[FFmpeg-user] Unable to decode & encode a file with cuvid & nvenc

κΉ€λ„μ˜ dogenius01 at gmail.com
Tue Jan 9 08:01:19 EET 2018

Hi, I'm trying to use the hwaccel feature of GPU.
But, faced some troubles.

It works well in most cases. But today i faced this error.

ffmpeg -hide_banner -hwaccel cuvid -c:v h264_cuvid -resize 1024x720 -i
./waterfall.mp4 -c:a copy -c:v h264_nvenc 123.mp4
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from './waterfall.mp4':
    major_brand     : mp42
    minor_version   : 1
    compatible_brands: mp41mp42isom
    creation_time   : 2017-06-28T01:08:40.000000Z
  Duration: 00:00:06.20, start: 0.000000, bitrate: 2675 kb/s
    Stream #0:0(und): Video: h264 (Baseline) (avc1 / 0x31637661),
yuv420p(tv, bt709), 720x404, 2592 kb/s, 29.84 fps, 30 tbr, 600 tbn, 1200
tbc (default)
      rotate          : 90
      creation_time   : 2017-06-28T01:08:40.000000Z
      handler_name    : Core Media Video
    Side data:
      displaymatrix: rotation of -90.00 degrees
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono,
fltp, 63 kb/s (default)
      creation_time   : 2017-06-28T01:08:40.000000Z
      handler_name    : Core Media Audio
File '123.mp4' already exists. Overwrite ? [y/N] y
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (h264_cuvid) -> h264 (h264_nvenc))
  Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
Impossible to convert between the formats supported by the filter 'graph 0
input from stream 0:0' 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
Conversion failed!

Do you guys know what is wrong with the file or the command?
You can view or download that video file from here =>

Please enjoy this error.

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