//returns the first pts found within TIME_STAMP_PROBE_LEN bytes after stream_pos in demuxer's stream.
//if no pts is found or an error occurs, -1.0 is returned.
//Packs are freed.
static float read_first_mpeg_pts_at_position(demuxer_t* demuxer, off_t stream_pos)
{
stream_t *s = demuxer->stream;
mpg_demuxer_t *mpg_d = demuxer->priv;
float pts = -1.0; //the pts to return;
float found_pts1; //the most recently found pts
float found_pts2; //the pts found before found_pts1
float found_pts3; //the pts found before found_pts2
int found = 0;
if(!mpg_d || stream_pos < 0)
return pts;
found_pts3 = found_pts2 = found_pts1 = mpg_d->last_pts;
stream_seek(s, stream_pos);
//We look for pts.
//However, we do not stop at the first found one, as timestamps may reset
//Therefore, we seek until we found three consecutive
//pts within MAX_PTS_DIFF_FOR_CONSECUTIVE.
while(found<3 && !s->eof
&& (fabsf(found_pts2-found_pts1) < MAX_PTS_DIFF_FOR_CONSECUTIVE)
&& (fabsf(found_pts3-found_pts2) < MAX_PTS_DIFF_FOR_CONSECUTIVE)
&& (stream_tell(s) < stream_pos + TIMESTAMP_PROBE_LEN)
&& ds_fill_buffer(demuxer->video))
{
if(mpg_d->last_pts != found_pts1)
{
if(!found)
found_pts3 = found_pts2 = found_pts1 = mpg_d->last_pts; //the most recently found pts
else
{
found_pts3 = found_pts2;
found_pts2 = found_pts1;
found_pts1 = mpg_d->last_pts;
}
found++;
}
}
if(found == 3) pts = found_pts3;
//clean up from searching of first pts;
ds_free_packs(demuxer->audio);
ds_free_packs(demuxer->video);
ds_free_packs(demuxer->sub);
return pts;
}
static void demux_isdbt_seek(demuxer_t *demuxer, float rel_seek_secs, float audio_delay, int flags)
{
demux_stream_t *d_audio=demuxer->audio;
demux_stream_t *d_video=demuxer->video;
demux_stream_t *d_sub=demuxer->sub;
sh_audio_t *sh_audio=d_audio->sh;
sh_video_t *sh_video=d_video->sh;
//================= seek in isdbt ==========================
// ts_dump_streams(demuxer->priv);
// reset_fifos(priv, sh_audio != NULL, sh_video != NULL, demuxer->sub->id > 0);
demuxer->stream_pts=cur_ts;
LOGE("seek from demux!--------------------\n");
if(sh_audio != NULL)
ds_free_packs(d_audio);
if(sh_video != NULL)
ds_free_packs(d_video);
if(demuxer->sub->id > 0)
ds_free_packs(d_sub);
}
//This is an almost verbatim copy of high_res_mp3_seek(), from demux_audio.c
static void demux_aac_seek(demuxer_t *demuxer, float rel_seek_secs, float audio_delay, int flags)
{
aac_priv_t *priv = (aac_priv_t *) demuxer->priv;
demux_stream_t *d_audio=demuxer->audio;
sh_audio_t *sh_audio=d_audio->sh;
float time;
ds_free_packs(d_audio);
time = (flags & SEEK_ABSOLUTE) ? rel_seek_secs - priv->last_pts : rel_seek_secs;
if(time < 0)
{
stream_seek(demuxer->stream, demuxer->movi_start);
time = priv->last_pts + time;
priv->last_pts = 0;
}
if(time > 0)
{
int len, nf, srate, num;
nf = time * sh_audio->samplerate/1024;
