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C++ (Cpp) avcodec_decode_audio4 Examples - HotExamples
https://cpp.hotexamples.com/examples/-/-/avcodec_decode_audio4/cpp-avcodec_decode_audio4-function-examples.html
int audio_decode_frame(VideoState *is, double *pts_ptr) { int len1, data_size = 0, n; AVPacket *pkt = &is->audio_pkt; double pts; for(;;) { while(is->audio_pkt_size > 0) { int got_frame = 0; len1 = avcodec_decode_audio4(is->audio_st->codec, &is->audio_frame, &got_frame, pkt); if(len1 < 0) { /* if error, skip frame */ is->audio_pkt_size = 0; break; } if (got_frame) { data_size = …
avcodec_decode_audio4 (ffmpeg.libavcodec.avcodec.avcodec ...
https://ffmpeg4d.dpldocs.info/ffmpeg.libavcodec.avcodec.avcodec_decode_audio4.html
avcodec_decode_audio4. ffmpeg libavcodec avcodec. Decode the audio frame of size avpkt->size from avpkt->data into frame. Some decoders may support multiple frames in a single AVPacket. Such decoders would then just decode the first frame and the return value would be less than the packet size. In this case, avcodec_decode_audio4 has to be called again with …
android - avcodec_decode_audio3 of FFmpeg return -1 ...
https://stackoverflow.com/questions/10188631/avcodec-decode-audio3-of-ffmpeg-return-1
I use FFmpeg on android to decode mp3. I set all decoder enable on configure and make the .so file correctly. Here's the .sh which add parameter for configure file: I can read file and get info (decode type\ format type), then I follow the FFmpeg's sample to call avcodec_decode_audio3 to decode audio file, it return -1, decoding failed.
ffmpeg:avcodec_decode_audio2 [Aasimon.org Wiki]
http://wiki.aasimon.org/doku.php?id=ffmpeg:avcodec_decode_audio2
/** * Decodes an audio frame from \p buf into \p samples. * The avcodec_decode_audio2() function decodes an audio frame from the input * buffer \p buf of size \p buf_size. To decode it, it makes use of the * audio codec which was coupled with \p avctx using avcodec_open(). The * resulting decoded frame is stored in output buffer \p samples.
avcodec_decode_audio4 is deprecated · Issue #32 · …
https://github.com/pesintta/vdr-plugin-vaapidevice/issues/32
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audio decoding error using libavcodec avcodec_decode ...
https://stackoverflow.com/questions/27352025/audio-decoding-error-using-libavcodec-avcodec-decode-audio4
So you need av_read_frame in the loop. Let me explain how decoding works: you open formatcontext, codeccontext and decoder. that is the easy part. in a loop you read packets form one stream. so you need. while (av_read_frame (sound, &avpkt)) in this loop you want to decode the data from the packet. but care, you need to check from which stream ...
Libavcodec tutorial: decode virtually any audio file in C ...
https://rodic.fr/blog/libavcodec-tutorial-decode-audio-file/
The function decode_audio_file takes 4 parameters: path: the path of the file to decode; sample_rate: the desired sample rate for the output data; data: a pointer to a pointer to double precision values, where the extracted data will be stored; size: a pointer to the length of the final extracted values array (number of samples)
Function List - dranger.com
http://dranger.com/ffmpeg/functions.html
The avcodec_decode_audio4 () function decodes a frame of audio from the AVPacket. To decode it, it makes use of the audiocodec which was coupled with avctx using avcodec_open2 (). The resulting decoded frame is stored in the given AVFrame. If a frame has been decompressed, it will set got_frame_ptr to 1.
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