My device has a video length cap of a bit over 10 minutes. I'd like to share the video without having to make multiple parts, thus collating them beforehand. Since the videos have the same configuration, as can be seen below, is there a way to do so with little processing--without--cutting the length of either? If for some reason, one would need to either cut or extend one of the parts to append another, I'd go with extending, even if it means the screen being fixed for a couple seconds, preferably allowing that frozen frame to be customized (ie inserting a text) ?
Thank you kindly
Code:General Complete name : [begins the same]_01.mp4 Format : MPEG-4 Format profile : Base Media Codec ID : isom (isom/iso2/avc1/mp41) File size : 3.51 GiB Duration : 10 min 26 s Overall bit rate : 48.2 Mb/s Writing application : Lavf58.20.100 Video ID : 1 Format : AVC Format/Info : Advanced Video Codec Format profile : High@L5.1 Format settings : CABAC / 1 Ref Frames Format settings, CABAC : Yes Format settings, Reference frames : 1 frame Format settings, GOP : M=1, N=30 Codec ID : avc1 Codec ID/Info : Advanced Video Coding Duration : 10 min 26 s Bit rate : 47.9 Mb/s Width : 3 840 pixels Height : 1 080 pixels Display aspect ratio : 16:9 Original display aspect ratio : 3.556 Frame rate mode : Variable Frame rate : 60.000 FPS Minimum frame rate : 59.840 FPS Maximum frame rate : 60.160 FPS Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Progressive Bits/(Pixel*Frame) : 0.192 Stream size : 3.49 GiB (99%) Title : SStar Video Codec configuration box : avcC Audio ID : 2 Format : AAC LC Format/Info : Advanced Audio Codec Low Complexity Codec ID : mp4a-40-2 Duration : 10 min 26 s Bit rate mode : Constant Bit rate : 140 kb/s Channel(s) : 2 channels Channel layout : L R Sampling rate : 48.0 kHz Frame rate : 46.875 FPS (1024 SPF) Compression mode : Lossy Stream size : 10.4 MiB (0%) Title : SStar Audio Default : Yes Alternate group : 1Update 1Code:General Complete name : [begins the same]_02.mp4 Format : MPEG-4 Format profile : Base Media Codec ID : isom (isom/iso2/avc1/mp41) File size : 1.61 GiB Duration : 4 min 46 s Overall bit rate : 48.3 Mb/s Writing application : Lavf58.20.100 Video ID : 1 Format : AVC Format/Info : Advanced Video Codec Format profile : High@L5.1 Format settings : CABAC / 1 Ref Frames Format settings, CABAC : Yes Format settings, Reference frames : 1 frame Format settings, GOP : M=1, N=30 Codec ID : avc1 Codec ID/Info : Advanced Video Coding Duration : 4 min 46 s Bit rate : 48.0 Mb/s Width : 3 840 pixels Height : 1 080 pixels Display aspect ratio : 16:9 Original display aspect ratio : 3.556 Frame rate mode : Variable Frame rate : 60.000 FPS Minimum frame rate : 59.880 FPS Maximum frame rate : 60.120 FPS Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Progressive Bits/(Pixel*Frame) : 0.193 Stream size : 1.60 GiB (99%) Title : SStar Video Codec configuration box : avcC Audio ID : 2 Format : AAC LC Format/Info : Advanced Audio Codec Low Complexity Codec ID : mp4a-40-2 Duration : 4 min 46 s Bit rate mode : Constant Bit rate : 140 kb/s Channel(s) : 2 channels Channel layout : L R Sampling rate : 48.0 kHz Frame rate : 46.875 FPS (1024 SPF) Compression mode : Lossy Stream size : 4.77 MiB (0%) Title : SStar Audio Default : Yes Alternate group : 1
The initial title was "Append continuations of the same configuration with little processing?" and I changed it to "Append continuations of the same configuration + volume change?" as I'm about to explain in my 2nd post in this thread.
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Last edited by DynVec; 1st Aug 2022 at 23:06. Reason: Title change + explanation.
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ffmpeg can do that. See https://trac.ffmpeg.org/wiki/Concatenate
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I did
ffmpeg.exe -f concat -i Bernie_Gurberg_interview_at_Dollar_Cinéma-220725.txt -c copy Bernie_Gurberg_interview_at_Dollar_Cinéma-220725.mp4
However when I created this thread I didn't have in mind that I was watching the originals with the player software volume at 200%. So I need to do the increase the audio accordingly as many users wouldn't be able to properly hear the video on Youtube and the like. I then triedffmpeg.exe -f concat -i Bernie_Gurberg_interview_at_Dollar_Cinéma-220725.txt -filter:a "volume=2" -c copy Bernie_Gurberg_interview_at_Dollar_Cinéma-220725-volume_2X.mp4
Filtergraph 'volume=2' was defined for audio output stream 0:1 but codec copy was selected.
Filtering and streamcopy cannot be used together.
Is there a way for the video to do the same as the original command, but tweak the command so only the audio will change? From what I'm looking to do, if I extracted audio & video, both video would be the same, and the 2 audios would be different (from one another).
Thank you kindlyLast edited by DynVec; 1st Aug 2022 at 23:27.
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I haven't worked much with concat but this should work. -c:v copy
Code:ffmpeg.exe -i input.mp4 -filter:a "volume=2" -c:v copy output.mp4
Code:ffmpeg.exe -f concat -i Bernie_Gurberg_interview_at_Dollar_Cinéma-220725.txt -filter:a "volume=2" -c:v copy Bernie_Gurberg_interview_at_Dollar_Cinéma-220725-volume_2X.mp4
Last edited by cholla; 2nd Aug 2022 at 12:36.
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I can't guarantee the video for both version are the same but it very much look like it. I ended up doing a 3X volume afterward as 2X was still too soft. Here's the comparison of both outputs:
[Attachment 66196 - Click to enlarge]
Thanks again -
The videos look the same to me.
Glad it worked with concat.
I need to play around with concat some to learn it better.
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