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Sur d’autres sites (6511)

  • ffmpeg autorotate results in broken output when moving from cpu to gpu

    16 août 2023, par user2290269

    Given an input file with a Display Matrix :

    


    ffprobe -show_format -show_streams -print_format json -i rotated.mov

    


    Using CPU-transcoding is resulting in a correctly rotated output file and exitcode 0 :

    


    ffmpeg -autorotate 1 -y -i rotated.mov -f mp4 -vf scale=-2:360 -c:v libx264 -b:v 800K cpu.mp4

    


    Using GPU-transcoding is resulting in a incorretly rotated output file and exitcode 0 :

    


    ffmpeg -hwaccel cuda -hwaccel_output_format cuda -autorotate 1 -y -i rotated.mov -f mp4 -vf scale_cuda=-2:360 -c:v h264_nvenc -b:v 800K gpu.mp4

    


    See the Display Matrix rotation information.
The GPU-File plays upside down, the CPU-File plays correctly.

    


    Looks like (the default -autoroatate 1) is silently ignored for GPU-based transcoding. automatic insertion of filters fails silently. exitcode is 0 for gpu, too. but the output is actually broken, because it is upside down in playback.

    


    Same is true for input having other rotations than -180°.

    


    One (bad) way to solve, use complex filters :
When using complex filter with hwupload_cuda, the autorotate-filters get added correctly automatically.

    


    ffmpeg -y -i rotated.mov -f mp4 -vf hwupload_cuda=device=0,scale_cuda=-2:360 -c:v h264_nvenc -b:v 800K gpu-complexfilter.mp4

    


    When going into scale_cuda directly there is an error message and exitcode !=0.

    


    ffmpeg -y -loglevel debug -i rotated.mov -f mp4 -vf scale_cuda=-2:360 -c:v h264_nvenc -b:v 800K gpu-error.mp4

    


    Impossible to convert between the formats supported by the filter 'hflip' and the filter 'auto_scale_0'
[vf#0:0 @ 0000026723318540] Error reinitializing filters!
Failed to inject frame into filter network: Function not implemented
Error while filtering: Function not implemented


    


    Using complex filters is not a good solution, because it disables automatic filter graph filter-adding and -mapping, which is very useful for e.g. -f HLS.

    


    So is there a way to keep complex filters away and get correct output or exitcode !=0 indicating a broken output for any given input-file coming as a file-upload from the internet ?

    


