Dear ffmpeg developers,
I reference to the question I previously posted in the user mailing list (q.v. http://ffmpeg.org/pipermail/ffmpeg-user/2015-October/028879.html). The main problem is that when I try to stream a HEVC video bitstream with FFMPEG in the rtp_mpegts format it is always encapsuled in a MP4 container. Further more on capturing the network traffic I can regenerate a TS file which consists of the same DTS and PTS timestamps for each frame, although they should be different for P- and B-frames. Using the bitstream filter "-bsf:v hev_mp4toannexb" did not change any of these problems. Also remuxing to MOV could not solve the issue (http://ffmpeg.org/pipermail/ffmpeg-user/2015-October/028903.html). It seems like ffmpeg has timestamp problems also in HEVC (see console output beneath). Thus I started to investigate the code and wanted to ask if anybody of you works on a similar problem or is experienced with this issue? I could find the method "guess_correct_pts" in the "libavcodec/utils.c" and analyze a bit its influence. Is there a documentation or something similar provided to get better into the code? It would help me a lot to get a bit through all these different data structures and their dependencies. Thanks in advance! Best regards, Alex $> ffmpeg -i sintel.hevc -c:v copy -f rtp_mpegts rtp://127.0.0.1:1234 ffmpeg version N-76159-gda43e9e Copyright (c) 2000-2015 the FFmpeg developers built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04) configuration: --prefix=/home/alexanderdethof/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/home/alexanderdethof/ffmpeg_build/include --extra-ldflags=-L/home/alexanderdethof/ffmpeg_build/lib --bindir=/home/alexanderdethof/bin --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-nonfree libavutil 55. 4.100 / 55. 4.100 libavcodec 57. 8.100 / 57. 8.100 libavformat 57. 10.101 / 57. 10.101 libavdevice 57. 0.100 / 57. 0.100 libavfilter 6. 12.100 / 6. 12.100 libswscale 4. 0.100 / 4. 0.100 libswresample 2. 0.100 / 2. 0.100 libpostproc 54. 0.100 / 54. 0.100 Input #0, hevc, from 'sintel.hevc': Duration: N/A, bitrate: N/A Stream #0:0: Video: hevc (Main), yuv420p(tv), 1920x1080, 24 fps, 24 tbr, 1200k tbn, 24 tbc Output #0, rtp_mpegts, to 'rtp://127.0.0.1:1234': Metadata: encoder : Lavf57.10.101 Stream #0:0: Video: hevc, yuv420p, 1920x1080, q=2-31, 24 fps, 24 tbr, 90k tbn, 24 tbc Stream mapping: Stream #0:0 -> #0:0 (copy) Press [q] to stop, [?] for help [mpegts @ 0x35cc680] first pts value must be set av_interleaved_write_frame(): Invalid data found when processing input frame= 1 fps=0.0 q=-1.0 Lsize= 0kB time=00:00:00.00 bitrate=N/A video:55kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown Conversion failed! _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel