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Ffmpeg subtitle delay

When I tried to mux the .ass file together with a video.mkv file using ffmpeg and the following command, the subtitles timing gets messed up and delayed (through checking the resulting .mkv with embedded .ass in Aegisub): ffmpeg -i video.mkv -i subtitles.ass -map 0 -map 1 -c copy -output.mkv First text line from 00:14.44 - 00:17-7 Reference. # Delay audio by 3 seconds $ ffmpeg -i input.mov -itsoffset 3 -i input.mov -map 0:v -map 1:a -codec:a copy -codec:v copy output.mov # Delay video by 3 seconds (ie. advance audio by 3 seconds) $ ffmpeg -i input.mov -itsoffset 3 -i input.mov -map 1:v -map 0:a -codec:a copy -codec:v copy output.mov ffmpeg -i sintel-1024-surround.mp4 -ss 102.042 -t 24.250 -an -c:v libvpx -vf scale=640:-1,subtitles=sintel_en.srt out.webm That way subtitles burned correct, and there is no need in explicitly specifying timing for subtitles. But slow seek mode is not convenient. There is often a very huge delay before encoding start that way, which is only get worse on huge files

If a subtitle encoder is specified for an output file, the first subtitle stream found of any type, text or image, will be included. ffmpeg does not validate if the specified encoder can convert the selected stream or if the converted stream is acceptable within the output format. This applies generally as well: when the user sets an encoder manually, the stream selection process cannot check if the encoded stream can be muxed into the output file. If it cannot, ffmpeg will abort an 126 5. 696 posts. Share. Posted July 15, 2020 (edited) @softworkz. In my logs im getting lots of fails for subtitle extracts. 2020-07-15 22:11:38.135 Info SubtitleEncoder: ProcessRun 'ffmpeg-subtitle_extract' Execute: C:\Users\mickl\AppData\Roaming\Emby-Server\system\ffmpeg.exe -i file:F:\Cache\cache\temp\b35d3bd3-fefe-40a3-8b2b-b3c4d8ebe486.txt.

ffmpeg creates subtitles delay - Doom9's Foru

Same as above but use the -map option to choose the first video stream, second audio stream, and third subtitle stream: ffmpeg -i input.mkv -map 0:v:0 -map 0:a:1 -map 0:s:2 -c:v libx264 -c:a aac -c:s mov_text -metadata:s:s:0 language=eng output.mp4 Hardsubs Text based subtitle format inputs. Use the subtitles filter to burn-in text based subtitle formats (SRT, ASS, VTT, etc). Note that this. Subtitle timings are okay. At least I believe so (on every other device and platform it works well). This particular device has low memory which might cause these symptoms and I wanted to know if there is something I can still try. So to answer: if I change the subtitle timings it would ruin the subs on the other platforms and on other devices

The following documentation is regenerated nightly, and corresponds to the newest FFmpeg revision. Consult your locally installed documentation for older versions ffmpeg of episode not working on RPi but run through Handbrake Web optimized so that moov is at the top of the file. ffmpeg of episode not working onRPi. Mediainfo on the Mac for an episode that does not play on the RPi shows up as this. mediainfo on Mac (ripped episode) where moov atom is detected properly. And on the RPi as thi Shifting Subtitle Streams To add a fixed amount of subtitle delay to a subtitle file so the timestamps are all shifted, you can abuse ffmpeg's timestamp manipulation. ffmpeg -itsoffset AMOUNT_OF_DELAY_TO_ADD -i input.ass output.as http://ffmpeg.org/pipermail/ffmpeg-devel/2012-August/129111.html fixes all the issues. You need to add -fix_sub_duration to the input and either -analyzeduration 20E6 to the input or -s:s 1920x1080 to the output. The subtitles will stay huge in certain players, but it works at least in MPlayer This is the complete list that's outputted by ffmpeg when running ffmpeg -h full. usage: ffmpeg [options] [ [infile options] -i infile] { [outfile options] outfile}. See man ffmpeg for detailed description of the options. -target type specify target file type (vcd, svcd, dvd, dv, dv50, pal-vcd, ntsc-svcd,

