[FFmpeg-user] Copying a matroska container including the attachement
Hi there, What would(should?) be the right command to copy an mkv file (including the attachment). I tried a naive: ffmpeg -i input.mkv -map 0 -map_metadata 0 -c copy output.mkv The attachment information gets lost (the jpg seems to be still there though). Thanks, -- Mathieu ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] metadata: 'date' behavior in avi/mp4 vs mkv containers
On Wed, Dec 2, 2020 at 9:26 AM Mathieu Malaterre wrote: > > Hi there, > > I am trying to find the documentation for a specific metadata tag: > 'date'. According to the following page: > > * https://wiki.multimedia.cx/index.php/FFmpeg_Metadata Here is a small reproducer. Let's consider the following reference: * https://www.matroska.org/technical/tagging.html#temporal-information In particular the line: "DATE_RECORDED UTF-8 The time that the recording began. This is akin to the TDRC tag in ID3." Steps: $ wget http://samples.mplayerhq.hu/A-codecs/lossless/luckynight.flac $ ffmpeg -i luckynight.flac test1.mp3 $ ffmpeg -i test1.mp3 test2.mkv Gives: $ exiftool -v3 -l test1.mp3| grep -1 TDRC | RecordingTime = 1995 | - Tag 'TDRC' (6 bytes): | 0101: 03 31 39 39 35 00 [.1995.] While: $ exiftool -v3 -l test2.mkv| grep -3 1995 | | | | TagName = DATE | | | | - Tag 0x05a3 (4 bytes): | | | | 1292: 44 41 54 45 [DATE] | | | | TagString = 1995 | | | | - Tag 0x0487 (4 bytes): | | | | 1299: 31 39 39 35 [1995] | | | + [SimpleTag directory, 21 bytes] | | | | TagName = GENRE | | | | - Tag 0x05a3 (5 bytes): So in summary ID3:TDRC is being copied to Matroska:SimpleTag:DATE, however the specification seems to indicate that in this case 'DATE_RECORDED' should be prefered. > ffmpeg has a built-in mechanism for tag: 'title'. I also see that my > ffmpeg version has the same property for tag 'date' but only for a > round trip mp4 ⇔ avi. This property does not work with an mkv > container. > > Is this pure luck that tag 'date' is transferred from avi to mp4 & mp4 > to avi ? Should it work the same way for mkv container ? > > Thanks for clarification, > > For reference: > > ./ffmpeg -version > ffmpeg version N-100064-g3c92268 Copyright (c) 2000-2020 the FFmpeg developers > built with gcc 8 (Debian 8.3.0-6) > configuration: --prefix=/home/mathieu/ffmpeg_build > --pkg-config-flags=--static > --extra-cflags=-I/home/mathieu/ffmpeg_build/include > --extra-ldflags=-L/home/mathieu/ffmpeg_build/lib > --extra-libs='-lpthread -lm' --bindir=/home/mathieu/bin --enable-gpl > --enable-gnutls --disable-libaom --enable-libass --enable-libfdk-aac > --enable-libfreetype --enable-libmp3lame --enable-libopus > --disable-libsvtav1 --enable-libvorbis --enable-libvpx > --enable-libx264 --enable-libx265 --enable-nonfree > libavutil 56. 61.100 / 56. 61.100 > libavcodec 58.113.100 / 58.113.100 > libavformat58. 64.100 / 58. 64.100 > libavdevice58. 11.103 / 58. 11.103 > libavfilter 7. 91.100 / 7. 91.100 > libswscale 5. 8.100 / 5. 8.100 > libswresample 3. 8.100 / 3. 8.100 > libpostproc55. 8.100 / 55. 8.100 The above steps where run using: $ ffmpeg -version ffmpeg version N-100132-g53b4550bdd Copyright (c) 2000-2020 the FFmpeg developers built with gcc 8 (Debian 8.3.0-6) configuration: --prefix=/home/mathieu/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/home/mathieu/ffmpeg_build/include --extra-ldflags=-L/home/mathieu/ffmpeg_build/lib --extra-libs='-lpthread -lm' --bindir=/home/mathieu/bin --enable-gpl --enable-gnutls --enable-libaom --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --disable-libsvtav1 --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-nonfree libavutil 56. 61.100 / 56. 61.100 libavcodec 58.114.100 / 58.114.100 libavformat58. 64.100 / 58. 64.100 libavdevice58. 11.103 / 58. 11.103 libavfilter 7. 91.100 / 7. 91.100 libswscale 5. 8.100 / 5. 8.100 libswresample 3. 8.100 / 3. 8.100 libpostproc55. 8.100 / 55. 8.100 -- Mathieu ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] MKV To MP4