while(nf > 0)
{
if(stream_read(demuxer->stream,priv->buf, 8) < 8)
break;
len = aac_parse_frame(priv->buf, &srate, &num);
if(len <= 0)
{
stream_skip(demuxer->stream, -7);
continue;
}
stream_skip(demuxer->stream, len - 8);
priv->last_pts += (float) (num*1024.0/srate);
nf -= num;
}
}
}
static void demux_seek_aac_adif(demuxer_t *demuxer, float rel_seek_secs, float audio_delay, int flags)
{
aac_adif_priv_t *priv = (aac_adif_priv_t *) demuxer->priv;
demux_stream_t *d_audio=demuxer->audio;
sh_audio_t *sh_audio=d_audio->sh;
float time;
unsigned int frame_len;
// frame_len = (1024 / priv->srate) * (priv->bitrate/8);
// frame_len = ((1024 * priv->bitrate * 4) / (8 * 44100));
frame_len = ((1024.0 * 16.0) / (float) priv->srate) * ((float) priv->bitrate/8.0);
ds_free_packs(d_audio);
time = (flags & 1) ? rel_seek_secs : priv->last_pts + rel_seek_secs;
if(time < 0)
{
stream_seek(demuxer->stream, demuxer->movi_start);
time = priv->last_pts + time;
priv->last_pts = 0;
}
if(time > 0)
{
float fltpos;
int pos;
fltpos = time * (priv->bitrate/8);
pos = (int) fltpos;
pos /= frame_len;
pos *= frame_len;
pos += priv->hdrlen;
if (pos > demuxer->movi_end) pos = demuxer->movi_end;
stream_seek(demuxer->stream, pos);
}
// sh_audio->delay = priv->last_pts - (ds_tell_pts(demuxer->audio)-sh_audio->a_in_buffer_len)/(float)priv->bitrate; // FIXME - ????
}
static int demux_lavf_control(demuxer_t *demuxer, int cmd, void *arg)
{
lavf_priv_t *priv = demuxer->priv;
switch (cmd) {
case DEMUXER_CTRL_CORRECT_PTS:
return DEMUXER_CTRL_OK;
case DEMUXER_CTRL_GET_TIME_LENGTH:
if (priv->avfc->duration == 0 || priv->avfc->duration == AV_NOPTS_VALUE)
return DEMUXER_CTRL_DONTKNOW;
*((double *)arg) = (double)priv->avfc->duration / AV_TIME_BASE;
return DEMUXER_CTRL_OK;
case DEMUXER_CTRL_GET_PERCENT_POS:
if (priv->avfc->duration == 0 || priv->avfc->duration == AV_NOPTS_VALUE)
return DEMUXER_CTRL_DONTKNOW;
*((int *)arg) = (int)((priv->last_pts - priv->avfc->start_time)*100 / priv->avfc->duration);
return DEMUXER_CTRL_OK;
case DEMUXER_CTRL_SWITCH_AUDIO:
case DEMUXER_CTRL_SWITCH_VIDEO:
{
int id = *((int*)arg);
int newid = -2;
int i, curridx = -1;
int nstreams, *pstreams;
demux_stream_t *ds;
if(cmd == DEMUXER_CTRL_SWITCH_VIDEO)
{
ds = demuxer->video;
nstreams = priv->video_streams;
pstreams = priv->vstreams;
}
else
{
ds = demuxer->audio;
nstreams = priv->audio_streams;
pstreams = priv->astreams;
}
for(i = 0; i < nstreams; i++)
{
if(pstreams[i] == ds->id) //current stream id
{
curridx = i;
break;
}
}
if(id == -2) { // no sound
i = -1;
} else if(id == -1) { // next track
i = (curridx + 2) % (nstreams + 1) - 1;
if (i >= 0)
newid = pstreams[i];
}
else // select track by id
{
if (id >= 0 && id < nstreams) {
i = id;
newid = pstreams[i];
}
}
if(i == curridx)
return DEMUXER_CTRL_NOTIMPL;
else
