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• ffmpeg usage to encode a video to H264 codec format

  20 août 2015, par goldenmean

  I have a *.mp4 video file(MPEG4 video codec) and I am trying to convert this to a H264 video codec format(raw h.264 format) using ffmpeg on Linux(Version - FFmpeg version SVN-r0.5.1-4:0.5.1-1ubuntu1, Copyright (c) 2000-2009 Fabrice Bellard,) using command line as shown below,

  ffmpeg -i input .mp4 output.h264 

  but I get an error saying -

  Unsupported codec for output stream #0.0

  Then when i try this option :

  ffmpeg -i input .mp4 -formats h264 output.h264 

  it still does not work, and gives -

  Seems stream 0 codec frame rate differs from container frame rate: 59.94 (5994/100) -> 29.97 (30000/1001)
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Rapture.mp4':
  
    Duration: 00:02:06.44, start: 0.000000, bitrate: 26574 kb/s
  
      Stream #0.0(eng): Video: h264, yuv420p, 1920x1080, 29.97 tbr, 29.97 tbn, 59.94 tbc
  
      Stream #0.1(eng): Audio: aac, 48000 Hz, stereo, s16

  And then it prints out help on the formats which we get when we do ffmpeg -formats

  When I checked the help, ffmpeg -formats, I see below information related to H264 file format and codec :

  File format : 
  
  
  
  DE h264            raw H.264 video format
  
  
  
  Codecs:
  
  
  
  D V D  h264         H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10

  My questions :

  1. How can I convert the video to a H264 encoded video (raw H264 video format)

  2. When I do ffmpeg -formats, I see many acronyms for the codecs supported, I see many acronyms before the codec name/type such as - D V D S E A, what do they stand for ?

  3. How to use the ffmpeg options -vcodec and -formats ?

• Unable to execute CLI commands through PHP

  13 janvier 2012, par user940154

  OS : ubuntu 11.10
  Webserver : Apache
  Code : PHP
  I am trying to display the output of command "ffmpeg -i " on the webpage using php.
  Required : The webpage should show the information about video (text).
  Whats happening : The webpage shows no text output on running the php code.
  If I was however doing system("ls") the code runs fine and outputs the list of files.
  Here's my code

  <?php
  
   echo "Details of video file:";
  
   system('ffmpeg -i /home/atish/Videos/T2V0040006_Angled_ride_720x576i_FLDCMB.avi');
  
  ?>

  The same command works fine on my shell, and my system has ffmpeg installed. Here's a snapshot of executing this command directly on shell :

  ThinkPad-T420:~/Videos$ ffmpeg -i /home/xx/Videos/T2V0040006_Angled_ride_720x576i_FLDCMB.avi
  
  ffmpeg version git-2012-01-10-7e2ba2d Copyright (c) 2000-2012 the FFmpeg developers
  
  built on Jan 10 2012 12:01:19 with gcc 4.6.1
  
  configuration: --enable-gpl --enable-libfaac --enable-libmp3lame --enable-libopencore-    amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libx264 --enable-nonfree --enable-postproc --enable-version3 --enable-x11grab
  
    libavutil      51. 34.100 / 51. 34.100
  
    libavcodec     53. 54.100 / 53. 54.100
  
    libavformat    53. 29.100 / 53. 29.100
  
    libavdevice    53.  4.100 / 53.  4.100
  
    libavfilter     2. 58.100 /  2. 58.100
  
    libswscale      2.  1.100 /  2.  1.100
  
    libswresample   0.  6.100 /  0.  6.100
  
    libpostproc    51.  2.100 / 51.  2.100
  
    Input #0, avi, from '/home/atish/Videos/T2V0040006_Angled_ride_720x576i_FLDCMB.avi':
  
    Metadata:
  
    encoder         : Lavf52.23.1
  
    Duration: 00:00:29.00, start: 0.000000, bitrate: 124422 kb/s
  
    Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 720x576, 25 tbr, 25 tbn, 25 tbc
  
    At least one output file must be specified

  I have tried appending "DISPLAY=:0" to my command and also done "xhost +" before running php code, but nothing is helping me out.