    e:\>ffprobe -show_format -show_streams -print_format json -i rotated.mov
ffprobe version 2023-08-14-git-c704901324-full_build-www.gyan.dev Copyright (c) 2007-2023 the FFmpeg developers
  built with gcc 12.2.0 (Rev10, Built by MSYS2 project)
  configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libaribb24 --enable-libaribcaption --enable-libdav1d --enable-libdavs2 --enable-libuavs3d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libaom --enable-libjxl --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libharfbuzz --enable-liblensfun --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libvpl --enable-libshaderc --enable-vulkan --enable-libplacebo --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libcodec2 --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
  libavutil      58. 16.101 / 58. 16.101
  libavcodec     60. 23.100 / 60. 23.100
  libavformat    60. 10.100 / 60. 10.100
  libavdevice    60.  2.101 / 60.  2.101
  libavfilter     9. 11.100 /  9. 11.100
  libswscale      7.  3.100 /  7.  3.100
  libswresample   4. 11.100 /  4. 11.100
  libpostproc    57.  2.100 / 57.  2.100
{
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'rotated.mov':
  Metadata:
    major_brand     : qt
    minor_version   : 512
    compatible_brands: qt
    encoder         : Lavf59.34.102
  Duration: 00:00:10.07, start: 0.000000, bitrate: 15190 kb/s
  Stream #0:0[0x1]: Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 1920x1080, 15003 kb/s, 30 fps, 30 tbr, 19200 tbn (default)
    Metadata:
      handler_name    : Core Media Video
      vendor_id       : FFMP
      encoder         : H.264
    Side data:
      displaymatrix: rotation of -180.00 degrees
  Stream #0:1[0x2]: Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 177 kb/s (default)
    Metadata:
      handler_name    : Core Media Audio
      vendor_id       : [0][0][0][0]
    "streams": [
        {
            "index": 0,
            "codec_name": "h264",
            "codec_long_name": "H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10",
            "profile": "High",
            "codec_type": "video",
            "codec_tag_string": "avc1",
            "codec_tag": "0x31637661",
            "width": 1920,
            "height": 1080,
            "coded_width": 1920,
            "coded_height": 1080,
            "closed_captions": 0,
            "film_grain": 0,
            "has_b_frames": 1,
            "pix_fmt": "yuv420p",
            "level": 40,
            "color_range": "tv",
            "color_space": "bt709",
            "color_transfer": "bt709",
            "color_primaries": "bt709",
            "chroma_location": "left",
            "field_order": "progressive",
            "refs": 1,
            "is_avc": "true",
            "nal_length_size": "4",
            "id": "0x1",
            "r_frame_rate": "30/1",
            "avg_frame_rate": "30/1",
            "time_base": "1/19200",
            "start_pts": 0,
            "start_time": "0.000000",
            "duration_ts": 193280,
            "duration": "10.066667",
            "bit_rate": "15003313",
            "bits_per_raw_sample": "8",
            "nb_frames": "302",
            "extradata_size": 35,
            "disposition": {
                "default": 1,
                "dub": 0,
                "original": 0,
                "comment": 0,
                "lyrics": 0,
                "karaoke": 0,
                "forced": 0,
                "hearing_impaired": 0,
                "visual_impaired": 0,
                "clean_effects": 0,
                "attached_pic": 0,
                "timed_thumbnails": 0,
                "captions": 0,
                "descriptions": 0,
                "metadata": 0,
                "dependent": 0,
                "still_image": 0
            },
            "tags": {
                "handler_name": "Core Media Video",
                "vendor_id": "FFMP",
                "encoder": "H.264"
            },
            "side_data_list": [
                {
                    "side_data_type": "Display Matrix",
                    "displaymatrix": "\n00000000:       -65536           0           0\n00000001:            0      -65536           0\n00000002:    125829120    70778880  1073741824\n",
                    "rotation": -180
                }
            ]
        },
        {
            "index": 1,
            "codec_name": "aac",
            "codec_long_name": "AAC (Advanced Audio Coding)",
            "profile": "LC",
            "codec_type": "audio",
            "codec_tag_string": "mp4a",
            "codec_tag": "0x6134706d",
            "sample_fmt": "fltp",
            "sample_rate": "44100",
            "channels": 2,
            "channel_layout": "stereo",
            "bits_per_sample": 0,
            "initial_padding": 0,
            "id": "0x2",
            "r_frame_rate": "0/0",
            "avg_frame_rate": "0/0",
            "time_base": "1/44100",
            "start_pts": 0,
            "start_time": "0.000000",
            "duration_ts": 441309,
            "duration": "10.007007",
            "bit_rate": "177895",
            "nb_frames": "433",
            "extradata_size": 2,
            "disposition": {
                "default": 1,
                "dub": 0,
                "original": 0,
                "comment": 0,
                "lyrics": 0,
                "karaoke": 0,
                "forced": 0,
                "hearing_impaired": 0,
                "visual_impaired": 0,
                "clean_effects": 0,
                "attached_pic": 0,
                "timed_thumbnails": 0,
                "captions": 0,
                "descriptions": 0,
                "metadata": 0,
                "dependent": 0,
                "still_image": 0
            },
            "tags": {
                "handler_name": "Core Media Audio",
                "vendor_id": "[0][0][0][0]"
            }
        }
    ],
    "format": {
        "filename": "rotated.mov",
        "nb_streams": 2,
        "nb_programs": 0,
        "format_name": "mov,mp4,m4a,3gp,3g2,mj2",
        "format_long_name": "QuickTime / MOV",
        "start_time": "0.000000",
        "duration": "10.066667",
        "size": "19115175",
        "bit_rate": "15190867",
        "probe_score": 100,
        "tags": {
            "major_brand": "qt  ",
            "minor_version": "512",
            "compatible_brands": "qt  ",
            "encoder": "Lavf59.34.102"
        }
    }
}


    


