different frame counts in the source and in the destination file

[Selur]

Unless I can reproduce the problem, I have no clue how to help.

Cu Selur

[i4004]

re-save that xvid+pcm source.avi of yours as some lossless video codec(that ffmpeg supports)+pcm in vdub, then try again....see if the 'interleave' parameters of mediainfo changed....on the bottom of "text" output.

slightly unorthodox combo there, xvid with b frames and pcm audio.

[Selur]

I converted the source.avi to fvhuff.avi

ffmpeg -y -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 -vcodec ffvhuff -coder 0 -context 0 -non_deterministic true -metadata encoding_tool="Hybrid 2024.03.01.1" "J:\tmp\ffvhuff_1_2024-03-02@08_03_46_4610_02.avi"

and got:

General Count : 349 Count of stream of this kind : 1 Kind of stream : General Kind of stream : General Stream identifier : 0 Count of video streams : 1 Count of audio streams : 1 Video_Format_List : HuffYUV Video_Format_WithHint_List : HuffYUV Codecs Video : HuffYUV Audio_Format_List : PCM Audio_Format_WithHint_List : PCM Audio codecs : PCM Audio_Channels_Total : 2 Complete name : g:\Output\ffvhuff.avi Folder name : g:\Output File name extension : ffvhuff.avi File name : ffvhuff File extension : avi Format : AVI Format : AVI Format/Info : Audio Video Interleave Format/Extensions usually used : avi Commercial name : AVI Format settings : PcmWaveformat Internet media type : video/vnd.avi Interleaved : Yes File size : 114173262 File size : 109 MiB File size : 109 MiB File size : 109 MiB File size : 109 MiB File size : 108.9 MiB Duration : 14882 Duration : 14 s 882 ms Duration : 14 s 882 ms Duration : 14 s 882 ms Duration : 00:00:14.882 Duration : 00:00:14;26 Duration : 00:00:14.882 (00:00:14;26) Overall bit rate : 61375225 Overall bit rate : 61.4 Mb/s Frame rate : 29.970 Frame rate : 29.970 FPS Frame count : 446 Stream size : 37582 Stream size : 36.7 KiB (0%) Stream size : 37 KiB Stream size : 37 KiB Stream size : 36.7 KiB Stream size : 36.70 KiB Stream size : 36.7 KiB (0%) Proportion of this stream : 0.00033 File creation date : 2024-03-02 07:03:50.649 UTC File creation date (local) : 2024-03-02 08:03:50.649 File last modification date : 2024-03-02 07:03:50.791 UTC File last modification date (local) : 2024-03-02 08:03:50.791 Writing application : Lavf60.20.100 Writing application : Lavf60.20.100 Video Count : 390 Count of stream of this kind : 1 Kind of stream : Video Kind of stream : Video Stream identifier : 0 StreamOrder : 0 ID : 0 ID : 0 Format : HuffYUV Format : HuffYUV Commercial name : HuffYUV Format version : Version 3 Codec ID : FFVH Codec ID/Url : http://ffdshow-tryout.sourceforge.net/ Duration : 14882 Duration : 14 s 882 ms Duration : 14 s 882 ms Duration : 14 s 882 ms Duration : 00:00:14.882 Duration : 00:00:14;26 Duration : 00:00:14.882 (00:00:14;26) Bit rate : 59824330 Bit rate : 59.8 Mb/s Width : 640 Width : 640 pixels Height : 480 Height : 480 pixels Pixel aspect ratio : 1.000 Display aspect ratio : 1.333 Display aspect ratio : 4:3 Frame rate : 29.970 Frame rate : 29.970 (30000/1001) FPS FrameRate_Num : 30000 FrameRate_Den : 1001 Frame count : 446 Color space : YUV Chroma subsampling : 4:2:0 Chroma subsampling : 4:2:0 Bit depth : 10 Bit depth : 10 bits Scan type : Progressive Scan type : Progressive Bits/(Pixel*Frame) : 6.498 Delay : 0 Delay : 00:00:00.000 Delay : 00:00:00;00 Delay : 00:00:00.000 (00:00:00;00) Stream size : 111284832 Stream size : 106 MiB (97%) Stream size : 106 MiB Stream size : 106 MiB Stream size : 106 MiB Stream size : 106.1 MiB Stream size : 106 MiB (97%) Proportion of this stream : 0.97470 Audio Count : 285 Count of stream of this kind : 1 Kind of stream : Audio Kind of stream : Audio Stream identifier : 0 StreamOrder : 1 ID : 1 ID : 1 Format : PCM Format : PCM Commercial name : PCM Format settings : Little / Signed Format settings, Endianness : Little Format settings, Sign : Signed Codec ID : 1 Codec ID/Url : http://www.microsoft.com/windows/ Duration : 14848 Duration : 14 s 848 ms Duration : 14 s 848 ms Duration : 14 s 848 ms Duration : 00:00:14.848 Duration : 00:00:14.848 Bit rate mode : CBR Bit rate mode : Constant Bit rate : 1536000 Bit rate : 1 536 kb/s Channel(s) : 2 Channel(s) : 2 channels Sampling rate : 48000 Sampling rate : 48.0 kHz Samples count : 712704 Bit depth : 16 Bit depth : 16 bits Delay : 0 Delay : 00:00:00.000 Delay : 00:00:00.000 Delay, origin : Stream Delay, origin : Raw stream Delay relative to video : 0 Delay relative to video : 00:00:00.000 Delay relative to video : 00:00:00.000 Stream size : 2850848 Stream size : 2.72 MiB (2%) Stream size : 3 MiB Stream size : 2.7 MiB Stream size : 2.72 MiB Stream size : 2.719 MiB Stream size : 2.72 MiB (2%) Proportion of this stream : 0.02497 Alignment : Aligned Alignment : Aligned on interleaves Interleave, duration : 0.64 Interleave, duration : 21 Interleave, duration : 21 ms (0.64 video frame

