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• Merge commit ’f4c444e17d137c786f0ed2da0e5943df505d5f9e’

  9 août 2014, par Michael Niedermayer

  Merge commit ’f4c444e17d137c786f0ed2da0e5943df505d5f9e’
  * commit ’f4c444e17d137c786f0ed2da0e5943df505d5f9e’ :
  
    Postpone API-incompatible changes until the next bump.
  Merged-by : Michael Niedermayer <michaelni@gmx.at>
  

  • [DH] libavcodec/version.h
  • [DH] libavfilter/version.h
  • [DH] libavformat/version.h
  • [DH] libavresample/version.h
  • [DH] libavutil/version.h
  • [DH] libswscale/version.h

• How can I convert .MTS file (AVCHD) to .mp4 by ffmpeg without re-encoding H264 video stream correctly ?

  2 septembre 2014, par kaorukobo

  ---

  I posted an same question to another community Video Production that I’ve found later, and which seems to be a better place for this question :

  See : http://video.stackexchange.com/questions/12156/how-can-i-convert-mts-file-avchd-to-mp4-by-ffmpeg-without-re-encoding-h264-v/

  ---

  1. What I tried

  I have some .MTS (AVCHD format) files recoreded with my AVCHD camera. Its specification is as shown below :

  $ ffprobe 140612_Canon-00000.MTS 
  
  ffprobe version 2.2.1 Copyright (c) 2007-2014 the FFmpeg developers
  
  (snip)
  
  Input #0, mpegts, from '140612_Canon-00000.MTS':
  
    Duration: 00:48:58.40, start: 0.800300, bitrate: 5563 kb/s
  
    Program 1 
  
      Stream #0:0[0x1011]: Video: h264 (High) (HDMV / 0x564D4448), 
  
        yuv420p, 1440x1080 [SAR 4:3 DAR 16:9], 
  
        29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc
  
      Stream #0:1[0x1100]: Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz, 
  
        stereo, fltp, 256 kb/s

  Pay attention to the part of framerate/timebase : 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc

  Now I’d like to convert this file to .mp4 file, without re-encoding H264 video stream, on the other hand, with transcoding its audio stream to AAC.
  So I tried the following command :

  ffmpeg -i 140612_Canon-00000.MTS -t 60 -y -vcodec copy -acodec libfaac -ab 128k 140612_Canon-00001.MTS.mp4

  2. Result

  and output file’s specification is as shown below :

  $ ffprobe 140612_Canon-00000.MTS.mp4
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '140612_Canon-00000.MTS.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf55.33.100
  
  
  
    Duration: 00:01:00.04, start: 0.021333, bitrate: 4590 kb/s
  
  
  
      Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 
  
          1440x1080 [SAR 4:3 DAR 16:9], 4448 kb/s, 
  
          59.94 fps, 59.94 tbr, 90k tbn, 59.94 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
  
  
      Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 
  
          48000 Hz, stereo, fltp, 128 kb/s (default)
  
      Metadata:
  
        handler_name    : SoundHandler

  Look at the part of framerate/timebase : 59.94 fps, 59.94 tbr, 90k tbn, 59.94 tbc.
  Although ffmpeg just copied the video stream, framerate and timebase has been changed to twice value.

  So, when I open and playback the output file with QuickTime Player or VLC Player,
  the audio has no problem, however, the video stream is not played correctly.
  The video is played back with having its frame forward and backward quiveringly repeatedly.

  3. Question

  1. How can I convert .MTS file (AVCHD) to .mp4 by ffmpeg without re-encoding H264 video stream correctly ?
  2. How can I keep the original framerate/timebase values (fps/tbr/tbn/tbc) when I convert the container with ffmpeg and its -vcodec copy switch.
  3. How can I set framerate/timebase values (fps/tbr/tbn/tbc) by ffmpeg’s command line options without re-encoding a video stream.

  Any ideas ?

• FFMPEG keeping quality when reducing FPS and streaming over RTSP with rtsp-simple-server

  25 janvier 2021, par Jens Schneider

  I'm using the rtsp-simple-server (https://github.com/aler9/rtsp-simple-server) and feed the RTSP Server with a FFMPEG stream.

  


  I use a docker compose file to start the stream :

  


  version: "3.8"

services:

  ffmpeg:
    container_name: ffmpeg-base
    restart: always
    image: "jenssgb/rtspffmpeg:base"
    depends_on:
      - rtsp-server
    volumes:
      - $PWD/:/video
    network_mode: "host"
    command: "ffmpeg -re -stream_loop -1 -i /video/footage-1-b.mp4 -c copy -f rtsp rtsp://localhost:8554/compose-rtsp"
  
  rtsp-server:
    container_name: rtsp-server-base
    restart: always
    image: "aler9/rtsp-simple-server"
    network_mode: "host"


  


  Now I'm trying to reduce the FPS of my video with transcoding it :

  


  command: -re -stream_loop -1 -i ${VIDEO_FILE} -vf "fps=${FPS_COMPOSE}" -f rtsp rtsp://localhost:8554/compose-rtsp


  


  This is basically working, but the quality of the output video becomes pretty bad. I tried a lot of things like -c:v libx264 which did help for a minute but let ffmpeg crash then.

  


  av_interleaved_write_frame(): Broken pipe0:00:09.99 bitrate=N/A speed=0.985x    
[rtsp @ 0x5563b1755640] Packets poorly interleaved, failed to avoid negative timestamp -33660 in stream 0.
Try -max_interleave_delta 0 as a possible workaround.
av_interleaved_write_frame(): Broken pipe
Error writing trailer of rtsp://localhost:8554/compose-rtsp: Broken pipe


  


  Any idea how I can reduce the FPS send the stream to the server but keep the video quality ? Later I'm going to reduce the resolution as well - but for now I want to keep resolution and quality but only reduce the FPS.

