Recherche avancée

Sur d’autres sites (12372)

• Launching ffmpeg from inside my C code doesn't convert video stream from fifo

  13 mai 2017, par abraxas1

  (Beaglebone Black, ubuntu 16.04 linux 4.4.62-ti-r99)

  I have a raw h264 feed coming into my C program (into a callback from a custom API) and then I named-piped the raw h264 to a file and this CLI command converts that file successfully.

  ffmpeg -report -re -framerate 30 -y -f h264 -i orbi_0148.cam1.h264 -c:v copy -an -video_size 1920x1080 -f mp4 orbi_0148.cam1-1.mp4

  I then try to launch this command from my program with the same options using execv(),

  first mkfifo the fifo’s,

  then launch ffmpeg (shown below) starts the streaming form the cameras to my callback function, and out to the fifos.

  I close the fifos at the end of video recording, and don’t get any file created and get this output, which I don’t understand at all.
  (the successful command line output follows below this output generated from execv())
  thanks, any help much appreciated.
  hardware has come in now and the spot light is on me.

  (execv output with options -report -y -i /tmp/fifocam3.h264 -c:v copy -an -video_size 1920x1080 -f mp4 /media/sd-card/orbi_0140.cam3.mp4)

  root@arm:/home/orbi# cat ffmpeg-20170511-001941.log 
  
  ffmpeg started on 2017-05-11 at 00:19:41
  
  Report written to "ffmpeg-20170511-001941.log"
  
  Command line:
  
  /usr/bin/ffmpeg -report -y -i /tmp/fifocam3.h264 -c:v copy -an -video_size 1920x1080 -f mp4 /media/sd-card/orbi_0140.cam3.mp4
  
  ffmpeg version 2.8.11-0ubuntu0.16.04.1 Copyright (c) 2000-2017 the FFmpeg developers
  
  
  
    built with gcc 5.4.0 (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.4) 20160609
  
    configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1 --build-suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/arm-linux-gnueabihf --incdir=/usr/include/arm-linux-gnueabihf --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11gr  libavutil      54. 31.100 / 54. 31.100
  
    libavcodec     56. 60.100 / 56. 60.100
  
    libavformat    56. 40.101 / 56. 40.101
  
    libavdevice    56.  4.100 / 56.  4.100
  
    libavfilter     5. 40.101 /  5. 40.101
  
    libavresample   2.  1.  0 /  2.  1.  0
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  2.101 /  1.  2.101
  
    libpostproc    53.  3.100 / 53.  3.100
  
  Splitting the commandline.
  
  Reading option '-report' ... matched as option 'report' (generate a report) with argument '1'.
  
  Reading option '-y' ... matched as option 'y' (overwrite output files) with argument '1'.
  
  Reading option '-i' ... matched as input url with argument '/tmp/fifocam3.h264'.
  
  Reading option '-c:v' ... matched as option 'c' (codec name) with argument 'copy'.
  
  Reading option '-an' ... matched as option 'an' (disable audio) with argument '1'.
  
  Reading option '-video_size' ... matched as AVOption 'video_size' with argument '1920x1080'.
  
  Reading option '-f' ... matched as option 'f' (force format) with argument 'mp4'.
  
  Reading option '/media/sd-card/orbi_0140.cam3.mp4' ... matched as output url.
  
  Finished splitting the commandline.
  
  Parsing a group of options: global .
  
  Applying option report (generate a report) with argument 1.
  
  Applying option y (overwrite output files) with argument 1.
  
  …
  
  Successfully parsed a group of options.
  
  Parsing a group of options: input url /tmp/fifocam3.h264.
  
  …
  
  Successfully parsed a group of options.
  
  Opening an input file: /tmp/fifocam3.h264.
  
  [h264 @ 0xf249a0] Format h264 probed with size=2048 and score=51
  
  [h264 @ 0xf249a0] Before avformat_find_stream_info() pos: 0 bytes read:32768 seeks:0
  
  [h264 @ 0xf25460] Current profile doesn't provide more RBSP data in PPS, skipping
  
  [h264 @ 0xf25460] bytestream overread -4
  
  [h264 @ 0xf25460] bytestream overread -4
  
  [h264 @ 0xf25460] bytestream overread -4
  
  [h264 @ 0xf25460] bytestream overread -4
  
  [h264 @ 0xf25460] bytestream overread -10
  
  [h264 @ 0xf25460] error while decoding MB 112 28, bytestream -10
  
  [h264 @ 0xf25460] concealing 4737 DC, 4737 AC, 4737 MV errors in P frame
  
  [h264 @ 0xf25460] Frame num gap 7 5
  
  
  
  
  
