Re: [FFmpeg-user] Can't write packet with unknown timestamp
UPDATED On 04/24/2020 04:04 PM, Carl Eugen Hoyos wrote: Am Fr., 24. Apr. 2020 um 17:14 Uhr schrieb Edward Park : It is pretty much abandoned but did you try the dvd2concat perl script in the tools directory? It is supposed to work for this use case, but mplayer -dumpstream was tested much more and is better suited if you need a file that contains a dvd track. By trial-&-error I discovered that this: 'mplayer H:\VIDEO_TS\VTS_01_1.IFO -dumpstream -dumpfile TITLE1.VOB' works. However, TITLE1.VOB does not play correctly. TITLE1.VOB total time shown (1:06:28) [1] is slightly more than 1/2 the movie's actual total time (2:11:15). Otherwise, playback is normal. Skipping forward and back in the video malfunctions. [1] Curiously, PowerDVD reports TITLE1.VOB total time as 1:50:06. Second-by-second, MPV playback progress bar at the 50% point: Time (left) 01:04:30 [_]__ -00:01:36 Left (right) 01:04:29 [_]__ -00:01:35 01:04:28 [_]__ -00:01:34 00:00:00 [_]__ -01:06:28 00:00:01 [_]__ -01:06:27 00:00:02 [_]__ -01:06:26 At that point, skipping forward by '5' seconds jumps to the credits roll. At that point, skipping back by '5' seconds jumps back to about 2 minutes prior to the 50% point. UPDATE I just ran H:\VIDEO_TS\VTS_01_1.VOB ... H:\VIDEO_TS\VTS_01_6.VOB through MKVToolNix. I saved the result as 'c:\AVOut\VTS_01_1..6.VOB.MKVToolNix.MKV'. It plays flawlessly in MPV. What to conclude: 'mplayer H:\VIDEO_TS\VTS_01_1.IFO -dumpstream -dumpfile TITLE1.VOB' doesn't fix the PTS problems that dog ffmpeg. Merging & remuxing 'H:\VIDEO_TS\VTS_01_1.VOB' ... 'H:\VIDEO_TS\VTS_01_6.VOB' does fix the PTS problems that dog ffmpeg. I know this is not an MPlayer support mailing list, but maybe my experiences with MKVToolNix (works) versus 'MPlayer -dumpstream' (doesn't work) can help the ffmpeg devs to determine why ffmpeg is dogged by PTS problems that appear to be provoked by what I've been doing. Warm Regards, Mark. ___ 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] ffmpeg architecture question #2
Sorry, the p24 "source" *is* soft telecine. On 04/24/2020 11:06 PM, pdr0 wrote: Mark Filipak wrote If you take a soft telecine input, encode it directly to rawvideo or lossless output, you can confirm this. The output is 29.97 (interlaced content) . When I do 'telecine=pattern=5', I wind up with this |<--1/6s-->| [A/a_][A/a_][A/b_][B/b_][B/b_][C/c_][C/c_][C/d_][D/d_][D/d_] 55-telecine I have confirmed it by single-frame stepping through test videos. No. The above timing is for an MKV of the 55-telecine transcode, not for the decoder's output. That's telecine=pattern=5 on a 23.976p native progressive source I thought this thread was about using a soft telecine source , and how ffmpeg handles that because you were making assumptions "So, if the 'i30, TFF' from the decoder is correct, the following must be the full picture: " Obviously i30 does not refer to a 23.976p native progressive source... Pattern looks correct, but unless you are doing something differently , your timescale is not correct When input is vob, mpeg2-ps or mpeg-es using soft telecine in my test, using telecine=pattern=5 the output frame rate is 74.925 as expected (2.5 * 29.97 = 74.925). Not for me. I've seen 74.925 FPS just one time. Since I considered it a failure, I didn't save the video and its log, so I don't know how I got it. This mean RF flags are used, 29.97i output from decoder. Since its 74.925fps, the scale in your diagram for 1/6s is wrong for telecine=pattern=5 For this command line: ffmpeg -report -i "1.018.m2ts" -filter_complex "telecine=pattern=5,split=5[A][B][C][D][E],[A]select='eq(mod(n+1\,5)\,1)'[F],[B]select='eq(mod(n+1\,5)\,2)'[G],[C]select='eq(mod(n+1\,5)\,3)'[H],[D]select='eq(mod(n+1\,5)\,4)'[I],[E]select='eq(mod(n+1\,5)\,0)'[J],[F][G][H][I][J]interleave=nb_inputs=5" -map 0 -c:v libx264 -crf 20 -codec:a copy -codec:s copy "C:\AVOut\1.018.4.MKV" MPV playback of '1.018.4.MKV' says "FPS: 59.940 (estimated)" (not 74.925fps). Is that m2ts a soft telecine BD's ? This thread was about soft telecine... I see your misunderstanding. Here's my original diagram: |<--1/6s-->| [A/a__][B/b__][C/c__][D/d__] source [A/a___][B/b___][B/c___][C/d___][D/d___] hard telecine [A/-_][-/a_][B/-_][-/b_][B/-_][-/c_][C/-_][-/d_][D/-_][-/d_] i30-TFF [A/a___][B/b___][B/c___][C/d___][D/d___] deinterlace [A/a__][B/b__][C/c__][D/d__] detelecine [A/a_][A/a_][A/b_][B/b_][B/b_][C/c_][C/c_][C/d_][D/d_][D/d_] 55-telecine So, you see, the source is p24. "i30-TFF" is what I thought came out of the decoder -- that is based on the latest info (and it is what took me by surprise as I'd always thought that ffmpeg decoders always output frames). Soft telecine is nowhere in that diagram. Sorry for the confusion. CORRECTION: The p24 "source" *is* soft telecine. I'm working on BDs and DVDs in parallel and momentarily got my wires crossed. Of course, it is soft telecined. Otherwise, i30-TFF wouldn't be there at all. The p24 source would go directly to 55-telecine. Most film BD's are native progressive 23.976 Yes, that is the "source" in the diagram. Both ffplay and mpv look like they ignore the repeat field flags, the preview is progressive 23.976p I use MPV. I'm unsure what you mean by "preview". ...and "preview" of what? The decoder output or the MKV output video? The "preview" of the video is what you see when ffplay window opens or mpv opens. It's a RGB converted representation what you are using as input to mpv or ffplay . Oh, I didn't know there was a distinction. I thought it was just the playback. So I'm referring to a soft telecine source, because that's what you were talking about I hope that confusion is resolved. ___ 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] ffmpeg architecture question #2
On 04/24/2020 11:06 PM, pdr0 wrote: Mark Filipak wrote If you take a soft telecine input, encode it directly to rawvideo or lossless output, you can confirm this. The output is 29.97 (interlaced content) . When I do 'telecine=pattern=5', I wind up with this |<--1/6s-->| [A/a_][A/a_][A/b_][B/b_][B/b_][C/c_][C/c_][C/d_][D/d_][D/d_] 55-telecine I have confirmed it by single-frame stepping through test videos. No. The above timing is for an MKV of the 55-telecine transcode, not for the decoder's output. That's telecine=pattern=5 on a 23.976p native progressive source I thought this thread was about using a soft telecine source , and how ffmpeg handles that because you were making assumptions "So, if the 'i30, TFF' from the decoder is correct, the following must be the full picture: " Obviously i30 does not refer to a 23.976p native progressive source... Pattern looks correct, but unless you are doing something differently , your timescale is not correct When input is vob, mpeg2-ps or mpeg-es using soft telecine in my test, using telecine=pattern=5 the output frame rate is 74.925 as expected (2.5 * 29.97 = 74.925). Not for me. I've seen 74.925 FPS just one time. Since I considered it a failure, I didn't save the video and its log, so I don't know how I got it. This mean RF flags are used, 29.97i output from decoder. Since its 74.925fps, the scale in your diagram for 1/6s is wrong for telecine=pattern=5 For this command line: ffmpeg -report -i "1.018.m2ts" -filter_complex "telecine=pattern=5,split=5[A][B][C][D][E],[A]select='eq(mod(n+1\,5)\,1)'[F],[B]select='eq(mod(n+1\,5)\,2)'[G],[C]select='eq(mod(n+1\,5)\,3)'[H],[D]select='eq(mod(n+1\,5)\,4)'[I],[E]select='eq(mod(n+1\,5)\,0)'[J],[F][G][H][I][J]interleave=nb_inputs=5" -map 0 -c:v libx264 -crf 20 -codec:a copy -codec:s copy "C:\AVOut\1.018.4.MKV" MPV playback of '1.018.4.MKV' says "FPS: 59.940 (estimated)" (not 74.925fps). Is that m2ts a soft telecine BD's ? This thread was about soft telecine... I see your misunderstanding. Here's my original diagram: |<--1/6s-->| [A/a__][B/b__][C/c__][D/d__] source [A/a___][B/b___][B/c___][C/d___][D/d___] hard telecine [A/-_][-/a_][B/-_][-/b_][B/-_][-/c_][C/-_][-/d_][D/-_][-/d_] i30-TFF [A/a___][B/b___][B/c___][C/d___][D/d___] deinterlace [A/a__][B/b__][C/c__][D/d__] detelecine [A/a_][A/a_][A/b_][B/b_][B/b_][C/c_][C/c_][C/d_][D/d_][D/d_] 55-telecine So, you see, the source is p24. "i30-TFF" is what I thought came out of the decoder -- that is based on the latest info (and it is what took me by surprise as I'd always thought that ffmpeg decoders always output frames). Soft telecine is nowhere in that diagram. Sorry for the confusion. Most film BD's are native progressive 23.976 Yes, that is the "source" in the diagram. Both ffplay and mpv look like they ignore the repeat field flags, the preview is progressive 23.976p I use MPV. I'm unsure what you mean by "preview". ...and "preview" of what? The decoder output or the MKV output video? The "preview" of the video is what you see when ffplay window opens or mpv opens. It's a RGB converted representation what you are using as input to mpv or ffplay . Oh, I didn't know there was a distinction. I thought it was just the playback. So I'm referring to a soft telecine source, because that's what you were talking about I hope that confusion is resolved. ___ 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] ffmpeg architecture question #2
Mark Filipak wrote > >> >> If you take a soft telecine input, encode it directly to rawvideo or >> lossless output, you can confirm this. >> The output is 29.97 (interlaced content) . >> >>> When I do 'telecine=pattern=5', I wind up with this >>> >>> |<--1/6s-->| >>> [A/a_][A/a_][A/b_][B/b_][B/b_][C/c_][C/c_][C/d_][D/d_][D/d_] 55-telecine >>> >>> I have confirmed it by single-frame stepping through test videos. >> >> No. > > The above timing is for an MKV of the 55-telecine transcode, not for the > decoder's output. That's telecine=pattern=5 on a 23.976p native progressive source I thought this thread was about using a soft telecine source , and how ffmpeg handles that because you were making assumptions "So, if the 'i30, TFF' from the decoder is correct, the following must be the full picture: " Obviously i30 does not refer to a 23.976p native progressive source... >> Pattern looks correct, but unless you are doing something differently , >> your >> timescale is not correct >> >> When input is vob, mpeg2-ps or mpeg-es using soft telecine in my test, >> using >> telecine=pattern=5 the output frame rate is 74.925 as expected (2.5 * >> 29.97 >> = 74.925). > > Not for me. I've seen 74.925 FPS just one time. Since I considered it a > failure, I didn't save the > video and its log, so I don't know how I got it. > >> This mean RF flags are used, 29.97i output from decoder. Since >> its 74.925fps, the scale in your diagram for 1/6s is wrong for >> telecine=pattern=5 > > For this command line: > > ffmpeg -report -i "1.018.m2ts" -filter_complex > "telecine=pattern=5,split=5[A][B][C][D][E],[A]select='eq(mod(n+1\,5)\,1)'[F],[B]select='eq(mod(n+1\,5)\,2)'[G],[C]select='eq(mod(n+1\,5)\,3)'[H],[D]select='eq(mod(n+1\,5)\,4)'[I],[E]select='eq(mod(n+1\,5)\,0)'[J],[F][G][H][I][J]interleave=nb_inputs=5" > > -map 0 -c:v libx264 -crf 20 -codec:a copy -codec:s copy > "C:\AVOut\1.018.4.MKV" > > MPV playback of '1.018.4.MKV' says "FPS: 59.940 (estimated)" (not > 74.925fps). Is that m2ts a soft telecine BD's ? This thread was about soft telecine... Most film BD's are native progressive 23.976 >> Both ffplay and mpv look like they ignore the repeat field flags, the >> preview is progressive 23.976p > > I use MPV. I'm unsure what you mean by "preview". ...and "preview" of > what? The decoder output or > the MKV output video? The "preview" of the video is what you see when ffplay window opens or mpv opens. It's a RGB converted representation what you are using as input to mpv or ffplay . So I'm referring to a soft telecine source, because that's what you were talking about -- Sent from: http://www.ffmpeg-archive.org/ ___ 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] ffmpeg architecture question #2
On 04/24/2020 01:28 PM, pdr0 wrote: Mark Filipak wrote I've been told that, for soft telecined video the decoder is fully compliant and therefore outputs 30fps I've also been told that the 30fps is interlaced (which I found surprising) Is this correct so far? Yes If you take a soft telecine input, encode it directly to rawvideo or lossless output, you can confirm this. The output is 29.97 (interlaced content) . When I do 'telecine=pattern=5', I wind up with this |<--1/6s-->| [A/a_][A/a_][A/b_][B/b_][B/b_][C/c_][C/c_][C/d_][D/d_][D/d_] 55-telecine I have confirmed it by single-frame stepping through test videos. No. The above timing is for an MKV of the 55-telecine transcode, not for the decoder's output. Pattern looks correct, but unless you are doing something differently , your timescale is not correct When input is vob, mpeg2-ps or mpeg-es using soft telecine in my test, using telecine=pattern=5 the output frame rate is 74.925 as expected (2.5 * 29.97 = 74.925). Not for me. I've seen 74.925 FPS just one time. Since I considered it a failure, I didn't save the video and its log, so I don't know how I got it. This mean RF flags are used, 29.97i output from decoder. Since its 74.925fps, the scale in your diagram for 1/6s is wrong for telecine=pattern=5 For this command line: ffmpeg -report -i "1.018.m2ts" -filter_complex "telecine=pattern=5,split=5[A][B][C][D][E],[A]select='eq(mod(n+1\,5)\,1)'[F],[B]select='eq(mod(n+1\,5)\,2)'[G],[C]select='eq(mod(n+1\,5)\,3)'[H],[D]select='eq(mod(n+1\,5)\,4)'[I],[E]select='eq(mod(n+1\,5)\,0)'[J],[F][G][H][I][J]interleave=nb_inputs=5" -map 0 -c:v libx264 -crf 20 -codec:a copy -codec:s copy "C:\AVOut\1.018.4.MKV" MPV playback of '1.018.4.MKV' says "FPS: 59.940 (estimated)" (not 74.925fps). Both ffplay and mpv look like they ignore the repeat field flags, the preview is progressive 23.976p I use MPV. I'm unsure what you mean by "preview". ...and "preview" of what? The decoder output or the MKV output video? ___ 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] ffmpeg architecture question #2
On 04/24/2020 01:22 PM, Carl Eugen Hoyos wrote: Am 24.04.2020 um 11:10 schrieb Mark Filipak : I've been told that, for soft telecined video the decoder is fully compliant and therefore outputs 30fps (“fps” is highly ambiguous in this sentence.) This is not correct. I believe I told you some time ago that this is not how the decoder behaves. I beg your pardon, Carl Eugen. I thought you said that the decoders are fully compliant and therefore produce interlaced fields. I believe such a behaviour would not make sense for FFmpeg (because you cannot connect FFmpeg’s output to an NTSC CRT). The telecine filter would not work at all if above were the case. Or in other words: FFmpeg outputs approximately 24 frames per second for typical soft-telecined program streams. The only thing FFmpeg does to be “compliant” is to forward the correct time base. By "correct time base" you mean 24/1.001, correct? ___ 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] ffmpeg architecture question #2
On 04/24/2020 11:30 AM, Edward Park wrote: Hi, I don't know if the decoder outputs 30fps as is from 24fps soft telecine, but if it does, it must include the flags that you need to reconstruct the original 24 format or set it as metadata because frame stepping in ffplay (using the "s" key on the keyboard) goes over 1/24 s progressive frames, even though the stream info says 29.97fps. I've seen the same operation frame-stepping via MPV. That fact, and assertions by the HandBrake folks that (at least from their perspective), the ffmpeg libraries (decoders?) work solely on frames -- at least, that's my interpretation of what they said. ___ 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] Can't write packet with unknown timestamp
Sorry. Slight edit error. Below is corrected. On 04/24/2020 04:04 PM, Carl Eugen Hoyos wrote: Am Fr., 24. Apr. 2020 um 17:14 Uhr schrieb Edward Park : It is pretty much abandoned but did you try the dvd2concat perl script in the tools directory? It is supposed to work for this use case, but mplayer -dumpstream was tested much more and is better suited if you need a file that contains a dvd track. By trial-&-error I discovered that this: 'mplayer H:\VIDEO_TS\VTS_01_1.IFO -dumpstream -dumpfile TITLE1.VOB' works. However, TITLE1.VOB does not play correctly. TITLE1.VOB total time shown (1:06:28) [1] is slightly more than 1/2 the movie's actual total time (2:11:15). Otherwise, playback is normal. Skipping forward and back in the video malfunctions. [1] Curiously, PowerDVD reports TITLE1.VOB total time as 1:50:06. Second-by-second, MPV playback progress bar at the 50% point: Time (left) 01:04:30 [_]__ -00:01:36 Left (right) 01:04:29 [_]__ -00:01:35 01:04:28 [_]__ -00:01:34 00:00:00 [_]__ -01:06:28 00:00:01 [_]__ -01:06:27 00:00:02 [_]__ -01:06:26 At that point, skipping forward by '5' seconds jumps to the credits roll. At that point, skipping back by '5' seconds jumps back to about 2 minutes prior to the 50% point. ___ 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] Can't write packet with unknown timestamp
On 04/24/2020 04:04 PM, Carl Eugen Hoyos wrote: Am Fr., 24. Apr. 2020 um 17:14 Uhr schrieb Edward Park : It is pretty much abandoned but did you try the dvd2concat perl script in the tools directory? It is supposed to work for this use case, but mplayer -dumpstream was tested much more and is better suited if you need a file that contains a dvd track. By trial-&-error I discovered that this: 'mplayer H:\VIDEO_TS\VTS_01_1.IFO -dumpstream -dumpfile TITLE1.VOB' works. However, TITLE1.VOB does not play correctly. TITLE1.VOB total time shown (1:06:28) [1] is slightly more than 1/2 the movie's actual total time (2:11:15). Otherwise, playback is normal. Skipping forward and back in the video only slightly malfunctions [2]. [1] Curiously, PowerDVD reports TITLE1.VOB total time as 1:50:06. [2] Very near the end of the movie, the progress bar shows Second-by-second, MPV playback progress bar at 50% point: Time (left) 01:04:30 [_]__ -00:01:36 Left (right) 01:04:29 [_]__ -00:01:35 01:04:28 [_]__ -00:01:34 00:00:00 [_]__ -01:06:28 00:00:01 [_]__ -01:06:27 00:00:02 [_]__ -01:06:26 At that point, skipping forward by '5' seconds jumps to the credits roll. At that point, skipping back by '5' seconds jumps back to about 2 minutes prior to the 50% point. ___ 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] ffmpeg architecture question #2
Carl Eugen Hoyos-2 wrote >> e.g >> ffmpeg -i input.mpeg -c:v rawvideo -an output.yuv > > (Consider to test with other output formats.) What did you have in mind? e.g. ffmpeg -i input.mpeg -c:v utvideo -an output.avi The output is 29.97, according to ffmpeg and double check using official utvideo VFW decoder, duplicate frames . Missing 3 frames if duplicates abide by RF flags e.g. ffmpeg -i input.mpeg -c:v utvideo -an output.mkv Output is 29.97, but no duplicate frames. Missing 1 frame eg. ffmpeg -i input.mpeg -c:v libx264 -crf 18 -an output.mp4 Output is 29.97 with duplicates . Elementary stream analysis confirms finding. But missing 3 frames if duplicates abide by RF flags ffmpeg -i input.mpeg -c:v libx264 -crf 18 -an output.mkv Output is 23.976 no duplicates . Missing 1 frame eg. ffmpeg -i input.mpeg -c:v ffv1 -an output_ffv1.mkv Output is 29.97, no duplicates. Missing 1 frame Looks like some container differences too. -- Sent from: http://www.ffmpeg-archive.org/ ___ 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] change inputs or mapping while recording
Hi, > That works only under Linux, right? It seems libzmq is not enabled in the > FFmpeg build for Windows from Zeranoe. FFmpeg would need to have been built with 0mq support but I'm almost sure there are windows versions of the library, client and server. Any way to send commands to a filter would work, you can sort of do it in the shell that's running FFmpeg (typing "c" brings up a command line) but it pauses everything. Regards, Ted Park ___ 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] change inputs or mapping while recording
Am 24.04.2020 um 21:56 schrieb Edward Park: Hi, How can this be done with FFmpeg? Do you have an example? I know how commands / sendcmd works. The opacity could be toggled, or the streamselect filter could be used. But where does the switching signal come from, while FFmpeg is running? The specific messaging protocol/method would depend on a variety of factors including personal preference, but to parrot an example given in the manual using zmq, % ffmpeg -i INPUT -filter_complex 'null[main];movie=INPUT2,zmq,lumakey@toggle=tolerance=1,[main]overlay,realtime' OUTPUT and sending commands to the named lumakey filter would mimic toggling between the two streams if they were the same size and position. i.e. using the zmqsend example program, % zmqsend <<<"lumakey@toggle tolerance 0" That works only under Linux, right? It seems libzmq is not enabled in the FFmpeg build for Windows from Zeranoe. Michael ___ 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] Can't write packet with unknown timestamp
Am Fr., 24. Apr. 2020 um 17:14 Uhr schrieb Edward Park : > It is pretty much abandoned but did you try the dvd2concat perl script in the > tools directory? It is supposed to work for this use case, but mplayer -dumpstream was tested much more and is better suited if you need a file that contains a dvd track. 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".
Re: [FFmpeg-user] change inputs or mapping while recording
Hi, > How can this be done with FFmpeg? Do you have an example? I know how commands > / sendcmd works. The opacity could be toggled, or the streamselect filter > could be used. But where does the switching signal come from, while FFmpeg is > running? The specific messaging protocol/method would depend on a variety of factors including personal preference, but to parrot an example given in the manual using zmq, % ffmpeg -i INPUT -filter_complex 'null[main];movie=INPUT2,zmq,lumakey@toggle=tolerance=1,[main]overlay,realtime' OUTPUT and sending commands to the named lumakey filter would mimic toggling between the two streams if they were the same size and position. i.e. using the zmqsend example program, % zmqsend <<<"lumakey@toggle tolerance 0" Regards, Ted Park ___ 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] ffmpeg architecture question #2
> Am 24.04.2020 um 19:34 schrieb pdr0 : > > Carl Eugen Hoyos-2 wrote >>> Am 24.04.2020 um 11:10 schrieb Mark Filipak > >> markfilipak.windows+ffmpeg@ > >> : >>> >>> I've been told that, for soft telecined video the decoder is fully >>> compliant and therefore outputs 30fps >> >> (“fps” is highly ambiguous in this sentence.) >> >> This is not correct. >> I believe I told you some time ago that this is not how the decoder >> behaves. I believe such a behaviour would not make sense for FFmpeg >> (because you cannot connect FFmpeg’s output to an NTSC CRT). The telecine >> filter would not work at all if above were the case. >> Or in other words: FFmpeg outputs approximately 24 frames per second for >> typical soft-telecined program streams. >> >> The only thing FFmpeg does to be “compliant” is to forward the correct >> time base. > > > If you use direct encode, no filters, no switches, the output from soft > telecine input video is 29.97p, where every 5th frame is a duplicate No > e.g > ffmpeg -i input.mpeg -c:v rawvideo -an output.yuv (Consider to test with other output formats.) > But you can "force" it to output 23.976p by using -vf fps > > Is this what you mean by "forward the correct time base" ? No. 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".
Re: [FFmpeg-user] change inputs or mapping while recording
Am 24.04.2020 um 20:08 schrieb Edward Park: I would now like to add stream2 as second video input and switch between stream1 and stream2 back and forth without interrupting the audio. Both streams are identical / come from identical cameras. Is there any sane way to do this with ffmpeg? Or how would you recommend doing it? If I had to do this, I would basically composite the two streams and toggle opacity of the top layer between 0 and 1. It would break if either stream had reading problems, and you would constantly be processing both streams which might not be desirable if you were switching from A to B and never go back to A, for example. How can this be done with FFmpeg? Do you have an example? I know how commands / sendcmd works. The opacity could be toggled, or the streamselect filter could be used. But where does the switching signal come from, while FFmpeg is running? Michael ___ 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] ffmpeg architecture question #2
Hi, > Output is actually 29.97p with 5th frame duplicates . The repeat field flags > are not taken into account. > If you use direct encode, no filters, no switches, the output from soft > telecine input video is 29.97p, where every 5th frame is a duplicate > > e.g > ffmpeg -i input.mpeg -c:v rawvideo -an output.yuv > > But you can "force" it to output 23.976p by using -vf fps > > Is this what you mean by "forward the correct time base" ? I think 5th frame duplicated is only accurate for shorter durations, I think you will see if you look at the timestamps of each frame over a longer period. They advance by 2 60fps 'ticks', 3 ticks, etc as if the duration was determined using rf and tff flags. Regards, Ted Park ___ 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] change inputs or mapping while recording
Hi, > I would now like to add stream2 as second video input and switch > between stream1 and stream2 back and forth without interrupting the > audio. Both streams are identical / come from identical cameras. > > Is there any sane way to do this with ffmpeg? Or how would you > recommend doing it? If I had to do this, I would basically composite the two streams and toggle opacity of the top layer between 0 and 1. It would break if either stream had reading problems, and you would constantly be processing both streams which might not be desirable if you were switching from A to B and never go back to A, for example. Regards, Ted Park ___ 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] ffmpeg architecture question #2
pdr0 wrote > If you take a soft telecine input, encode it directly to rawvideo or > lossless output, you can confirm this. > The output is 29.97 (interlaced content) . So my earlier post is incorrect Output is actually 29.97p with 5th frame duplicates . The repeat field flags are not taken into account. -- Sent from: http://www.ffmpeg-archive.org/ ___ 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] ffmpeg architecture question #2
Carl Eugen Hoyos-2 wrote >> Am 24.04.2020 um 11:10 schrieb Mark Filipak > markfilipak.windows+ffmpeg@ > : >> >> I've been told that, for soft telecined video the decoder is fully >> compliant and therefore outputs 30fps > > (“fps” is highly ambiguous in this sentence.) > > This is not correct. > I believe I told you some time ago that this is not how the decoder > behaves. I believe such a behaviour would not make sense for FFmpeg > (because you cannot connect FFmpeg’s output to an NTSC CRT). The telecine > filter would not work at all if above were the case. > Or in other words: FFmpeg outputs approximately 24 frames per second for > typical soft-telecined program streams. > > The only thing FFmpeg does to be “compliant” is to forward the correct > time base. If you use direct encode, no filters, no switches, the output from soft telecine input video is 29.97p, where every 5th frame is a duplicate e.g ffmpeg -i input.mpeg -c:v rawvideo -an output.yuv But you can "force" it to output 23.976p by using -vf fps Is this what you mean by "forward the correct time base" ? -- Sent from: http://www.ffmpeg-archive.org/ ___ 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] change inputs or mapping while recording
On 4/24/2020 1:50 AM, Stephan Monecke wrote: Is there any sane way to do this with ffmpeg? Or how would you recommend doing it? You need something like OBS Studio (free, works well) to do this. z! ___ 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] ffmpeg architecture question #2
Mark Filipak wrote >> I've been told that, for soft telecined video >> the decoder is fully compliant and therefore outputs 30fps >> I've also been told that the 30fps is interlaced (which I found >> surprising) >> Is this correct so far? Yes If you take a soft telecine input, encode it directly to rawvideo or lossless output, you can confirm this. The output is 29.97 (interlaced content) . > When I do 'telecine=pattern=5', I wind up with this > > |<--1/6s-->| > [A/a_][A/a_][A/b_][B/b_][B/b_][C/c_][C/c_][C/d_][D/d_][D/d_] 55-telecine > > I have confirmed it by single-frame stepping through test videos. No. Pattern looks correct, but unless you are doing something differently , your timescale is not correct When input is vob, mpeg2-ps or mpeg-es using soft telecine in my test, using telecine=pattern=5 the output frame rate is 74.925 as expected (2.5 * 29.97 = 74.925). This mean RF flags are used, 29.97i output from decoder. Since its 74.925fps, the scale in your diagram for 1/6s is wrong for telecine=pattern=5 Both ffplay and mpv look like they ignore the repeat field flags, the preview is progressive 23.976p -- Sent from: http://www.ffmpeg-archive.org/ ___ 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] ffmpeg architecture question #2
> Am 24.04.2020 um 11:10 schrieb Mark Filipak > : > > I've been told that, for soft telecined video the decoder is fully compliant > and therefore outputs 30fps (“fps” is highly ambiguous in this sentence.) This is not correct. I believe I told you some time ago that this is not how the decoder behaves. I believe such a behaviour would not make sense for FFmpeg (because you cannot connect FFmpeg’s output to an NTSC CRT). The telecine filter would not work at all if above were the case. Or in other words: FFmpeg outputs approximately 24 frames per second for typical soft-telecined program streams. The only thing FFmpeg does to be “compliant” is to forward the correct time base. 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".
Re: [FFmpeg-user] Stereo 3D encoding with nvenc
On Fri, 24 Apr 2020, 18:39 Dennis Mungai, wrote: > > On Fri, 24 Apr 2020, 14:47 Etienne Sandré-Chardonnal, < > etienne.san...@m4x.org> wrote: > >> Hi, >> >> Are there options for encoding 3D video with nvenc, like with x264 and >> --frame-packing? I know the NVEnc API has the option, but was it enabled >> in >> ffmpeg? I can't find any documented option. >> >> Thanks! >> > > On the hardware side, VAAPI (and possibly QuickSync) have such an option > exposed via FFmpeg. There was patchwork (not sure if it's merged or not, > it's been a while) authored by Mark? Thompson (sic, not sure, need to > confirm) enabling such functionality. Let me check on that and get back to > you. > I found the patch series, not sure if it was applied for VAAPI back in the day. It was authored by Mark Thompson at the request of a user who was dealing with stereoscopic H/W decode issues https://lists.ffmpeg.org/pipermail/ffmpeg-devel/2019-October/250966.html > ___ 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] Stereo 3D encoding with nvenc
On Fri, 24 Apr 2020, 14:47 Etienne Sandré-Chardonnal, < etienne.san...@m4x.org> wrote: > Hi, > > Are there options for encoding 3D video with nvenc, like with x264 and > --frame-packing? I know the NVEnc API has the option, but was it enabled in > ffmpeg? I can't find any documented option. > > Thanks! > On the hardware side, VAAPI (and possibly QuickSync) have such an option exposed via FFmpeg. There was patchwork (not sure if it's merged or not, it's been a while) authored by Mark? Thompson (sic, not sure, need to confirm) enabling such functionality. Let me check on that and get back to you. > ___ 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] Can't write packet with unknown timestamp
They answered your question, It is time to let it go. ___ 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] ffmpeg architecture question #2
Hi, I don't know if the decoder outputs 30fps as is from 24fps soft telecine, but if it does, it must include the flags that you need to reconstruct the original 24 format or set it as metadata because frame stepping in ffplay (using the "s" key on the keyboard) goes over 1/24 s progressive frames, even though the stream info says 29.97fps. Regards, Ted Park ___ 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] Can't write packet with unknown timestamp
Hi, It is pretty much abandoned but did you try the dvd2concat perl script in the tools directory? That will output a file to use with the concat demuxer (not the protocol, I think that is only good for files you can literally use cat to concatenate), and it is pretty big, it should show that vobs from DVDs aren't that flat. Example output: ffconcat version 1.0 stream exact_stream_id 0x1E0 stream exact_stream_id 0x80 stream exact_stream_id 0x81 stream exact_stream_id 0x82 stream exact_stream_id 0x83 stream exact_stream_id 0x20 stream exact_stream_id 0x21 stream exact_stream_id 0x22 stream exact_stream_id 0x23 stream exact_stream_id 0x24 stream exact_stream_id 0x25 stream exact_stream_id 0x26 stream exact_stream_id 0x27 stream exact_stream_id 0x28 stream exact_stream_id 0x29 file 'subfile,,start,382976,end,397312,,:/Volumes/CAPOTE/VIDEO_TS/VTS_01_1.VOB' duration 00:00:00.000 file 'subfile,,start,397312,end,411648,,:/Volumes/CAPOTE/VIDEO_TS/VTS_01_1.VOB' duration 00:00:00.000 file 'subfile,,start,411648,end,425984,,:/Volumes/CAPOTE/VIDEO_TS/VTS_01_1.VOB' duration 00:00:00.000 file 'subfile,,start,425984,end,440320,,:/Volumes/CAPOTE/VIDEO_TS/VTS_01_1.VOB' duration 00:00:00.000 file 'subfile,,start,440320,end,454656,,:/Volumes/CAPOTE/VIDEO_TS/VTS_01_1.VOB' duration 00:00:00.000 file 'subfile,,start,454656,end,468992,,:/Volumes/CAPOTE/VIDEO_TS/VTS_01_1.VOB' duration 00:00:00.000 file 'subfile,,start,468992,end,483328,,:/Volumes/CAPOTE/VIDEO_TS/VTS_01_1.VOB' duration 00:00:00.000 file 'subfile,,start,483328,end,497664,,:/Volumes/CAPOTE/VIDEO_TS/VTS_01_1.VOB' duration 00:00:00.000 file 'subfile,,start,497664,end,512000,,:/Volumes/CAPOTE/VIDEO_TS/VTS_01_1.VOB' duration 00:00:00.000 file 'subfile,,start,512000,end,526336,,:/Volumes/CAPOTE/VIDEO_TS/VTS_01_1.VOB' duration 00:00:00.000 file 'subfile,,start,526336,end,2215936,,:/Volumes/CAPOTE/VIDEO_TS/VTS_01_1.VOB' duration 00:00:00.000 file 'subfile,,start,2215936,end,4225024,,:/Volumes/CAPOTE/VIDEO_TS/VTS_01_1.VOB' duration 00:00:00.033 file 'subfile,,start,4225024,end,11036672,,:/Volumes/CAPOTE/VIDEO_TS/VTS_01_1.VOB' duration 00:00:00.033 file 'subfile,,start,11036672,end,16971776,,:/Volumes/CAPOTE/VIDEO_TS/VTS_01_1.VOB' duration 00:00:00.100 file 'subfile,,start,16971776,end,20178944,,:/Volumes/CAPOTE/VIDEO_TS/VTS_01_1.VOB' duration 00:00:00.233 file 'subfile,,start,20178944,end,24090624,,:/Volumes/CAPOTE/VIDEO_TS/VTS_01_1.VOB' duration 00:00:00.233 file 'subfile,,start,24090624,end,31891456,,:/Volumes/CAPOTE/VIDEO_TS/VTS_01_1.VOB' duration 00:00:00.266 file 'subfile,,start,31891456,end,34271232,,:/Volumes/CAPOTE/VIDEO_TS/VTS_01_1.VOB' duration 00:00:00.200 file 'subfile,,start,34271232,end,34314240,,:/Volumes/CAPOTE/VIDEO_TS/VTS_01_1.VOB' duration 00:00:00.066 file 'subfile,,start,34314240,end,34328576,,:/Volumes/CAPOTE/VIDEO_TS/VTS_01_1.VOB' duration 00:00:00.133 file 'subfile,,start,34328576,end,34392064,,:/Volumes/CAPOTE/VIDEO_TS/VTS_01_1.VOB' duration 00:00:00.467 file 'subfile,,start,34392064,end,187197440,,:/Volumes/CAPOTE/VIDEO_TS/VTS_01_1.VOB' duration 00:03:27.400 file 'subfile,,start,187197440,end,431077376,,:/Volumes/CAPOTE/VIDEO_TS/VTS_01_1.VOB' duration 00:04:42.333 file 'subfile,,start,431077376,end,589074432,,:/Volumes/CAPOTE/VIDEO_TS/VTS_01_1.VOB' duration 00:03:22.200 file 'subfile,,start,589074432,end,777889792,,:/Volumes/CAPOTE/VIDEO_TS/VTS_01_1.VOB' duration 00:03:57.433 file 'subfile,,start,777889792,end,940957696,,:/Volumes/CAPOTE/VIDEO_TS/VTS_01_1.VOB' duration 00:03:29.133 file 'subfile,,start,940957696,end,1121656832,,:concat:/Volumes/CAPOTE/VIDEO_TS/VTS_01_1.VOB|/Volumes/CAPOTE/VIDEO_TS/VTS_01_2.VOB' duration 00:03:50.967 file 'subfile,,start,47917056,end,251195392,,:/Volumes/CAPOTE/VIDEO_TS/VTS_01_2.VOB' duration 00:04:23.500 file 'subfile,,start,251195392,end,469211136,,:/Volumes/CAPOTE/VIDEO_TS/VTS_01_2.VOB' duration 00:04:28.633 file 'subfile,,start,469211136,end,694167552,,:/Volumes/CAPOTE/VIDEO_TS/VTS_01_2.VOB' duration 00:05:09.834 file 'subfile,,start,694167552,end,798273536,,:/Volumes/CAPOTE/VIDEO_TS/VTS_01_2.VOB' duration 00:02:17.667 file 'subfile,,start,798273536,end,1016700928,,:/Volumes/CAPOTE/VIDEO_TS/VTS_01_2.VOB' duration 00:04:21.700 file 'subfile,,start,1016700928,end,1287690240,,:concat:/Volumes/CAPOTE/VIDEO_TS/VTS_01_2.VOB|/Volumes/CAPOTE/VIDEO_TS/VTS_01_3.VOB' duration 00:05:53.633 file 'subfile,,start,213950464,end,433152000,,:/Volumes/CAPOTE/VIDEO_TS/VTS_01_3.VOB' duration 00:04:08.300 file 'subfile,,start,433152000,end,621991936,,:/Volumes/CAPOTE/VIDEO_TS/VTS_01_3.VOB' duration 00:04:07.166 file 'subfile,,start,621991936,end,851488768,,:/Volumes/CAPOTE/VIDEO_TS/VTS_01_3.VOB' duration 00:04:36.400 file 'subfile,,start,851488768,end,1098213376,,:concat:/Volumes/CAPOTE/VIDEO_TS/VTS_01_3.VOB|/Volumes/CAPOTE/VIDEO_TS/VTS_01_4.VOB' duration 00:05:25.200 file
Re: [FFmpeg-user] Can't write packet with unknown timestamp
PS: Just to make it clear, I don't think the PTS errors when I try to transcode BD movies is a real problem with 'telecine=pattern=5' or 'interlace' or any of the modulo splits. I think it's a memory management problem in ffmpeg that is being exposed by what I'm doing. I know I'm mixing threads here, and I'm sorry about that. The 55-telecine works so well with short videos and it fails with full length movies, all full length movies, and in the same places, and in the same ways. On 04/24/2020 09:56 AM, Paul B Mahol wrote: On 4/24/20, Mark Filipak wrote: On 04/24/2020 09:46 AM, Paul B Mahol wrote: On 4/24/20, Mark Filipak wrote: On 04/24/2020 05:01 AM, Carl Eugen Hoyos wrote: Am Fr., 24. Apr. 2020 um 09:17 Uhr schrieb Mark Filipak : What's going wrong with my remux? I believe that you have already been told that you cannot generally concatenate vob files as you did, use mplayer -dumpstream. I downloaded mplayer and tried 'mplayer -dumpstream h:\video_ts\vts_01_1.vob'. It created 'stream.dump'. 'stream.dump' is just an exact copy of 'vts_01_1.vob'. I don't know the point of that. I couldn't figure out how to use 'mplayer -dumpstream' to concatenate vts_01_1.vob ... vts_01_6.vob. I tried every combination I could think of. It's not documented. You have not tried playing with dvd protocol of mplayer by any chance? I tried. The dvd protocol wants a number (1, 2, 3, ...), not a drive letter (H: in this case), so I couldn't get it to work. Ugh, that makes no sense, consult mplayer documentation and use google. I did consult mplayer documentation, Paul. And Google's useless for stuff like this: A half million hits showing "How to play videos". When the person doing the search (me) is so unsure, forming a meaningful search string is difficult. You folks are the pros. I hope you can provide the guidance. Look, this is really a side trip. I just wanted to see whether 55-telecine would work with a DVD video that's as long running as the BD videos -- the ones that ffmpeg can't 55-telecine without PTS errors. PTS errors is what really needs to be fixed. For now, this is just a distraction. Carl Eugen reminded me of 'mplayer -dumpstream'. As you know, I've been rather busy lately. Well, I can't get 'mplayer -dumpstream' to work with a string of VOBs. ...But it's just a distraction. ___ 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] ffmpeg architecture question #2
On 04/24/2020 05:10 AM, Mark Filipak wrote: Hello, I've been told that, for soft telecined video |<--1/6s-->| [A/a__][B/b__][C/c__][D/d__] source the decoder is fully compliant and therefore outputs 30fps |<--1/6s-->| [A/a__][B/b__][C/c__][D/d__] source [A/a___][B/b___][B/c___][C/d___][D/d___] hard telecine I've also been told that the 30fps is interlaced (which I found surprising) |<--1/6s-->| [A/a__][B/b__][C/c__][D/d__] source [A/a___][B/b___][B/c___][C/d___][D/d___] hard telecine [A/-_][-/a_][B/-_][-/b_][B/-_][-/c_][C/-_][-/d_][D/-_][-/d_] i30-TFF Is this correct so far? (No response, so continuing.) When I do 'telecine=pattern=5', I wind up with this |<--1/6s-->| [A/a_][A/a_][A/b_][B/b_][B/b_][C/c_][C/c_][C/d_][D/d_][D/d_] 55-telecine I have confirmed it by single-frame stepping through test videos. So, if the 'i30, TFF' from the decoder is correct, the following must be the full picture: |<--1/6s-->| [A/a__][B/b__][C/c__][D/d__] source [A/a___][B/b___][B/c___][C/d___][D/d___] hard telecine [A/-_][-/a_][B/-_][-/b_][B/-_][-/c_][C/-_][-/d_][D/-_][-/d_] i30, TFF [A/a___][B/b___][B/c___][C/d___][D/d___] deinterlace [A/a__][B/b__][C/c__][D/d__] detelecine [A/a_][A/a_][A/b_][B/b_][B/b_][C/c_][C/c_][C/d_][D/d_][D/d_] 55-telecine Now, I'm not telling ffmpeg to do the deinterlace or the detelecine. If it indeed is doing deinterlace & detelecine -- I don't know how to get from i30-TFF to 55-telecine any other way -- it must be doing it on its own. Is this correct? ___ 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] Can't write packet with unknown timestamp
On 04/24/2020 09:56 AM, Paul B Mahol wrote: On 4/24/20, Mark Filipak wrote: On 04/24/2020 09:46 AM, Paul B Mahol wrote: On 4/24/20, Mark Filipak wrote: On 04/24/2020 05:01 AM, Carl Eugen Hoyos wrote: Am Fr., 24. Apr. 2020 um 09:17 Uhr schrieb Mark Filipak : What's going wrong with my remux? I believe that you have already been told that you cannot generally concatenate vob files as you did, use mplayer -dumpstream. I downloaded mplayer and tried 'mplayer -dumpstream h:\video_ts\vts_01_1.vob'. It created 'stream.dump'. 'stream.dump' is just an exact copy of 'vts_01_1.vob'. I don't know the point of that. I couldn't figure out how to use 'mplayer -dumpstream' to concatenate vts_01_1.vob ... vts_01_6.vob. I tried every combination I could think of. It's not documented. You have not tried playing with dvd protocol of mplayer by any chance? I tried. The dvd protocol wants a number (1, 2, 3, ...), not a drive letter (H: in this case), so I couldn't get it to work. Ugh, that makes no sense, consult mplayer documentation and use google. I did consult mplayer documentation, Paul. And Google's useless for stuff like this: A half million hits showing "How to play videos". When the person doing the search (me) is so unsure, forming a meaningful search string is difficult. You folks are the pros. I hope you can provide the guidance. Look, this is really a side trip. I just wanted to see whether 55-telecine would work with a DVD video that's as long running as the BD videos -- the ones that ffmpeg can't 55-telecine without PTS errors. PTS errors is what really needs to be fixed. For now, this is just a distraction. Carl Eugen reminded me of 'mplayer -dumpstream'. As you know, I've been rather busy lately. Well, I can't get 'mplayer -dumpstream' to work with a string of VOBs. ...But it's just a distraction. ___ 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] Can't write packet with unknown timestamp
On 4/24/20, Mark Filipak wrote: > On 04/24/2020 09:46 AM, Paul B Mahol wrote: >> On 4/24/20, Mark Filipak wrote: >>> On 04/24/2020 05:01 AM, Carl Eugen Hoyos wrote: Am Fr., 24. Apr. 2020 um 09:17 Uhr schrieb Mark Filipak : > > What's going wrong with my remux? I believe that you have already been told that you cannot generally concatenate vob files as you did, use mplayer -dumpstream. >>> >>> I downloaded mplayer and tried 'mplayer -dumpstream >>> h:\video_ts\vts_01_1.vob'. It created >>> 'stream.dump'. 'stream.dump' is just an exact copy of 'vts_01_1.vob'. I >>> don't know the point of that. >>> >>> I couldn't figure out how to use 'mplayer -dumpstream' to concatenate >>> vts_01_1.vob ... vts_01_6.vob. >>> I tried every combination I could think of. It's not documented. >>> >> >> You have not tried playing with dvd protocol of mplayer by any chance? > > I tried. The dvd protocol wants a number (1, 2, 3, ...), not a drive letter > (H: in this case), so I > couldn't get it to work. Ugh, that makes no sense, consult mplayer documentation and use google. > > > ___ > 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 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] Can't write packet with unknown timestamp
On 04/24/2020 09:46 AM, Paul B Mahol wrote: On 4/24/20, Mark Filipak wrote: On 04/24/2020 05:01 AM, Carl Eugen Hoyos wrote: Am Fr., 24. Apr. 2020 um 09:17 Uhr schrieb Mark Filipak : What's going wrong with my remux? I believe that you have already been told that you cannot generally concatenate vob files as you did, use mplayer -dumpstream. I downloaded mplayer and tried 'mplayer -dumpstream h:\video_ts\vts_01_1.vob'. It created 'stream.dump'. 'stream.dump' is just an exact copy of 'vts_01_1.vob'. I don't know the point of that. I couldn't figure out how to use 'mplayer -dumpstream' to concatenate vts_01_1.vob ... vts_01_6.vob. I tried every combination I could think of. It's not documented. You have not tried playing with dvd protocol of mplayer by any chance? I tried. The dvd protocol wants a number (1, 2, 3, ...), not a drive letter (H: in this case), so I couldn't get it to work. ___ 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] Can't write packet with unknown timestamp
On 4/24/20, Mark Filipak wrote: > On 04/24/2020 05:01 AM, Carl Eugen Hoyos wrote: >> Am Fr., 24. Apr. 2020 um 09:17 Uhr schrieb Mark Filipak >> : >>> >>> What's going wrong with my remux? >> >> I believe that you have already been told that you cannot generally >> concatenate vob files as you did, use mplayer -dumpstream. > > I downloaded mplayer and tried 'mplayer -dumpstream > h:\video_ts\vts_01_1.vob'. It created > 'stream.dump'. 'stream.dump' is just an exact copy of 'vts_01_1.vob'. I > don't know the point of that. > > I couldn't figure out how to use 'mplayer -dumpstream' to concatenate > vts_01_1.vob ... vts_01_6.vob. > I tried every combination I could think of. It's not documented. > You have not tried playing with dvd protocol of mplayer by any chance? > I did make an MP4 via VLC. The judder is awful. > ___ > 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 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] Can't write packet with unknown timestamp
On 04/24/2020 05:01 AM, Carl Eugen Hoyos wrote: Am Fr., 24. Apr. 2020 um 09:17 Uhr schrieb Mark Filipak : What's going wrong with my remux? I believe that you have already been told that you cannot generally concatenate vob files as you did, use mplayer -dumpstream. I downloaded mplayer and tried 'mplayer -dumpstream h:\video_ts\vts_01_1.vob'. It created 'stream.dump'. 'stream.dump' is just an exact copy of 'vts_01_1.vob'. I don't know the point of that. I couldn't figure out how to use 'mplayer -dumpstream' to concatenate vts_01_1.vob ... vts_01_6.vob. I tried every combination I could think of. It's not documented. I did make an MP4 via VLC. The judder is awful. ___ 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] Stereo 3D encoding with nvenc
Hi, Are there options for encoding 3D video with nvenc, like with x264 and --frame-packing? I know the NVEnc API has the option, but was it enabled in ffmpeg? I can't find any documented option. Thanks! ___ 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] Can't write packet with unknown timestamp
Mark, Okay. What can be concatenated? That purpose does the 'concat:' filter serve? What an big ignorance? You are using concat protocol. Finally learn something Like I wrote: What can be concatenated? What purpose does the 'concat:' protocol serve? There are three different things: concat demuxer, concat protocol and concat filter. It's described here: https://trac.ffmpeg.org/wiki/Concatenate Michael ___ 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] Can't write packet with unknown timestamp
On 04/24/2020 05:42 AM, Paul B Mahol wrote: On 4/24/20, Mark Filipak wrote: On 04/24/2020 05:01 AM, Carl Eugen Hoyos wrote: Am Fr., 24. Apr. 2020 um 09:17 Uhr schrieb Mark Filipak : What's going wrong with my remux? I believe that you have already been told that you cannot generally concatenate vob files as you did, use mplayer -dumpstream. Carl Eugen Okay. What can be concatenated? That purpose does the 'concat:' filter serve? What an big ignorance? You are using concat protocol. Finally learn something Like I wrote: What can be concatenated? What purpose does the 'concat:' protocol serve? ___ 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] Can't write packet with unknown timestamp
On 4/24/20, Mark Filipak wrote: > On 04/24/2020 05:01 AM, Carl Eugen Hoyos wrote: >> Am Fr., 24. Apr. 2020 um 09:17 Uhr schrieb Mark Filipak >> : >>> >>> What's going wrong with my remux? >> >> I believe that you have already been told that you cannot generally >> concatenate vob files as you did, use mplayer -dumpstream. >> >> Carl Eugen > > Okay. What can be concatenated? That purpose does the 'concat:' filter > serve? > What an big ignorance? You are using concat protocol. Finally learn something ___ 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] Change FPS on a clip without transcodng
Ok, so what you are saying it is not possible to change fps without a transcode? I don't have a Commandline and for that reason no output as I have not found any way to do it and wonder if it is possible.. If I had I would provide. Kindest JP On Fri, Apr 24, 2020 at 11:00 AM Carl Eugen Hoyos wrote: > Am Fr., 24. Apr. 2020 um 09:22 Uhr schrieb Jens-Peter Sjöberg > : > > > I have tried to find out a way to change the FPS in the metadata for clp > > with a certain FPS. > > For real containers, such "metadata" does not exist / can rarely > be changed. > > > Is there a way to do this on the same clip without transcoding? > > This is unlikely but... > > > Sorry if this is to basic question, but I have search for a week now > > without any results. > > ... command line and complete, uncut console output missing. > > 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". -- *Jens-Peter Sjöberg* Creative Director / Producer https://jens-petersjoberg.com ___ 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] Can't write packet with unknown timestamp
On 04/24/2020 05:01 AM, Carl Eugen Hoyos wrote: Am Fr., 24. Apr. 2020 um 09:17 Uhr schrieb Mark Filipak : What's going wrong with my remux? I believe that you have already been told that you cannot generally concatenate vob files as you did, use mplayer -dumpstream. Carl Eugen Okay. What can be concatenated? That purpose does the 'concat:' filter serve? Thanks, Mark. ___ 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] ffmpeg architecture question #2
Hello, I've been told that, for soft telecined video |<--1/6s-->| [A/a__][B/b__][C/c__][D/d__] source the decoder is fully compliant and therefore outputs 30fps |<--1/6s-->| [A/a__][B/b__][C/c__][D/d__] source [A/a___][B/b___][B/c___][C/d___][D/d___] hard telecine I've also been told that the 30fps is interlaced (which I found surprising) |<--1/6s-->| [A/a__][B/b__][C/c__][D/d__] source [A/a___][B/b___][B/c___][C/d___][D/d___] hard telecine [A/-_][-/a_][B/-_][-/b_][B/-_][-/c_][C/-_][-/d_][D/-_][-/d_] i30, TFF Is this correct so far? Thanks, Mark. -- COVID-19 facts: The United States is 4% of world population, 32% of cases, 25% of deaths. The U.S. & S.Korea reported 1st cases on the same day. In March, week 2, S.Korea did 10,000 tests per day, 4 hour results. In March, week 2, The U.S. did 400 tests per day, 7 day results. ___ 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] Can't write packet with unknown timestamp
Am Fr., 24. Apr. 2020 um 09:17 Uhr schrieb Mark Filipak : > > What's going wrong with my remux? I believe that you have already been told that you cannot generally concatenate vob files as you did, use mplayer -dumpstream. 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".
Re: [FFmpeg-user] Change FPS on a clip without transcodng
Am Fr., 24. Apr. 2020 um 09:22 Uhr schrieb Jens-Peter Sjöberg : > I have tried to find out a way to change the FPS in the metadata for clp > with a certain FPS. For real containers, such "metadata" does not exist / can rarely be changed. > Is there a way to do this on the same clip without transcoding? This is unlikely but... > Sorry if this is to basic question, but I have search for a week now > without any results. ... command line and complete, uncut console output missing. 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".
Re: [FFmpeg-user] (no subject)
Am Fr., 24. Apr. 2020 um 10:01 Uhr schrieb Tajti Krisztian : > I have an issue where I start merging video and audio > and my mac will render it for a long time and also the file size > does not match the sum of the video and audio. > I tried it on a pc and it does it in one second (without rendering), > and the file size is the sum of the audio and video file. > > I used exactly the same command (and of c. same files) on both machines. > ffmpeg -i video.mp4 -i audio.wav -c:v copy -c:a aac output.mp4 > What could be wrong ? Complete, uncut console outputs missing. 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".
[FFmpeg-user] change inputs or mapping while recording
Hey! I have two identical rtsp video-sources stream1, stream2 and an audio source. I currently merge stream1 with the audio for a rtmp-server using: stream1="rtsp://streamurl1" /usr/bin/ffmpeg\ [...] -i "$stream1" \ [...] -itsoffset $AUDIOVIDEOOFFSET \ -f pulse \ -i default \ [...] -vcodec copy \ -map 0:v -map 1:a \ [...] -f flv "rtmp://streamingserver" I would now like to add stream2 as second video input and switch between stream1 and stream2 back and forth without interrupting the audio. Both streams are identical / come from identical cameras. Is there any sane way to do this with ffmpeg? Or how would you recommend doing it? Just stopping the process and restarting it using stream2 instead of stream1 with some timeoff on the rtmp-server should work but would result in several seconds outage on the stream and is the current the worst case scenario I would like to improve. Thanks a ton! Cheers, Stephan P.s. Maybe some additional visual information: Since students currently can't attend, we want to record university blackboard-lectures (math) but have an array of blackboards that each get its own camera. Hence we try to keep the audio stream running while switching the input source when the lecturer switches the blackboard. ___ 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] (no subject)
Hi, I have an issue where I start merging video and audio and my mac will render it for a long time and also the file size does not match the sum of the video and audio. I tried it on a pc and it does it in one second (without rendering), and the file size is the sum of the audio and video file. I used exactly the same command (and of c. same files) on both machines. ffmpeg -i video.mp4 -i audio.wav -c:v copy -c:a aac output.mp4 What could be wrong ? Regards, Krisztian ___ 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] Change FPS on a clip without transcodng
Hi everyone, I have tried to find out a way to change the FPS in the metadata for clp with a certain FPS. Is there a way to do this on the same clip without transcoding? Sorry if this is to basic question, but I have search for a week now without any results. Kindest JP ___ 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] Can't write packet with unknown timestamp
What's going wrong with my remux? '-dn' tells ffmpeg to ignore data (stream 0, i.e., nav packets) yet I get "Timestamps are unset in a packet for stream 0". Thanks, Mark. ffmpeg -i "concat:VTS_01_1.VOB|VTS_01_2.VOB|VTS_01_3.VOB|VTS_01_4.VOB|VTS_01_5.VOB|VTS_01_6.VOB" -map 0 -codec:v copy -codec:a copy -codec:s copy -dn "C:\AVOut\VTS_01_1.MKV" -y ffmpeg version git-2020-04-20-cacdac8 Copyright (c) 2000-2020 the FFmpeg developers built with gcc 9.3.1 (GCC) 20200328 configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf libavutil 56. 42.102 / 56. 42.102 libavcodec 58. 80.100 / 58. 80.100 libavformat58. 42.100 / 58. 42.100 libavdevice58. 9.103 / 58. 9.103 libavfilter 7. 79.100 / 7. 79.100 libswscale 5. 6.101 / 5. 6.101 libswresample 3. 6.100 / 3. 6.100 libpostproc55. 6.100 / 55. 6.100 Input #0, mpeg, from 'concat:VTS_01_1.VOB|VTS_01_2.VOB|VTS_01_3.VOB|VTS_01_4.VOB|VTS_01_5.VOB|VTS_01_6.VOB': Duration: 01:06:28.82, start: 0.039456, bitrate: 12486 kb/s Stream #0:0[0x1bf]: Data: dvd_nav_packet Stream #0:1[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, progressive), 720x480 [SAR 32:27 DAR 16:9], Closed Captions, 29.97 fps, 59.94 tbr, 90k tbn, 59.94 tbc Side data: cpb: bitrate max/min/avg: 750/0/0 buffer size: 1835008 vbv_delay: N/A Stream #0:2[0x80]: Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s Output #0, matroska, to 'C:\AVOut\VTS_01_1.MKV': Metadata: encoder : Lavf58.42.100 Stream #0:0: Video: mpeg2video (Main) (mpg2 / 0x3267706D), yuv420p(tv, progressive), 720x480 [SAR 32:27 DAR 16:9], q=2-31, 29.97 fps, 59.94 tbr, 1k tbn, 90k tbc Side data: cpb: bitrate max/min/avg: 750/0/0 buffer size: 1835008 vbv_delay: N/A Stream #0:1: Audio: ac3 ([0] [0][0] / 0x2000), 48000 Hz, stereo, fltp, 192 kb/s Stream mapping: Stream #0:1 -> #0:0 (copy) Stream #0:2 -> #0:1 (copy) Press [q] to stop, [?] for help [matroska @ 01b5fa53bac0] Timestamps are unset in a packet for stream 0. This is deprecated and will stop working in the future. Fix your code to set the timestamps properly [matroska @ 01b5fa53bac0] Can't write packet with unknown timestamp av_interleaved_write_frame(): Invalid argument frame=4 fps=0.0 q=-1.0 Lsize= 15kB time=00:00:00.09 bitrate=1251.4kbits/s speed=3.76x video:12kB audio:3kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown Conversion failed! ___ 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".
