
avio_wl32(pb, number_of_samples);
avio_seek(pb, file_size, SEEK_SET);
avio_flush(pb);
}
}
return 0;
}
REFERENCE_TIME CBDDemuxer::GetDuration() const
{
if(m_pTitle) {
return av_rescale(m_pTitle->duration, 1000, 9);
}
return m_lavfDemuxer->GetDuration();
}
static void mp3_update_xing(AVFormatContext *s)
{
MP3Context *mp3 = s->priv_data;
AVReplayGain *rg;
uint16_t tag_crc;
uint8_t *toc;
int i, rg_size;
/* replace "Xing" identification string with "Info" for CBR files. */
if (!mp3->has_variable_bitrate)
AV_WL32(mp3->xing_frame + mp3->xing_offset, MKTAG('I', 'n', 'f', 'o'));
AV_WB32(mp3->xing_frame + mp3->xing_offset + 8, mp3->frames);
AV_WB32(mp3->xing_frame + mp3->xing_offset + 12, mp3->size);
toc = mp3->xing_frame + mp3->xing_offset + 16;
toc[0] = 0; // first toc entry has to be zero.
for (i = 1; i < XING_TOC_SIZE; ++i) {
int j = i * mp3->pos / XING_TOC_SIZE;
int seek_point = 256LL * mp3->bag[j] / mp3->size;
toc[i] = FFMIN(seek_point, 255);
}
/* write replaygain */
rg = (AVReplayGain*)av_stream_get_side_data(s->streams[0], AV_PKT_DATA_REPLAYGAIN,
&rg_size);
if (rg && rg_size >= sizeof(*rg)) {
uint16_t val;
AV_WB32(mp3->xing_frame + mp3->xing_offset + 131,
av_rescale(rg->track_peak, 1 << 23, 100000));
if (rg->track_gain != INT32_MIN) {
val = FFABS(rg->track_gain / 10000) & ((1 << 9) - 1);
val |= (rg->track_gain < 0) << 9;
val |= 1 << 13;
AV_WB16(mp3->xing_frame + mp3->xing_offset + 135, val);
}
if (rg->album_gain != INT32_MIN) {
val = FFABS(rg->album_gain / 10000) & ((1 << 9) - 1);
val |= (rg->album_gain < 0) << 9;
val |= 1 << 14;
AV_WB16(mp3->xing_frame + mp3->xing_offset + 137, val);
}
}
AV_WB32(mp3->xing_frame + mp3->xing_offset + XING_SIZE - 8, mp3->audio_size);
AV_WB16(mp3->xing_frame + mp3->xing_offset + XING_SIZE - 4, mp3->audio_crc);
tag_crc = av_crc(av_crc_get_table(AV_CRC_16_ANSI_LE), 0, mp3->xing_frame, 190);
AV_WB16(mp3->xing_frame + mp3->xing_offset + XING_SIZE - 2, tag_crc);
avio_seek(s->pb, mp3->xing_frame_offset, SEEK_SET);
avio_write(s->pb, mp3->xing_frame, mp3->xing_frame_size);
avio_seek(s->pb, 0, SEEK_END);
}
/**
* Try to find Xing/Info/VBRI tags and compute duration from info therein
*/
static int mp3_parse_vbr_tags(AVFormatContext *s, AVStream *st, int64_t base)
{
uint32_t v, spf;
unsigned frames = 0; /* Total number of frames in file */
unsigned size = 0; /* Total number of bytes in the stream */
const int64_t xing_offtbl[2][2] = {{32, 17}, {17,9}};
MPADecodeHeader c;
int vbrtag_size = 0;
v = avio_rb32(s->pb);
if(ff_mpa_check_header(v) < 0)
return -1;
if (avpriv_mpegaudio_decode_header(&c, v) == 0)
vbrtag_size = c.frame_size;
if(c.layer != 3)
return -1;
/* Check for Xing / Info tag */
avio_skip(s->pb, xing_offtbl[c.lsf == 1][c.nb_channels == 1]);
v = avio_rb32(s->pb);
if(v == MKBETAG('X', 'i', 'n', 'g') || v == MKBETAG('I', 'n', 'f', 'o')) {
v = avio_rb32(s->pb);
if(v & 0x1)
frames = avio_rb32(s->pb);
if(v & 0x2)
size = avio_rb32(s->pb);
}
/* Check for VBRI tag (always 32 bytes after end of mpegaudio header) */
avio_seek(s->pb, base + 4 + 32, SEEK_SET);
v = avio_rb32(s->pb);
if(v == MKBETAG('V', 'B', 'R', 'I')) {
/* Check tag version */
if(avio_rb16(s->pb) == 1) {
/* skip delay and quality */
avio_skip(s->pb, 4);
size = avio_rb32(s->pb);
frames = avio_rb32(s->pb);
}
}
if(!frames && !size)
return -1;
/* Skip the vbr tag frame */