  Thanks.

• i use vitamio-ffmpeg achieve filters function,who can help me to see [on hold]

  30 décembre 2015, par 陈腾明

  my cmd is :
  ffmpeg -y -i /storage/emulated/0/Foream/a.mp4 -i /storage/emulated/0/Foream/q.jpg -filter_complex [0:v][1:v]overlay=main_w-overlay_w-10:main_h-overlay_h-10[out] -map [out] -map 0:a -codec:a copy /storage/test.mp4

  • ffmpeg version 2.0 Copyright (c) 2000-2013 the FFmpeg developers

    built on Dec 30 2015 17:40:40 with gcc 4.8 (GCC)
    
    configuration: --arch=arm --disable-runtime-cpudetect    --target-os=linux --enable-cross-compile --cross-prefix=arm-linux-androideabi- --enable-version3 --enable-optimizations --enable-shared --disable-fast-unaligned --disable-static --disable-symver --disable-programs --disable-doc --disable-avdevice --disable-postproc --disable-encoders --disable-muxers --enable-muxer=mp4 --disable-devices --disable-demuxer=sbg --disable-demuxer=dts --disable-parser=dca --disable-decoder=dca --disable-decoder=svq3 --disable-debug --enable-network --enable-asm --prefix=/var/vitamio/FFmpeg-Vitamio-vitamio/build/android/armv6 --extra-cflags='-mthumb -std=c99 -O3 -Wall -pipe -fpic -fasm -finline-limit=300 -ffast-math -fstrict-aliasing -Werror=strict-aliasing -Wno-psabi -Wa,--noexecstack -fdiagnostics-color=always -DANDROID -DNDEBUG -I/var/openssl/OpenSSL-Vitamio-master/include -D__ARM_ARCH_5__ -D__ARM_ARCH_5E__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5TE__ -march=armv6 -msoft-float' --extra-ldflags='-lm -lz -Wl,--no-undefined -Wl,-z,no   WARNING: library configuration mismatch
    
    avutil      configuration: --arch=arm --disable-runtime-cpudetect    --target-os=linux --cross-prefix=arm-linux-androideabi- --enable-cross-compile --enable-version3 --enable-shared --disable-static --disable-symver --disable-programs --disable-doc --disable-avdevice --disable-encoders --disable-muxers --disable-devices --disable-everything --disable-protocols --disable-demuxers --disable-decoders --disable-bsfs --disable-debug --enable-optimizations --enable-filters --enable-parsers --disable-parser=hevc --enable-swscale --enable-network --enable-protocol=file --enable-protocol=http --enable-protocol=rtmp --enable-protocol=rtp --enable-protocol=mmst --enable-protocol=mmsh --enable-protocol=crypto --enable-protocol=hls --enable-demuxer=hls --enable-demuxer=mpegts --enable-demuxer=mpegtsraw --enable-demuxer=mpegvideo --enable-demuxer=concat --enable-demuxer=mov --enable-demuxer=flv --enable-demuxer=rtsp --enable-demuxer=mp3 --enable-demuxer=matroska --enable-decoder=mpeg4 --enable-decoder=mpegvideo --enable-de   avcodec     configuration: --arch=arm --disable-runtime-cpudetect

