different frame counts in the source and in the destination file

[Selur]

using:

ffmpeg -y -loglevel fatal -noautorotate -nostdin -threads 8 -i "C:\Users\Selur\Desktop\source.avi" -map 0:0 -an -sn -color_primaries bt470bg -color_trc smpte170m -colorspace bt470bg -color_range tv -pix_fmt yuv420p10le -strict -1 -vsync 0 -f yuv4mpegpipe - | NVEnc --y4m -i - --fps 29.970 --codec av1 --sar 1:1 --output-depth 10 --vbr 0 --vbr-quality 23.00 --aq --aq-strength 5 --aq-temporal --gop-len 0 --ref 7 --multiref-l0 3 --multiref-l1 3 --bframes 3 --bref-mode auto --mv-precision Q-pel --preset quality --colorrange limited --colormatrix bt470bg --cuda-schedule sync --output "J:\tmp\source_1_2024-03-01@18_33_03_4410_01.av1"

I get:

Video Count : 391 Count of stream of this kind : 1 Kind of stream : Video Kind of stream : Video Stream identifier : 0 StreamOrder : 0 ID : 1 ID : 1 Format : AV1 Format : AV1 Format/Info : AOMedia Video 1 Format/Url : http://aomedia.org/ Commercial name : AV1 Format profile : Main@L3.0 Codec ID : av01 Duration : 14847 Duration : 14 s 847 ms Duration : 14 s 847 ms Duration : 14 s 847 ms Duration : 00:00:14.847 Duration : 00:00:14;25 Duration : 00:00:14.847 (00:00:14;25) Bit rate : 2910402 Bit rate : 2 910 kb/s Maximum bit rate : 3555928 Maximum bit rate : 3 556 kb/s Width : 640 Width : 640 pixels Height : 480 Height : 480 pixels Sampled_Width : 640 Sampled_Height : 480 Pixel aspect ratio : 1.000 Display aspect ratio : 1.333 Display aspect ratio : 4:3 Rotation : 0.000 Frame rate mode : CFR Frame rate mode : Constant Frame rate : 29.970 Frame rate : 29.970 (30000/1001) FPS FrameRate_Num : 30000 FrameRate_Den : 1001 Frame count : 445 Color space : YUV Chroma subsampling : 4:2:0 Chroma subsampling : 4:2:0 Bit depth : 10 Bit depth : 10 bits Bits/(Pixel*Frame) : 0.316 Stream size : 5401773 Stream size : 5.15 MiB (100%) Stream size : 5 MiB Stream size : 5.2 MiB Stream size : 5.15 MiB Stream size : 5.152 MiB Stream size : 5.15 MiB (100%) Proportion of this stream : 0.99949 Encoded date : 2024-03-01 17:33:07 UTC Tagged date : 2024-03-01 17:33:07 UTC colour_description_present : Yes colour_description_present_Source : Container / Stream Color range : Limited colour_range_Source : Container / Stream colour_primaries_Source : Container / Stream transfer_characteristics_Source : Container / Stream Matrix coefficients : BT.470 System B/G matrix_coefficients_Source : Container / Stream Codec configuration box : av1C

using:

ffmpeg -y -loglevel fatal -noautorotate -nostdin -threads 8 -i "C:\Users\Selur\Desktop\source.avi" -map 0:0 -an -sn -color_primaries bt470bg -color_trc smpte170m -colorspace bt470bg -color_range tv -pix_fmt yuv420p -vsync 0 -f yuv4mpegpipe - | NVEnc --y4m -i - --fps 29.970 --codec h264 --profile high --level auto --sar 1:1 --lookahead 16 --vbr 0 --vbr-quality 23.00 --aq --aq-strength 5 --aq-temporal --gop-len 0 --ref 7 --multiref-l0 3 --multiref-l1 3 --bframes 3 --direct auto --bref-mode auto --mv-precision Q-pel --cabac --deblock --preset quality --colorrange limited --colormatrix bt470bg --cuda-schedule sync --output "J:\tmp\h264_1_2024-03-01@18_35_47_9610_01.264"

