static int open_f(stream_t *stream, int mode, void *opts, int *file_format)
{
int flags = 0;
const char *filename;
AVIOContext *ctx = NULL;
int res = STREAM_ERROR;
int64_t size;
int dummy;
init_avformat();
if (mode == STREAM_READ)
flags = AVIO_FLAG_READ;
else if (mode == STREAM_WRITE)
flags = AVIO_FLAG_WRITE;
else {
mp_msg(MSGT_OPEN, MSGL_ERR, "[ffmpeg] Unknown open mode %d\n", mode);
res = STREAM_UNSUPPORTED;
goto out;
}
#ifdef AVIO_FLAG_DIRECT
flags |= AVIO_FLAG_DIRECT;
#else
mp_msg(MSGT_OPEN, MSGL_WARN, "[ffmpeg] No support for AVIO_FLAG_DIRECT, might cause performance and other issues.\n"
"Please update to and rebuild against an FFmpeg version supporting it.\n");
#endif
if (stream->url)
filename = stream->url;
else {
mp_msg(MSGT_OPEN, MSGL_ERR, "[ffmpeg] No URL\n");
goto out;
}
if (!strncmp(filename, prefix, strlen(prefix)))
filename += strlen(prefix);
dummy = !strncmp(filename, "rtsp:", 5);
mp_msg(MSGT_OPEN, MSGL_V, "[ffmpeg] Opening %s\n", filename);
if (!dummy && avio_open(&ctx, filename, flags) < 0)
goto out;
stream->priv = ctx;
size = dummy ? 0 : avio_size(ctx);
if (size >= 0)
stream->end_pos = size;
stream->type = STREAMTYPE_FILE;
stream->seek = seek;
if (dummy || !ctx->seekable) {
stream->type = STREAMTYPE_STREAM;
stream->seek = NULL;
}
if (!dummy) {
stream->fill_buffer = fill_buffer;
stream->write_buffer = write_buffer;
stream->control = control;
stream->close = close_f;
}
res = STREAM_OK;
out:
return res;
}
static int lavf_check_file(demuxer_t *demuxer){
AVProbeData avpd;
lavf_priv_t *priv;
int probe_data_size = 0;
int read_size = INITIAL_PROBE_SIZE;
int score;
if(!demuxer->priv)
demuxer->priv=calloc(sizeof(lavf_priv_t),1);
priv= demuxer->priv;
init_avformat();
if (opt_format) {
if (strcmp(opt_format, "help") == 0) {
list_formats();
return 0;
}
priv->avif= av_find_input_format(opt_format);
if (!priv->avif) {
mp_msg(MSGT_DEMUX,MSGL_FATAL,"Unknown lavf format %s\n", opt_format);
return 0;
}
mp_msg(MSGT_DEMUX,MSGL_INFO,"Forced lavf %s demuxer\n", priv->avif->long_name);
return DEMUXER_TYPE_LAVF;
}
avpd.buf = av_mallocz(FFMAX(BIO_BUFFER_SIZE, PROBE_BUF_SIZE) +
FF_INPUT_BUFFER_PADDING_SIZE);
do {
read_size = stream_read(demuxer->stream, avpd.buf + probe_data_size, read_size);
if(read_size < 0) {
av_free(avpd.buf);
return 0;
}
probe_data_size += read_size;
avpd.filename= demuxer->stream->url;
if (!avpd.filename) {
mp_msg(MSGT_DEMUX, MSGL_WARN, "Stream url is not set!\n");
avpd.filename = "";
}
if (!strncmp(avpd.filename, "ffmpeg://", 9))
avpd.filename += 9;
avpd.buf_size= probe_data_size;
score = 0;
priv->avif= av_probe_input_format2(&avpd, probe_data_size > 0, &score);
read_size = FFMIN(2*read_size, PROBE_BUF_SIZE - probe_data_size);
} while ((demuxer->desc->type != DEMUXER_TYPE_LAVF_PREFERRED ||
probe_data_size < SMALL_MAX_PROBE_SIZE) &&
score <= AVPROBE_SCORE_MAX / 4 &&
read_size > 0 && probe_data_size < PROBE_BUF_SIZE);
av_free(avpd.buf);
if(!priv->avif){
mp_msg(MSGT_HEADER,MSGL_V,"LAVF_check: no clue about this gibberish!\n");
return 0;
}else
mp_msg(MSGT_HEADER,MSGL_V,"LAVF_check: %s\n", priv->avif->long_name);
return DEMUXER_TYPE_LAVF;
}
int muxer_init_muxer_lavf(muxer_t *muxer)
{
muxer_priv_t *priv;
AVOutputFormat *fmt = NULL;
init_avformat();
if (conf_format && strcmp(conf_format, "help") == 0) {
list_formats();
