diff options
Diffstat (limited to 'fftools/ffmpeg_demux.c')
| -rw-r--r-- | fftools/ffmpeg_demux.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/fftools/ffmpeg_demux.c b/fftools/ffmpeg_demux.c index 2d49a3c48c..182364dae5 100644 --- a/fftools/ffmpeg_demux.c +++ b/fftools/ffmpeg_demux.c @@ -163,3 +163,29 @@ int init_input_threads(void) } return 0; } + +int ifile_get_packet(InputFile *f, AVPacket **pkt) +{ + if (f->readrate || f->rate_emu) { + int i; + int64_t file_start = copy_ts * ( + (f->ctx->start_time != AV_NOPTS_VALUE ? f->ctx->start_time * !start_at_zero : 0) + + (f->start_time != AV_NOPTS_VALUE ? f->start_time : 0) + ); + float scale = f->rate_emu ? 1.0 : f->readrate; + for (i = 0; i < f->nb_streams; i++) { + InputStream *ist = input_streams[f->ist_index + i]; + int64_t stream_ts_offset, pts, now; + if (!ist->nb_packets || (ist->decoding_needed && !ist->got_output)) continue; + stream_ts_offset = FFMAX(ist->first_dts != AV_NOPTS_VALUE ? ist->first_dts : 0, file_start); + pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE); + now = (av_gettime_relative() - ist->start) * scale + stream_ts_offset; + if (pts > now) + return AVERROR(EAGAIN); + } + } + + return av_thread_message_queue_recv(f->in_thread_queue, pkt, + f->non_blocking ? + AV_THREAD_MESSAGE_NONBLOCK : 0); +} |