  /////// successful command line run  \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
  
  root@arm:/home/orbi# ffmpeg -report -re -framerate 30 -y -f h264 -i orbi_0148.cam1.h264 -c:v copy -an -video_size 1920x1080 -f mp4 orbi_0148.cam1-1.mp4
  
  
  
  root@arm:/home/orbi# cat ffmpeg-20170511-002629.log 
  
  ffmpeg started on 2017-05-11 at 00:26:29
  
  Report written to "ffmpeg-20170511-002629.log"
  
  Command line:
  
  ffmpeg -report -re -framerate 30 -y -f h264 -i orbi_0148.cam1.h264 -c:v copy -an -video_size 1920x1080 -f mp4 orbi_0148.cam1-1.mp4
  
  ffmpeg version 2.8.11-0ubuntu0.16.04.1 Copyright (c) 2000-2017 the FFmpeg developers
  
    built with gcc 5.4.0 (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.4) 20160609
  
    configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1 --build-suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/arm-linux-gnueabihf --incdir=/usr/include/arm-linux-gnueabihf --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11gr  libavutil      54. 31.100 / 54. 31.100
  
    libavcodec     56. 60.100 / 56. 60.100
  
    libavformat    56. 40.101 / 56. 40.101
  
    libavdevice    56.  4.100 / 56.  4.100
  
    libavfilter     5. 40.101 /  5. 40.101
  
    libavresample   2.  1.  0 /  2.  1.  0
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  2.101 /  1.  2.101
  
    libpostproc    53.  3.100 / 53.  3.100
  
  Splitting the commandline.
  
  Reading option '-report' ... matched as option 'report' (generate a report) with argument '1'.
  
  Reading option '-re' ... matched as option 're' (read input at native frame rate) with argument '1'.
  
  Reading option '-framerate' ... matched as AVOption 'framerate' with argument '30'.
  
  Reading option '-y' ... matched as option 'y' (overwrite output files) with argument '1'.
  
  Reading option '-f' ... matched as option 'f' (force format) with argument 'h264'.
  
  Reading option '-i' ... matched as input url with argument 'orbi_0148.cam1.h264'.
  
  Reading option '-c:v' ... matched as option 'c' (codec name) with argument 'copy'.
  
  Reading option '-an' ... matched as option 'an' (disable audio) with argument '1'.
  
  Reading option '-video_size' ... matched as AVOption 'video_size' with argument '1920x1080'.
  
  Reading option '-f' ... matched as option 'f' (force format) with argument 'mp4'.
  
  Reading option 'orbi_0148.cam1-1.mp4' ... matched as output url.
  
  Finished splitting the commandline.
  
  Parsing a group of options: global .
  
  Applying option report (generate a report) with argument 1.
  
  Applying option y (overwrite output files) with argument 1.
  
  …
  
  Successfully parsed a group of options.
  
  Parsing a group of options: input url orbi_0148.cam1.h264.
  
  Applying option re (read input at native frame rate) with argument 1.
  
  Applying option f (force format) with argument h264.
  
  …
  
  Successfully parsed a group of options.
  
  Opening an input file: orbi_0148.cam1.h264.
  
  [h264 @ 0x848a20] Before avformat_find_stream_info() pos: 0 bytes read:32768 seeks:0
  
  [h264 @ 0x8515b0] Current profile doesn't provide more RBSP data in PPS, skipping
  
  [h264 @ 0x8515b0] Current profile doesn't provide more RBSP data in PPS, skipping
  
  [h264 @ 0x848a20] max_analyze_duration 5000000 reached at 5005000 microseconds st:0
  
  [h264 @ 0x848a20] After avformat_find_stream_info() pos: 3773440 bytes read:3801088 seeks:0 frames:152
  
  Input #0, h264, from 'orbi_0148.cam1.h264':
  
    Duration: N/A, bitrate: N/A
  
      Stream #0:0, 152, 1/1200000: Video: h264 (Main), yuv420p(tv), 1920x1080, 29.97 fps, 29.97 tbr, 1200k tbn, 59.94 tbc
  
  Successfully opened the file.
  
  Parsing a group of options: output url orbi_0148.cam1-1.mp4.
  
  …
  
  Applying option c:v (codec name) with argument copy.
  
  Applying option an (disable audio) with argument 1.
  
  Applying option f (force format) with argument mp4.
  
  Successfully parsed a group of options.
  
  Opening an output file: orbi_0148.cam1-1.mp4.
  
  Successfully opened the file.
  