I noticed:
a. video frame count changed 'Frame count : 446' (not surprised, since b-frames in .avi is kind of 'hacky')
b. 'Interleave, duration' changed
Loading that file as source and looking at the source in the Vapoursynth/Avisynth Preview, as expected only (the original) 445 frames are there, so the actual frame count hasn't changed, just what mediainfo is reporting. (not surprised, since b-frames in .avi is kind of 'hacky')

Converting the video with NVEncC:

ffmpeg -y -loglevel fatal -noautorotate -nostdin -threads 8 -i "C:\Users\Selur\Desktop\ffvhuff.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\reencode_1_2024-03-02@08_13_31_2910_01.av1"

I get:

General Count : 349 Count of stream of this kind : 1 Kind of stream : General Kind of stream : General Stream identifier : 0 Count of video streams : 1 Video_Format_List : AV1 Video_Format_WithHint_List : AV1 Codecs Video : AV1 Complete name : g:\Output\reencode.mp4 Folder name : g:\Output File name extension : reencode.mp4 File name : reencode File extension : mp4 Format : MPEG-4 Format : MPEG-4 Format/Extensions usually used : braw mov mp4 m4v m4a m4b m4p m4r 3ga 3gpa 3gpp 3gp 3gpp2 3g2 k3g jpm jpx mqv ismv isma ismt f4a f4b f4v Commercial name : MPEG-4 Format profile : Base Media Internet media type : video/mp4 Codec ID : iso4 Codec ID : iso4 (iso4/av01) Codec ID/Url : http://www.apple.com/quicktime/download/standalone.html CodecID_Compatible : iso4/av01 File size : 5404547 File size : 5.15 MiB File size : 5 MiB File size : 5.2 MiB File size : 5.15 MiB File size : 5.154 MiB 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) Overall bit rate : 2912129 Overall bit rate : 2 912 kb/s Frame rate : 29.970 Frame rate : 29.970 FPS Frame count : 445 Stream size : 2774 Stream size : 2.71 KiB (0%) Stream size : 3 KiB Stream size : 2.7 KiB Stream size : 2.71 KiB Stream size : 2.709 KiB Stream size : 2.71 KiB (0%) Proportion of this stream : 0.00051 HeaderSize : 2690 DataSize : 5401781 FooterSize : 76 IsStreamable : Yes Encoded date : 2024-03-02 07:13:58 UTC Tagged date : 2024-03-02 07:13:58 UTC File creation date : 2024-03-02 07:13:58.684 UTC File creation date (local) : 2024-03-02 08:13:58.684 File last modification date : 2024-03-02 07:13:58.702 UTC File last modification date (local) : 2024-03-02 08:13:58.702 Writing application : Hybrid 2024.03.01.1 Writing application : Hybrid 2024.03.01.1 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 : 2024-03-02 07:13:58 UTC Tagged date : 2024-03-02 07:13:58 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

with the original frame count of 445.

=> still can't reproduce the problem here.
I would have understood that the frame count in the container, detected by mediainfo, changed if aac audio was used, but since you mentioned that not using the audio gives you the same result, that can't be it.
Side note: If mediaInfo mentions 'Frame Count' and 'Source Frame Count' the 'Source Frame Count' is the frame count indicated by the video stream itself and the 'Frame Count' is the frame count indicated by the container. (so, even in your case, the actual frame count has not changed, just what the container indicates)



Cu Selur

[i4004]

i ment original poster should do it, not you, nothing for you to do here, it's obviously issue of container from 1992 used(and abused) for all sorts of things.
but good thing you did it anyway...heh...

oh yeah, nothing could stop me from exactly inspecting which frames were added or removed, in 50 frame increments on timeline...