avio_seek(s->pb, base + vbrtag_size, SEEK_SET);
spf = c.lsf ? 576 : 1152; /* Samples per frame, layer 3 */
if(frames)
st->duration = av_rescale_q(frames, (AVRational){spf, c.sample_rate},
st->time_base);
if(size && frames)
st->codec->bit_rate = av_rescale(size, 8 * c.sample_rate, frames * (int64_t)spf);
return 0;
}
static int64_t get_delay(struct SwrContext *s, int64_t base){
ResampleContext *c = s->resample;
int64_t num = s->in_buffer_count - (c->filter_length-1)/2;
num *= c->phase_count;
num -= c->index;
num *= c->src_incr;
num -= c->frac;
return av_rescale(num, base, s->in_sample_rate*(int64_t)c->src_incr * c->phase_count);
}
static int config_input(AVFilterLink *inlink)
{
AVFilterContext *ctx = inlink->dst;
SilenceRemoveContext *s = ctx->priv;
s->window_size = (inlink->sample_rate / 50) * inlink->channels;
s->window = av_malloc_array(s->window_size, sizeof(*s->window));
if (!s->window)
return AVERROR(ENOMEM);
clear_rms(s);
s->start_duration = av_rescale(s->start_duration, inlink->sample_rate,
AV_TIME_BASE);
s->stop_duration = av_rescale(s->stop_duration, inlink->sample_rate,
AV_TIME_BASE);
s->start_holdoff = av_malloc_array(FFMAX(s->start_duration, 1),
sizeof(*s->start_holdoff) *
inlink->channels);
if (!s->start_holdoff)
return AVERROR(ENOMEM);
s->start_holdoff_offset = 0;
s->start_holdoff_end = 0;
s->start_found_periods = 0;
s->stop_holdoff = av_malloc_array(FFMAX(s->stop_duration, 1),
sizeof(*s->stop_holdoff) *
inlink->channels);
if (!s->stop_holdoff)
return AVERROR(ENOMEM);
s->stop_holdoff_offset = 0;
s->stop_holdoff_end = 0;
s->stop_found_periods = 0;
if (s->start_periods)
s->mode = SILENCE_TRIM;
else
s->mode = SILENCE_COPY;
return 0;
}
int MP4Parser::mp4_read_packet(FormatContext *s, Packet *pkt)
{
int selected_stream = -1;
int64_t best_dts = INT64_MAX;
MP4Parser *obj = NULL;
Track *trak = NULL;
ReadStatus *rstatus = NULL;
// Read frame with monotonous decode timestamp
for (unsigned i = 0; i < s->nb_streams; ++i) {
Stream *st = s->streams[i];
obj = (MP4Parser *) st->priv_data;;
trak = &obj->m_track[st->id];
rstatus = &obj->m_status[st->id];
// Already read to the end of this stream, ignore it and try another one
if (rstatus->sample_idx == trak->stsz->sample_count)
continue;
int64_t dts = av_rescale(rstatus->dts.val, AV_TIME_BASE, st->time_base.den);
if (selected_stream == -1 ||
((abs(best_dts - dts) <= 4 && rstatus->sample_offset < obj->m_status[selected_stream].sample_offset) ||
(abs(best_dts - dts) > 4 && dts < best_dts))) {
selected_stream = i;
best_dts = dts;
}
}
// No more frame to be read, parse done
if (selected_stream < 0)
return -1;
trak = &obj->m_track[selected_stream];
rstatus = &obj->m_status[selected_stream];
SampleEntry sentry;
Frame frame;
if (locate_sample(trak, rstatus, &sentry) < 0 ||
read_frame(obj->m_file, trak, &sentry, &frame) < 0)
return -1;
pkt->stream_index = selected_stream;
pkt->pts = frame.get_dts() + frame.get_composition_time();
pkt->dts = frame.get_dts();
pkt->duration = rstatus->dts.val - pkt->dts;
pkt->pos = sentry.sample_offset;
// Hack style, optimize the memory algorithm
pkt->data = frame.get_data();
pkt->size = frame.get_data_length();
frame.set_data(NULL);
#ifdef XDEBUG
LOGD("%s pkt->pts=%lld, pkt->dts=%lld (composition_time=%u), pkt->size=%d, pkt->duration: %d, current_sample#=%d, total samples#=%d",