  [mp4 @ 0x8fb230] Codec for stream 0 does not use global headers but container format requires global headers
  
  Output #0, mp4, to 'orbi_0148.cam1-1.mp4':
  
    Metadata:
  
      encoder         : Lavf56.40.101
  
      Stream #0:0, 0, 1/1200000: Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 1920x1080, q=2-31, 29.97 fps, 29.97 tbr, 1200k tbn, 1200k tbc
  
  …
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (copy)
  
  Press [q] to stop, [?] for help
  
  [NULL @ 0x8515b0] Current profile doesn't provide more RBSP data in PPS, skipping    
  
  No more output streams to write to, finishing.e=00:00:08.64 bitrate=5887.7kbits/s    
  
  frame=  270 fps= 30 q=-1.0 Lsize=    6443kB time=00:00:08.97 bitrate=5880.6kbits/s    
  
  video:6440kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.056839%
  
  Input file #0 (orbi_0148.cam1.h264):
  
    Input stream #0:0 (video): 270 packets read (6594052 bytes); 
  
    Total: 270 packets (6594052 bytes) demuxed
  
  Output file #0 (orbi_0148.cam1-1.mp4):
  
    Output stream #0:0 (video): 270 packets muxed (6594052 bytes); 
  
    Total: 270 packets (6594052 bytes) muxed
  
  0 frames successfully decoded, 0 decoding errors
  
  [AVIOContext @ 0x931650] Statistics: 34 seeks, 308 writeouts
  
  [AVIOContext @ 0x851190] Statistics: 6594052 bytes read, 0 seeks

• ffmpeg audio conversion distorted - half rate

  6 novembre 2013, par user1688971

  I'm trying to convert an asf audio to mp3 using ffmpeg.
  But I have one specific audio that gets distorted in the middle and starts like if the person was talking in slow motion (at half rate).

  The command I'm using is :

  ffmpeg - i input.asf -ac 2 output.mp3

  I've tried a lot of options, but about the middle of the audio is when it fails.
  The raw file sounds good, so it's not the recording. It is af in the middle of the transmission the frame rate went down for some reason.

  Thanks all !

  [EDIT]

  I'm adding the console response after running the command as a suggestion from LordNeckbeard :

  [root@mynasserver home]# ffmpeg -i recording-8532-1.asf -ac 2 -ab 64k -ar 44100 recording-8532-ac2-ar44100.mp3
  
  FFmpeg version 0.6.5, Copyright (c) 2000-2010 the FFmpeg developers
  
  built on Jan 29 2012 23:56:18 with gcc 4.1.2 20080704 (Red Hat 4.1.2-51)
  
  configuration: --prefix=/usr --libdir=/usr/lib --shlibdir=/usr/lib --mandir=/usr/share/man --incdir=/usr/include --disable-avisynth --extra-cflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m32 -march=i386 -mtune=generic -fasynchronous-unwind-tables' --enable-avfilter --enable-avfilter-lavf --enable-libdirac --enable-libfaac --enable-libfaad --enable-libfaadbin --enable-libgsm --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libx264 --enable-gpl --enable-nonfree --enable-postproc --enable-pthreads --enable-shared --enable-swscale --enable-vdpau --enable-version3 --enable-x11grab
  
  libavutil     50.15. 1 / 50.15. 1
  
  libavcodec    52.72. 2 / 52.72. 2
  
  libavformat   52.64. 2 / 52.64. 2
  
  libavdevice   52. 2. 0 / 52. 2. 0
  
  libavfilter    1.19. 0 /  1.19. 0
  
  libswscale     0.11. 0 /  0.11. 0
  
  libpostproc   51. 2. 0 / 51. 2. 0
  
  [flv @ 0x86a4850]max_analyze_duration reached
  
  [flv @ 0x86a4850]Estimating duration from bitrate, this may be inaccurate
  
  Input #0, flv, from 'recording-8532-1.asf':
  
  Metadata:
  
  source          : STW MediaProxy v3.3.7.19894
  
  Duration: 04:00:08.49, start: 0.000000, bitrate: N/A
  
  Stream #0.0: Audio: aac, 44100 Hz, 2 channels (FC), s16
  
  Output #0, mp3, to 'recording-8532-ac2-ar44100.mp3':
  
  Metadata:
  
  TSSE            : Lavf52.64.2
  
  Stream #0.0: Audio: libmp3lame, 44100 Hz, 2 channels, s16, 64 kb/s
  
  Stream mapping:
  
  Stream #0.0 -> #0.0
  
  Press [q] to stop encoding
  
  size=  150906kB time=19315.93 bitrate=  64.0kbits/s    
  
  video:0kB audio:150906kB global headers:0kB muxing overhead 0.000021%

  So from the data above, you can see the input file is about 4hrs. The output ends up being around 5 hrs 20 mins.

• How can I compress or change the resolution of the video very fast with FFmpeg ?

  28 mai 2017, par Rares

  I would like to compress or change the resolution of the video before sending it to server but I don’t want to take too long. For example for the following code a video with size 100MB it takes 2-3 min to resize it to 10MB. Can I do it faster without losing too much quality ?

