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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




static void 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)


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 ADVANCE_BLOCK ( )
{ \
pixel_ptr += 4; \
if (pixel_ptr >= width) \
{ \
pixel_ptr = 0; \
row_ptr += stride * 4; \
} \
total_blocks--; \
if (total_blocks < 0) \
{ \
av_log(s->avctx, AV_LOG_ERROR, "warning: block counter just went negative (this should not happen)\n"); \
} \
const char * s
Definition: avisynth_c.h:631
Definition: avfilter.c:975
#define av_log(a,...)
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
GLint GLenum GLboolean GLsizei stride
Definition: opengl_enc.c:105
static int width

Definition at line 55 of file rpza.c.

Referenced by rpza_decode_stream().

Function Documentation

static void rpza_decode_stream ( RpzaContext s)

Definition at line 71 of file rpza.c.

Referenced by rpza_decode_frame().

static av_cold int rpza_decode_init ( AVCodecContext avctx)

Definition at line 228 of file rpza.c.

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

Definition at line 242 of file rpza.c.

static av_cold int rpza_decode_end ( AVCodecContext avctx)

Definition at line 265 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),
.close = rpza_decode_end,
.capabilities = CODEC_CAP_DR1,
static int rpza_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
Definition: rpza.c:242
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
#define CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
Definition: avcodec.h:789
static av_cold int rpza_decode_end(AVCodecContext *avctx)
Definition: rpza.c:265
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:175
static av_cold int rpza_decode_init(AVCodecContext *avctx)
Definition: rpza.c:228
static int decode(AVCodecContext *avctx, void *data, int *got_sub, AVPacket *avpkt)
Definition: ccaption_dec.c:522

Definition at line 274 of file rpza.c.