pkt->stream_index == AUDIO ? "AUDIO" : "VIDEO",
pkt->pts, pkt->dts, frame.get_composition_time(), pkt->size, pkt->duration,
rstatus->sample_idx,
trak->stsz->sample_count);
#endif
return 0;
}
int OutputProcessor::packageVideo(unsigned char* inBuff, int buffSize, unsigned char* outBuff,
long int pts) {
if (videoPackager == 0) {
ELOG_DEBUG("No se ha inicailizado el codec de output vídeo RTP");
return -1;
}
// ELOG_DEBUG("To packetize %u", buffSize);
if (buffSize <= 0)
return -1;
RtpVP8Fragmenter frag(inBuff, buffSize, 1100);
bool lastFrame = false;
unsigned int outlen = 0;
timeval time;
gettimeofday(&time, NULL);
long millis = (time.tv_sec * 1000) + (time.tv_usec / 1000);
// timestamp_ += 90000 / mediaInfo.videoCodec.frameRate;
//int64_t pts = av_rescale(lastPts_, 1000000, (long int)video_time_base_);
do {
outlen = 0;
frag.getPacket(outBuff, &outlen, &lastFrame);
RtpHeader rtpHeader;
rtpHeader.setMarker(lastFrame?1:0);
rtpHeader.setSeqNumber(seqnum_++);
if (pts==0){
rtpHeader.setTimestamp(av_rescale(millis, 90000, 1000));
}else{
rtpHeader.setTimestamp(av_rescale(pts, 90000, 1000));
}
rtpHeader.setSSRC(55543);
rtpHeader.setPayloadType(100);
memcpy(rtpBuffer_, &rtpHeader, rtpHeader.getHeaderLength());
memcpy(&rtpBuffer_[rtpHeader.getHeaderLength()],outBuff, outlen);
int l = outlen + rtpHeader.getHeaderLength();
// sink_->sendData(rtpBuffer_, l);
rtpReceiver_->receiveRtpData(rtpBuffer_, l);
} while (!lastFrame);
return 0;
}
/**
\brief Seek to millisecond
**/
bool DecodeThread::seekMs(int tsms)
{
//printf("**** SEEK TO ms %d. LLT: %d. LT: %d. LLF: %d. LF: %d. LastFrameOk: %d\n",tsms,LastLastFrameTime,LastFrameTime,LastLastFrameNumber,LastFrameNumber,(int)LastFrameOk);
cout << "tsms" << tsms << endl;
// Convert time into frame number
qint64 DesiredFrameNumber = av_rescale(tsms,pFormatCtx->streams[videoStream]->time_base.den,pFormatCtx->streams[videoStream]->time_base.num);
DesiredFrameNumber/=1000;
return seekFrame(DesiredFrameNumber);
}
//FIXME merge with compute_pkt_fields
static int compute_pkt_fields2(AVFormatContext *s, AVStream *st, AVPacket *pkt)
{
int delay = FFMAX(st->codec->has_b_frames, !!st->codec->max_b_frames);
int num, den, i;
av_dlog(s, "compute_pkt_fields2: pts:%" PRId64 " dts:%" PRId64 " cur_dts:%" PRId64 " b:%d size:%d st:%d\n",
pkt->pts, pkt->dts, st->cur_dts, delay, pkt->size, pkt->stream_index);
/* if(pkt->pts == AV_NOPTS_VALUE && pkt->dts == AV_NOPTS_VALUE)
* return AVERROR(EINVAL);*/
/* duration field */
if (pkt->duration == 0) {
ff_compute_frame_duration(s, &num, &den, st, NULL, pkt);
if (den && num) {
pkt->duration = av_rescale(1, num * (int64_t)st->time_base.den * st->codec->ticks_per_frame, den * (int64_t)st->time_base.num);
}
}
if (pkt->pts == AV_NOPTS_VALUE && pkt->dts != AV_NOPTS_VALUE && delay == 0)
pkt->pts = pkt->dts;
//calculate dts from pts
if (pkt->pts != AV_NOPTS_VALUE && pkt->dts == AV_NOPTS_VALUE && delay <= MAX_REORDER_DELAY) {
st->pts_buffer[0] = pkt->pts;
for (i = 1; i < delay + 1 && st->pts_buffer[i] == AV_NOPTS_VALUE; i++)
st->pts_buffer[i] = pkt->pts + (i - delay - 1) * pkt->duration;
for (i = 0; i<delay && st->pts_buffer[i] > st->pts_buffer[i + 1]; i++)
FFSWAP(int64_t, st->pts_buffer[i], st->pts_buffer[i + 1]);
pkt->dts = st->pts_buffer[0];
}
if (st->cur_dts && st->cur_dts != AV_NOPTS_VALUE &&