John, On Thu, Dec 3, 2020 at 9:51 AM John Henderson via ffmpeg-user wrote: > > Hi there, > > I am not sure whether this is a windows media player issue or FFMPEG. I am > using ffmpeg to capture the screen and record audio, whilst playing games. > It does a great job and I save the file as an mkv. I can convert the file > to mp4 and all seems fine. However when I try to play the file with > windows media player version 12.019 etc. I get "network is too busy to play > file at original quality" and it just sits there doing nothing. If i open > windows media player classic, it plays the mp4 file perfectly with no > problems at all. This is the ffmpeg command I used to convert the mkv file > to mp4 > > ffmpeg -i laptop.mkv -c copy laptop.mp4 I would at least give it another try using: -movflags +faststart * https://trac.ffmpeg.org/wiki/Encode/H.264#AdditionalInformationTips => faststart for web video > Is it possible that it may be the command I used to create the MKV file > shown below. > > "/k ffmpeg.exe -y -probesize 10M -rtbufsize 1500M -f dshow -i audio=""" & > Audio_name & """ -acodec pcm_s16le -f gdigrab -framerate 60 -i desktop > -vcodec libx264 -qp 0 -threads 0 -crf 18 -preset ultrafast -tune > zerolatency " myFile.mkv" > > Or is it windows media player 12.0 ?? > > Any help with this will be really appreciated. Thanks > > All the best, > > John > ___ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". 2cts -- Mathieu ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
[FFmpeg-user] metadata: 'date' behavior in avi/mp4 vs mkv containers
Hi there, I am trying to find the documentation for a specific metadata tag: 'date'. According to the following page: * https://wiki.multimedia.cx/index.php/FFmpeg_Metadata ffmpeg has a built-in mechanism for tag: 'title'. I also see that my ffmpeg version has the same property for tag 'date' but only for a round trip mp4 ⇔ avi. This property does not work with an mkv container. Is this pure luck that tag 'date' is transferred from avi to mp4 & mp4 to avi ? Should it work the same way for mkv container ? Thanks for clarification, For reference: ./ffmpeg -version ffmpeg version N-100064-g3c92268 Copyright (c) 2000-2020 the FFmpeg developers built with gcc 8 (Debian 8.3.0-6) configuration: --prefix=/home/mathieu/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/home/mathieu/ffmpeg_build/include --extra-ldflags=-L/home/mathieu/ffmpeg_build/lib --extra-libs='-lpthread -lm' --bindir=/home/mathieu/bin --enable-gpl --enable-gnutls --disable-libaom --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --disable-libsvtav1 --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-nonfree libavutil 56. 61.100 / 56. 61.100 libavcodec 58.113.100 / 58.113.100 libavformat58. 64.100 / 58. 64.100 libavdevice58. 11.103 / 58. 11.103 libavfilter 7. 91.100 / 7. 91.100 libswscale 5. 8.100 / 5. 8.100 libswresample 3. 8.100 / 3. 8.100 libpostproc55. 8.100 / 55. 8.100 -- Mathieu ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] 2nd pass has more frames than 1st pass (99021)2kbits/s dup=27 drop=0 speed=4.76x
On Tue, Dec 1, 2020 at 12:42 AM Carl Eugen Hoyos wrote: > > Am Mo., 30. Nov. 2020 um 08:57 Uhr schrieb Mathieu Malaterre > : > > > > > $ ffmpeg -y -i input.avi -c:v libx264 -b:v 1321894 -pass 1 -an -f null > > > > /dev/null && \ > > > > ffmpeg -y -i input.avi -c:v libx264 -b:v 1321894 -pass 2 -c:a aac -b:a > > > > 128k fixed.mp4 > > > > > > This cannot work (and this is not related to the fact that you are not > > > using a version of FFmpeg that we support here). > > > > > > In some cases - if you are lucky - there is a crash and no output file > > > is written, in other cases, a "broken" output file is written, broken in > > > the sense that two-pass encoding did not work the way it is supposed > > > to (more bitrate was given to frames that do not need it). > > > > > > Do not use -an on the first pass and add "-vsync cfr" to the first pass. > > > (Other workarounds are possible.) > > > > Confirmed. The above suggestion does fix the symptoms. > > I would say it fixes the cause. Point taken :) I have to admit I fail to understand the root cause, I'll do my homework and eventually figure that out. Thanks. > > Did you base your suggestion on: > > > > "Error while decoding stream #0:1: Invalid data found when processing > > input" ? > > No, I know that there are many guides suggesting to use -f null for two-pass > encoding with FFmpeg where the second pass outputs to mov, these guides > are typically broken. I see. I assumed that pages from domain ffmpeg.org, could be considered universal solutions, until I realized anyone could edit it. I've copy/pasted your comment above for the future readers: * https://trac.ffmpeg.org/wiki/Encode/H.264?action=diff&version=77&old_version=76 > > > For future questions: Do not cut FFmpeg's console output, only > > > post ffprobe output if you see an issue with it. > > > > > > Not really related: > > > > Does it make sense to simply copy/paste the existing bit_rate to > > > > re-encode it ? > > > > > > No, to the best of my knowledge, it makes no sense whatsoever. > > > > > > Very generally you either want a specific output quality, in this > > > case specifying a bitrate and two-pass encoding make no > > > sense. > > > Or you have a particular size requirement for the output file, > > > then bitrate and two-pass encoding make sense. > > > > Are you saying that taking the original file size as size requirement > > is the whole issue ? > > Partly. > If you need the original file size (but for example another codec) then > two-pass encoding should provide the best quality (if done correctly). > > But this is an extremely unlikely use case since DVD's are less > popular to store videos. Nowadays, what you (likely) want is to > specify an output quality (how depends on the encoder) and let > the encoder decide how to produce the quality you requested. Understood. I was disappointed with something as simple as: $ ffmpeg -i input.avi -c:v libx264 -preset slow -crf 18 -c:a copy output.mkv Sometimes the output.mkv file was very close in size to the original input.avi, sometimes it would double in size (again I am missing the background to have a proper diagnosis). So I tried the two pass solution to have a finer control. > Carl Eugen > ___ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". -- Mathieu ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] 2nd pass has more frames than 1st pass (99021)2kbits/s dup=27 drop=0 speed=4.76x
Carl Eugen, Thanks for taking the time to answer my questions. On Sun, Nov 29, 2020 at 7:40 PM Carl Eugen Hoyos wrote: > > Am So., 29. Nov. 2020 um 16:32 Uhr schrieb Mathieu Malaterre > : > > > $ ffmpeg -y -i input.avi -c:v libx264 -b:v 1321894 -pass 1 -an -f null > > /dev/null && \ > > ffmpeg -y -i input.avi -c:v libx264 -b:v 1321894 -pass 2 -c:a aac -b:a > > 128k fixed.mp4 > > This cannot work (and this is not related to the fact that you are not > using a version of FFmpeg that we support here). > > In some cases - if you are lucky - there is a crash and no output file > is written, in other cases, a "broken" output file is written, broken in > the sense that two-pass encoding did not work the way it is supposed > to (more bitrate was given to frames that do not need it). > > Do not use -an on the first pass and add "-vsync cfr" to the first pass. > (Other workarounds are possible.) Confirmed. The above suggestion does fix the symptoms. Did you base your suggestion on: "Error while decoding stream #0:1: Invalid data found when processing input" ? > For future questions: Do not cut FFmpeg's console output, only > post ffprobe output if you see an issue with it. > > Not really related: > > Does it make sense to simply copy/paste the existing bit_rate to > > re-encode it ? > > No, to the best of my knowledge, it makes no sense whatsoever. > > Very generally you either want a specific output quality, in this > case specifying a bitrate and two-pass encoding make no > sense. > Or you have a particular size requirement for the output file, > then bitrate and two-pass encoding make sense. Are you saying that taking the original file size as size requirement is the whole issue ? If I follow the guide again and do the computation as described, the bitrate value is just very slightly different: >>> 690*8192./(3600+6*60+2) - 128 1298.673397274104 Assuming my mp3 audio did not have any particular problem, would there be an actual difference in between using -b:v 1298k vs -b:v 1321894 ? Thanks again, > Carl Eugen > ___ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". -- Mathieu ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
[FFmpeg-user] 2nd pass has more frames than 1st pass (99021)2kbits/s dup=27 drop=0 speed=4.76x
Hi there,
I am staring at the following guide to re-encode an existing avi
(mpeg4+mp3) into MP4 (h264+aac):
https://trac.ffmpeg.org/wiki/Encode/H.264#twopass
My video is such that:
$ ffprobe -show_streams -show_format -print_format json -i input.avi
[...]
Input #0, avi, from 'input.avi':
Duration: 01:06:01.97, start: 0.00, bitrate: 1459 kb/s
Stream #0:0: Video: mpeg4 (DIVX / 0x58564944), yuv420p, 640x480,
1321 kb/s, 24.99 fps, 25 tbr, 24.99 tbn, 30k tbc
Stream #0:1: Audio: mp3 (U[0][0][0] / 0x0055), 44100 Hz, stereo,
fltp, 127 kb/s
"streams": [
{
"index": 0,
"codec_name": "mpeg4",
"bit_rate": "1321894",
...
"index": 1,
"codec_name": "mp3",
"bit_rate": "127704",
...
"format": {
"format_name": "avi",
"bit_rate": "1459407",
Does it make sense to simply copy/paste the existing bit_rate to
re-encode it ? Or did I miss something from the guide (I find it hard
to make sense of the error message given) ?
In my case, the following command:
$ ffmpeg -y -i input.avi -c:v libx264 -b:v 1321894 -pass 1 -an -f null
/dev/null && \
ffmpeg -y -i input.avi -c:v libx264 -b:v 1321894 -pass 2 -c:a aac -b:a
128k fixed.mp4
gives:
ffmpeg version 4.1.6-1~deb10u1 Copyright (c) 2000-2020 the FFmpeg developers
built with gcc 8 (Debian 8.3.0-6)
configuration: --prefix=/usr --extra-version='1~deb10u1'
--toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu
--incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl
--disable-stripping --enable-avresample --disable-filter=resample
--enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom
--enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca
--enable-libcdio --enable-libcodec2 --enable-libflite
--enable-libfontconfig --enable-libfreetype --enable-libfribidi
--enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame
--enable-libmysofa --enable-libopenjpeg --enable-libopenmpt
--enable-libopus --enable-libpulse --enable-librsvg
--enable-librubberband --enable-libshine --enable-libsnappy
--enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora
--enable-libtwolame --enable-libvidstab --enable-libvorbis
--enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265
--enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi
--enable-lv2 --enable-omx --enable-openal --enable-opengl
--enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883
--enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
libavutil 56. 22.100 / 56. 22.100
libavcodec 58. 35.100 / 58. 35.100
libavformat58. 20.100 / 58. 20.100
libavdevice58. 5.100 / 58. 5.100
libavfilter 7. 40.101 / 7. 40.101
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 3.100 / 5. 3.100
libswresample 3. 3.100 / 3. 3.100
libpostproc55. 3.100 / 55. 3.100
[mpeg4 @ 0x563b663d7580] looks like this file was encoded with
(divx4/(old)xvid/opendivx) -> forcing low_delay flag
Input #0, avi, from 'input.avi':
Duration: 01:06:01.97, start: 0.00, bitrate: 1459 kb/s
Stream #0:0: Video: mpeg4 (DIVX / 0x58564944), yuv420p, 640x480,
1321 kb/s, 24.99 fps, 25 tbr, 24.99 tbn, 30k tbc
Stream #0:1: Audio: mp3 (U[0][0][0] / 0x0055), 44100 Hz, stereo,
fltp, 127 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (mpeg4 (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[mpeg4 @ 0x563b667c5040] looks like this file was encoded with
(divx4/(old)xvid/opendivx) -> forcing low_delay flag
[libx264 @ 0x563b667c8380] using cpu capabilities: MMX2 SSE2Fast SSSE3
SSE4.2 AVX
[libx264 @ 0x563b667c8380] profile Main, level 3.0
Output #0, null, to '/dev/null':
Metadata:
encoder : Lavf58.20.100
Stream #0:0: Video: h264 (libx264), yuv420p, 640x480, q=-1--1,
1321 kb/s, 25 fps, 25 tbn, 25 tbc
Metadata:
encoder : Lavc58.35.100 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/1321000 buffer size: 0 vbv_delay: -1
[mpeg4 @ 0x563b667c5040] Error at MB: 11510:57:03.56 bitrate=N/A speed=12.5x
[mpeg4 @ 0x563b667c5040] I cbpc damaged at 8 27
[mpeg4 @ 0x563b667c5040] Error at MB: 1115
[mpeg4 @ 0x563b667c5040] marker does not match f_code
Last message repeated 23 times
[mpeg4 @ 0x563b667c5040] concealing 1200 DC, 1200 AC, 1200 MV errors in I frame
[mpeg4 @ 0x563b667c5a40] P cbpy damaged at 8 0:45.68 bitrate=N/A speed=12.5x
[mpeg4 @ 0x563b667c5a40] Error at MB: 8
[mpeg4 @ 0x563b667c5a40] marker does not match f_code
Last message repeated 4 times
[mpeg4 @ 0x563b667c5a40] P cbpy damaged at 22 8
[mpeg4 @ 0x563b667c5a40] Error at MB: 350
[mpeg4 @ 0x563b667c5a40] marker does not match f_code
Last message repeated 7 times
[mpeg4 @ 0x563b667c5a40] P cbpy damaged at 17 8
[mpeg4 @ 0x563b667c5a40] Error at MB: 345
[mpeg4 @ 0x563b667c5a40] marker does not match f_code
Last message repeated 5 times
[mpeg4 @ 0x563b667c5a40] concealing 1200 DC, 1200 AC, 1200 MV errors
Re: [FFmpeg-user] Repair/Fix an mpeg4 bitstream
Carl Eugen, On Thu, Nov 26, 2020 at 10:51 PM Carl Eugen Hoyos wrote: > > Am Do., 26. Nov. 2020 um 08:58 Uhr schrieb Mathieu Malaterre > : > > > I am trying to repair an mpeg4 (mastroka container with mpeg4+mp3) > > movie. The movie runs smoothly when played with mpv, but appears to > > have a different frame rate when played with ffplay. > > > > Is there a magical option to fix/repair this file ? If not how do I > > re-encode it as-close as possible to the original one ? > > > > Typical output: > > > > $ ffmpeg -y -hide_banner -i input.mkv -c copy output.mkv > > When asking for help here, never use -hide_banner unless > you want to report an issue with that option. Understood. My point was to be as concise as possible. > Please test current FFmpeg git head, if the issue is reproducible, > feel free to provide a sample file. Issue #9013 Hopefully someone will be able to make sense of the formulation 'freeze' or 'stop-and-go' I used in the issue description. > Since the file was apparently created with FFmpeg, the more > interesting issue is: How was the input file created? Good question. I did not create this movie. I was simply trying to attach metadata to this file and discovered the non-monotonous DTS warning. I've been struggling to find a way to re-encode it properly since. > Carl Eugen > ___ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". -- Mathieu ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
[FFmpeg-user] Repair/Fix an mpeg4 bitstream
Hi there, I am trying to repair an mpeg4 (mastroka container with mpeg4+mp3) movie. The movie runs smoothly when played with mpv, but appears to have a different frame rate when played with ffplay. Is there a magical option to fix/repair this file ? If not how do I re-encode it as-close as possible to the original one ? Typical output: $ ffmpeg -y -hide_banner -i input.mkv -c copy output.mkv [mpeg4 @ 0x55983b4d4900] Failed to parse extradata Input #0, matroska,webm, from 'input.mkv': Metadata: ENCODER : Lavf58.20.100 Duration: 01:07:47.92, start: 0.00, bitrate: 1433 kb/s Stream #0:0: Video: mpeg4 (Advanced Simple Profile), yuv420p, 688x512 [SAR 1:1 DAR 43:32], 25 fps, 25 tbr, 1k tbn, 25 tbc (default) Metadata: DURATION: 01:07:47.92000 Stream #0:1: Audio: mp3, 48000 Hz, stereo, fltp, 80 kb/s (default) Metadata: DURATION: 01:07:47.88000 Output #0, matroska, to 'output.mkv': Metadata: encoder : Lavf58.20.100 Stream #0:0: Video: mpeg4 (Advanced Simple Profile) (FMP4 / 0x34504D46), yuv420p, 688x512 [SAR 1:1 DAR 43:32], q=2-31, 25 fps, 25 tbr, 1k tbn, 1k tbc (default) Metadata: DURATION: 01:07:47.92000 Stream #0:1: Audio: mp3 (U[0][0][0] / 0x0055), 48000 Hz, stereo, fltp, 80 kb/s (default) Metadata: DURATION: 01:07:47.88000 Stream mapping: Stream #0:0 -> #0:0 (copy) Stream #0:1 -> #0:1 (copy) Press [q] to stop, [?] for help [matroska @ 0x5623e5235200] Non-monotonous DTS in output stream 0:0; previous: 120, current: 80; changing to 120. This may result in incorrect timestamps in the output file. [matroska @ 0x5623e5235200] Non-monotonous DTS in output stream 0:0; previous: 200, current: 160; changing to 200. This may result in incorrect timestamps in the output file. [...] [matroska @ 0x5623e5235200] Non-monotonous DTS in output stream 0:0; previous: 4067760, current: 4067720; changing to 4067760. This may result in incorrect timestamps in the output file. [matroska @ 0x5623e5235200] Non-monotonous DTS in output stream 0:0; previous: 4067840, current: 4067800; changing to 4067840. This may result in incorrect timestamps in the output file. frame=101697 fps=25330 q=-1.0 Lsize= 712029kB time=01:07:47.85 bitrate=1433.9kbits/s speed=1.01e+03x video:652268kB audio:57828kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.272119% For reference: $ mediainfo input.mkv General Unique ID: 32397768192667318044859340091939212367 (0x185F954BE5D18C685B5A2C008439CC4F) Complete name: input.mkv Format : Matroska Format version : Version 4 File size: 695 MiB Duration : 1 h 7 min Overall bit rate mode: Variable Overall bit rate : 1 434 kb/s Writing application : Lavf58.20.100 Writing library : Lavf58.20.100 ErrorDetectionType : Per level 1 Video ID : 1 Format : MPEG-4 Visual Format profile : Advanced Simple@L5 Format settings : BVOP1 Format settings, BVOP: 1 Format settings, QPel: No Format settings, GMC : No warppoints Format settings, Matrix : Default (H.263) Codec ID : V_MPEG4/ISO/ASP Codec ID/Info: Advanced Simple Profile Duration : 1 h 7 min Width: 688 pixels Height : 512 pixels Display aspect ratio : 4:3 Frame rate mode : Constant Frame rate : 25.000 FPS Color space : YUV Chroma subsampling : 4:2:0 Bit depth: 8 bits Scan type: Progressive Compression mode : Lossy Writing library : XviD 1.2.0.dev47 (UTC 2006-11-01) Default : Yes Forced : No Audio ID : 2 Format : MPEG Audio Format version : Version 1 Format profile : Layer 3 Format settings : Joint stereo Codec ID : A_MPEG/L3 Codec ID/Hint: MP3 Duration : 1 h 7 min Bit rate mode: Variable Channel(s) : 2 channels Sampling rate: 48.0 kHz Compressi