{
ds_free_packs(ds);
if(ds->id >= 0)
priv->avfc->streams[ds->id]->discard = AVDISCARD_ALL;
*((int*)arg) = ds->id = newid;
if(newid >= 0)
priv->avfc->streams[newid]->discard = AVDISCARD_NONE;
return DEMUXER_CTRL_OK;
}
}
case DEMUXER_CTRL_IDENTIFY_PROGRAM:
{
demux_program_t *prog = arg;
AVProgram *program;
int p, i;
int start;
prog->vid = prog->aid = prog->sid = -2; //no audio and no video by default
if(priv->avfc->nb_programs < 1)
return DEMUXER_CTRL_DONTKNOW;
if(prog->progid == -1)
{
p = 0;
while(p<priv->avfc->nb_programs && priv->avfc->programs[p]->id != priv->cur_program)
p++;
p = (p + 1) % priv->avfc->nb_programs;
}
else
{
for(i=0; i<priv->avfc->nb_programs; i++)
if(priv->avfc->programs[i]->id == prog->progid)
break;
if(i==priv->avfc->nb_programs)
return DEMUXER_CTRL_DONTKNOW;
p = i;
}
start = p;
redo:
program = priv->avfc->programs[p];
for(i=0; i<program->nb_stream_indexes; i++)
{
switch(priv->avfc->streams[program->stream_index[i]]->codec->codec_type)
{
case AVMEDIA_TYPE_VIDEO:
if(prog->vid == -2)
prog->vid = program->stream_index[i];
break;
case AVMEDIA_TYPE_AUDIO:
if(prog->aid == -2)
prog->aid = program->stream_index[i];
break;
case AVMEDIA_TYPE_SUBTITLE:
if(prog->sid == -2)
prog->sid = program->stream_index[i];
break;
}
}
if (prog->aid >= 0 && prog->aid < MAX_A_STREAMS &&
demuxer->a_streams[prog->aid]) {
sh_audio_t *sh = demuxer->a_streams[prog->aid];
prog->aid = sh->aid;
} else
prog->aid = -2;
if (prog->vid >= 0 && prog->vid < MAX_V_STREAMS &&
demuxer->v_streams[prog->vid]) {
sh_video_t *sh = demuxer->v_streams[prog->vid];
prog->vid = sh->vid;
} else
prog->vid = -2;
if(prog->progid == -1 && prog->vid == -2 && prog->aid == -2)
{
p = (p + 1) % priv->avfc->nb_programs;
if (p == start)
return DEMUXER_CTRL_DONTKNOW;
goto redo;
}
priv->cur_program = prog->progid = program->id;
return DEMUXER_CTRL_OK;
}
default:
return DEMUXER_CTRL_NOTIMPL;
}
}
static void ASFThread(Context_t *context)
{
#ifdef DEBUG
printf("%s::%s\n", FILENAME, __FUNCTION__);
#endif
while (context->playback->isCreationPhase)
{
#ifdef DEBUG
printf("%s::%s Thread waiting for end of init phase...\n", FILENAME, __FUNCTION__);
#endif
}
#ifdef DEBUG
printf("%s::%s Running!\n", FILENAME, __FUNCTION__);
#endif
while (context && context->playback && context->playback->isPlaying)
{
//printf("%s -->\n", __FUNCTION__);
//IF MOVIE IS PAUSED, WAIT
if (context->playback->isPaused)
{
#ifdef DEBUG
printf("%s::%s paused\n", FILENAME, __FUNCTION__);
#endif
usleep(100000);
continue;
}
if (context->playback->isSeeking || whileSeeking)
{
#ifdef DEBUG
printf("%s::%s seeking\n", FILENAME, __FUNCTION__);
#endif
usleep(100000);
continue;
}
//getASFMutex(FILENAME, __FUNCTION__,__LINE__);
if (!demux_asf_fill_buffer(ds->demuxer, ds))
{
#ifdef DEBUG
printf("%s::%s demux_asf_fill_buffer failed!\n", FILENAME, __FUNCTION__);