    E:\>ffprobe -show_format -show_streams -print_format json -i cpu.mp4
ffprobe version 2023-08-14-git-c704901324-full_build-www.gyan.dev Copyright (c) 2007-2023 the FFmpeg developers
  built with gcc 12.2.0 (Rev10, Built by MSYS2 project)
  ...
{
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'cpu.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf60.10.100
  Duration: 00:00:10.10, start: 0.000000, bitrate: 850 kb/s
  Stream #0:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 640x360, 713 kb/s, 30 fps, 30 tbr, 15360 tbn (default)
    Metadata:
      handler_name    : Core Media Video
      vendor_id       : [0][0][0][0]
      encoder         : Lavc60.23.100 libx264
  Stream #0:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s (default)
    Metadata:
      handler_name    : Core Media Audio
      vendor_id       : [0][0][0][0]
    "streams": [
        {
            "index": 0,
            "codec_name": "h264",
            "codec_long_name": "H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10",
            "profile": "High",
            "codec_type": "video",
            "codec_tag_string": "avc1",
            "codec_tag": "0x31637661",
            "width": 640,
            "height": 360,
            "coded_width": 640,
            "coded_height": 360,
            "closed_captions": 0,
            "film_grain": 0,
            "has_b_frames": 2,
            "pix_fmt": "yuv420p",
            "level": 30,
            "color_range": "tv",
            "color_space": "bt709",
            "color_transfer": "bt709",
            "color_primaries": "bt709",
            "chroma_location": "left",
            "field_order": "progressive",
            "refs": 1,
            "is_avc": "true",
            "nal_length_size": "4",
            "id": "0x1",
            "r_frame_rate": "30/1",
            "avg_frame_rate": "30/1",
            "time_base": "1/15360",
            "start_pts": 0,
            "start_time": "0.000000",
            "duration_ts": 155136,
            "duration": "10.100000",
            "bit_rate": "713885",
            "bits_per_raw_sample": "8",
            "nb_frames": "303",
            "extradata_size": 49,
            "disposition": {
                "default": 1,
                "dub": 0,
                "original": 0,
                "comment": 0,
                "lyrics": 0,
                "karaoke": 0,
                "forced": 0,
                "hearing_impaired": 0,
                "visual_impaired": 0,
                "clean_effects": 0,
                "attached_pic": 0,
                "timed_thumbnails": 0,
                "captions": 0,
                "descriptions": 0,
                "metadata": 0,
                "dependent": 0,
                "still_image": 0
            },
            "tags": {
                "language": "und",
                "handler_name": "Core Media Video",
                "vendor_id": "[0][0][0][0]",
                "encoder": "Lavc60.23.100 libx264"
            }
        },
        {
            "index": 1,
            "codec_name": "aac",
            "codec_long_name": "AAC (Advanced Audio Coding)",
            "profile": "LC",
            "codec_type": "audio",
            "codec_tag_string": "mp4a",
            "codec_tag": "0x6134706d",
            "sample_fmt": "fltp",
            "sample_rate": "44100",
            "channels": 2,
            "channel_layout": "stereo",
            "bits_per_sample": 0,
            "initial_padding": 0,
            "id": "0x2",
            "r_frame_rate": "0/0",
            "avg_frame_rate": "0/0",
            "time_base": "1/44100",
            "start_pts": 0,
            "start_time": "0.000000",
            "duration_ts": 441265,
            "duration": "10.006009",
            "bit_rate": "127739",
            "nb_frames": "432",
            "extradata_size": 5,
            "disposition": {
                "default": 1,
                "dub": 0,
                "original": 0,
                "comment": 0,
                "lyrics": 0,
                "karaoke": 0,
                "forced": 0,
                "hearing_impaired": 0,
                "visual_impaired": 0,
                "clean_effects": 0,
                "attached_pic": 0,
                "timed_thumbnails": 0,
                "captions": 0,
                "descriptions": 0,
                "metadata": 0,
                "dependent": 0,
                "still_image": 0
            },
            "tags": {
                "language": "und",
                "handler_name": "Core Media Audio",
                "vendor_id": "[0][0][0][0]"
            }
        }
    ],
    "format": {
        "filename": "cpu.mp4",
        "nb_streams": 2,
        "nb_programs": 0,
        "format_name": "mov,mp4,m4a,3gp,3g2,mj2",
        "format_long_name": "QuickTime / MOV",
        "start_time": "0.000000",
        "duration": "10.100000",
        "size": "1073806",
        "bit_rate": "850539",
        "probe_score": 100,
        "tags": {
            "major_brand": "isom",
            "minor_version": "512",
            "compatible_brands": "isomiso2avc1mp41",
            "encoder": "Lavf60.10.100"
        }
    }
}


