QT RPZA Video Decoder by Roberto Togni For more information about the RPZA format, visit: http://www.pcisys.net/~melanson/codecs/. More...

#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "libavutil/internal.h"
#include "avcodec.h"
#include "bytestream.h"
#include "internal.h"

Classes
struct	RpzaContext

Macros
#define	CHECK_BLOCK()

#define	ADVANCE_BLOCK()

Typedefs
typedef struct RpzaContext	RpzaContext

Variables
AVCodec	ff_rpza_decoder

Detailed Description

QT RPZA Video Decoder by Roberto Togni For more information about the RPZA format, visit: http://www.pcisys.net/~melanson/codecs/.

The RPZA decoder outputs RGB555 colorspace data.

Note that this decoder reads big endian RGB555 pixel values from the bytestream, arranges them in the host's endian order, and outputs them to the final rendered map in the same host endian order. This is intended behavior as the libavcodec documentation states that RGB555 pixels shall be stored in native CPU endianness.

Macro Definition Documentation

§ ADVANCE_BLOCK

#define ADVANCE_BLOCK ( )

Value:

{                               \
        pixel_ptr += 4;             \
        if (pixel_ptr >= width)     \
        {                           \
            pixel_ptr = 0;          \
            row_ptr  += stride * 4; \
        }                           \
        total_blocks--;             \
    }

§ CHECK_BLOCK

#define CHECK_BLOCK ( )

Value:

if (total_blocks < 1) {                                                    \
        av_log(s->avctx, AV_LOG_ERROR,                                         \
               "Block counter just went negative (this should not happen)\n"); \
        return AVERROR_INVALIDDATA;                                            \
    }                                                                          \

Variable Documentation

§ ff_rpza_decoder

AVCodec ff_rpza_decoder

Initial value:

= {
    .name           = "rpza",
    .long_name      = NULL_IF_CONFIG_SMALL("QuickTime video (RPZA)"),
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_RPZA,
    .priv_data_size = sizeof(RpzaContext),
    .init           = rpza_decode_init,
    .close          = rpza_decode_end,
    .decode         = rpza_decode_frame,
    .capabilities   = AV_CODEC_CAP_DR1,
}

Classes

Macros