Video Count : 392 Count of stream of this kind : 1 Kind of stream : Video Kind of stream : Video Stream identifier : 0 StreamOrder : 0 ID : 1 ID : 1 Format : AVC Format : AVC Format/Info : Advanced Video Codec Format/Url : http://developers.videolan.org/x264.html Commercial name : AVC Format profile : High@L3.1 Format settings : CABAC / 7 Ref Frames Format settings, CABAC : Yes Format settings, CABAC : Yes Format settings, Reference frames : 7 Format settings, Reference frames : 7 frames Internet media type : video/H264 Codec ID : avc1 Codec ID/Info : Advanced Video Coding Duration : 14847 Duration : 14 s 847 ms Duration : 14 s 847 ms Duration : 14 s 847 ms Duration : 00:00:14.847 Duration : 00:00:14;25 Duration : 00:00:14.847 (00:00:14;25) Bit rate : 2305894 Bit rate : 2 306 kb/s Maximum bit rate : 2899272 Maximum bit rate : 2 899 kb/s Width : 640 Width : 640 pixels Height : 480 Height : 480 pixels Sampled_Width : 640 Sampled_Height : 480 Pixel aspect ratio : 1.000 Display aspect ratio : 1.333 Display aspect ratio : 4:3 Rotation : 0.000 Frame rate mode : CFR Frame rate mode : Constant Frame rate : 29.970 Frame rate : 29.970 (30000/1001) FPS FrameRate_Num : 30000 FrameRate_Den : 1001 Frame count : 445 Color space : YUV Chroma subsampling : 4:2:0 Chroma subsampling : 4:2:0 Bit depth : 8 Bit depth : 8 bits Scan type : Progressive Scan type : Progressive Bits/(Pixel*Frame) : 0.250 Stream size : 4279791 Stream size : 4.08 MiB (100%) Stream size : 4 MiB Stream size : 4.1 MiB Stream size : 4.08 MiB Stream size : 4.082 MiB Stream size : 4.08 MiB (100%) Proportion of this stream : 0.99893 Encoded date : 2024-03-01 17:35:54 UTC Tagged date : 2024-03-01 17:35:54 UTC colour_description_present : Yes colour_description_present_Source : Container / Stream Color range : Limited colour_range_Source : Container / Stream colour_primaries_Source : Container / Stream transfer_characteristics_Source : Container / Stream Matrix coefficients : BT.470 System B/G matrix_coefficients_Source : Container / Stream mdhd_Duration : 14915 Codec configuration box : avcC

Using:

ffmpeg -y -loglevel fatal -noautorotate -nostdin -threads 8 -i "C:\Users\Selur\Desktop\source.avi" -map 0:0 -an -sn -color_primaries bt470bg -color_trc smpte170m -colorspace bt470bg -color_range tv -pix_fmt yuv420p -vsync 0 -f yuv4mpegpipe - | NVEnc --y4m -i - --fps 29.970 --codec h264 --profile high --level auto --sar 1:1 --lookahead 16 --cqp 20:23:25 --aq --aq-strength 5 --aq-temporal --gop-len 0 --ref 7 --multiref-l0 3 --multiref-l1 3 --bframes 3 --direct auto --bref-mode auto --mv-precision Q-pel --cabac --deblock --preset quality --colorrange limited --colormatrix bt470bg --cuda-schedule sync --output "J:\tmp\h264_const_quant_1_2024-03-01@18_39_08_9610_01.264"

I get:

Video Count : 392 Count of stream of this kind : 1 Kind of stream : Video Kind of stream : Video Stream identifier : 0 StreamOrder : 0 ID : 1 ID : 1 Format : AVC Format : AVC Format/Info : Advanced Video Codec Format/Url : http://developers.videolan.org/x264.html Commercial name : AVC Format profile : High@L3.1 Format settings : CABAC / 7 Ref Frames Format settings, CABAC : Yes Format settings, CABAC : Yes Format settings, Reference frames : 7 Format settings, Reference frames : 7 frames Internet media type : video/H264 Codec ID : avc1 Codec ID/Info : Advanced Video Coding Duration : 14847 Duration : 14 s 847 ms Duration : 14 s 847 ms Duration : 14 s 847 ms Duration : 00:00:14.847 Duration : 00:00:14;25 Duration : 00:00:14.847 (00:00:14;25) Bit rate : 2705904 Bit rate : 2 706 kb/s Maximum bit rate : 3336200 Maximum bit rate : 3 336 kb/s Width : 640 Width : 640 pixels Height : 480 Height : 480 pixels Sampled_Width : 640 Sampled_Height : 480 Pixel aspect ratio : 1.000 Display aspect ratio : 1.333 Display aspect ratio : 4:3 Rotation : 0.000 Frame rate mode : CFR Frame rate mode : Constant Frame rate : 29.970 Frame rate : 29.970 (30000/1001) FPS FrameRate_Num : 30000 FrameRate_Den : 1001 Frame count : 445 Color space : YUV Chroma subsampling : 4:2:0 Chroma subsampling : 4:2:0 Bit depth : 8 Bit depth : 8 bits Scan type : Progressive Scan type : Progressive Bits/(Pixel*Frame) : 0.294 Stream size : 5022219 Stream size : 4.79 MiB (100%) Stream size : 5 MiB Stream size : 4.8 MiB Stream size : 4.79 MiB Stream size : 4.790 MiB Stream size : 4.79 MiB (100%) Proportion of this stream : 0.99909 Encoded date : 2024-03-01 17:39:41 UTC Tagged date : 2024-03-01 17:39:41 UTC colour_description_present : Yes colour_description_present_Source : Container / Stream Color range : Limited colour_range_Source : Container / Stream colour_primaries_Source : Container / Stream transfer_characteristics_Source : Container / Stream Matrix coefficients : BT.470 System B/G matrix_coefficients_Source : Container / Stream mdhd_Duration : 14915 Codec configuration box : avcC

using different containers mp4/mkv doesn't change the output.

=> can't reproduce

Cu Selur