    


    E:\>ffprobe -show_format -show_streams -print_format json -i gpu.mp4
ffprobe version 2023-08-14-git-c704901324-full_build-www.gyan.dev Copyright (c) 2007-2023 the FFmpeg developers
  built with gcc 12.2.0 (Rev10, Built by MSYS2 project)
...
{
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'gpu.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf60.10.100
  Duration: 00:00:10.10, start: 0.000000, bitrate: 935 kb/s
  Stream #0:0[0x1](und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 640x360 [SAR 1:1 DAR 16:9], 799 kb/s, 30 fps, 30 tbr, 15360 tbn (default)
    Metadata:
      handler_name    : Core Media Video
      vendor_id       : [0][0][0][0]
      encoder         : Lavc60.23.100 h264_nvenc
  Stream #0:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s (default)
    Metadata:
      handler_name    : Core Media Audio
      vendor_id       : [0][0][0][0]
    "streams": [
        {
            "index": 0,
            "codec_name": "h264",
            "codec_long_name": "H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10",
            "profile": "Main",
            "codec_type": "video",
            "codec_tag_string": "avc1",
            "codec_tag": "0x31637661",
            "width": 640,
            "height": 360,
            "coded_width": 640,
            "coded_height": 360,
            "closed_captions": 0,
            "film_grain": 0,
            "has_b_frames": 2,
            "sample_aspect_ratio": "1:1",
            "display_aspect_ratio": "16:9",
            "pix_fmt": "yuv420p",
            "level": 30,
            "color_range": "tv",
            "color_space": "bt709",
            "color_transfer": "bt709",
            "color_primaries": "bt709",
            "chroma_location": "left",
            "field_order": "progressive",
            "refs": 1,
            "is_avc": "true",
            "nal_length_size": "4",
            "id": "0x1",
            "r_frame_rate": "30/1",
            "avg_frame_rate": "30/1",
            "time_base": "1/15360",
            "start_pts": 0,
            "start_time": "0.000000",
            "duration_ts": 155136,
            "duration": "10.100000",
            "bit_rate": "799210",
            "bits_per_raw_sample": "8",
            "nb_frames": "303",
            "extradata_size": 53,
            "disposition": {
                "default": 1,
                "dub": 0,
                "original": 0,
                "comment": 0,
                "lyrics": 0,
                "karaoke": 0,
                "forced": 0,
                "hearing_impaired": 0,
                "visual_impaired": 0,
                "clean_effects": 0,
                "attached_pic": 0,
                "timed_thumbnails": 0,
                "captions": 0,
                "descriptions": 0,
                "metadata": 0,
                "dependent": 0,
                "still_image": 0
            },
            "tags": {
                "language": "und",
                "handler_name": "Core Media Video",
                "vendor_id": "[0][0][0][0]",
                "encoder": "Lavc60.23.100 h264_nvenc"
            }
        },
        {
            "index": 1,
            "codec_name": "aac",
            "codec_long_name": "AAC (Advanced Audio Coding)",
            "profile": "LC",
            "codec_type": "audio",
            "codec_tag_string": "mp4a",
            "codec_tag": "0x6134706d",
            "sample_fmt": "fltp",
            "sample_rate": "44100",
            "channels": 2,
            "channel_layout": "stereo",
            "bits_per_sample": 0,
            "initial_padding": 0,
            "id": "0x2",
            "r_frame_rate": "0/0",
            "avg_frame_rate": "0/0",
            "time_base": "1/44100",
            "start_pts": 0,
            "start_time": "0.000000",
            "duration_ts": 441265,
            "duration": "10.006009",
            "bit_rate": "127739",
            "nb_frames": "432",
            "extradata_size": 5,
            "disposition": {
                "default": 1,
                "dub": 0,
                "original": 0,
                "comment": 0,
                "lyrics": 0,
                "karaoke": 0,
                "forced": 0,
                "hearing_impaired": 0,
                "visual_impaired": 0,
                "clean_effects": 0,
                "attached_pic": 0,
                "timed_thumbnails": 0,
                "captions": 0,
                "descriptions": 0,
                "metadata": 0,
                "dependent": 0,
                "still_image": 0
            },
            "tags": {
                "language": "und",
                "handler_name": "Core Media Audio",
                "vendor_id": "[0][0][0][0]"
            }
        }
    ],
    "format": {
        "filename": "gpu.mp4",
        "nb_streams": 2,
        "nb_programs": 0,
        "format_name": "mov,mp4,m4a,3gp,3g2,mj2",
        "format_long_name": "QuickTime / MOV",
        "start_time": "0.000000",
        "duration": "10.100000",
        "size": "1181528",
        "bit_rate": "935863",
        "probe_score": 100,
        "tags": {
            "major_brand": "isom",
            "minor_version": "512",
            "compatible_brands": "isomiso2avc1mp41",
            "encoder": "Lavf60.10.100"
        }
    }
}


    


    E:\>ffprobe -show_format -show_streams -print_format json -i gpu-complexfilter.mp4
ffprobe version 2023-08-14-git-c704901324-full_build-www.gyan.dev Copyright (c) 2007-2023 the FFmpeg developers
  built with gcc 12.2.0 (Rev10, Built by MSYS2 project)
...
{
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'gpu-complexfilter.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf60.10.100
  Duration: 00:00:10.10, start: 0.000000, bitrate: 934 kb/s
  Stream #0:0[0x1](und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 640x360 [SAR 1:1 DAR 16:9], 798 kb/s, 30 fps, 30 tbr, 15360 tbn (default)
    Metadata:
      handler_name    : Core Media Video
      vendor_id       : [0][0][0][0]
      encoder         : Lavc60.23.100 h264_nvenc
  Stream #0:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s (default)
    Metadata:
      handler_name    : Core Media Audio
      vendor_id       : [0][0][0][0]
    "streams": [
        {
            "index": 0,
            "codec_name": "h264",
            "codec_long_name": "H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10",
            "profile": "Main",
            "codec_type": "video",
            "codec_tag_string": "avc1",
            "codec_tag": "0x31637661",
            "width": 640,
            "height": 360,
            "coded_width": 640,
            "coded_height": 360,
            "closed_captions": 0,
            "film_grain": 0,
            "has_b_frames": 2,
            "sample_aspect_ratio": "1:1",
            "display_aspect_ratio": "16:9",
            "pix_fmt": "yuv420p",
            "level": 30,
            "color_range": "tv",
            "color_space": "bt709",
            "color_transfer": "bt709",
            "color_primaries": "bt709",
            "chroma_location": "left",
            "field_order": "progressive",
            "refs": 1,
            "is_avc": "true",
            "nal_length_size": "4",
            "id": "0x1",
            "r_frame_rate": "30/1",
            "avg_frame_rate": "30/1",
            "time_base": "1/15360",
            "start_pts": 0,
            "start_time": "0.000000",
            "duration_ts": 155136,
            "duration": "10.100000",
            "bit_rate": "798059",
            "bits_per_raw_sample": "8",
            "nb_frames": "303",
            "extradata_size": 53,
            "disposition": {
                "default": 1,
                "dub": 0,
                "original": 0,
                "comment": 0,
                "lyrics": 0,
                "karaoke": 0,
                "forced": 0,
                "hearing_impaired": 0,
                "visual_impaired": 0,
                "clean_effects": 0,
                "attached_pic": 0,
                "timed_thumbnails": 0,
                "captions": 0,
                "descriptions": 0,
                "metadata": 0,
                "dependent": 0,
                "still_image": 0
            },
            "tags": {
                "language": "und",
                "handler_name": "Core Media Video",
                "vendor_id": "[0][0][0][0]",
                "encoder": "Lavc60.23.100 h264_nvenc"
            }
        },
        {
            "index": 1,
            "codec_name": "aac",
            "codec_long_name": "AAC (Advanced Audio Coding)",
            "profile": "LC",
            "codec_type": "audio",
            "codec_tag_string": "mp4a",
            "codec_tag": "0x6134706d",
            "sample_fmt": "fltp",
            "sample_rate": "44100",
            "channels": 2,
            "channel_layout": "stereo",
            "bits_per_sample": 0,
            "initial_padding": 0,
            "id": "0x2",
            "r_frame_rate": "0/0",
            "avg_frame_rate": "0/0",
            "time_base": "1/44100",
            "start_pts": 0,
            "start_time": "0.000000",
            "duration_ts": 441265,
            "duration": "10.006009",
            "bit_rate": "127739",
            "nb_frames": "432",
            "extradata_size": 5,
            "disposition": {
                "default": 1,
                "dub": 0,
                "original": 0,
                "comment": 0,
                "lyrics": 0,
                "karaoke": 0,
                "forced": 0,
                "hearing_impaired": 0,
                "visual_impaired": 0,
                "clean_effects": 0,
                "attached_pic": 0,
                "timed_thumbnails": 0,
                "captions": 0,
                "descriptions": 0,
                "metadata": 0,
                "dependent": 0,
                "still_image": 0
            },
            "tags": {
                "language": "und",
                "handler_name": "Core Media Audio",
                "vendor_id": "[0][0][0][0]"
            }
        }
    ],
    "format": {
        "filename": "gpu-complexfilter.mp4",
        "nb_streams": 2,
        "nb_programs": 0,
        "format_name": "mov,mp4,m4a,3gp,3g2,mj2",
        "format_long_name": "QuickTime / MOV",
        "start_time": "0.000000",
        "duration": "10.100000",
        "size": "1180075",
        "bit_rate": "934712",
        "probe_score": 100,
        "tags": {
            "major_brand": "isom",
            "minor_version": "512",
            "compatible_brands": "isomiso2avc1mp41",
            "encoder": "Lavf60.10.100"
        }
    }
}


    


  • avformat : remove deprecated FF_API_AVSTREAM_SIDE_DATA

    19 février, par James Almer
    avformat : remove deprecated FF_API_AVSTREAM_SIDE_DATA
    

    Deprecated since 2023-10-06.

    Signed-off-by : James Almer <jamrial@gmail.com>

    • [DH] libavformat/avformat.c
    • [DH] libavformat/avformat.h
    • [DH] libavformat/demux.c
    • [DH] libavformat/demux_utils.c
    • [DH] libavformat/internal.h
    • [DH] libavformat/mux.c
    • [DH] libavformat/options.c
    • [DH] libavformat/seek.c
    • [DH] libavformat/version_major.h
  • How can I remove every nth frame from raw video using ffmpeg ?

    15 juin 2024, par DaveB44

    Question moved to SuperUser, please reply there

    &#xA;

    I have many cine films that have been digitally converted. They have been converted as a 25 fps with 2 frames in every 23 duplicated. I need to remove the duplicated frames using a bitstream filter so there is no decoding/encoding.

    &#xA;

    After removing the frames I will change to the original cine frame rate of 18 fps. I will then change the frame rate to 25 fps using duplicated frames. I don't want to interpolate as I want to preserve the jerky format of the cine. Finally I will video editing software that will do the final encoding.

    &#xA;

    All the additional steps will cause several stages of decoding/encoding, that I need to avoid.

    &#xA;

    First I used a combination of the answers to FFmpeg remove video frames at specific intervals and FFmpeg remove every 6th frame starting from the 3rd frame, on an mp4 file to check it works. I modified it to remove every 4th and 17th frame in 25.

    &#xA;

    ffmpeg -loglevel warning -i cine.mp4 -an -vf "select=&#x27;if((mod(n-4,25)),(mod(n-17,25)))&#x27;,setpts=&#x27;N/FRAME_RATE/TB&#x27;" cine-23.mp4&#xA;

    &#xA;

    This works fine, but I end up with a file a quarter the size.

    &#xA;

    I now used Gyan's answer in Using ffmpeg to change framerate to extract the raw bitstream.

    &#xA;

    ffmpeg -loglevel warning -i cine.mp4 -c copy -f h264 cine.h264&#xA;

    &#xA;

    This created the h264 file as expected, surprisingly it was 16 kB smaller than the original (67 GB file size).

    &#xA;

    I then modified the code to use the .h264 file.

    &#xA;

    ffmpeg -loglevel warning -i cine.h264 -vf "select=&#x27;if((mod(n-4,25)),(mod(n-17,25)))&#x27;,setpts=&#x27;N/FRAME_RATE/TB&#x27;" cine-23.h264&#xA;

    &#xA;

    This gave the following error, but created the cine-23.h264 file although it was the same size as cine-23.mp4 in the test above

    &#xA;

    [h264 @ 00000245ec0bfb80] non-existing SPS 0 referenced in buffering period&#xA;    Last message repeated 1 times&#xA;

    &#xA;

    I then checked the ffmpeg bitstream filter documentation and found the bitstream filter setts. I changed my code to the following.

    &#xA;

    ffmpeg -loglevel warning -i cine.h264 -bsf:v "select=&#x27;if((mod(n-4,25)),(mod(n-17,25)))&#x27;,setts=pts=&#x27;N/FRAME_RATE/TB&#x27;" cine-23.h264&#xA;

    &#xA;

    Which resulted in the following error.

    &#xA;

    [vost#0:0/libx264 @ 000002916cf173c0] Error parsing bitstream filter sequence &#x27;select=&#x27;if((mod(n-4,25)),(mod(n-17,25)))&#x27;,setts=pts=&#x27;N/FRAME_RATE/TB&#x27;&#x27;: Bitstream filter not found&#xA;Error opening output file cine-23.h264.&#xA;Error opening output files: Bitstream filter not found&#xA;

    &#xA;

    I'm assuming the error is because setts does not support select. Is there another way to achieve what I am looking for ?

    &#xA;

    I could use mpdecimate but as that has to compare each frame it is much slower than defining it only needs to delete frames 4 and 17 in every second.

    &#xA;

    This is the output of ffprobe on my original file.

    &#xA;

    ffprobe version 2023-11-28-git-47e214245b-full_build-www.gyan.dev Copyright (c) 2007-2023 the FFmpeg developers&#xA;  built with gcc 12.2.0 (Rev10, Built by MSYS2 project)&#xA;  configuration: --enable-gpl --enable-version3 --enable-static --pkg-config=pkgconf --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libaribb24 --enable-libaribcaption --enable-libdav1d --enable-libdavs2 --enable-libuavs3d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libaom --enable-libjxl --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libharfbuzz --enable-liblensfun --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-dxva2 --enable-d3d11va --enable-libvpl --enable-libshaderc --enable-vulkan --enable-libplacebo --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libcodec2 --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint&#xA;  libavutil      58. 32.100 / 58. 32.100&#xA;  libavcodec     60. 35.100 / 60. 35.100&#xA;  libavformat    60. 18.100 / 60. 18.100&#xA;  libavdevice    60.  4.100 / 60.  4.100&#xA;  libavfilter     9. 14.100 /  9. 14.100&#xA;  libswscale      7.  6.100 /  7.  6.100&#xA;  libswresample   4. 13.100 /  4. 13.100&#xA;  libpostproc    57.  4.100 / 57.  4.100&#xA;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from &#x27;cine.mp4&#x27;:&#xA;  Metadata:&#xA;    major_brand     : mp42&#xA;    minor_version   : 19529864&#xA;    compatible_brands: mp42isom&#xA;    creation_time   : 2024-02-19T21:01:10.000000Z&#xA;  Duration: 00:01:00.00, start: 0.000000, bitrate: 9245 kb/s&#xA;  Stream #0:0[0x1](eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p(progressive), 720x576 [SAR 35:32 DAR 175:128], 9243 kb/s, 25 fps, 25 tbr, 25 tbn (default)&#xA;    Metadata:&#xA;      creation_time   : 2024-02-19T21:01:10.000000Z&#xA;      handler_name    : Video Media Handler&#xA;      vendor_id       : [0][0][0][0]&#xA;      encoder         : AVC Coding&#xA;

    &#xA;