((!(s->oformat->flags & AVFMT_TS_NONSTRICT) &&
st->cur_dts >= pkt->dts) || st->cur_dts > pkt->dts)) {
av_log(s, AV_LOG_ERROR,
"Application provided invalid, non monotonically increasing dts to muxer in stream %d: %" PRId64 " >= %" PRId64 "\n",
st->index, st->cur_dts, pkt->dts);
return AVERROR(EINVAL);
}
if (pkt->dts != AV_NOPTS_VALUE && pkt->pts != AV_NOPTS_VALUE && pkt->pts < pkt->dts) {
av_log(s, AV_LOG_ERROR,
"pts %" PRId64 " < dts %" PRId64 " in stream %d\n",
pkt->pts, pkt->dts,
st->index);
return AVERROR(EINVAL);
}
av_dlog(s, "av_write_frame: pts2:%"PRId64" dts2:%"PRId64"\n",
pkt->pts, pkt->dts);
st->cur_dts = pkt->dts;
return 0;
}
static int oggvorbis_encode_frame(AVCodecContext *avccontext,
unsigned char *packets,
int buf_size, void *data)
{
OggVorbisContext *context = avccontext->priv_data ;
float **buffer ;
ogg_packet op ;
signed char *audio = data ;
int l, samples = data ? OGGVORBIS_FRAME_SIZE : 0;
buffer = vorbis_analysis_buffer(&context->vd, samples) ;
if(context->vi.channels == 1) {
for(l = 0 ; l < samples ; l++)
buffer[0][l]=((audio[l*2+1]<<8)|(0x00ff&(int)audio[l*2]))/32768.f;
} else {
for(l = 0 ; l < samples ; l++){
buffer[0][l]=((audio[l*4+1]<<8)|(0x00ff&(int)audio[l*4]))/32768.f;
buffer[1][l]=((audio[l*4+3]<<8)|(0x00ff&(int)audio[l*4+2]))/32768.f;
}
}
vorbis_analysis_wrote(&context->vd, samples) ;
while(vorbis_analysis_blockout(&context->vd, &context->vb) == 1) {
vorbis_analysis(&context->vb, NULL);
vorbis_bitrate_addblock(&context->vb) ;
while(vorbis_bitrate_flushpacket(&context->vd, &op)) {
if(op.bytes==1) //id love to say this is a hack, bad sadly its not, appearently the end of stream decission is in libogg
continue;
memcpy(context->buffer + context->buffer_index, &op, sizeof(ogg_packet));
context->buffer_index += sizeof(ogg_packet);
memcpy(context->buffer + context->buffer_index, op.packet, op.bytes);
context->buffer_index += op.bytes;
// av_log(avccontext, AV_LOG_DEBUG, "e%d / %d\n", context->buffer_index, op.bytes);
}
}
l=0;
if(context->buffer_index){
ogg_packet *op2= (ogg_packet*)context->buffer;
op2->packet = context->buffer + sizeof(ogg_packet);
l= op2->bytes;
avccontext->coded_frame->pts= av_rescale(op2->granulepos, AV_TIME_BASE, avccontext->sample_rate);
memcpy(packets, op2->packet, l);
context->buffer_index -= l + sizeof(ogg_packet);
memcpy(context->buffer, context->buffer + l + sizeof(ogg_packet), context->buffer_index);
// av_log(avccontext, AV_LOG_DEBUG, "E%d\n", l);
}
return l;
}
bool AVDecoder::seekVideo(int percentage)
{
if(!loadCodec(CODEC_VIDEO)) {
return false;
}
qint64 seek_pos = pFormatCtx->duration * percentage / (AV_TIME_BASE * 100);
qint64 frame = av_rescale(seek_pos, av_stream->time_base.den, av_stream->time_base.num);
return avformat_seek_file(pFormatCtx, stream_index, 0, frame, frame, AVSEEK_FLAG_FRAME) >= 0;
}
static void read_xing_toc(AVFormatContext *s, int64_t filesize, int64_t duration)
{
int i;
MP3Context *mp3 = s->priv_data;
if (!filesize &&
!(filesize = avio_size(s->pb))) {
av_log(s, AV_LOG_WARNING, "Cannot determine file size, skipping TOC table.\n");
return;
}
for (i = 0; i < XING_TOC_COUNT; i++) {
uint8_t b = avio_r8(s->pb);
av_add_index_entry(s->streams[0],
av_rescale(b, filesize, 256),
av_rescale(i, duration, XING_TOC_COUNT),
0, 0, AVINDEX_KEYFRAME);
}
mp3->xing_toc = 1;
}
static void reset(AVFormatContext *s, int64_t global_ts){