    —target-os=linux —cross-prefix=arm-linux-androideabi- —enable-cross-compile —enable-version3 —enable-shared —disable-static —disable-symver —disable-programs —disable-doc —disable-avdevice —disable-encoders —disable-muxers —disable-devices —disable-everything —disable-protocols —disable-demuxers —disable-decoders —disable-bsfs —disable-debug —enable-optimizations —enable-filters —enable-parsers —disable-parser=hevc —enable-swscale —enable-network —enable-protocol=file —enable-protocol=http —enable-protocol=rtmp —enable-protocol=rtp —enable-protocol=mmst —enable-protocol=mmsh —enable-protocol=crypto —enable-protocol=hls —enable-demuxer=hls —enable-demuxer=mpegts —enable-demuxer=mpegtsraw —enable-demuxer=mpegvideo —enable-demuxer=concat —enable-demuxer=mov —enable-demuxer=flv —enable-demuxer=rtsp —enable-demuxer=mp3 —enable-demuxer=matroska —enable-decoder=mpeg4 —enable-decoder=mpegvideo —enable-de avformat configuration : —arch=arm —disable-runtime-cpudetect
    — target-os=linux —cross-prefix=arm-linux-androideabi- —enable-cross-compile —enable-version3 —enable-shared —disable-static —disable-symver —disable-programs —disable-doc —disable-avdevice —disable-encoders —disable-muxers —disable-devices —disable-everything —disable-protocols —disable-demuxers —disable-decoders —disable-bsfs —disable-debug —enable-optimizations —enable-filters —enable-parsers —disable-parser=hevc —enable-swscale —enable-network —enable-protocol=file —enable-protocol=http —enable-protocol=rtmp —enable-protocol=rtp —enable-protocol=mmst —enable-protocol=mmsh —enable-protocol=crypto —enable-protocol=hls —enable-demuxer=hls —enable-demuxer=mpegts —enable-demuxer=mpegtsraw —enable-demuxer=mpegvideo —enable-demuxer=concat —enable-demuxer=mov —enable-demuxer=flv —enable-demuxer=rtsp —enable-demuxer=mp3 —enable-demuxer=matroska —enable-decoder=mpeg4 —enable-decoder=mpegvideo —enable-de avfilter configuration : —arch=arm —disable-runtime-cpudetect
    — target-os=linux —cross-prefix=arm-linux-androideabi- —enable-cross-compile —enable-version3 —enable-shared —disable-static —disable-symver —disable-programs —disable-doc —disable-avdevice —disable-encoders —disable-muxers —disable-devices —disable-everything —disable-protocols —disable-demuxers —disable-decoders —disable-bsfs —disable-debug —enable-optimizations —enable-filters —enable-parsers —disable-parser=hevc —enable-swscale —enable-network —enable-protocol=file —enable-protocol=http —enable-protocol=rtmp —enable-protocol=rtp —enable-protocol=mmst —enable-protocol=mmsh —enable-protocol=crypto —enable-protocol=hls —enable-demuxer=hls —enable-demuxer=mpegts —enable-demuxer=mpegtsraw —enable-demuxer=mpegvideo —enable-demuxer=concat —enable-demuxer=mov —enable-demuxer=flv —enable-demuxer=rtsp —enable-demuxer=mp3 —enable-demuxer=matroska —enable-decoder=mpeg4 —enable-decoder=mpegvideo —enable-de swscale configuration : —arch=arm —disable-runtime-cpudetect
    — target-os=linux —cross-prefix=arm-linux-androideabi- —enable-cross-compile —enable-version3 —enable-shared —disable-static —disable-symver —disable-programs —disable-doc —disable-avdevice —disable-encoders —disable-muxers —disable-devices —disable-everything —disable-protocols —disable-demuxers —disable-decoders —disable-bsfs —disable-debug —enable-optimizations —enable-filters —enable-parsers —disable-parser=hevc —enable-swscale —enable-network —enable-protocol=file —enable-protocol=http —enable-protocol=rtmp —enable-protocol=rtp —enable-protocol=mmst —enable-protocol=mmsh —enable-protocol=crypto —enable-protocol=hls —enable-demuxer=hls —enable-demuxer=mpegts —enable-demuxer=mpegtsraw —enable-demuxer=mpegvideo —enable-demuxer=concat —enable-demuxer=mov —enable-demuxer=flv —enable-demuxer=rtsp —enable-demuxer=mp3 —enable-demuxer=matroska —enable-decoder=mpeg4 —enable-decoder=mpegvideo —enable-de swresample configuration : —arch=arm —disable-runtime-cpudetect
