Global av_asrc_buffer_add_buffer (AVFilterContext *abuffersrc, uint8_t *buf, int buf_size, int sample_rate, int sample_fmt, int64_t ch_layout, int planar, int64_t pts, int av_unused flags)
Global av_asrc_buffer_add_samples (AVFilterContext *abuffersrc, uint8_t *data[8], int linesize[8], int nb_samples, int sample_rate, int sample_fmt, int64_t ch_layout, int planar, int64_t pts, int av_unused flags)
Global av_audio_convert (AVAudioConvert *ctx, void *const out[6], const int out_stride[6], const void *const in[6], const int in_stride[6], int len)
See libswresample
Global av_audio_convert_alloc (enum AVSampleFormat out_fmt, int out_channels, enum AVSampleFormat in_fmt, int in_channels, const float *matrix, int flags)
Global avcodec_find_best_pix_fmt_of_2 (enum AVPixelFormat dst_pix_fmt1, enum AVPixelFormat dst_pix_fmt2, enum AVPixelFormat src_pix_fmt, int has_alpha, int *loss_ptr)
AVDictionary is provided for compatibility with libav. It is both in implementation as well as API inefficient. It does not scale and is extremely slow with large dictionaries. It is recommended that new code uses our tree container from tree.c/h where applicable, which uses AVL trees to achieve O(log n) performance.