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FFmpeg Codecs Documentation
https://ffmpeg.org/ffmpeg-codecs.html
The following options are mapped on the shared FFmpeg codec options. b. Set bit rate in bits/s. If the bitrate is not explicitly specified, it is automatically set to a suitable value depending on the selected profile. In case VBR mode is enabled the option is ignored. ar. Set audio sampling rate (in Hz). channels. Set the number of audio channels.
[SOLVED] converting to 3gp using ffmpeg - …
https://www.linuxquestions.org/questions/linux-software-2/converting-to-3gp-using-ffmpeg-835580/
The 3GP file format stores video streams as MPEG-4 Part 2 or H.263 or MPEG-4 Part 10 (AVC/H.264), and audio streams as AMR-NB, AMR-WB, AMR-WB+, AAC-LC, HE-AAC v1 or Enhanced aacPlus (HE-AAC v2). Also i tried with different input file
video - Issue with audio codec in ffmpeg - Stack Overflow
https://stackoverflow.com/questions/68345885/issue-with-audio-codec-in-ffmpeg
Issue with audio codec in ffmpeg. Ask Question Asked 6 ... To my little knowledge i believe this is an audio codec issue however since im not really familiar with ffmpeg, anything could be wrong. ... 0.100 / 4. 0.100 libpostproc 56. 0.100 / 56. 0.100 [mov,mp4,m4a,3gp,3g2,mj2 @ 000001f2b61fe100] st: 0 edit list: 1 Missing key frame while ...
convert avi to 3gp using ffmpeg - Stack Overflow
https://stackoverflow.com/questions/12598108/convert-avi-to-3gp-using-ffmpeg
The guy wants it in mpeg4 codec not x264. Here's how: ffmpeg.exe -i input.avi -acodec libvo_aacenc -ab 64k -vcodec mpeg4 -s 320x240 -b:v 400k -r 23.976 output.3gp In some phones 320x240 may seem stretchy, in that case use 320x180 instead
Audio Transcoding using FFmpeg - Change Audio Codecs using ...
https://ottverse.com/transcode-audio-codec-ffmpeg-without-changing-video/
Here, you are instructing FFmpeg to. read the input file named input_filename.avi that is in an avi media container that holds both the audio and video. copy the video content as is using the -vcodec copy parameter (no video re-encoding), use mp3 audio codec to re-encode the audio ; and provide the output in an avi file with the newly encoded ...
FFmpeg Formats Documentation
https://ffmpeg.org/ffmpeg-formats.html
You can select the output format of each frame with ffmpeg by specifying the audio and video codec and format. For example to compute the CRC of the input audio converted to PCM unsigned 8-bit and the input video converted to MPEG-2 video, use the command: ffmpeg -i INPUT -c:a pcm_u8 -c:v mpeg2video -f crc -.
codecs - How can I convert .mp4 files to .3gp using …
https://askubuntu.com/questions/133287/how-can-i-convert-mp4-files-to-3gp-using-ffmpeg
ffmpeg -y -i dil.mp4 -r 20 -s 352x288 -b 400k -acodec libfaac -ac 1 -ar 2000 -ab 24k dilenada.3gp. I got: Seems stream 0 codec frame rate differs from container frame rate: 2000.00 (2000/1) -> 29.92 (359/12) Unknown encoder 'libfaac'.
Quick ffmpeg tricks (extract audio, convert audio codec of ...
https://rakhesh.com/gadgets/quick-ffmpeg-tricks-extract-audio-convert-audio-codec-of-a-video/
For converting only the audio here’s the command I use: c:\> ffmpeg -i "input file.xxx" -vcodec copy -acodec libmp3lame "output file.xxx". 1. c:\> ffmpeg -i "input file.xxx" -vcodec copy -acodec libmp3lame "output file.xxx". The syntax is pretty obvious. The input file is taken, the video codec is copied as-is to the new file, the audio codec is re-encoded to mp3.
FFmpeg list all codecs, encoders, decoders and formats – write
https://write.corbpie.com/ffmpeg-list-all-codecs-encoders-decoders-and-formats/
A codec is the logic to encoding or decoding a media stream, there are many different types with popular ones being H.264, HEVC (H.265) and MPEG-4.. Codecs are different to containers like MP4, MKV and MOV because a codec manages the bitrate, resolution and frames whilst the container organizes and returns the data as sequence. Think putting many …
Lossless convert 3gp video to mp4 using ffmpeg - Video ...
https://video.stackexchange.com/questions/33752/lossless-convert-3gp-video-to-mp4-using-ffmpeg
If the codecs of your input file are already h264 and aac for video and audio, respectively, you can just copy without decoding and encoding again. ffmpeg -i input.3gp -c:v copy -c:a copy output.mp4 The options -c:v copy and -c:a …
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