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• Scale with scale_vaapi and than pad, got error. Seems ok without "pad"

  24 mai 2023, par huangda1982

  My computer : customized Linux, haswell
I am trying to scale 1280x720 video to 640x450 in 640x480 frame with black borders. To do so, I run this command :

  


  ffmpeg -v warning -hide_banner -init_hw_device vaapi=vaapi0:/dev/dri/renderD128 -hwaccel vaapi -hwaccel_output_format vaapi -hwaccel_device vaapi0 -filter_hw_device vaapi0 -i 'my_video.mp4' -vf 'scale_vaapi=640:450,pad=640:480:0:14' -c:v h264_vaapi -q:v 18 -profile:v main -level 3.1 -c:a aac -q:a 3 -f mp4 out.mp4 -loglevel verbose


  


  And I got this error :

  


  Impossible to convert between the formats supported by the filter &#x27;Parsed_scale_vaapi_0&#x27; and the filter &#x27;auto_scaler_0&#x27;<br />&#xA;Error reinitializing filters!&#xA;Failed to inject frame into filter network: Function not implemented&#xA;Error while processing the decoded data for stream #0:0&#xA;

  


  When I removed the ",pad=640:480:0:14" part, the command continued. I pressed ctrl-c, and did not check the result.

  


  "-q:v 18", "-level 3.1" and "-q:a" options seem not work.

  


  Full message :

  


  [h264 @ 0x55dfeb529340] Reinit context to 1280x720, pix_fmt: yuv420p
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'my_video.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: mp41
    creation_time   : 1970-01-01T00:00:00.000000Z
    encoder         : PotEncoder
  Duration: 00:22:45.01, start: 0.000000, bitrate: 3264 kb/s
  Stream #0:0(und): Video: h264 (Constrained Baseline), 1 reference frame (avc1 / 0x31637661), yuv420p(left), 1280x720 [SAR 1:1 DAR 16:9], 3068 kb/s, 23.98 fps, 23.98 tbr, 1199 tbn, 47.96 tbc (default)
    Metadata:
      creation_time   : 1970-01-01T00:00:00.000000Z
      handler_name    : VideoHandler
      vendor_id       : [0][0][0][0]
  Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 192 kb/s (default)
    Metadata:
      creation_time   : 1970-01-01T00:00:00.000000Z
      handler_name    : SoundHandler
      vendor_id       : [0][0][0][0]
File 'out.mp4' already exists. Overwrite? [y/N] y
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (h264_vaapi))
  Stream #0:1 -> #0:1 (mp3 (mp3float) -> aac (native))
Press [q] to stop, [?] for help
[h264 @ 0x55dfeb553e40] Reinit context to 1280x720, pix_fmt: vaapi_vld
[graph_1_in_0_1 @ 0x55dfeb6b7580] tb:1/44100 samplefmt:fltp samplerate:44100 chlayout:0x3
[graph 0 input from stream 0:0 @ 0x55dfebb4d000] w:1280 h:720 pixfmt:vaapi_vld tb:1/1199 fr:1199/50 sar:1/1
[auto_scaler_0 @ 0x55dfebb4f940] w:iw h:ih flags:'bicubic' interl:0
[Parsed_pad_1 @ 0x55dfebb4c700] auto-inserting filter 'auto_scaler_0' between the filter 'Parsed_scale_vaapi_0' and the filter 'Parsed_pad_1'
Impossible to convert between the formats supported by the filter 'Parsed_scale_vaapi_0' and the filter 'auto_scaler_0'
Error reinitializing filters!
Failed to inject frame into filter network: Function not implemented
Error while processing the decoded data for stream #0:0
[AVIOContext @ 0x55dfeb5522c0] Statistics: 0 seeks, 0 writeouts
[aac @ 0x55dfeb551600] Qavg: 354.000
[aac @ 0x55dfeb551600] 2 frames left in the queue on closing
[AVIOContext @ 0x55dfeb530500] Statistics: 1144787 bytes read, 2 seeks
Conversion failed!


  


• avformat/flvenc : fix EOS tag

  6 février 2023, par Zhao Zhili

  avformat/flvenc : fix EOS tag
  FLV spec only has AVC end of sequence tag, and the EOS tag has a
  
  CodecID as other video data packet. MPEG4 doesn't conformance to
  
  the spec, but it's there for a decade. So only 'fix' the EOS tag
  
  rather than remove it completely.
  Reviewed-by : Steven Liu <lq@chinaffmpeg.org>
  
  Signed-off-by : Zhao Zhili <zhilizhao@tencent.com>
  

  • [DH] libavformat/flvenc.c

• ffmpeg adds silence when used with input text file

  1er octobre 2022, par AncientToaster

  I'm using ffmpeg's concat option to combine a series of still images with an mp3 file. The total duration of my input.txt file is 12532 seconds, which is exactly the same as the total duration of my mp3 file (3:28:52, or 12532 seconds).

  


  But ffmpeg is adding 200 seconds of audio-free content to the end of the video. I've tried totaling and re-totaling the total duration of input.txt and it all seems to add up to the same amount. Including or excluding the -shortest flag also doesn't seem to matter.

  


  


  • ffmpeg command :

    


    ffmpeg -f concat -i input.txt -i input.mp3 -shortest -c:v libx264 -r 1 -pix_fmt yuv420p output.mp4


    


  


  • input.txt source

    


  


  • input.mp3

    


  


  • output file

    


  


  


  I'm having the same issue (differing amounts of time) with other videos.