I run this command on file testing:

ffmpeg -y -hide_banner -threads 8 -hwaccel nvdec -hwaccel_output_format cuda -i Saving Mr Banks (2013).mkv -vf scale_cuda=-1:720 -c:v h264_nvenc -rc vbr_hq -profile:v main -minrate 1500k -maxrate 4M -bufsize 5M -acodec ac3 -ac 6 -strict experimental -ar 48000 -b:a 640k -preset slow -flags +loop -cmp chroma -subq 6 -me_range 16 -g 250 -keyint_min 25 -sc_threshold 40 -i_qfactor 0.71 -b_strategy 1 -map 0:v -map 0:m:language:ita -metadata title=Saving Mr Banks (2013) -metadata description=Films -metadata comment=Films ../Films-720p/Saving Mr Banks (2013).mp4

I run my script ansible for install ffmpeg with cuda

https://github.com/mikysal78/ffmpeg-cuda

and scripts:

https://github.com/mikysal78/scripting/blob/master/videoconverter

what is missing?
Thanks.


Input #0, matroska,webm, from 'Saving Mr Banks (2013).mkv':

  Metadata:
    encoder         : libebml v1.3.1 + libmatroska v1.4.2
    creation_time   : 2015-10-10T11:17:33.000000Z
  Duration: 02:05:40.58, start: 0.040000, bitrate: 1485 kb/s
    Stream #0:0: Video: h264 (High), yuv420p(tv, bt709, progressive), 1280x544 [SAR 51:50 DAR 12:5], SAR 209:205 DAR 1672:697, 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc (default)
    Metadata:
      BPS             : 1149816
      BPS-eng         : 1149816
      DURATION        : 02:05:40.533000000
      DURATION-eng    : 02:05:40.533000000
      NUMBER_OF_FRAMES: 180792
      NUMBER_OF_FRAMES-eng: 180792
      NUMBER_OF_BYTES : 1083778510
      NUMBER_OF_BYTES-eng: 1083778510
      _STATISTICS_WRITING_APP: mkvmerge v8.4.0 ('A better way to fly') 64bit       _STATISTICS_WRITING_APP-eng: mkvmerge v8.4.0 ('A better way to fly') 64bit
      _STATISTICS_WRITING_DATE_UTC: 2015-10-10 11:17:33
      _STATISTICS_WRITING_DATE_UTC-eng: 2015-10-10 11:17:33
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    Stream #0:1(ita): Audio: aac (LC), 48000 Hz, stereo, fltp (default)
    Metadata:
      title           : Stereo
      BPS             : 159999
      BPS-eng         : 159999
      DURATION        : 02:05:40.523000000
      DURATION-eng    : 02:05:40.523000000
      NUMBER_OF_FRAMES: 353462
      NUMBER_OF_FRAMES-eng: 353462
      NUMBER_OF_BYTES : 150810454
      NUMBER_OF_BYTES-eng: 150810454
      _STATISTICS_WRITING_APP: mkvmerge v8.4.0 ('A better way to fly') 64bit       _STATISTICS_WRITING_APP-eng: mkvmerge v8.4.0 ('A better way to fly') 64bit
      _STATISTICS_WRITING_DATE_UTC: 2015-10-10 11:17:33
      _STATISTICS_WRITING_DATE_UTC-eng: 2015-10-10 11:17:33
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    Stream #0:2(eng): Audio: aac (LC), 48000 Hz, stereo, fltp
    Metadata:
      title           : Stereo
      BPS             : 160000
      BPS-eng         : 160000
      DURATION        : 02:05:40.544000000
      DURATION-eng    : 02:05:40.544000000
      NUMBER_OF_FRAMES: 353463
      NUMBER_OF_FRAMES-eng: 353463
      NUMBER_OF_BYTES : 150810881
      NUMBER_OF_BYTES-eng: 150810881
      _STATISTICS_WRITING_APP: mkvmerge v8.4.0 ('A better way to fly') 64bit       _STATISTICS_WRITING_APP-eng: mkvmerge v8.4.0 ('A better way to fly') 64bit
      _STATISTICS_WRITING_DATE_UTC: 2015-10-10 11:17:33
      _STATISTICS_WRITING_DATE_UTC-eng: 2015-10-10 11:17:33
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    Stream #0:3(ita): Subtitle: dvd_subtitle, 1920x1080
    Metadata:
      title           : italian
      BPS             : 5851
      BPS-eng         : 5851
      DURATION        : 02:01:50.502000000
      DURATION-eng    : 02:01:50.502000000
      NUMBER_OF_FRAMES: 1654
      NUMBER_OF_FRAMES-eng: 1654
      NUMBER_OF_BYTES : 5347009
      NUMBER_OF_BYTES-eng: 5347009
      _STATISTICS_WRITING_APP: mkvmerge v8.4.0 ('A better way to fly') 64bit       _STATISTICS_WRITING_APP-eng: mkvmerge v8.4.0 ('A better way to fly') 64bit
      _STATISTICS_WRITING_DATE_UTC: 2015-10-10 11:17:33
      _STATISTICS_WRITING_DATE_UTC-eng: 2015-10-10 11:17:33
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    Stream #0:4(eng): Subtitle: dvd_subtitle, 1920x1080
    Metadata:
      title           : english
      BPS             : 7072
      BPS-eng         : 7072
      DURATION        : 02:02:43.062000000
      DURATION-eng    : 02:02:43.062000000
      NUMBER_OF_FRAMES: 2068
      NUMBER_OF_FRAMES-eng: 2068
      NUMBER_OF_BYTES : 6509712
      NUMBER_OF_BYTES-eng: 6509712
      _STATISTICS_WRITING_APP: mkvmerge v8.4.0 ('A better way to fly') 64bit       _STATISTICS_WRITING_APP-eng: mkvmerge v8.4.0 ('A better way to fly') 64bit
      _STATISTICS_WRITING_DATE_UTC: 2015-10-10 11:17:33
      _STATISTICS_WRITING_DATE_UTC-eng: 2015-10-10 11:17:33
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
Automatic encoder selection failed for output stream #0:2. Default encoder for format mp4 (codec none) is probably disabled. Please choose an encoder manually.
Error selecting an encoder for stream 0:2

Attachment: smime.p7s
Description: Firma crittografica S/MIME

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