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• ffmpeg : packet size 2073600 expected frame_size 4147200

  11 novembre 2015, par mrana

  I have total 96 videos. I have converted most of videos using ffmpeg,
  but for some videos its giving me some error.
  As a first step I deinterlaced the video using the following command :

  ffmpeg -video_size 1920x1080 -r 25 -pixel_format yuv422p -i stockholm.yuv -vf yadif  stockholm_deInt.yuv

  And I am getting the following error :

  [rawvideo @ 0x7fa144008c00] Invalid buffer size, packet size 2073600 < expected frame_size 4147200
  Error while decoding stream #0:0 : Invalid argument
  frame= 187 fps=3.7 q=-0.0 Lsize= 757350kB time=00:00:07.48 bitrate=829440.0kbits/s
  video:757350kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead : 0.000000%

  When I try to get the info about the video (ffprobe stockholm.yuv) I get the following :

  [IMGUTILS @ 0x7fff5bac8140] Picture size 0x0 is invalid
  [IMGUTILS @ 0x7fff5bac8150] Picture size 0x0 is invalid
  [rawvideo @ 0x7fbcb200da00] Could not find codec parameters for stream 0 (Video : rawvideo (I420 / 0x30323449), yuv420p, -4 kb/s) : unspecified size
  Consider increasing the value for the ’analyzeduration’ and ’probesize’ options
  stockholm.yuv : Operation not permitted`

  Does anyone have any idea ?

• ffmpeg : packet size 2073600 expected frame_size 4147200

  18 avril 2020, par mrana

  I have total 96 videos. I have converted most of videos using ffmpeg, &#xA;but for some videos its giving me some error. &#xA;As a first step I deinterlaced the video using the following command :

  &#xA;&#xA;

  ffmpeg -video_size 1920x1080 -r 25 -pixel_format yuv422p -i stockholm.yuv -vf yadif  stockholm_deInt.yuv


  &#xA;&#xA;

  And I am getting the following error :

  &#xA;&#xA;

  &#xA;

  [rawvideo @ 0x7fa144008c00] Invalid buffer size, packet size 2073600 < expected frame_size 4147200
  &#xA; Error while decoding stream #0:0 : Invalid argument&#xA; frame= 187 fps=3.7 q=-0.0 Lsize= 757350kB time=00:00:07.48 bitrate=829440.0kbits/s
  &#xA; video:757350kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead : 0.000000%

  &#xA;

  &#xA;&#xA;

  When I try to get the info about the video (ffprobe stockholm.yuv) I get the following :

  &#xA;&#xA;

  &#xA;

  [IMGUTILS @ 0x7fff5bac8140] Picture size 0x0 is invalid
  &#xA; [IMGUTILS @ 0x7fff5bac8150] Picture size 0x0 is invalid
  &#xA; [rawvideo @ 0x7fbcb200da00] Could not find codec parameters for stream 0 (Video : rawvideo (I420 / 0x30323449), yuv420p, -4 kb/s) : unspecified size
  &#xA; Consider increasing the value for the 'analyzeduration' and 'probesize' options&#xA; stockholm.yuv : Operation not permitted`

  &#xA;

  &#xA;&#xA;

  Does anyone have any idea ?

  &#xA;

• Subprocess doesn't return expected result

  8 avril 2023, par Gren Man

  Subprocess doesn't return expected result

  &#xA;

  I have been trying getting info from video files using ffprobe

  &#xA;

  But I stumbled upon unexpected results, here are some test I've done

  &#xA;

  First test

  &#xA;

  # ffprobe -v error -select_streams v:0 -show_entries stream=height,width -of csv=s=x:p=0 
proc = subprocess.Popen(['ffprobe', '-v', 'error', '-select_streams', 'v:0', '-show_entries', 
       'stream=height,width', '-of', 'csv=s=x:p=0 ', video_path],
       stdout=subprocess.PIPE, stdin=subprocess.PIPE)

# proc.stdout.read() Returns  b'widthXheightt\r\n'
v_resolution = proc.stdout.read().decode('utf-8').replace('\r', '').replace('\n', '')
# Result 'widthXheight'


  &#xA;

  First test was successful.

  &#xA;

  Second test

  &#xA;

  # ffprobe -v error -select_streams v:0 -show_entries stream=display_aspect_ratio -of default=noprint_wrappers=1:nokey=1
proc = subprocess.Popen(['ffprobe', '-v', 'error', '-select_streams', 'v:0', '-show_entries',
       'stream=display_aspect_ratio','-of default=noprint_wrappers=1:nokey=1', video_path],
       stdout=subprocess.PIPE, stdin=subprocess.PIPE)

# proc.stdout.read() Returns b''
a_r = proc.stdout.read().decode('utf-8').replace('\r', '').replace('\n', '')
# Result ''


  &#xA;

  Hmm, this doesn't sounds right I thought result should be e.g. 16:9

  &#xA;

  I tried putting code to CMD which returned aforementioned result

  &#xA;

  Third test

  &#xA;

  # ffprobe -v error -select_streams v -of default=noprint_wrappers=1:nokey=1 -show_entries stream=r_frame_rate
proc = subprocess.Popen(['ffprobe', '-v', 'error', '-select_streams', 'v', '-of',
       'default=noprint_wrappers=1:nokey=1','-show_entries', 'stream=r_frame_rate',
       video_path], stdout=subprocess.PIPE, stdin=subprocess.PIPE)

# proc.stdout.read() Returns b'30/1'
fps = proc.stdout.read().decode('utf-8').replace('\r', '').replace('\n', '') + ' fps'
# Result 30/1 fps


  &#xA;

  Just as expected this returned subarashi result

  &#xA;

  But what happened in a second test ? Can somebody explain it to me ? I used stderr which returned :

  &#xA;

  Failed to set value 'foo.mp4' for option 'of default=noprint_wrappers=1:nokey=1': Option not found


  &#xA;

  Result of python code

  &#xA;

  

  &#xA;