NUTContext *nut = s->priv_data;
int i;
for(i=0; i<s->nb_streams; i++){
StreamContext *stream= &nut->stream[i];
stream->last_key_frame= 1;
stream->last_pts= av_rescale(global_ts, stream->rate_num*(int64_t)nut->rate_den, stream->rate_den*(int64_t)nut->rate_num);
}
}
void cSoftPlayer::RemuxAndQueue(AVPacket &pkt) {
// set audio index if not yet set
if ( AudioIdx== -1 &&
#if LIBAVFORMAT_BUILD > 4628
ic->streams[pkt.stream_index]->codec->codec_type == CODEC_TYPE_AUDIO
#else
ic->streams[pkt.stream_index]->codec.codec_type == CODEC_TYPE_AUDIO
#endif
)
AudioIdx=pkt.stream_index;
// set video index if not yet set
if ( VideoIdx== -1 &&
#if LIBAVFORMAT_BUILD > 4628
ic->streams[pkt.stream_index]->codec->codec_type == CODEC_TYPE_VIDEO
#else
ic->streams[pkt.stream_index]->codec.codec_type == CODEC_TYPE_VIDEO
#endif
)
VideoIdx=pkt.stream_index;
// skip packets which do not belong to the current streams
if ( pkt.stream_index != VideoIdx &&
pkt.stream_index != AudioIdx ) {
printf("Drop Packet PTS: %lld\n",pkt.pts);
return;
};
#if LIBAVFORMAT_BUILD > 4623
AVRational time_base;
time_base=ic->streams[pkt.stream_index]->time_base;
if ( pkt.pts != (int64_t) AV_NOPTS_VALUE ) {
pkt.pts=av_rescale(pkt.pts, AV_TIME_BASE* (int64_t)time_base.num, time_base.den)/100 ;
};
//printf("PTS: %lld new %lld num %d den %d\n",PTS,pkt.pts,
// time_base.num,time_base.den);
#else
if ( pkt.pts != (int64_t) AV_NOPTS_VALUE )
pkt.pts/=100;
#endif
//pkt.pts*=1000/AV_TIME_BASE;
av_dup_packet(&pkt);
// length = -2 : queue packet
PKTDBG("Queue Packet index: %d PTS: %lld\n",pkt.stream_index,pkt.pts);
#if VDRVERSNUM >= 10330
SoftHandles.QueuePacket(SoftDevice,ic,pkt);
#else
SoftDevice->PlayVideo((uchar *)&pkt,-2);
#endif
};
double wxFfmpegMediaDecoder::GetPosition() {
AVStream *st = GetVideoStream();
if (st == NULL)
return -1;
int64_t timestamp = st->cur_dts;
if (timestamp == (int64_t)AV_NOPTS_VALUE)
return -1;
timestamp = av_rescale(timestamp, AV_TIME_BASE * (int64_t)st->time_base.num, st->time_base.den);
if (m_formatCtx->start_time != (int64_t)AV_NOPTS_VALUE)
timestamp -= m_formatCtx->start_time;
return ((double)timestamp)/AV_TIME_BASE;
}
InputContext * input_context_new (const char * filename) {
int ok = 0;
// open file
AVFormatContext * pfc = NULL;
ok = avformat_open_input(&pfc, filename, NULL, NULL);
if (ok != 0) {
goto failed;
}
// find stream
int stnb = av_find_best_stream(pfc, AVMEDIA_TYPE_VIDEO, -1, -1, NULL, 0);
AVStream * pst = pfc->streams[stnb];
AVRational * ptb = &pst->time_base;
int64_t duration = av_rescale(pst->duration, ptb->num, ptb->den);
// find codec
AVCodec * pc = avcodec_find_decoder(pst->codecpar->codec_id);
if (!pc) {
goto close_demuxer;
}
AVCodecContext * pcc = avcodec_alloc_context3(pc);
if (!pcc) {
goto close_demuxer;
}
ok = avcodec_parameters_to_context(pcc, pst->codecpar);
if (ok < 0) {
goto close_decoder;
}
ok = avcodec_open2(pcc, pc, NULL);
if (ok != 0) {
goto close_decoder;
}
InputContext * context = malloc(sizeof(InputContext));
context->format_context = pfc;
context->stream = pst;
context->codec = pc;
context->codec_context = pcc;
context->stream_index = stnb;
context->time_base = ptb;
context->duration = duration;
return context;
close_decoder:
avcodec_free_context(&pcc);
close_demuxer:
avformat_close_input(&pfc);
failed:
return NULL;
}
