Return a pointer to the data stored in a FIFO buffer at a certain offset.
The FIFO buffer is not modified.
@param f AVFifoBuffer to peek at, f must be non-NULL
@param offs an offset in bytes, its absolute value must be less
than the used buffer size or the returned pointer will
point outside to the buffer data.
The used buffer size can be checked with av_fifo_size().
Return a pointer to the data stored in a FIFO buffer at a certain offset. The FIFO buffer is not modified.
@param f AVFifoBuffer to peek at, f must be non-NULL @param offs an offset in bytes, its absolute value must be less than the used buffer size or the returned pointer will point outside to the buffer data. The used buffer size can be checked with av_fifo_size().