Function hb_buffer_init_internal

libhb/fifo.c:358–441

}

hb_buffer_t * hb_buffer_init_internal( int size )
{
    hb_buffer_t * b;
    // Certain libraries (hrm ffmpeg) expect buffers passed to them to
    // end on certain alignments. So allocate some extra bytes.
    // Note that we can't simply align the end of our buffer because
    // sometimes we feed data to these libraries starting from arbitrary
    // points within the buffer.
    int alloc = size ? size + AV_INPUT_BUFFER_PADDING_SIZE : 0;
    hb_fifo_t *buffer_pool = size_to_pool( alloc );

    if( buffer_pool )
    {
        b = hb_fifo_get( buffer_pool );

        if( b )
        {
            /*
             * Zero the contents of the buffer, would be nice if we
             * didn't have to do this.
             */
            uint8_t *data = b->data;

            memset( b, 0, sizeof(hb_buffer_t) );
            b->alloc          = buffer_pool->buffer_size;
            b->size           = size;
            if (size)
            {
                b->data           = data;
            }
            b->storage        = NULL;
            b->s.start        = AV_NOPTS_VALUE;
            b->s.stop         = AV_NOPTS_VALUE;
            b->s.renderOffset = AV_NOPTS_VALUE;
            b->s.scr_sequence = -1;

#if defined(HB_BUFFER_DEBUG)
            hb_lock(buffers.lock);
            hb_list_add(buffers.alloc_list, b);
            hb_unlock(buffers.lock);
#endif
            return( b );
        }
    }

    /*
     * No existing buffers, create a new one
     */
    if( !( b = calloc( sizeof( hb_buffer_t ), 1 ) ) )
    {
        hb_error( "out of memory" );
        return NULL;
    }

    b->size  = size;
    b->alloc  = buffer_pool ? buffer_pool->buffer_size : alloc;

    if (size)