libavutil/fifo.h

   1 #ifndef FIFO_H
   2 #define FIFO_H
   3
   4 typedef struct AVFifoBuffer {
   5     uint8_t *buffer;
   6     uint8_t *rptr, *wptr, *end;
   7 } AVFifoBuffer;
   8
   9 int av_fifo_init(AVFifoBuffer *f, int size);
  10 void av_fifo_free(AVFifoBuffer *f);
  11 int av_fifo_size(AVFifoBuffer *f);
  12 int av_fifo_read(AVFifoBuffer *f, uint8_t *buf, int buf_size);
  13 int av_fifo_generic_read(AVFifoBuffer *f, int buf_size, void (*func)(void*, void*, int), void* dest);
  14 void av_fifo_write(AVFifoBuffer *f, const uint8_t *buf, int size);
  15 void av_fifo_realloc(AVFifoBuffer *f, unsigned int size);
  16 void av_fifo_drain(AVFifoBuffer *f, int size);
  17
  18 static inline uint8_t av_fifo_peek(AVFifoBuffer *f, int offs)
  19 {
  20     uint8_t *ptr = f->rptr + offs;
  21     if (ptr >= f->end)
  22         ptr -= f->end - f->buffer;
  23     return *ptr;
  24 }
  25 #endif /* FIFO_H */