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Encode/AAC - FFmpeg
https://trac.ffmpeg.org/wiki/Encode/AAC#:~:text=FFmpeg%20supports%20two%20AAC-LC%20encoders%20%28aac%20and%20libfdk_aac%29,incompatible%20code%20when%20GPL-licensed%20code%20is%20also%20included.
Encode/HighQualityAudio – FFmpeg
https://trac.ffmpeg.org/wiki/Encode/HighQualityAudio
Avoid transcoding from a lossy format to the same or another lossy format when possible. Transcode to lossy from the lossless source (if you have it), or just copy the lossy source audio track instead of transcoding. Another option if you have a lossless source is to transcode it to another lossless codec, like flacor TrueHD (last one nee…
c++ - Encoding audio data using ffmpeg - Stack Overflow
https://stackoverflow.com/questions/56368106/encoding-audio-data-using-ffmpeg
I am receiving a byte array ( int8_t*) and I would like to use FFMPEG to encode it into FLAC. All the examples I found are reading data from files, which is not the case for me. Following the original documents (see here ), I came up with the following solution: #include "libavcodec/avcodec.h" // ... // params: // audioData: original audio data // len: length of the byte …
FFmpeg/encode_audio.c at master · FFmpeg/FFmpeg · …
https://github.com/FFmpeg/FFmpeg/blob/master/doc/examples/encode_audio.c
static void encode (AVCodecContext *ctx, AVFrame *frame, AVPacket *pkt, FILE *output) {int ret; /* send the frame for encoding */ ret = avcodec_send_frame (ctx, frame); if (ret < 0) {fprintf (stderr, " Error sending the frame to the encoder \n "); exit (1);} /* read all the available output packets (in general there may be any * number of them */ while (ret >= 0)
Audio Transcoding using FFmpeg - Change Audio Codecs using ...
https://ottverse.com/transcode-audio-codec-ffmpeg-without-changing-video/
ffmpeg -i input_filename.avi -acodec mp3 -vcodec copy output_filename.avi 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),
FFmpeg Codecs Documentation
https://ffmpeg.org/ffmpeg-codecs.html
Options may be set by specifying - option value in the FFmpeg tools, or by setting the value explicitly in the AVCodecContext options or using the libavutil/opt.h API for programmatic use. The list of supported options follow: b integer (encoding,audio,video) Set bitrate in bits/s. Default value is 200K. ab integer (encoding,audio)
using ffmpeg to extract audio from video files · GitHub
https://gist.github.com/jeffersonvventura/cff5b855d10a7159eb5f587cc8d1e279
using ffmpeg to extract audio from video files. GitHub Gist: instantly share code, notes, and snippets.
FFmpeg: Encoding
https://ffmpeg.org/doxygen/1.0/group__lavc__encoding.html
Encode an audio frame from samples into buf. Deprecated: Use avcodec_encode_audio2 instead. Note: The output buffer should be at least FF_MIN_BUFFER_SIZE bytes large. However, for codecs with avctx->frame_size equal to 0 (e.g. PCM) the user will know how much space is needed because it depends on the value passed in …
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