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• ffmpeg unrecognized option 'segment_list_flags'

  28 septembre 2012, par user1704620

  this is my first time ever posting a question on here, so bear with me. I'm using Ubuntu 12.04 and ffmpeg version 0.11.2, and I'm trying to capture a video from /dev/video0, segment the videos, and then create an m3u8 list file that lists all the segments. According to the ffmpeg documentation at http://ffmpeg.org/ffmpeg.html#Synopsis , ffmpeg supports certain options when creating a list file like '-segment_list_flags' and '-segment_list_type'. When I tried implementing these into my script, though, I just got an error that said :"unrecognized option 'segment_list_flags'" or "unrecognized option 'segment_list_type'". The actual command that I'm typing in looks like this :

    ffmpeg -f video4linux2 -s wvga -t ${CAPTURE_DURATION} -i "/dev/video0" \ 
  
    -vcodec ${VID_CODEC} -b:v 96k -flags +loop -cmp +chroma \
  
    -partitions +parti4x4+partp8x8+partb8x8 -subq 5 -trellis 1 -refs 1 -coder 0 \
  
    -me_range 16 -keyint_min 25 -sc_threshold 40 -map 0 -flags -global_header \
  
    -i_qfactor 0.71 -bt 200k -maxrate 96k -bufsize 96k -rc_eq 'blurCplx^(1-qComp)' \
  
    -qcomp 0.6 -qmin 10 -qmax 51 -qdiff 4 -level 30 -aspect 320:240 -g 30 \
  
    -async 2 -preset fast -crf 22 -threads 0 -sameq -f segment -segment_time ${SEG_TIME} \
  
    -segment_list ${LOCATE}${OUTPUT}_first.m3u8 -segment_list_flags +live \
  
    -segment_list_size ${SEG_LIST_SIZE} -segment_format ${SEG_FORMAT} -acodec libmp3lame \
  
    -ar 4800 -ab 64k -y "${LOCATE}${OUTPUT}%01d.${EXTENSION}"

  In other parts of my script, I obviously have those variables that you see defined, and they all work fine. I should mention that before I tried implementing the -segment_list_flags option, it did spit out a list file, but it wasn't a legal .m3u8 list file that I would need for Http Live Streaming. It just sequentially listed the different $LOCATE$OUPUT segments that I told it to create.

  The full output of my command in the terminal is this :

  ffmpeg version 0.11.2 Copyright (c) 2000-2012 the FFmpeg developers
  
    built on Sep 27 2012 13:32:44 with gcc 4.6.3
  
    configuration: --enable-gpl --enable-gray --enable-runtime-cpudetect --enable-bzlib --enable-gnutls --enable-libass --enable-libcelt --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libcdio --enable-libdc1394 --enable-libfaac --enable-libfreetype --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libnut --enable-libopenjpeg --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libv4l2 --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid --enable-openal --enable-openssl --enable-zlib --enable-nonfree --enable-version3 --enable-x11grab
  
  
  
    libavutil      51. 54.100 / 51. 54.100
  
    libavcodec     54. 23.100 / 54. 23.100
  
    libavformat    54.  6.100 / 54.  6.100
  
    libavdevice    54.  0.100 / 54.  0.100
  
    libavfilter     2. 77.100 /  2. 77.100
  
    libswscale      2.  1.100 /  2.  1.100
  
    libswresample   0. 15.100 /  0. 15.100
  
    libpostproc    52.  0.100 / 52.  0.100
  
  
  
  [video4linux2,v4l2 @ 0x30e1e80] The V4L2 driver changed the video from 852x480 to 640x480
  
  [video4linux2,v4l2 @ 0x30e1e80] Estimating duration from bitrate, this may be inaccurate
  
  Input #0, video4linux2,v4l2, from '/dev/video0':
  
    Duration: N/A, start: 10590.729975, bitrate: 110592 kb/s
  
      Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 640x480, 110592 kb/s, 30 tbr, 1000k tbn, 30 tbc
  
  Unrecognized option 'segment_list_flags'
  
  Failed to set value '+live' for option 'segment_list_flags'

  If any one knows why it's giving me this error, I'd really appreciate if you could help out. Maybe I don't have some option enabled from the ./configure ?

• Bad quality output with FFmpeg, bitrate specified [closed]

  28 septembre 2012, par Darkman2412

  I have a static background image where I add 2 videos on top of it using FFmpeg CLI. The output file (test.avi in this case), is very bad quality.

  ffmpeg -loop 1 -i outro.png
  
        -vf "movie='intro.mov' [last], [last]scale=512:288[scaled1], [in][scaled1] overlay=290:396 [tmp];
  
             movie='intro2.mov' [featured], [featured]scale=512:288[scaled2], [tmp][scaled2] overlay=1118:396 [out]" -b 512k -t 10 -r 30 -y test.avi

  The first image is the first frame of test.avi.
  The second one is what it should be.