               String[] command = {"-i", filePath, "-vf", "scale=640:360", "-c:a", "copy", "-preset", "ultrafast", dest.getAbsolutePath()};

  Console output for above command :

      05-28 11:50:22.131 23323-23323/com.example.rares.peoplecounterapp D/TestFFmpeg: SUCCESS with output : ffmpeg version n3.0.1 Copyright (c) 2000-2016 the FFmpeg developers
  
                                                                                    built with gcc 4.8 (GCC)
  
                                                                                    configuration: --target-os=linux --cross-prefix=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-libmp3lame --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/vagrant/SourceCode/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/vagrant/SourceCode/ffmpeg-android/build/armeabi-v7a --extra-cflags='-I/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all' --extra-ldflags='-L/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
  
                                                                                    libavutil      55. 17.103 / 55. 17.103
  
                                                                                    libavcodec     57. 24.102 / 57. 24.102
  
                                                                                    libavformat    57. 25.100 / 57. 25.100
  
                                                                                    libavdevice    57.  0.101 / 57.  0.101
  
                                                                                    libavfilter     6. 31.100 /  6. 31.100
  
                                                                                    libswscale      4.  0.100 /  4.  0.100
  
                                                                                    libswresample   2.  0.101 /  2.  0.101
  
                                                                                    libpostproc    54.  0.100 / 54.  0.100
  
                                                                                  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/DCIM/Camera/20170501_212606.mp4':
  
                                                                                    Metadata:
  
                                                                                      major_brand     : mp42
  
                                                                                      minor_version   : 0
  
                                                                                      compatible_brands: isommp42
  
                                                                                      creation_time   : 2017-05-01 18:26:46
  
                                                                                      com.android.version: 6.0
  
                                                                                    Duration: 00:00:38.70, start: 0.000000, bitrate: 17203 kb/s
  
                                                                                      Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080, 17007 kb/s, SAR 1:1 DAR 16:9, 29.98 fps, 29.92 tbr, 90k tbn, 180k tbc (default)
  
                                                                                      Metadata:
  
                                                                                        creation_time   : 2017-05-01 18:26:46
  
                                                                                        handler_name    : VideoHandle
  
                                                                                      Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 155 kb/s (default)
  
                                                                                      Metadata:
  
                                                                                        creation_time   : 2017-05-01 18:26:46
  
                                                                                        handler_name    : SoundHandle
  
                                                                                  [libx264 @ 0xf7344400] using SAR=1/1
  
                                                                                  [libx264 @ 0xf7344400] using cpu capabilities: none!
  
                                                                                  [libx264 @ 0xf7344400] profile Constrained Baseline, level 3.0
  
                                                                                  [libx264 @ 0xf7344400] 264 - core 148 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=9 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=25 scenecut=0 intra_refresh=0 rc=crf mbtree=0 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=0
  
                                                                                  Output #0, mp4, to '/storage/emulated/0/DCIM/Camera/20170501_212606_compressed97.mp4':
  
                                                                                    Metadata:
  
                                                                                      major_brand     : mp42
  
                                                                                      minor_version   : 0
  
                                                                                      compatible_brands: isommp42
  
                                                                                      com.android.version: 6.0
  
                                                                                      encoder         : Lavf57.25.100
  
                                                                                      Stream #0:0(eng): Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 640x360 [SAR 1:1 DAR 16:9], q=-1--1, 29.92 fps, 11488 tbn, 29.92 tbc (default)
  
                                                                                      Metadata:
  
                                                                                        creation_time   : 2017-05-01 18:26:46
  
                                                                                        handler_name    : VideoHandle
  
                                                                                        encoder         : Lavc57.24.102 libx264
  
                                                                                      Side data:
  
                                                                                        unknown side data type 10 (24 bytes)
  
                                                                                      Stream #0:1(eng): Audio: aac (LC) ([64][0][0][0] / 0x0040), 48000 Hz, stereo, 155 kb/s (default)
  
                                                                                      Metadata:
  
                                                                                        creation_time   : 2017-05-01 18:26:46
  
                                                                                        handler_name    : SoundHandle
  
                                                                                  Stream mapping:
  
                                                                                    Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  
                                                                                    Stream #0:1 -> #0:1 (copy)
  
                                                                                  Press [q] to stop, [?] for help
  
                                                                                  frame=    6 fps=0.0 q=0.0 size=       0kB time=00:00:01.04 bitrate=   0.4kbits/s speed=1.96x    
  
                                                                                  frame=   15 fps=
  
  05-28 11:50:22.132 23323-23323/com.example.rares.peoplecounterapp D/TestFFmpeg: Finished command :ffmpeg [Ljava.lang.String;@d8854f