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Audio Stream Specifier Need to Change for MP2 & MP3 - …
https://trac.ffmpeg.org/ticket/5388
In the standart, MPEG2 Audio need to have specifier of 0x04. However, in FFmpeg libavformat/mpegtsenc.c file in Line 310, the definition is: case AV_CODEC_ID_MP2: case AV_CODEC_ID_MP3: stream_type = STREAM_TYPE_AUDIO_MPEG1; Where in libavformat/mpegts.h STREAM_TYPE_AUDIO_MPEG1 defined as; At Line 47: #define …
ffmpeg keeps converting second ac3 audio stream to …
https://stackoverflow.com/questions/8670068/ffmpeg-keeps-converting-second-ac3-audio-stream-to-mp2
ffmpeg does its work, except for the fact that it converts the second track to mp2, 64 kb/s. Here is a relevant excerpt from the output, where the key part is 'Stream #0.2: Audio: mp2, 48000 Hz, stereo, s16, 64 kb/s' where I would like 'Stream …
How to use FFMpeg to do Simple Audio Conversion
https://www.howtoforge.com/tutorial/ffmpeg-audio-conversion/
ffmpeg -formats. and. ffmpeg -codecs. and all supported forms will be displayed. You can use one input file to get several different output files by just entering the name and the prefix like this: ffmpeg -i filename.mp3 newfilename.wav newfilename.ogg newfilename.mp4. This will result in converting 3 output audio files (wav,ogg,mp4) from one ...
Useful FFmpeg Syntax Examples - VideoHelp Forum
https://forum.videohelp.com/threads/277807-Useful-FFmpeg-Syntax-Examples
MPEG-2 Program Stream Muxing ffmpeg -genpts 1 -i ES_Video.m2v -i ES_Audio.mp2 -vcodec copy -acodec copy -f vob output.mpg MPEG-2 Program Stream Demuxing ffmpeg -i input.mpg -vcodec copy -f mpeg2video ES_Video.m2v -acodec copy -f mp2 ES_Audio.mp2 Note : This also works for files containing multiple audio tracks : ffmpeg -i …
Encode/MP3 – FFmpeg
https://trac.ffmpeg.org/wiki/Encode/MP3
FFmpeg MP3 Encoding Guide. This page describes how to use the external libmp3lame encoding library within ffmpeg to create MP3 audio files (ffmpeg has no native MP3 encoder). See also other codecs you could use, and FFmpeg AAC Encoding Guide if you want AAC instead, and the official documentation.. VBR Encoding. Example to encode VBR MP3 audio …
ffmpeg - Trim audio file using start and stop times - Unix ...
https://unix.stackexchange.com/questions/182602/trim-audio-file-using-start-and-stop-times
Stop writing the output or reading the input at position. position must be a time duration specification, see (ffmpeg-utils)the Time duration section in the ffmpeg-utils (1) manual. -to and -t are mutually exclusive and -t has priority. This should create a copy (file-2.mkv) of file.mkv from the 20 second mark to the 40 second mark.
MPEG-1 Audio Layer II - Wikipedia
https://en.wikipedia.org/wiki/MPEG-1_Audio_Layer_II
MPEG-1 Audio Layer II or MPEG-2 Audio Layer II (MP2, sometimes incorrectly called Musicam or MUSICAM) is a lossy audio compression format defined by ISO/IEC 11172-3 alongside MPEG-1 Audio Layer I and MPEG-1 Audio Layer III (MP3). While MP3 is much more popular for PC and Internet applications, MP2 remains a dominant standard for audio broadcasting. [citation needed
How-To: here's how I convert troubling MPA to MP2 to WAV ...
https://forum.videohelp.com/threads/245145-How-To-here-s-how-I-convert-troubling-MPA-to-MP2-to-WAV
to AC3 and MP2 audio, not WAV. So, in this last step, the final output is now MP2->MP2 audio. By now, I import this MP2 (w/ 384k) audio into HeadAC3he and process it as a WAV audio file. This works. Somehow, ffmpegGUI (using whatever command-line settings) is successfully creating a workable type .mp2 audio that TMPGEnc likes.
FFmpeg Codecs Documentation
https://ffmpeg.org/ffmpeg-codecs.html
For the documentation of the undocumented generic options, see the Codec Options chapter . To get more documentation of the libvpx options, invoke the command ffmpeg -h encoder=libvpx, ffmpeg -h encoder=libvpx-vp9 or vpxenc --help. Further information is available in the libvpx API documentation. Set bitrate in bits/s.
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