  

  

  Edit : my question is why it's such bad quality.

  Edit2 : Console output :

  ffmpeg version N-44601-gcb3591e Copyright (c) 2000-2012 the FFmpeg developers
  
    built on Sep 19 2012 16:31:43 with gcc 4.7.1 (GCC)
  
    configuration: --enable-gpl --enable-version3 --disable-pthreads --enable-runtime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-libass --enable-libcelt --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-libnut --enable-libopenjpeg --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libutvideo --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
  
    libavutil      51. 73.101 / 51. 73.101
  
    libavcodec     54. 56.100 / 54. 56.100
  
    libavformat    54. 27.101 / 54. 27.101
  
    libavdevice    54.  2.100 / 54.  2.100
  
    libavfilter     3. 16.104 /  3. 16.104
  
    libswscale      2.  1.101 /  2.  1.101
  
    libswresample   0. 15.100 /  0. 15.100
  
    libpostproc    52.  0.100 / 52.  0.100
  
  [image2 @ 0000000001f4fa40] Stream #0: not enough frames to estimate rate; consider increasing probesize
  
  Input #0, image2, from 'outro.png':
  
    Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
  
      Stream #0:0: Video: png, rgba64be, 1920x1080, 25 tbr, 25 tbn, 25 tbc
  
  Please use -q:a or -q:v, -qscale is ambiguous
  
  Output #0, avi, to 'test.avi':
  
    Metadata:
  
      ISFT            : Lavf54.27.101
  
      Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 1920x1080, q=2-31, 200 kb/s, 30 tbn, 30 tbc
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (png -> mpeg4)
  
