AVCodec* audio_decoder = avcodec_find_decoder(input_format_ctx->streams[audio_stream_index]->codecpar->codec_id); audio_decode_ctx = avcodec_alloc_context3(audio_decoder); avcodec_parameters_to_context(audio_decode_ctx, input_format_ctx->streams[audio_stream_index]->codecpar); ret = avcodec...
The data layout as used in av_samples_fill_arrays() and elsewhere in FFmpeg (such as AVFrame in libavcodec) is as follows: For planar sample formats, each audio channel is in a separate data plane, and linesize is the buffer size, in bytes, for a single plane. All data planes must ...
compilegcc -o encode_audio encode_audio.c -I/usr/include/x86_64-linux-gnu/libavcodec -lavformat -lavcodec -lavutil -lm check that is works with the MP2 encoder -> OK change the encoder tocodec = avcodec_find_encoder(AV_CODEC_ID_ADPCM_G722); ...
2 stereo */Uint8 silence;/**< Audio buffer silence value (calculated) */Uint16 samples;/**< Audio buffer size in samples (power of 2) */Uint16 padding;/**< Necessary for some compile environments
-vol volume change audio volume (256=normal) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 所有信息命令:ffmpeg -h full magicyuv AVOptions: -pred<int>E..V... Prediction method (from 1 to 3) (default left) left
AVCodecContextpAudio_codec_context; intvideo_stream_index; intaudio_stream_index; }; 构造函数需要一个参数,指出该类中包含的信息为视频、音频或者音视频都包含; open方法,根据传入的多媒体文件填充各个字段信息;close方法,关闭打开的AVFormatContext和AVCodecContext等。
I'm using python soundfile to audio files in one of my projects. I have a dataset that contains opus files. python soundfile can not read opus files directly but can read ogg files. (https://github.com/bastibe/python-soundfile/issues/252) How can I convert all the opus files to o...
Step 2: Change Environment Variables Find Control Panel on your computer. Then selectSystemChoose Advanced tab in the System Properities interface. Click Environment Variables at the bottom. Then click Edit to paste the file path where FFmpeg is saved. Now, FFmpeg is available to use. Just hit...
P.S. Currently my cam is streaming in libx264 for video and G.711 for audio, but I can easily change it to stream in libx265 for video and G.726 for audio should that be of any help to play both video + audio. These are the only two options available in my camera and I canno...
AVCodecContext *pAudio_codec_context;intvideo_stream_index;intaudio_stream_index; }; 构造函数需要一个参数,指出该类中包含的信息为视频、音频或者音视频都包含; open方法,根据传入的多媒体文件填充各个字段信息;close方法,关闭打开的AVFormatContext和AVCodecContext等。