libavcodec/anm.c File Reference

Deluxe Paint Animation decoder. More...

#include "avcodec.h"
#include "bytestream.h"

Go to the source code of this file.

Data Structures
struct	AnmContext
Defines
#define	OP(gb, pixel, count)   op(&dst, dst_end, (gb), (pixel), (count), &s->x, avctx->width, s->frame.linesize[0])
Functions
static av_cold int	decode_init (AVCodecContext *avctx)
static int	op (uint8_t **dst, const uint8_t *dst_end, GetByteContext *gb, int pixel, int count, int *x, int width, int linesize)
	Perform decode operation.
static int	decode_frame (AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt)
static av_cold int	decode_end (AVCodecContext *avctx)
Variables
AVCodec	ff_anm_decoder

---

Detailed Description

Deluxe Paint Animation decoder.

Definition in file anm.c.

---

Define Documentation

#define OP	(	gb,
		pixel,
		count		)	op(&dst, dst_end, (gb), (pixel), (count), &s->x, avctx->width, s->frame.linesize[0])

---

Function Documentation

static av_cold int decode_end

(

AVCodecContext *

avctx

)

[static]

Definition at line 179 of file anm.c.

static int decode_frame	(	AVCodecContext *	avctx,
		void *	data,
		int *	data_size,
		AVPacket *	avpkt
	)			[static]

Definition at line 108 of file anm.c.

static av_cold int decode_init

(

AVCodecContext *

avctx

)

[static]

Definition at line 37 of file anm.c.

static int op	(	uint8_t **	dst,
		const uint8_t *	dst_end,
		GetByteContext *	gb,
		int	pixel,
		int	count,
		int *	x,
		int	width,
		int	linesize
	)			[inline, static]

Perform decode operation.

Parameters:

	dst	pointer to destination image buffer
	dst_end	pointer to end of destination image buffer
	gb	GetByteContext (optional, see below)
	pixel	Fill color (optional, see below)
	count	Pixel count
	x	Pointer to x-axis counter
	width	Image width
	linesize	Destination image buffer linesize

Returns:

non-zero if destination buffer is exhausted

a copy operation is achieved when 'gb' is set a fill operation is achieved when 'gb' is null and pixel is >= 0 a skip operation is achieved when 'gb' is null and pixel is < 0

Definition at line 73 of file anm.c.

Referenced by cdxl_decode_ham6(), cdxl_decode_ham8(), core_yuv420_rgb(), mxf_read_partition_pack(), oggvorbis_decode_frame(), oggvorbis_encode_frame(), and seqvideo_decode().

---

Variable Documentation

AVCodec ff_anm_decoder

Initial value:

 {
    .name           = "anm",
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_ANM,
    .priv_data_size = sizeof(AnmContext),
    .init           = decode_init,
    .close          = decode_end,
    .decode         = decode_frame,
    .capabilities   = CODEC_CAP_DR1,
    .long_name      = NULL_IF_CONFIG_SMALL("Deluxe Paint Animation"),
}

Definition at line 187 of file anm.c.