ffprobe (and ffmpeg) reports no audio nor subtitle stream. I'd like to provide the VOB file but I can't for legal reasons. I tried to cut the file (with dd ) to give a small sample but ffprobe behaviour seems to depend on the length of the resulting VOB file (with 10MB, all the audio streams are found but non of the subtitles streams for instance; at 500MB, just one audio stream is available) Output with overlay subtitles which looks correct: ffmpeg -y -i input.mp4 -i subtitles.sup -filter_complex [1:s]scale=width=1920:height=1080[sub];[0:v][sub]overlay -vcodec libx264 -crf 24 -f mpegts output_overlay.ts ffmpeg version N-90553-gbe502ec6cd Copyright (c) 2000-2018 the FFmpeg developers built with gcc 7.3.0 (GCC) configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable. ffmpeg -re -i dvbsub_udp_issue_6165.ts -map 0 -c copy -f mpegts udp://@239.1.1.1:1234 Playback is choppy and seem to struggle every time a subtitle times out/should disappear. If I exclude the subtitle track, playback is fine without issues. ffmpeg -re -i dvbsub_udp_issue_6165.ts -map 0 -map -0:s -c copy -f mpegts udp://@239.1.1.1:123

The delay is only .15 seconds. CASE 2: Video happens before audio (aka need to delay video stream 0): ffmpeg -i clip.mp4 -itsoffset 0.150 -i clip.mp4 -vcodec copy -acodec copy -map 0:1 -map 1:0 output.mp4. The itsoffset in the above example is placed before file 1. When the mapping happens, it says Take the audio of file 0 and the video of file 1, leave the audio of file 0 alone and apply the offset to the video of file 1 and merge them into a new output file. ffmpeg -i xr.mp4 -i xr.en.srt -c copy -c:s mov_text -disposition:s forced ya.mp4. However after having tried it with both forced and default, the subtitles marked by FFmpeg are not recognized as forced by VLC. To respond to the comment, here is a test with MP4Box 0.7.0 (Apr 2017) and VLC 3.0.0-20170926 (Sep 2017) The server on which FFmpeg and MPlayer Trac issue trackers were installed was compromised. The affected server was taken offline and has been replaced and all software reinstalled. FFmpeg Git, releases, FATE, web and mailinglists are on other servers and were not affected. We believe that the original compromise happened to a server, unrelated to FFmpeg and MPlayer, several months ago. That server was used as a source to clone the VM that we recently moved Trac to. It is not known if anyone.

ffmpeg -i input -map 0 -c copy output 1st video stream, 2nd audio stream, all subtitles ffmpeg -i input -map 0:v:0 -map 0:a:1 -map 0:s -c copy output 3rd video stream, all audio streams, no subtitles. This example uses negative mapping to exclude the subtitles. ffmpeg -i input -map 0:v:2 -map 0:a -map -0:s -c copy outpu $ ffmpeg -itsoffset N -i input_file.mkv The -itsoffset flag delays/hastens the whole input file. Here N stands for the number of seconds that should be delayed/hastened. Fractional values are also allowed. Although, you have to consider the following when changing the offset: A positive value of N delays the stream; A negative value of N hastens the strea $ ffmpeg -i deal.gif out.avi ffmpeg version N-60911-g2673357 Copyright (c) 2000-2014 the FFmpeg developers built on Feb 26 2014 01:13:47 with gcc 4.7 (SUSE Linux) configuration: --enable-gpl libavutil 52. 66.100 / 52. 66.100 libavcodec 55. 52.102 / 55. 52.102 libavformat 55. 33.100 / 55. 33.100 libavdevice 55. 10.100 / 55. 10.100 libavfilter 4. 1.103 / 4. 1.103 libswscale 2. 5.101 / 2. 5.101 libswresample 0. 18.100 / 0. 18.100 libpostproc 52. 3.100 / 52. 3.100 Input #0, gif, from 'deal.gif. ffmpeg -i sound.wav -i original_video.avi final_video.mpg Add Text Subtitles to a Video. If you have subtitles for a movie or documentary, it is possible to use FFmpeg to insert them into your video file: ffmpeg -i input.mp4 -i subtitles.srt -c copy -c:s mov_text output.mp4 Image Overlay on a Video. Let's finish this round-up with an advanced.

GitHub - yuanqing/ffmpeg-cheatsheet: A cheatsheet for

  1. We can also add subtitles to a video file using FFmpeg. Download the correct subtitle for your video and add it your video as shown below. $ fmpeg -i input.mp4 -i subtitle.srt -map 0 -map 1 -c copy -c:v libx264 -crf 23 -preset veryfast output.mp4 19. Preview or test video or audio files. You might want to preview to verify or test whether the output file has been properly transcoded or not. To.
  2. $ mkvinfo 1.webm | grep delay | + Codec delay: 6.500ms (6500000ns) $ ffmpeg -i 1.webm -c copy 2.webm $ mkvinfo 2.webm | grep delay | + Codec delay: 7.000ms (7000000ns) Thus Firefox still doesn't want to play it because codec delay doesn't match preskip value (at stated in bugzilla ticket)
  3. When clipping and transmuxing to mp4 (eg, -ss <seek> -i <in>), the duration of the resulting clip includes the edit list delay (start time offset from the beginning of the clip). This does not match the actual track duration. Generated the source (also attached): ffmpeg -f lavfi -i testsrc=duration=20:rate=30 -an -c:v libx264 -g 60 test-timecode.mp
  4. I know that in this particular case I can use mkvmerge, but it wouldn't work for .mp4 mov_text (.ttxt) subtitles, and anyway I would like to understand what is wrong with my ffmpeg command. ffmpeg subtitles mk
  5. FFmpeg | Adding Subtitle to a Movie. Watch later. Share. Copy link. Info. Shopping. Tap to unmute. If playback doesn't begin shortly, try restarting your device. You're signed out
  6. delay: numeric, time delay between frames in output video. Alternative to rate. See details. start: integer, frame to start from in input image sequence. Defaults to start=1. size: character, the dimensions of the video output. Defaults to source, which is equal to the dimensions of the input files. Otherwise scaling is performed on the output. See details. preset: character, encoding.
  7. Low Prices on Ffmpeg. Free UK Delivery on Eligible Order

Doom9's Forum > General > Subtitles > ffmpeg creates subtitles delay. PDA. View Full Version : ffmpeg creates subtitles delay. carlosrodriguez. 10th July 2020, 23:44. Hi everyone I want to mux a .ass subtitles file into a matroska container together with a video stream. First I checked the .ass file in Aegisubs before muxing and I got the following timing on the individual subtitles lines. [PATCH 1/3] ffplay: remove delays when paused from video and subtitle threa

If you're getting the subtitles from a separate file (ending in .srt) then the easiest way is to paste them into this website, change the delay on the right hand side and press Simple delay to download a new subtitle file to set it up to include the delay.--- Note, I found this on google, but its too confusing to figure out:--> http://howto-pages.org/ffmpeg/#delay DELAYING THE AUDIO OR THE VIDEO Depending on how your original files were generated, it could happen that the sound and the picture become out of sync when you start processing them with ffmpeg. Thankfully, there's a mechanism that will allow you to stagger the audio and video with respect to each other in the output, thus bringing them. Delay audio by 3.84 seconds: ffmpeg -i in.mp4 -itsoffset 3.84 -i in.mp4 -map 0:v -map 1:a -vcodec copy -acodec copy out.mp4 Burn subtitles. Use the libass library (make sure your ffmpeg install has the library in the configuration --enable-libass). First convert the subtitles to .ass format: ffmpeg -i sub.srt sub.ass Then add them using a video filter [PATCH 1/6] ffmpeg: add an option to fix subtitles durations. (too old to reply) Nicolas George 2012-08-07 19:13:29 UTC. Permalink +Note that this option will delay the output of all data until the next +subtitle packet is decoded: it may increase memory consumption and latency a +lot. + +@end table + @section Audio/Video grab options @table @option diff --git a/ffmpeg.c b/ffmpeg.c index.

#3852 (Specifing subtitle timing in fast seek mode) - FFmpe

The subtitles are fine, but come with about 2,5 seconds delay. I'd like to shift time subtitles, i.e. display them 2,5 seconds earlier. Am not an expert. Any portable windows tool that can do this 'batch time shift' Also, I assume will the subtitle be 'burned in' then? Thanks! [rtsp @ 0x32ce310] max delay reached. need to consume packet [rtsp @ 0x32ce310] RTP: missed 518 packets [rtsp @ 0x32ce310] max delay reached. need to consume packet [rtsp @ 0x32ce310] RTP: missed 41 packets More than 1000 frames duplicated [rtsp @ 0x32ce310] max delay reached. need to consume packetbitrate= 260.2kbits/s dup=1388 drop=5 speed=0.458

