Re: [FFmpeg-user] Understanding two pass encoding
On Sat, Aug 08, 2015 at 18:24:26 +0200, Henk D. Schoneveld wrote:
> former mail talks about
> /dev/nul
> NOT
> /dev/null
I can't find that mail?
Anyway, he meant that the non-/dev/null ("pass 2") output files are
empty.
Moritz
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Re: [FFmpeg-user] Understanding two pass encoding
On Sat, Aug 08, 2015 at 18:16:13 +0530, Robin Lery wrote: > Yes, thank you. I understand now. However I tried doing two pass multiple > output with one input like this: > > ffmpeg -i mi6.mp4 \ > -codec:v libx264 -tune zerolatency -profile:v main -preset medium -b:v > 1000k -maxrate 1000k -bufsize 1k -s hd720 -threads 0 -pix_fmt yuv420p > -pass 1 -passlogfile unique_id-hd720 -an -f mp4 /dev/null \ > -codec:v libx264 -tune zerolatency -profile:v baseline -level 3.0 > -preset medium -b:v 250k -maxrate 250k -bufsize 2500k -vf > scale="trunc(oh*a/2)*2:360" -threads 0 -pix_fmt yuv420p -movflags > +faststart -pass 1 -passlogfile unique_id-360 -an -f mp4 /dev/null && \ > -codec:v libx264 -tune zerolatency -profile:v main -preset medium -b:v > 1000k -maxrate 1000k -bufsize 1k -s hd720 -threads 0 -pix_fmt yuv420p > -pass 2 -passlogfile unique_id-hd720 -codec:a libfdk_aac -movflags > +faststart output/mi6-poty-720.mp4 \ > -codec:v libx264 -tune zerolatency -profile:v baseline -level 3.0 > -preset medium -b:v 250k -maxrate 250k -bufsize 2500k -vf > scale="trunc(oh*a/2)*2:360" -threads 0 -pass 2 -passlogfile unique_id-360 > -codec:a libfdk_aac -pix_fmt yuv420p -movflags +faststart > output/mi6-poty-360.mp4 No no no! That's _one_ ffmpeg command, right? You're now tring to do pass 1 and pass 2 in parallel. You're missing the point: ffmpeg _must_ be called twice (i.e. two passes) using the same input file _in succession_. The first pass creates the log file, the second pass uses that log file (_after_ it has been created by the first pass) to do the final encode. > When I run this command first I get this: > File '/dev/null' already exists. Overwrite ? [y/N] y > File '/dev/null' already exists. Overwrite ? [y/N] y ffmpeg doesn't know that this is a "special" file the contents of which may be overwritten, so it does ask. > Afterward there's two file with the specified name, but the file size is 0. > What's going on? You mean name_s_. Reason is above: You are not doing two successive passes. Moritz ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] libx265 - 8-bit vs. 10-bit?
Perhaps it is not so simple, but ... if 10-bit x264 is better quality than 8-bit x264, shouldn't 10-bit x265 (placebo) be better quality than 8-bit x265 (placebo)? But I know x264 and x265 are not similar in every respect and cannot always be directly compared... -- View this message in context: http://ffmpeg-users.933282.n4.nabble.com/libx265-8-bit-vs-10-bit-tp4671758p4671780.html Sent from the FFmpeg-users mailing list archive at Nabble.com. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] Understanding two pass encoding
On 08 Aug 2015, at 14:46, Robin Lery wrote: > Yes, thank you. I understand now. However I tried doing two pass multiple > output with one input like this: > > ffmpeg -i mi6.mp4 \ >-codec:v libx264 -tune zerolatency -profile:v main -preset medium -b:v > 1000k -maxrate 1000k -bufsize 1k -s hd720 -threads 0 -pix_fmt yuv420p > -pass 1 -passlogfile unique_id-hd720 -an -f mp4 /dev/null \ >-codec:v libx264 -tune zerolatency -profile:v baseline -level 3.0 > -preset medium -b:v 250k -maxrate 250k -bufsize 2500k -vf > scale="trunc(oh*a/2)*2:360" -threads 0 -pix_fmt yuv420p -movflags > +faststart -pass 1 -passlogfile unique_id-360 -an -f mp4 /dev/null && \ >-codec:v libx264 -tune zerolatency -profile:v main -preset medium -b:v > 1000k -maxrate 1000k -bufsize 1k -s hd720 -threads 0 -pix_fmt yuv420p > -pass 2 -passlogfile unique_id-hd720 -codec:a libfdk_aac -movflags > +faststart output/mi6-poty-720.mp4 \ >-codec:v libx264 -tune zerolatency -profile:v baseline -level 3.0 > -preset medium -b:v 250k -maxrate 250k -bufsize 2500k -vf > scale="trunc(oh*a/2)*2:360" -threads 0 -pass 2 -passlogfile unique_id-360 > -codec:a libfdk_aac -pix_fmt yuv420p -movflags +faststart > output/mi6-poty-360.mp4 > > > When I run this command first I get this: > > File '/dev/null' already exists. Overwrite ? [y/N] y > > File '/dev/null' already exists. Overwrite ? [y/N] y > > > Afterward there's two file with the specified name, but the file size is 0. > What's going on? former mail talks about /dev/nul NOT /dev/null > > > > On Thu, Aug 6, 2015 at 7:56 PM, Moritz Barsnick wrote: > >> Hi Robin, >> >> On Thu, Aug 06, 2015 at 19:42:39 +0530, Robin Lery wrote: >>> 2nd pass has more frames than 1st pass >> >> Because you didn't do a first pass. ;-) >> >>> So, my concern is how will ffmpeg know which one is the first pass so >> that >>> it can do its pass 2 encoding? >> >> ffmpeg stores its findings from the first pass in a log file, and >> reuses that during its second pass. >> >>> And since many videos will be uploaded simultaneously I can't keep >>> them all at the /dev/null as it will replace one with another. So how >>> can I manage it? >> >> If your Unix system is set up correctly, /dev/null has plenty of space >> for holding _all_ the first pass videos. ;-) (If you don't get the >> joke: Read up on /dev/null.) >> >> The problem will be that the log files will interfere with each other. >> Please do read ffmpeg's fine documentation on 2-pass encoding: >> >> ‘-pass[:stream_specifier] n (output,per-stream)’ >> >>Select the pass number (1 or 2). It is used to do two-pass video >>encoding. The statistics of the video are recorded in the first >>pass into a log file (see also the option -passlogfile), and in the >>second pass that log file is used to generate the video at the >>exact requested bitrate. On pass 1, you may just deactivate audio >>and set output to null, examples for Windows and Unix: >> >> ffmpeg -i foo.mov -c:v libxvid -pass 1 -an -f rawvideo -y NUL >> ffmpeg -i foo.mov -c:v libxvid -pass 1 -an -f rawvideo -y /dev/null >> >> ‘-passlogfile[:stream_specifier] prefix (output,per-stream)’ >> >>Set two-pass log file name prefix to prefix, the default file name >>prefix is “ffmpeg2pass”. The complete file name will be >>‘PREFIX-N.log’, where N is a number specific to the output stream >> >> This means if you do parallel encoding, you need to give each encode a >> unique file name prefix with "-passlogfile". You can generate unique >> file names (or prefixes) using "mktemp". For a web app like yours, I >> would alternatively probably generate unique temporary directories, and >> operate within them. >> >> HTH, >> Moritz >> ___ >> ffmpeg-user mailing list >> ffmpeg-user@ffmpeg.org >> http://ffmpeg.org/mailman/listinfo/ffmpeg-user >> > ___ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/ffmpeg-user ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] Data stream/timecode copy to ffv1/matroska
Carl Eugen writes: > Sounds like a performance issue that has nothing to do with mkv vs mov. Do you mean my system specs? 1080p FFV1.mkv plays back with just a little stuttering on a core i5 3570k in VLC, but FFV1.mov just doesn't display video at all, I only get audio on any PC I've tried and the VLC cone appears in the video display window. Anyhow it seems that the issue I'm having may have nothing to do with resolution. It seems that the issue is with the codec id? This error pops upin ffmpeg with ffv1.mov "[mov @ 0324ac40] Using MS style video codec tag, the file may be unplayable!" . The codec id, as displayed by mediainfo for ffv1.mov is 'FFV1', the codec id for ffv1.mkv is "V_MS/VFW/FOURCC / FFV1" Here's two ffmpeg logs, one for ffv1.mov, one for ffv1.mkv. C:\Users\kiera>ffmpeg -f lavfi -i testsrc -t 1 -c:v ffv1 -level 3 -g 1 -pix_fmt yuv422p10le ffv110.mkv ffmpeg version N-71346-gdf4fca2 Copyright (c) 2000-2015 the FFmpeg developers built with gcc 4.9.2 (GCC) configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enable-zlib libavutil 54. 22.101 / 54. 22.101 libavcodec 56. 34.100 / 56. 34.100 libavformat56. 30.100 / 56. 30.100 libavdevice56. 4.100 / 56. 4.100 libavfilter 5. 13.101 / 5. 13.101 libswscale 3. 1.101 / 3. 1.101 libswresample 1. 1.100 / 1. 1.100 libpostproc53. 3.100 / 53. 3.100 Input #0, lavfi, from 'testsrc': Duration: N/A, start: 0.00, bitrate: N/A Stream #0:0: Video: rawvideo (RGB[24] / 0x18424752), rgb24, 320x240 [SAR 1:1 DAR 4:3], 25 tbr, 25 tbn, 25 tbc [ffv1 @ 0495c140] bits_per_raw_sample > 8, forcing coder 1 Output #0, matroska, to 'ffv110.mkv': Metadata: encoder : Lavf56.30.100 Stream #0:0: Video: ffv1 (FFV1 / 0x31564646), yuv422p10le, 320x240 [SAR 1:1 DAR 4:3], q=2-31, 200 kb/s, 25 fps, 1k tbn, 25 tbc Metadata: encoder : Lavc56.34.100 ffv1 Stream mapping: Stream #0:0 -> #0:0 (rawvideo (native) -> ffv1 (native)) Press [q] to stop, [?] for help frame= 25 fps=0.0 q=0.0 Lsize= 87kB time=00:00:01.00 bitrate= 713.1kbits/s video:85kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.923297% C:\Users\kiera>ffmpeg -f lavfi -i testsrc -t 1 -c:v ffv1 -level 3 -g 1 -pix_fmt yuv422p10le ffv110.mov ffmpeg version N-71346-gdf4fca2 Copyright (c) 2000-2015 the FFmpeg developers built with gcc 4.9.2 (GCC) configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enable-zlib libavutil 54. 22.101 / 54. 22.101 libavcodec 56. 34.100 / 56. 34.100 libavformat56. 30.100 / 56. 30.100 libavdevice56. 4.100 / 56. 4.100 libavfilter 5. 13.101 / 5. 13.101 libswscale 3. 1.101 / 3. 1.101 libswresample 1. 1.100 / 1. 1.100 libpostproc53. 3.100 / 53. 3.100 Input #0, lavfi, from 'testsrc': Duration: N/A, start: 0.00, bitrate: N/A Stream #0:0: Video: rawvideo (RGB[24] / 0x18424752), rgb24, 320x240 [SAR 1:1 DAR 4:3], 25 tbr, 25 tbn, 25 tbc [ffv1 @ 0324b720] bits_per_raw_sample > 8, forcing coder 1 [mov @ 0324ac40] Using MS style video codec tag, the file may be unplayable! Output #0, mov, to 'ffv110.mov': Metadata: encoder : Lavf56.30.100 Stream #0:0: Video: ffv1, yuv422p10le, 320x240 [SAR 1:1 DAR 4:3], q=2-31, 200 kb/s, 25 fps, 12800 tbn, 25 tbc Metadata: encoder : Lavc56.34.100 ffv1 Stream mapping: Stream #0:0 -> #0:0 (rawvideo (na
[FFmpeg-user] Streaming equirectangular panoramic video
Hi all! I'm doing a project that consist on transmission and visualization of equirectangular panoramic video in low low latency. The video is played from a browser into the Oculus Rift. The streaming and visualization is now going right. However, we want to improve the results sending only in High Quality the image that the users are seeing in Oculus. For that, we know which is the zone to send with High Quality and know which need to send in low low quality to improve the system. Is it possible to stream with the explained pipeline? The determined zones of the video that wants in High Quality is possible that are changing in the time. It can be parametrize? Thanks all and best regard. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] Data stream/timecode copy to ffv1/matroska
Kieran O'Leary irishfilm.ie> writes: > > Please elaborate, this does not sound like a known > > issue to me. > > It's more of an issue with VLC. It plays back SD ffv1.mov > just fine, but it only plays back audio for HD content. Sounds like a performance issue that has nothing to do with mkv vs mov. Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] Data stream/timecode copy to ffv1/matroska
Carl Eugen writes: >Please elaborate, this does not sound like a known issue to me. It's more of an issue with VLC. It plays back SD ffv1.mov just fine, but it only plays back audio for HD content. I've never had any issues with .mkv. I've only ever used ffv1 with 10 bit content. Anyhow this is probably off-topic. -Kieran. -- This email has been scanned for spam and malware by The Email Laundry. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] error LNK2001 "ff_mpeg_er_init"
Am 08.08.2015 um 11:05 schrieb Carl Eugen Hoyos: Bernhard Döbler bardware.de> writes: --disable-everything \ --enable-encoder=mjpeg Should be fixed, thank you for the report! works! :) ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] libx265 - 8-bit vs. 10-bit?
On 8/8/15, Carl Eugen Hoyos wrote: > Paul B Mahol gmail.com> writes: > >> >> If I encoded to 10-bit libx265, would that produce a >> >> higher-quality video than 8-bit at the same bitrate? >> > >> > Yes, at least in theory. >> >> If the source is >8 bit depth. > > No, search for a darkshikari forum post where he > explains why (if x265 is as "good" as x264) using > ten bit increases quality even if the input was > eight bit. > (I cannot explain.) That is for x264. > > Carl Eugen > > ___ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] Data stream/timecode copy to ffv1/matroska
Kieran O'Leary irishfilm.ie> writes: > The reason that I wanted to use MKV was that FFV1 > doesn't work well for me in non SD resolutions in > a .mov container. Please elaborate, this does not sound like a known issue to me. Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] Data stream/timecode copy to ffv1/matroska
Hi Carl, As the file is a tape ingest, I was hoping to preserve the timecode if I could. The reason that I wanted to use MKV was that FFV1 doesn't work well for me in non SD resolutions in a .mov container. Keeping HD in v210.mov is just too large a file. Thanks, Kieran. -- This email has been scanned for spam and malware by The Email Laundry. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] Data stream/timecode copy to ffv1/matroska
Kieran O'Leary irishfilm.ie> writes: > I have a 1080p24 v210.mov file with 2 audio tracks and a > data track, which I'm assuming is the timecode. I want > to just transcode the video track to ffv1, and copy over > everything else into a matroska wrapper. Why? I mean it appears as if Matroska does not support it, so why are you trying? (Even if we found out that this is a limitation of FFmpeg and not the Matroska specification, it may not be fixed quickly.) > Is there an easier way to do this, and is it possible > to carry over timecode to matroska? No? (As you found out.) > It says that mkv only supports video, audio, subs. Which may indicate that the Matroska specification does not support anything else. (I don't know and it does not sound entirely correct to me but in any case, a patch has to be written.) Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] libx265 - 8-bit vs. 10-bit?
Paul B Mahol gmail.com> writes: > >> If I encoded to 10-bit libx265, would that produce a > >> higher-quality video than 8-bit at the same bitrate? > > > > Yes, at least in theory. > > If the source is >8 bit depth. No, search for a darkshikari forum post where he explains why (if x265 is as "good" as x264) using ten bit increases quality even if the input was eight bit. (I cannot explain.) Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] libx265 - 8-bit vs. 10-bit?
On 8/8/15, Carl Eugen Hoyos wrote: > ogrgkyle gmail.com> writes: > >> I am encoding with libx265 at very low bitrates, so I am >> trying to get every bit of quality I can into the videos. >> If I encoded to 10-bit libx265, would that produce a >> higher-quality video than 8-bit at the same bitrate? > > Yes, at least in theory. If the source is >8 bit depth. > > Carl Eugen > > ___ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] Understanding two pass encoding
Yes, thank you. I understand now. However I tried doing two pass multiple output with one input like this: ffmpeg -i mi6.mp4 \ -codec:v libx264 -tune zerolatency -profile:v main -preset medium -b:v 1000k -maxrate 1000k -bufsize 1k -s hd720 -threads 0 -pix_fmt yuv420p -pass 1 -passlogfile unique_id-hd720 -an -f mp4 /dev/null \ -codec:v libx264 -tune zerolatency -profile:v baseline -level 3.0 -preset medium -b:v 250k -maxrate 250k -bufsize 2500k -vf scale="trunc(oh*a/2)*2:360" -threads 0 -pix_fmt yuv420p -movflags +faststart -pass 1 -passlogfile unique_id-360 -an -f mp4 /dev/null && \ -codec:v libx264 -tune zerolatency -profile:v main -preset medium -b:v 1000k -maxrate 1000k -bufsize 1k -s hd720 -threads 0 -pix_fmt yuv420p -pass 2 -passlogfile unique_id-hd720 -codec:a libfdk_aac -movflags +faststart output/mi6-poty-720.mp4 \ -codec:v libx264 -tune zerolatency -profile:v baseline -level 3.0 -preset medium -b:v 250k -maxrate 250k -bufsize 2500k -vf scale="trunc(oh*a/2)*2:360" -threads 0 -pass 2 -passlogfile unique_id-360 -codec:a libfdk_aac -pix_fmt yuv420p -movflags +faststart output/mi6-poty-360.mp4 When I run this command first I get this: File '/dev/null' already exists. Overwrite ? [y/N] y File '/dev/null' already exists. Overwrite ? [y/N] y Afterward there's two file with the specified name, but the file size is 0. What's going on? On Thu, Aug 6, 2015 at 7:56 PM, Moritz Barsnick wrote: > Hi Robin, > > On Thu, Aug 06, 2015 at 19:42:39 +0530, Robin Lery wrote: > > 2nd pass has more frames than 1st pass > > Because you didn't do a first pass. ;-) > > > So, my concern is how will ffmpeg know which one is the first pass so > that > > it can do its pass 2 encoding? > > ffmpeg stores its findings from the first pass in a log file, and > reuses that during its second pass. > > > And since many videos will be uploaded simultaneously I can't keep > > them all at the /dev/null as it will replace one with another. So how > > can I manage it? > > If your Unix system is set up correctly, /dev/null has plenty of space > for holding _all_ the first pass videos. ;-) (If you don't get the > joke: Read up on /dev/null.) > > The problem will be that the log files will interfere with each other. > Please do read ffmpeg's fine documentation on 2-pass encoding: > > ‘-pass[:stream_specifier] n (output,per-stream)’ > > Select the pass number (1 or 2). It is used to do two-pass video > encoding. The statistics of the video are recorded in the first > pass into a log file (see also the option -passlogfile), and in the > second pass that log file is used to generate the video at the > exact requested bitrate. On pass 1, you may just deactivate audio > and set output to null, examples for Windows and Unix: > > ffmpeg -i foo.mov -c:v libxvid -pass 1 -an -f rawvideo -y NUL > ffmpeg -i foo.mov -c:v libxvid -pass 1 -an -f rawvideo -y /dev/null > > ‘-passlogfile[:stream_specifier] prefix (output,per-stream)’ > > Set two-pass log file name prefix to prefix, the default file name > prefix is “ffmpeg2pass”. The complete file name will be > ‘PREFIX-N.log’, where N is a number specific to the output stream > > This means if you do parallel encoding, you need to give each encode a > unique file name prefix with "-passlogfile". You can generate unique > file names (or prefixes) using "mktemp". For a web app like yours, I > would alternatively probably generate unique temporary directories, and > operate within them. > > HTH, > Moritz > ___ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
[FFmpeg-user] Data stream/timecode copy to ffv1/matroska
I have a 1080p24 v210.mov file with 2 audio tracks and a data track, which I'm assuming is the timecode. I want to just transcode the video track to ffv1, and copy over everything else into a matroska wrapper. Is there an easier way to do this, and is it possible to carry over timecode to matroska? It says that mkv only supports video, audio, subs. I did some googling and saw mention of "-dcodec copy", so I assumed "-c:d" would work too? Will I need to use "-map -0:d" to just disable the data stream? C:\Users\Ingest_1>C:\Users\Ingest_1\Downloads\ffmpeg-20150806-git-9c0407e-win64- static\ffmpeg-20150806-git-9c0407e-win64-static\bin\ffmpeg.exe -i "D:\Media\AC18 4 I Went Down MV6348.mov" -map 0 -c:v ffv1 -level 3 -g 1 -c:a copy -c:d copy "AC184_i_went_down_mv6348.mkv" ffmpeg version N-74313-g9c0407e Copyright (c) 2000-2015 the FFmpeg developers built with gcc 4.9.3 (GCC) configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab le-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca -- enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-l ibilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enab le-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --en able-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --ena ble-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enabl e-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --ena ble-decklink --enable-zlib libavutil 54. 30.100 / 54. 30.100 libavcodec 56. 57.100 / 56. 57.100 libavformat56. 40.101 / 56. 40.101 libavdevice56. 4.100 / 56. 4.100 libavfilter 5. 32.100 / 5. 32.100 libswscale 3. 1.101 / 3. 1.101 libswresample 1. 2.101 / 1. 2.101 libpostproc53. 3.100 / 53. 3.100 Guessed Channel Layout for Input Stream #0.2 : stereo Guessed Channel Layout for Input Stream #0.3 : stereo Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'D:\Media\AC184 I Went Down MV6348.mov': Metadata: creation_time : 2015-07-06 11:40:21 Duration: 01:48:34.50, start: 0.00, bitrate: 1066293 kb/s Stream #0:0(eng): Video: v210 (v210 / 0x30313276), yuv422p10le, 1920x1080, 1 061683 kb/s, SAR 1:1 DAR 16:9, 24 fps, 24 tbr, 24k tbn, 24k tbc (default) Metadata: creation_time : 2015-07-06 11:40:21 handler_name: Apple Alias Data Handler encoder : 10 bit YCbCr timecode: 10:22:04:08 Stream #0:1(eng): Data: none (tmcd / 0x64636D74) (default) Metadata: creation_time : 2015-07-06 11:40:21 handler_name: Apple Alias Data Handler reel_name : Untitled timecode: 10:22:04:08 Stream #0:2(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, 2 channels , s32 (24 bit), 2304 kb/s (default) Metadata: creation_time : 2015-07-06 11:40:21 handler_name: Apple Alias Data Handler Stream #0:3(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, 2 channels , s32 (24 bit), 2304 kb/s (default) Metadata: creation_time : 2015-07-06 11:40:21 handler_name: Apple Alias Data Handler File 'AC184_i_went_down_mv6348.mkv' al ready exists. Overwrite ? [y/N] y [ffv1 @ 00396b60] bits_per_raw_sample > 8, forcing coder 1 [matroska @ 00394160] Codec for stream 1 does not use global headers but container format requires global headers [matroska @ 00394160] Codec for stream 2 does not use global headers but container format requires global headers [matroska @ 00394160] Codec for stream 3 does not use global headers but container format requires global headers [matroska @ 00394160] Only audio, video, and subtitles are supported for Matroska. Output #0, matroska, to '\AC184_i_went_ down_mv6348.mkv': Metadata: encoder : Lavf56.40.101 Stream #0:0(eng): Video: ffv1 (FFV1 / 0x31564646), yuv422p10le, 1920x1080 [S AR 1:1 DAR 16:9], q=2-31, 200 kb/s, 24 fps, 1k tbn, 24 tbc (default) Metadata: creation_time : 2015-07-06 11:40:21 handler_name: Apple Alias Data Handler timecode: 10:22:04:08 encoder : Lavc56.57.100 ffv1 Stream #0:1(eng): Data: none (tmcd / 0x64636D74) (default) Metadata: creation_time : 2015-07-06 11:40:21 handler_name: Apple Alias Data Handler reel_name : Untitled timecode: 10:22:04:08 Stream #0:2(eng): Audio: pcm_s24le ([1][0][0][0] / 0x0001), 48000 Hz, stereo (24 bit), 2304 kb/s (default) Metadata: creation_time : 2015-07-06 11:40:21 handler_name: Apple Alias Data Handler Stream #0:3(eng): Audio: pcm_s24le ([1][0][0][0] / 0x0001), 48000 Hz, stereo (24 bit), 2304 kb/s (defa
Re: [FFmpeg-user] DTS Out of Order / DTS & PTS Invalid Dropping
Ryan Vincent gmail.com> writes: > The solution that I used to fix the problem was to > use an older version of the software. I ended up > all the way back on 2.3.5 You did not say that this was a regression;-( > before I found something that fixed this issue (at > the time). Work-around would have been to disable the image_pipe demuxers. > I currently use that version with no issues, but > I have no tried any of the other versions (since > November '14) to see if they fix the problem. It has become worse, the workaround is not possible anymore;-) I opened ticket #4765, thank you for the report! Please do not top-post here, Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] error LNK2001 "ff_mpeg_er_init"
Bernhard Döbler bardware.de> writes: > --disable-everything \ > --enable-encoder=mjpeg Should be fixed, thank you for the report! Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] libx265 - 8-bit vs. 10-bit?
ogrgkyle gmail.com> writes: > I am encoding with libx265 at very low bitrates, so I am > trying to get every bit of quality I can into the videos. > If I encoded to 10-bit libx265, would that produce a > higher-quality video than 8-bit at the same bitrate? Yes, at least in theory. Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