#endif
//releaseASFMutex(FILENAME, __FUNCTION__,__LINE__);
break;
}
else
{
ASFGenerateParcel(context, ds->demuxer);
if (ds->demuxer->sub != NULL && ds->demuxer->sub->first != NULL)
{
ds_free_packs(ds->demuxer->sub);
}
/* Dont free the packs, as the fragments would be deleted
if (ds->demuxer->audio != NULL && ds->demuxer->audio->first != NULL) {
ds_free_packs(ds->demuxer->audio);
}
if (ds->demuxer->video != NULL && ds->demuxer->video->first != NULL) {
ds_free_packs(ds->demuxer->video);
}
*/
//releaseASFMutex(FILENAME, __FUNCTION__,__LINE__);
}
}
hasPlayThreadStarted = 0; // prevent locking situation when calling PLAYBACK_TERM
context->playback->Command(context, PLAYBACK_TERM, NULL);
#ifdef DEBUG
printf("%s::%s terminating\n", FILENAME, __FUNCTION__);
#endif
}
static void free_demuxer_stream(struct demux_stream *ds)
{
ds_free_packs(ds);
free(ds);
}
void demux_flush(demuxer_t *demuxer)
{
ds_free_packs(demuxer->video);
ds_free_packs(demuxer->audio);
ds_free_packs(demuxer->sub);
}
static int demux_lavf_control(demuxer_t *demuxer, int cmd, void *arg)
{
lavf_priv_t *priv = demuxer->priv;
switch (cmd) {
case DEMUXER_CTRL_GET_TIME_LENGTH:
if (priv->avfc->duration == 0 || priv->avfc->duration == AV_NOPTS_VALUE)
return DEMUXER_CTRL_DONTKNOW;
*((double *)arg) = (double)priv->avfc->duration / AV_TIME_BASE;
return DEMUXER_CTRL_OK;
case DEMUXER_CTRL_GET_PERCENT_POS:
if (priv->avfc->duration == 0 || priv->avfc->duration == AV_NOPTS_VALUE)
return DEMUXER_CTRL_DONTKNOW;
*((int *)arg) = (int)((priv->last_pts - priv->avfc->start_time)*100 / priv->avfc->duration);
return DEMUXER_CTRL_OK;
case DEMUXER_CTRL_SWITCH_AUDIO:
case DEMUXER_CTRL_SWITCH_VIDEO:
{
int id = *((int*)arg);
int newid = -2;
int i, curridx = -2;
int nstreams, *pstreams;
demux_stream_t *ds;
if(cmd == DEMUXER_CTRL_SWITCH_VIDEO)
{
ds = demuxer->video;
nstreams = priv->video_streams;
pstreams = priv->vstreams;
}
else
{
ds = demuxer->audio;
nstreams = priv->audio_streams;
pstreams = priv->astreams;
}
if(ds->id == -2)
return DEMUXER_CTRL_NOTIMPL;
for(i = 0; i < nstreams; i++)
{
if(pstreams[i] == ds->id) //current stream id
{
curridx = i;
break;
}
}
if(id < 0)
{
i = (curridx + 1) % nstreams;
newid = pstreams[i];
}
else
{
for(i = 0; i < nstreams; i++)
{
if(pstreams[i] == id)
{
newid = id;
break;
}
}
}
if(newid == -2 || i == curridx)
return DEMUXER_CTRL_NOTIMPL;
else
{
ds_free_packs(ds);
priv->avfc->streams[ds->id]->discard = AVDISCARD_ALL;
*((int*)arg) = ds->id = newid;
priv->avfc->streams[newid]->discard = AVDISCARD_NONE;
return DEMUXER_CTRL_OK;
}
}
default:
return DEMUXER_CTRL_NOTIMPL;
}
}
static int demux_lavf_control(demuxer_t *demuxer, int cmd, void *arg)
{
lavf_priv_t *priv = demuxer->priv;
switch (cmd) {
case DEMUXER_CTRL_GET_TIME_LENGTH:
if (priv->avfc->duration == 0 || priv->avfc->duration == AV_NOPTS_VALUE)
return DEMUXER_CTRL_DONTKNOW;
*((double *)arg) = (double)priv->avfc->duration / AV_TIME_BASE;
return DEMUXER_CTRL_OK;
case DEMUXER_CTRL_GET_PERCENT_POS:
if (priv->avfc->duration == 0 || priv->avfc->duration == AV_NOPTS_VALUE)
return DEMUXER_CTRL_DONTKNOW;
*((int *)arg) = (int)((priv->last_pts - priv->avfc->start_time)*100 / priv->avfc->duration);
return DEMUXER_CTRL_OK;
case DEMUXER_CTRL_SWITCH_AUDIO:
case DEMUXER_CTRL_SWITCH_VIDEO:
{
int id = *((int*)arg);
int newid = -2;
int i, curridx = -2;
int nstreams, *pstreams;
demux_stream_t *ds;
if(cmd == DEMUXER_CTRL_SWITCH_VIDEO)
{
ds = demuxer->video;
nstreams = priv->video_streams;
pstreams = priv->vstreams;
}
else
{
ds = demuxer->audio;
nstreams = priv->audio_streams;
pstreams = priv->astreams;
}
if(id == -2)
{
if(ds->id >= 0)
priv->avfc->streams[ds->id]->discard = AVDISCARD_ALL;
ds_free_packs(ds);
*((int*)arg) = ds->id = -2;
return DEMUXER_CTRL_OK;
}
for(i = 0; i < nstreams; i++)
{
if(pstreams[i] == ds->id) //current stream id
{
curridx = i;
break;
}
}
if(id < 0)
{
i = (curridx + 1) % nstreams;
newid = pstreams[i];
}
else
{
for(i = 0; i < nstreams; i++)
{
if(pstreams[i] == id)
{
newid = id;
break;
}
}
}
if(i == curridx)
return DEMUXER_CTRL_NOTIMPL;
else
{
ds_free_packs(ds);
if(ds->id >= 0)
priv->avfc->streams[ds->id]->discard = AVDISCARD_ALL;
*((int*)arg) = ds->id = newid;
if(newid >= 0)
priv->avfc->streams[newid]->discard = AVDISCARD_NONE;
return DEMUXER_CTRL_OK;
}
}
case DEMUXER_CTRL_IDENTIFY_PROGRAM:
{
demux_program_t *prog = arg;
AVProgram *program;
int p, i;
if(priv->avfc->nb_programs < 2)
return DEMUXER_CTRL_NOTIMPL;
if(prog->progid == -1)
{
p = 0;
while(p<priv->avfc->nb_programs && priv->avfc->programs[p]->id != priv->cur_program)
p++;
p = (p + 1) % priv->avfc->nb_programs;
}
else
{
for(i=0; i<priv->avfc->nb_programs; i++)
if(priv->avfc->programs[i]->id == prog->progid)
break;
if(i==priv->avfc->nb_programs)
return DEMUXER_CTRL_NOTIMPL;
p = i;
}
prog->vid = prog->aid = prog->sid = -2; //no audio and no video by default
redo:
program = priv->avfc->programs[p];
for(i=0; i<program->nb_stream_indexes; i++)
{
switch(priv->avfc->streams[program->stream_index[i]]->codec->codec_type)
{
case CODEC_TYPE_VIDEO:
if(prog->vid == -2)
prog->vid = program->stream_index[i];
break;
case CODEC_TYPE_AUDIO:
if(prog->aid == -2)
prog->aid = program->stream_index[i];
break;
case CODEC_TYPE_SUBTITLE:
if(prog->sid == -2 && priv->avfc->streams[program->stream_index[i]]->codec->codec_id == CODEC_ID_TEXT)
prog->sid = program->stream_index[i];
break;
}
}
if(prog->progid == -1 && prog->vid == -2 && prog->aid == -2)
{
p = (p + 1) % priv->avfc->nb_programs;
goto redo;
}
priv->cur_program = prog->progid = program->id;
return DEMUXER_CTRL_OK;
}
default:
return DEMUXER_CTRL_NOTIMPL;
}
}