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ffmpeg Documentatio

ffmpeg subtitile extraction failed - General/Windows

The offset is added to the timestamps of the input files. Specifying a positive offset means that the corresponding streams are delayed by 'offset' seconds. -timestamp time Set the timestamp. -metadata key=value Set a metadata key/value pair. For example, for setting the title in the output file: ffmpeg -i in.avi -metadata title=my title out.flv-v numbe FFmpeg Batch AV Converter is a free universal audio and video encoder, that allows to use the full potential of ffmpeg command line with a few mouse clicks in a convenient GUI with drag and drop, progress information. Thanks to its multi-file encoding feature, it may be the fastest a/v batch encoder available, since it maximizes system resources usage by launching as many simultaneous. ffmpeg -i 3hk.mp4 -i cu.aac -filter_complex amix=inputs=2:duration=first:dropout_transition=2 a.mp4. 加字幕. 指定字体,例子如下: ffmpeg -i o.mp4 -vf subtitles=st.srt:force_style='FontName=Microsoft YaHei' out.mp4. 字幕+PA

ffmpeg - How do I add and/or keep subtitles when

  1. FFmpeg allows you to add subtitles to a video file. To do so, download the correct subtitle for a video and add it: To do so, download the correct subtitle for a video and add it: $ ffmpeg -i input_video.mp4 -i subtitle.srt -map 0 -map 1 -c copy -c:v libx264 -crf 23 -preset veryfast output_video.mp
  2. The details of the -fix_sub_duration option can be found in the FFmpeg-all man pages but I have taken the liberty of quoting these details here:-fix_sub_duration. Fix subtitles durations. For each subtitle, wait for the next packet in the same stream and adjust the duration of the first to avoid overlap. This is necessary with some subtitles.
  3. I know just the manual way: First run FFmpeg without specifying an output:./ffmpeg -i http://my.hls/master.m3u8 This prints all variants with a number (program ID). Choose the variant with the highest variant_bitrate and resolution. Then run FFmpeg and specify the program index (use a number for $index)
  4. Kirara Encoder is an open-source conversion tool that uses ffmpeg to allow you to convert from and to many different video and audio formats. Designed for performance, Kirara also supports features including burn-in subtitle support, basic editing (segment/crop, audio/subtitle delay), encoding presets and more
  5. https://ffmpeg.org/pipermail/ffmpeg-devel/2014-September/162532.html http://thread.gmane.org/gmane.comp.video.ffmpeg.devel/191788/focus=192232 2) I've tried instead to convert PGS to dvdsubs - that appears to work fin
  6. Toggle navigation Patchwork FFmpeg Patches Bundles About this project Login; Register; Mail settings; Show patches with: Submitter = Rodger Combs | State = Action Required | Archived = No | 136 patches « 1 2 » Patch Series A/L/R/T S/W/F Date Submitter Delegate State.
  7. Fixed: Audio delay could sometimes be detected as -1. Fixed: Opening a project file did not work. Fixed: Overscan border option adds top and bottom overscan bars again, now also of the proper size. Fixed: Using MicroDVD subtitles caused incomplete encodes (up until the first subtitle)

Playback in browser, subtitle is out of sync - General

  1. g, Audio Processing, Canon 5D-MK4, Panasonic LUMIX GH5S, Kodak PIXPRO SP360 4K, Ricoh Theta V, Synthesizers, Image Processing and Astronomy Software by Michael Koch, astroelectronic@t-online.de Version from May 2, 2021
  2. Note that this option will delay the output of all data until the next subtitle packet is decoded: it may increase memory consumption and latency a lot. You will note that this is the first of the Advanced Subtitle options, the second being the -canvas_size that you have already used... Share. Improve this answer. Follow answered Jun 5 '19 at 9:47. andrew.46 andrew.46. 186 3 3 bronze badges. 1.
  3. ffmpeg -i input_filename.avi -c:v copy -c:a copy -y output_filename.mp4. Here you are telling FFMpeg the following things - the AVI video is the input; specifying the name of the output MP4 file, instructing FFmpeg to directly copy the audio and video (seen here: -c:v copy -c:a copy) from the AVI container format to the MP4 container format
  4. Required number of additionally allocated bytes at the end of the input bitstream for decoding. This is mainly needed because some optimized bitstream readers read 32 or 64 bit at once and could read over the end

MythTV has since the 0.22 ffmpeg sync not had great support for DVB subtitles. They are delayed - and this off course has very low WAF. Theres a bug report on it, fix is seemingly a somewhat large rewrite and ha Fix subtitle scale set in inspector being applied incorrectly (Johan Lundström). New MPlayer build from 10. November 2013 (r36505): FFmpeg-MT has been merged into main FFmpeg! No longer separate binaries for the two. Set up build system from scratch and removed lots of libraries. Now using system libraries where possible, removed features.

