Libav
Data Structures | Macros | Functions | Variables
rpza.c File Reference

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"

Go to the source code of this file.

Data Structures

struct  RpzaContext
 

Macros

#define CHECK_BLOCK()
 
#define ADVANCE_BLOCK()
 

Functions

static int rpza_decode_stream (RpzaContext *s)
 
static av_cold int rpza_decode_init (AVCodecContext *avctx)
 
static int rpza_decode_frame (AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
 
static av_cold int rpza_decode_end (AVCodecContext *avctx)
 

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.

Definition in file rpza.c.

Macro Definition Documentation

#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"); \
} \
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:54
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:123
void av_log(void *avcl, int level, const char *fmt,...)
Definition: log.c:169
return

Definition at line 55 of file rpza.c.

Referenced by rpza_decode_stream().

#define ADVANCE_BLOCK ( )
Value:
{ \
pixel_ptr += 4; \
if (pixel_ptr >= width) \
{ \
pixel_ptr = 0; \
row_ptr += stride * 4; \
} \
total_blocks--; \
}
int stride
Definition: mace.c:144
if(ac->has_optimized_func)
static int width
Definition: utils.c:156

Definition at line 62 of file rpza.c.

Referenced by rpza_decode_stream().

Function Documentation

static int rpza_decode_stream ( RpzaContext s)
static

Definition at line 73 of file rpza.c.

Referenced by rpza_decode_frame().

static av_cold int rpza_decode_init ( AVCodecContext avctx)
static

Definition at line 232 of file rpza.c.

static int rpza_decode_frame ( AVCodecContext avctx,
void data,
int *  got_frame,
AVPacket avpkt 
)
static

Definition at line 246 of file rpza.c.

static av_cold int rpza_decode_end ( AVCodecContext avctx)
static

Definition at line 273 of file rpza.c.

Variable Documentation

AVCodec ff_rpza_decoder
Initial value:
= {
.name = "rpza",
.long_name = NULL_IF_CONFIG_SMALL("QuickTime video (RPZA)"),
.priv_data_size = sizeof(RpzaContext),
.capabilities = CODEC_CAP_DR1,
}
static int rpza_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
Definition: rpza.c:246
static int decode(MimicContext *ctx, int quality, int num_coeffs, int is_iframe)
Definition: mimic.c:275
#define CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
Definition: avcodec.h:684
static av_cold int rpza_decode_end(AVCodecContext *avctx)
Definition: rpza.c:273
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:145
static av_cold int rpza_decode_init(AVCodecContext *avctx)
Definition: rpza.c:232
static void close(AVCodecParserContext *s)
Definition: h264_parser.c:490
static av_cold int init(AVCodecParserContext *s)
Definition: h264_parser.c:499

Definition at line 282 of file rpza.c.