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• ffmpeg does not recognize used codec in any way

  26 janvier 2021, par Omid Ki

  I am using ffmpeg-python to combine video and audio in my program but for one video file I constantly get this error :

  


  ffmpeg version N-55702-g920046a Copyright (c) 2000-2013 the FFmpeg developers&#xA;built on Aug 21 2013 18:10:00 with gcc 4.7.3 (GCC)&#xA;configuration: --disable-static --enable-shared --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib&#xA;libavutil      52. 42.100 / 52. 42.100&#xA;libavcodec     55. 29.100 / 55. 29.100&#xA;libavformat    55. 14.101 / 55. 14.101&#xA;libavdevice    55.  3.100 / 55.  3.100&#xA;libavfilter     3. 82.100 /  3. 82.100&#xA;libswscale      2.  5.100 /  2.  5.100&#xA;libswresample   0. 17.103 /  0. 17.103&#xA;libpostproc    52.  3.100 / 52.  3.100&#xA;[mov,mp4,m4a,3gp,3g2,mj2 @ 000000000073cb40] Could not find codec parameters for stream 0 (Video: none (av01 / 0x31307661), 2560x1440, 5427 kb/s): unknown codec&#xA;Consider increasing the value for the &#x27;analyzeduration&#x27; and &#x27;probesize&#x27; options&#xA;temp/Above NYC - Filmed in 12K.mp4: could not find codec parameters&#xA;Traceback (most recent call last):&#xA;  File "C:/Users/Family/PycharmProjects/8-bit Downloader/class_8_bit.py", line 4, in <module>&#xA;    ffmpeg.output(v, "temp/hello.mp4").run()&#xA;  File "C:\Users\Family\PycharmProjects\8-bit Downloader\venv\lib\site-packages\ffmpeg\_run.py", line 325, in run&#xA;    raise Error(&#x27;ffmpeg&#x27;, out, err)&#xA;ffmpeg._run.Error: ffmpeg error (see stderr output for detail)&#xA;</module>

  


  It just doesn't recognize it. I know that the codec is av01 I have tried passing it in as the vcodec keyword but nothing would work. I tried going to cmd directly and adding to the 'analyzeduration' and 'probsize' but nothing seems to work. How can I fix this ? My code :

  


  import ffmpeg

# I have tried passing absolute paths instead of relative ones too, still not working
input_video = ffmpeg.input("temp/Above NYC - Filmed in 12K.mp4")
input_audio = ffmpeg.input("temp/audio_temp 1.webm")
full_path = "temp/New.mp4"
out = ffmpeg.output(input_video, input_audio, full_path, vcodec='copy', acodec='aac', strict='experimental')
out.run(overwrite_output=True)


  


• Converting mkv to h264 FFmpeg

  14 janvier 2021, par Rikus Honey

  EDIT :
This question has become very popular and is one of the top results for searching "convert mkv to h264 ffmpeg" and thus I feel it is appropriate to add that for anyone stumbling upon this question to rather use

  


  ffmpeg -i input.mkv -c:v libx264 -c:a aac output.mp4


  


  as libvo_aacenc has been removed in recent versions of FFmpeg and it now has a native aac encoder. For more information visit the FFmpeg wiki page for encoding AAC.

  


  Here is the original question :

  


  I would like to convert my .mkv files to .mp4 using FFmpeg. I have tried the following code :

  


  ffmpeg -i input.mkv -c:v libx264 -c:a libvo_aacenc output.mp4


  


  But I get the error :

  


  


  Error while opening encoder for output stream #0:1 - maybe incorrect parameters such as bit_rate, rate, width or height.

  


  


  Is there any way to get around this ? I have tried setting the bitrate of the audio but the problem seems to persist.

  


• Chips&Media delivers VP8 HD video hardware decoder IP

  7 décembre 2010, par noreply@blogger.com (John Luther)

  Silicon video IP maker Chips&Media has begun shipping its CODA960 multiformat HD video hardware core, which supports up to 1080p60 playback of VP8 video. VP8 is the video codec used in WebM.

  Chips&Media representatives went on the road recently to show the industry’s first FPGA demonstration of WebM 1080p hardware decoding. For more information, visit the Chips&Media web site.