Documentation - FFmpe

使用ffmpeg进行简单的视频编辑之 6. 字幕(subtitle) How to delay subtitles in ffmpeg; 点赞 ; 评论; 分享. x. 海报分享 扫一扫,分享海报 收藏 1 打赏. 打赏. 亚林瓜子. 你的鼓励将是我创作的最大动力. C币 余额. 2C币 4C币 6C币 10C币 20C币 50C币. 确定. 举报; 关注 关注; 一键三连. 已标记关键词 清除标记. 一键无损重新. FFmpeg is a free and open-source software project consisting of a large suite of libraries and programs for handling video, audio, and other multimedia files and streams. At its core is the FFmpeg program itself, designed for command-line-based processing of video and audio files. It is widely used for format transcoding, basic editing, video scaling, video post-production effects and standards compliance. FFmpeg includes libavcodec, an audio/video codec library used by many. There is no universal detection mode. Use --subcp=guess:help to get a list of languages (like with ENCA, it will be printed only if the conversion code is somehow called, for example when loading an external subtitle). --sub-delay=<sec> Delays subtitles by <sec> seconds. Can be negative

What is vbv_delay : ffmpe

$ ffmpeg -i input.avi -c copy -c:v libx264 -crf 18 -preset slow output.mkv # H265-c:v libx265 -crf 22 Append Subtitles $ ffmpeg -i input.mkv -i input.srt -map 0 -map 1 -c copy output.mkv Concat Videos $ ls *.mkv > mylist.txt $ vim mylist.txt # append each line with file $ ffmpeg -f concat -i mylist.txt -c copy merged-pre-subbed.mk ffmpeg player multiple free download. NewPipe Like watching YouTube videos on your Android device but hate how much it invades your privacy? Now

By default, ffmpeg includes only one stream of each type (video, audio, subtitle) present in the input files and adds them to each output file. It picks the ``best'' of each based upon the following criteria: for video, it is the stream with the highest resolution, for audio, it is the stream with the most channels, for subtitles, it is the first subtitle stream. In the case where several. ffmpeg; subtitles; Die konvertierte FFMPEG-SRT-Datei von VTT hat ein zeitübergreifendes Problem 684 Mubbashar 2017-10-28 в 15:02 Ich verwende FFMPEG, um VTT-Dateien in SRT zu konvertieren. Die Ausgabedatei hat jedoch ein überlappendes Problem. Ich brauche Hilfe, um dieses überlappende Problem zu beheben. Subtitle encoding failed1.0 size= 182919kB time=00:00:00.00 bitrate= 0.0kbits/s The interesting point is that ffplay and mplayer both can play the input file and they show the subtitle properly. Here is the output of ffmpeg -version command : ffmpeg version 0.10.2-4:0.10.2-0ubuntu0jon1~oneiric1 built on Mar 18 2012 11:07:55 with gcc 4.6. It is safe to flush even those decoders that are not - * marked with CODEC_CAP_DELAY, then no subtitles will be returned. + * marked with AV_CODEC_CAP_DELAY, then no subtitles will be returned. * * @note The AVCodecContext MUST have been opened with @ref avcodec_open2() * before packets may be fed to the decoder. _____ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.or Pressing these shortcuts keys will delay or forward the subtitles by 50 ms. You can synchronize the subtitles with the movie this way. Now, 50 milliseconds is not a lot of time and you may feel nothing has changed. If you want to move the subtitles ahead or back more quickly, hold the H or G key for some time. This solution only work in the case when the delay between dialogue and subtitle is.

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In this article, I will show you simple and easy steps to install ffmpeg on RHEL/CentOS 7/8. ffmpeg is a free and open source command line tool in Linux based servers for handling video, audio and other multimedia files. ffmpeg contains audio/video codec library and other important libraries to encode and decode multimedia files Previously I was able to stream my camera using FFmpeg and libx264 encoder/decoder, it was said since this is software-based, it will most likely cause a delay, thus I followed a tutorial in getting my h264_mmal & h264_omx libraries installed for FFmpeg, see this FFmpeg setup script adapted from this and this. My script simply adds If subtitle burn-in is defined for a job without subtitles they will be skipped and so on. Therefore you can use the same preset for making moves and / or audio files. Preset name. In this field you must specify a name for the preset. It is recommended to specify a unique name that describes the preset well to make it easier to select the proper preset later..

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