  Press [q] to stop, [?] for help
  
  frame=    6 fps=0.0 q=2.0 size=      72kB time=00:00:00.23 bitrate=2527.9kbits/s    
  
  frame=   12 fps= 11 q=2.0 size=     115kB time=00:00:00.46 bitrate=2013.6kbits/s    
  
  frame=   18 fps= 11 q=2.0 size=     190kB time=00:00:00.70 bitrate=2223.8kbits/s    
  
  frame=   24 fps= 11 q=2.0 size=     235kB time=00:00:00.96 bitrate=1987.4kbits/s    
  
  frame=   30 fps= 11 q=2.0 size=     314kB time=00:00:01.20 bitrate=2142.8kbits/s    
  
  frame=   36 fps= 11 q=2.0 size=     368kB time=00:00:01.43 bitrate=2102.2kbits/s    
  
  frame=   42 fps= 11 q=2.0 size=     457kB time=00:00:01.66 bitrate=2247.6kbits/s    
  
  frame=   48 fps= 11 q=2.0 size=     510kB time=00:00:01.90 bitrate=2199.8kbits/s    
  
  frame=   54 fps= 11 q=2.0 size=     596kB time=00:00:02.16 bitrate=2253.9kbits/s    
  
  frame=   60 fps= 11 q=2.0 size=     649kB time=00:00:02.40 bitrate=2216.5kbits/s    
  
  frame=   66 fps= 11 q=2.0 size=     718kB time=00:00:02.63 bitrate=2232.9kbits/s    
  
  frame=   72 fps= 11 q=2.0 size=     779kB time=00:00:02.86 bitrate=2226.4kbits/s    
  
  frame=   78 fps= 11 q=2.0 size=     868kB time=00:00:03.10 bitrate=2293.0kbits/s    
  
  frame=   84 fps= 11 q=2.0 size=     956kB time=00:00:03.36 bitrate=2325.8kbits/s    
  
  frame=   90 fps= 11 q=2.0 size=    1049kB time=00:00:03.60 bitrate=2386.2kbits/s    
  
  frame=   96 fps= 11 q=2.0 size=    1143kB time=00:00:03.83 bitrate=2442.9kbits/s    
  
  frame=  101 fps= 11 q=2.0 size=    1224kB time=00:00:04.03 bitrate=2485.2kbits/s    
  
  frame=  106 fps= 10 q=2.0 size=    1259kB time=00:00:04.23 bitrate=2436.7kbits/s    
  
  frame=  111 fps= 10 q=2.0 size=    1326kB time=00:00:04.43 bitrate=2449.5kbits/s    
  
  frame=  116 fps= 10 q=2.0 size=    1355kB time=00:00:04.63 bitrate=2396.5kbits/s    
  
  frame=  121 fps= 10 q=2.0 size=    1409kB time=00:00:04.83 bitrate=2388.1kbits/s    
  
  frame=  127 fps= 10 q=2.0 size=    1424kB time=00:00:05.06 bitrate=2302.5kbits/s    
  
  frame=  133 fps= 10 q=2.0 size=    1480kB time=00:00:05.30 bitrate=2286.8kbits/s    
  
  frame=  139 fps= 10 q=2.0 size=    1497kB time=00:00:05.56 bitrate=2203.7kbits/s    
  
  frame=  145 fps= 10 q=2.0 size=    1552kB time=00:00:05.80 bitrate=2191.8kbits/s    
  
  frame=  151 fps= 10 q=2.0 size=    1567kB time=00:00:06.03 bitrate=2127.6kbits/s    
  
  frame=  157 fps= 10 q=2.0 size=    1621kB time=00:00:06.26 bitrate=2119.2kbits/s    
  
  frame=  163 fps= 10 q=2.0 size=    1641kB time=00:00:06.50 bitrate=2068.1kbits/s    
  
  frame=  169 fps= 10 q=2.0 size=    1710kB time=00:00:06.76 bitrate=2070.3kbits/s    
  
  frame=  175 fps= 10 q=2.0 size=    1750kB time=00:00:07.00 bitrate=2047.9kbits/s    
  
  frame=  181 fps= 10 q=2.0 size=    1834kB time=00:00:07.23 bitrate=2077.6kbits/s    
  
  frame=  187 fps= 10 q=2.0 size=    1876kB time=00:00:07.46 bitrate=2058.4kbits/s    
  
  frame=  193 fps= 10 q=2.0 size=    1962kB time=00:00:07.70 bitrate=2087.7kbits/s    
  
  frame=  199 fps= 10 q=2.0 size=    2005kB time=00:00:07.96 bitrate=2061.5kbits/s    
  
  frame=  205 fps= 10 q=2.0 size=    2088kB time=00:00:08.20 bitrate=2086.1kbits/s    
  
  frame=  211 fps= 10 q=2.0 size=    2126kB time=00:00:08.43 bitrate=2065.0kbits/s    
  
  frame=  217 fps= 10 q=2.0 size=    2201kB time=00:00:08.66 bitrate=2080.5kbits/s    
  
  frame=  223 fps= 10 q=2.0 size=    2230kB time=00:00:08.90 bitrate=2052.8kbits/s    
  
  frame=  229 fps= 10 q=2.0 size=    2293kB time=00:00:09.16 bitrate=2049.5kbits/s    
  
  frame=  235 fps= 10 q=2.0 size=    2307kB time=00:00:09.40 bitrate=2010.4kbits/s    
  
  frame=  241 fps= 10 q=2.0 size=    2366kB time=00:00:09.63 bitrate=2011.8kbits/s    
  
  frame=  247 fps= 10 q=2.0 size=    2409kB time=00:00:09.86 bitrate=2000.1kbits/s    
  
  frame=  250 fps= 10 q=2.0 Lsize=    2438kB time=00:00:10.00 bitrate=1997.2kbits/s    
  
  
  
  video:2425kB audio:0kB subtitle:0 global headers:0kB muxing overhead 0.523809%

• How to use ffmpeg to mix two audio files to a single one ?

  18 mars 2014, par Dead Live

  I want to mix two audio files to a single one use ffmpeg. So I download the latest version of ffmpeg, and check the document and get the code :

  ffmpeg -i 10001.wav -i 201.wav -filter_complex amix=inputs=2:duration=shortest output.wav

  but I got this error :

  ffmpeg version 0.11.1 Copyright (c) 2000-2012 the FFmpeg developers
  
    built on Aug  9 2012 16:22:59 with gcc 4.1.2 20080704 (Red Hat 4.1.2-52)
  
    configuration: --prefix=/usr/ --enable-gpl --enable-libx264 --enable-libmp3lame
  
    libavutil      51. 54.100 / 51. 54.100
  
    libavcodec     54. 23.100 / 54. 23.100
  
    libavformat    54.  6.100 / 54.  6.100
  
    libavdevice    54.  0.100 / 54.  0.100
  
    libavfilter     2. 77.100 /  2. 77.100
  
    libswscale      2.  1.100 /  2.  1.100
  
    libswresample   0. 15.100 /  0. 15.100
  
    libpostproc    52.  0.100 / 52.  0.100
  
  [wav @ 0x13d08100] max_analyze_duration 5000000 reached at 5120000
  
  Guessed Channel Layout for  Input Stream #0.0 : mono
  
  Input #0, wav, from '10001.wav':
  
    Duration: 00:00:07.91, bitrate: 64 kb/s
  
      Stream #0:0: Audio: pcm_alaw ([6][0][0][0] / 0x0006), 8000 Hz, mono, s16, 64 kb/s
  
  [wav @ 0x13d08980] max_analyze_duration 5000000 reached at 5120000
  
  Guessed Channel Layout for  Input Stream #1.0 : mono
  
  Input #1, wav, from '201.wav':
  
    Duration: 00:00:11.88, bitrate: 128 kb/s
  
      Stream #1:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 8000 Hz, mono, s16, 128 kb/s
  
  [abuffersink @ 0x13d268c0] No opaque field provided, an AVABufferSinkParams struct is required

  Can anyone can help me ? Thanks !