    — target-os=linux —cross-prefix=arm-linux-androideabi- —enable-cross-compile —enable-version3 —enable-shared —disable-static —disable-symver —disable-programs —disable-doc —disable-avdevice —disable-encoders —disable-muxers —disable-devices —disable-everything —disable-protocols —disable-demuxers —disable-decoders —disable-bsfs —disable-debug —enable-optimizations —enable-filters —enable-parsers —disable-parser=hevc —enable-swscale —enable-network —enable-protocol=file —enable-protocol=http —enable-protocol=rtmp —enable-protocol=rtp —enable-protocol=mmst —enable-protocol=mmsh —enable-protocol=crypto —enable-protocol=hls —enable-demuxer=hls —enable-demuxer=mpegts —enable-demuxer=mpegtsraw —enable-demuxer=mpegvideo —enable-demuxer=concat —enable-demuxer=mov —enable-demuxer=flv —enable-demuxer=rtsp —enable-demuxer=mp3 —enable-demuxer=matroska —enable-decoder=mpeg4 —enable-decoder=mpegvideo —enable-de libavutil 52. 48.100 / 52. 48.100
    libavcodec 55. 39.100 / 55. 39.100
    libavformat 55. 19.104 / 55. 19.104
    libavfilter 3. 90.100 / 3. 90.100
    libswscale 2. 5.101 / 2. 5.101
    libswresample 0. 17.104 / 0. 17.104
    Splitting the commandline.
    Reading option ’-y’ ... matched as option ’y’ (overwrite output files) with argument ’1’.
    Reading option ’-i’ ... matched as input file with argument ’/storage/emulated/0/Foream/a.mp4’.
    Reading option ’-i’ ... matched as input file with argument ’/storage/emulated/0/Foream/q.jpg’.
    Reading option ’-filter_complex’ ... matched as option ’filter_complex’ (create a complex filtergraph) with argument
    ’[0:v][1:v]overlay=main_w-overlay_w-10:main_h-overlay_h-10[out]’.
    Reading option ’-map’ ... matched as option ’map’ (set input stream mapping) with argument ’[out]’.
    Reading option ’-map’ ... matched as option ’map’ (set input stream mapping) with argument ’0:a’.
    Reading option ’-codec:a’ ... matched as option ’codec’ (codec name) with argument ’copy’.
    Reading option ’/storage/emulated/0/Foream/test.mp4’ ... matched as output file.
    Finished splitting the commandline.
    Parsing a group of options : global .
    Applying option y (overwrite output files) with argument 1.
    Applying option filter_complex (create a complex filtergraph) with argument
    [0:v][1:v]overlay=main_w-overlay_w-10:main_h-overlay_h-10[out].
    Successfully parsed a group of options.
    Parsing a group of options : input file /storage/emulated/0/Foream/a.mp4.
    Successfully parsed a group of options.
    Opening an input file : /storage/emulated/0/Foream/a.mp4.
    [mov,mp4,m4a,3gp,3g2,mj2 @ 0xb9270990] Format mov,mp4,m4a,3gp,3g2,mj2 probed with size=2048 and score=100
    [mov,mp4,m4a,3gp,3g2,mj2 @ 0xb9270990] ISO : File Type Major Brand : mp42
    [mov,mp4,m4a,3gp,3g2,mj2 @ 0xb9270990] File position before avformat_find_stream_info() is 810040
    [mov,mp4,m4a,3gp,3g2,mj2 @ 0xb9270990] All info found
    rfps : 29.416667 0.016512
    rfps : 29.416667 0.016512
    rfps : 29.500000 0.012847
    rfps : 29.500000 0.012847
    rfps : 29.583333 0.009693
    rfps : 29.666667 0.007050
    rfps : 29.750000 0.004918
    rfps : 29.833333 0.003298
    rfps : 29.916667 0.002188
    rfps : 30.000000 0.001590
    rfps : 30.083333 0.001503
    rfps : 30.166667 0.001928
    rfps : 30.250000 0.002863
    rfps : 30.333333 0.004310
    rfps : 30.333333 0.004310
    rfps : 30.416667 0.006268
    rfps : 30.416667 0.006268
    rfps : 30.500000 0.008737
    rfps : 30.500000 0.008737
    rfps : 30.583333 0.011717
    rfps : 30.583333 0.011717
    rfps : 30.666667 0.015208
    rfps : 30.666667 0.015208
    rfps : 30.750000 0.019211
    rfps : 30.750000 0.019211
    rfps : 59.500000 0.019673
    rfps : 59.583333 0.016176
    rfps : 59.666667 0.013191
    rfps : 59.750000 0.010716
    rfps : 59.833333 0.008753
    rfps : 59.916667 0.007302
    rfps : 60.000000 0.006361
    rfps : 29.970030 0.001747
    rfps : 59.940060 0.006986
    [mov,mp4,m4a,3gp,3g2,mj2 @ 0xb9270990] File position after avformat_find_stream_info() is 1684954
    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from ’/storage/emulated/0/Foream/a.mp4’ :
    Metadata :
    major_brand : mp42