  


  Full logs from my test with -c:v libx264 :

  


      ffmpeg -re -stream_loop -1 -i footage-1-b.mp4 -vf "fps=5" -c:v libx264 -f rtsp rtsp://localhost:8554/compose-rtsp
ffmpeg version 4.2.4-1ubuntu0.1 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 9 (Ubuntu 9.3.0-10ubuntu2)
  configuration: --prefix=/usr --extra-version=1ubuntu0.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-nvenc --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
  libavutil      56. 31.100 / 56. 31.100
  libavcodec     58. 54.100 / 58. 54.100
  libavformat    58. 29.100 / 58. 29.100
  libavdevice    58.  8.100 / 58.  8.100
  libavfilter     7. 57.100 /  7. 57.100
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  5.100 /  5.  5.100
  libswresample   3.  5.100 /  3.  5.100
  libpostproc    55.  5.100 / 55.  5.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'footage-1-b.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    title           : Session streamed by "nessyMediaServer"
    encoder         : Lavf58.29.100
    comment         : h264_3
  Duration: 00:59:59.63, start: 0.000000, bitrate: 2099 kb/s
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuvj420p(pc), 1280x720 [SAR 1:1 DAR 16:9], 2061 kb/s, 24.96 fps, 25 tbr, 12800 tbn, 25 tbc (default)
    Metadata:
      handler_name    : VideoHandler
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 8000 Hz, mono, fltp, 35 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, [?] for help
[aac @ 0x56277bc7f840] Too many bits 8832.000000 > 6144 per frame requested, clamping to max
[libx264 @ 0x56277bbc33c0] using SAR=1/1
[libx264 @ 0x56277bbc33c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x56277bbc33c0] profile High, level 3.1
[libx264 @ 0x56277bbc33c0] 264 - core 155 r2917 0a84d98 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=5 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, rtsp, to 'rtsp://localhost:8554/compose-rtsp':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    title           : Session streamed by "nessyMediaServer"
    comment         : h264_3
    encoder         : Lavf58.29.100
    Stream #0:0(und): Video: h264 (libx264), yuvj420p(pc), 1280x720 [SAR 1:1 DAR 16:9], q=-1--1, 5 fps, 90k tbn, 5 tbc (default)
    Metadata:
      handler_name    : VideoHandler
      encoder         : Lavc58.54.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    Stream #0:1(und): Audio: aac (LC), 8000 Hz, mono, fltp, 48 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
      encoder         : Lavc58.54.100 aac
av_interleaved_write_frame(): Broken pipe0:00:09.87 bitrate=N/A speed=0.978x    
[rtsp @ 0x56277bba0640] Packets poorly interleaved, failed to avoid negative timestamp -33660 in stream 0.
Try -max_interleave_delta 0 as a possible workaround.
av_interleaved_write_frame(): Broken pipe
Error writing trailer of rtsp://localhost:8554/compose-rtsp: Broken pipe
frame=   50 fps=4.6 q=23.0 Lsize=N/A time=00:00:10.21 bitrate=N/A speed=0.947x    
video:162kB audio:8kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
[libx264 @ 0x56277bbc33c0] frame I:1     Avg QP:19.85  size:165667
[libx264 @ 0x56277bbc33c0] frame P:13    Avg QP:20.88  size:140481
[libx264 @ 0x56277bbc33c0] frame B:36    Avg QP:24.58  size: 55445
[libx264 @ 0x56277bbc33c0] consecutive B-frames:  4.0%  0.0%  0.0% 96.0%
[libx264 @ 0x56277bbc33c0] mb I  I16..4:  4.4% 30.8% 64.8%
[libx264 @ 0x56277bbc33c0] mb P  I16..4:  4.1% 10.6% 20.0%  P16..4: 24.4% 24.8% 13.3%  0.0%  0.0%    skip: 2.6%
[libx264 @ 0x56277bbc33c0] mb B  I16..4:  0.8%  2.0%  4.0%  B16..8: 40.3% 14.5%  5.2%  direct:11.8%  skip:21.4%  L0:77.1% L1: 7.9% BI:14.9%
[libx264 @ 0x56277bbc33c0] 8x8 transform intra:30.1% inter:11.9%
[libx264 @ 0x56277bbc33c0] coded y,uvDC,uvAC intra: 82.5% 60.9% 26.6% inter: 55.0% 42.4% 2.7%
[libx264 @ 0x56277bbc33c0] i16 v,h,dc,p: 17% 26% 34% 23%
[libx264 @ 0x56277bbc33c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 22% 33% 15%  3%  4%  5%  4%  3%  9%
[libx264 @ 0x56277bbc33c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 20% 22% 13%  3% 17% 11%  5%  3%  6%
[libx264 @ 0x56277bbc33c0] i8c dc,h,v,p: 54% 25% 16%  5%
[libx264 @ 0x56277bbc33c0] Weighted P-Frames: Y:7.7% UV:7.7%
[libx264 @ 0x56277bbc33c0] ref P L0: 33.2% 11.6% 29.0% 23.9%  2.4%
[libx264 @ 0x56277bbc33c0] ref B L0: 79.6% 11.9%  8.5%
[libx264 @ 0x56277bbc33c0] ref B L1: 95.9%  4.1%
[libx264 @ 0x56277bbc33c0] kb/s:3190.34
[aac @ 0x56277bc7f840] Qavg: 65536.000
Conversion failed!


  


  Thank you,
J