return 0;
}
mp_msg(MSGT_MUXER, MSGL_WARN, "** MUXER_LAVF *****************************************************************\n");
mp_msg(MSGT_MUXER, MSGL_WARN,
"REMEMBER: MEncoder's libavformat muxing is presently broken and can generate\n"
"INCORRECT files in the presence of B-frames. Moreover, due to bugs MPlayer\n"
"will play these INCORRECT files as if nothing were wrong!\n"
"*******************************************************************************\n");
priv = calloc(1, sizeof(muxer_priv_t));
if(priv == NULL)
return 0;
priv->oc = avformat_alloc_context();
if(!priv->oc)
{
mp_msg(MSGT_MUXER, MSGL_FATAL, "Could not get format context.\n");
goto fail;
}
if(conf_format)
fmt = av_guess_format(conf_format, NULL, NULL);
if(! fmt)
fmt = av_guess_format(NULL, out_filename, NULL);
if(! fmt)
{
mp_msg(MSGT_MUXER, MSGL_FATAL, "Cannot get specified format.\n");
goto fail;
}
priv->oc->oformat = fmt;
priv->oc->packet_size= mux_packet_size;
priv->oc->max_delay= (int)(mux_max_delay*AV_TIME_BASE);
if (info_name)
av_dict_set(&priv->oc->metadata, "title", info_name, 0);
if (info_artist)
av_dict_set(&priv->oc->metadata, "author", info_artist, 0);
if (info_genre)
av_dict_set(&priv->oc->metadata, "genre", info_genre, 0);
if (info_copyright)
av_dict_set(&priv->oc->metadata, "copyright", info_copyright, 0);
if (info_comment)
av_dict_set(&priv->oc->metadata, "comment", info_comment, 0);
if(mux_avopt){
if(parse_avopts(priv->oc, mux_avopt) < 0){
mp_msg(MSGT_MUXER,MSGL_ERR, "Your options /%s/ look like gibberish to me pal.\n", mux_avopt);
goto fail;
}
}
priv->oc->pb = avio_alloc_context(priv->buffer, BIO_BUFFER_SIZE, 1, muxer, NULL, mp_write, mp_seek);
if ((muxer->stream->flags & MP_STREAM_SEEK) != MP_STREAM_SEEK)
priv->oc->pb->seekable = 0;
muxer->priv = priv;
muxer->cont_new_stream = &lavf_new_stream;
muxer->cont_write_chunk = &write_chunk;
muxer->cont_write_header = &write_header;
muxer->cont_write_index = &write_trailer;
muxer->fix_stream_parameters = &fix_parameters;
mp_msg(MSGT_MUXER, MSGL_INFO, "OK, exit.\n");
return 1;
fail:
free(priv);
return 0;
}
static int init(sh_audio_t *sh)
{
int i, x, in_size, srate, bps, *dtshd_rate;
unsigned char *start;
double pts;
static const struct {
const char *name; enum AVCodecID id;
} fmt_id_type[] = {
{ "aac" , AV_CODEC_ID_AAC },
{ "ac3" , AV_CODEC_ID_AC3 },
{ "dca" , AV_CODEC_ID_DTS },
{ "eac3", AV_CODEC_ID_EAC3 },
{ "mpa" , AV_CODEC_ID_MP3 },
{ "thd" , AV_CODEC_ID_TRUEHD },
{ NULL , 0 }
};
AVFormatContext *lavf_ctx = NULL;
AVStream *stream = NULL;
const AVOption *opt = NULL;
struct spdifContext *spdif_ctx = NULL;
spdif_ctx = av_mallocz(sizeof(*spdif_ctx));
if (!spdif_ctx)
goto fail;
spdif_ctx->lavf_ctx = avformat_alloc_context();
if (!spdif_ctx->lavf_ctx)
goto fail;
sh->context = spdif_ctx;
lavf_ctx = spdif_ctx->lavf_ctx;
init_avformat();
lavf_ctx->oformat = av_guess_format(FILENAME_SPDIFENC, NULL, NULL);
if (!lavf_ctx->oformat)
goto fail;
lavf_ctx->priv_data = av_mallocz(lavf_ctx->oformat->priv_data_size);
if (!lavf_ctx->priv_data)
goto fail;
lavf_ctx->pb = avio_alloc_context(spdif_ctx->pb_buffer, OUTBUF_SIZE, 1, spdif_ctx,
read_packet, write_packet, seek);
if (!lavf_ctx->pb)
goto fail;
stream = avformat_new_stream(lavf_ctx, 0);
if (!stream)
goto fail;
lavf_ctx->duration = AV_NOPTS_VALUE;
lavf_ctx->start_time = AV_NOPTS_VALUE;
for (i = 0; fmt_id_type[i].name; i++) {
if (!strcmp(sh->codec->dll, fmt_id_type[i].name)) {
lavf_ctx->streams[0]->codec->codec_id = fmt_id_type[i].id;
break;
}
}
lavf_ctx->internal->raw_packet_buffer_remaining_size = RAW_PACKET_BUFFER_SIZE;
if (AVERROR_PATCHWELCOME == lavf_ctx->oformat->write_header(lavf_ctx)) {
mp_msg(MSGT_DECAUDIO,MSGL_INFO,
"This codec is not supported by spdifenc.\n");
goto fail;
}
// get sample_rate & bitrate from parser
x = ds_get_packet_pts(sh->ds, &start, &pts);
in_size = x;
if (x <= 0) {
pts = MP_NOPTS_VALUE;
x = 0;
}
ds_parse(sh->ds, &start, &x, pts, 0);
srate = 48000; //fake value
bps = 768000/8; //fake value
if (x && sh->avctx) { // we have parser and large enough buffer
if (sh->avctx->sample_rate < 44100) {
mp_msg(MSGT_DECAUDIO,MSGL_INFO,
"This stream sample_rate[%d Hz] may be broken. "
"Force reset 48000Hz.\n",
sh->avctx->sample_rate);
srate = 48000; //fake value
} else
srate = sh->avctx->sample_rate;
bps = sh->avctx->bit_rate/8;
}
sh->ds->buffer_pos -= in_size;
switch (lavf_ctx->streams[0]->codec->codec_id) {
case AV_CODEC_ID_AAC:
spdif_ctx->iec61937_packet_size = 16384;
sh->sample_format = AF_FORMAT_IEC61937_LE;
sh->samplerate = srate;
sh->channels = 2;
sh->i_bps = bps;
break;
case AV_CODEC_ID_AC3:
spdif_ctx->iec61937_packet_size = 6144;
sh->sample_format = AF_FORMAT_AC3_LE;
sh->samplerate = srate;
sh->channels = 2;
sh->i_bps = bps;
break;
case AV_CODEC_ID_DTS: // FORCE USE DTS-HD
opt = av_opt_find(&lavf_ctx->oformat->priv_class,
"dtshd_rate", NULL, 0, 0);
if (!opt)
goto fail;
dtshd_rate = (int*)(((uint8_t*)lavf_ctx->priv_data) +
opt->offset);
*dtshd_rate = 192000*4;
spdif_ctx->iec61937_packet_size = 32768;
sh->sample_format = AF_FORMAT_IEC61937_LE;
sh->samplerate = 192000; // DTS core require 48000
sh->channels = 2*4;
sh->i_bps = bps;
break;
case AV_CODEC_ID_EAC3:
spdif_ctx->iec61937_packet_size = 24576;
sh->sample_format = AF_FORMAT_IEC61937_LE;
sh->samplerate = 192000;
sh->channels = 2;
sh->i_bps = bps;
break;
case AV_CODEC_ID_MP3:
spdif_ctx->iec61937_packet_size = 4608;
sh->sample_format = AF_FORMAT_MPEG2;
sh->samplerate = srate;
sh->channels = 2;
sh->i_bps = bps;
break;
case AV_CODEC_ID_TRUEHD:
spdif_ctx->iec61937_packet_size = 61440;
sh->sample_format = AF_FORMAT_IEC61937_LE;
sh->samplerate = 192000;
sh->channels = 8;
sh->i_bps = bps;
break;
default:
break;
}
return 1;
fail:
uninit(sh);
return 0;
}
static inline bool mp_media_thread(mp_media_t *m)
{
os_set_thread_name("mp_media_thread");
if (!init_avformat(m)) {
return false;
}
if (!mp_media_reset(m)) {
return false;
}
for (;;) {
bool reset, kill, is_active;
bool timeout = false;
pthread_mutex_lock(&m->mutex);
is_active = m->active;
pthread_mutex_unlock(&m->mutex);
if (!is_active) {
if (os_sem_wait(m->sem) < 0)
return false;
} else {
timeout = mp_media_sleepto(m);
}
pthread_mutex_lock(&m->mutex);
reset = m->reset;
kill = m->kill;
m->reset = false;
m->kill = false;
pthread_mutex_unlock(&m->mutex);
if (kill) {
break;
}
if (reset) {
mp_media_reset(m);
continue;
}
/* frames are ready */
if (is_active && !timeout) {
if (m->has_video)
mp_media_next_video(m, false);
if (m->has_audio)
mp_media_next_audio(m);
if (!mp_media_prepare_frames(m))
return false;
if (mp_media_eof(m))
continue;
mp_media_calc_next_ns(m);
}
}
return true;
}