      minor_version   :  0
    
    
    
      compatible_brands:  isommp42
    
    
    
      creation_time   :  2015-11-07 12:30:11
    
    
    
      location        :     +22.5935+113.8685/
    
    
    
      location-eng    :     +22.5935+113.8685/
    
    
    
    Duration:  00:00:17.24 , start: 

    0.000000 , bitrate : 9934 kb/s

      Stream #0:0 (eng) , 21, 1/90000 : Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 1280x720, 9488 kb/s , SAR   

    65536:65536 DAR 16:9 , 29.61 fps , 30.08 tbr , 90k tbn , 50 tbc
    (default)

      Metadata:
    
    
    
    rotate          :  90
    
    
    
    
    
    creation_time   :  2015-11-07 12:30:11
    
    
    
    
    
    handler_name    :  VideoHandle
    
    
    
      Stream #0:1 (eng) , 49, 1/48000 : Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 96 kb/s  (default)
    
    
    
      Metadata:
    
    
    
    creation_time   :  2015-11-07 12:30:11
    
    
    
    
    
    handler_name    :  SoundHandle
    
    
    
      Successfully opened the file.
    
      Parsing a group of options: input file    /storage/emulated/0/Foream/q.jpg.
    
      Successfully parsed a group of options.
    
      Opening an input file: /storage/emulated/0/Foream/q.jpg.
    
      [mp3 @ 0xb924f040] Format mp3 detected only with low score of 1,    misdetection possible!
    
      [mp3 @ 0xb924f040] File position before avformat_find_stream_info()    is 0
    
      [mp3 @ 0xb9216ef0] Header missing
    
      [mp3 @ 0xb9216ef0] Header missing
    
      [mp3 @ 0xb9216ef0] Header missing
    
      [mp3 @ 0xb924f040] decoding for stream 0 failed
    
      [mp3 @ 0xb924f040] Could not find codec parameters for stream 0    (Audio: mp1, 0 channels, s16p): unspecified frame size Consider

    increasing the value for the ’analyzeduration’ and ’probesize’
    options
    [mp3 @ 0xb924f040] File position after avformat_find_stream_info() is 9590
    /storage/emulated/0/Foream/q.jpg : could not find codec parameters
    [AVIOContext @ 0xb9251990] Statistics : 9590 bytes read, 0 seeks
    [AVIOContext @ 0xb923e090] Statistics : 907698 bytes read, 1 seeks