libavcodec/iff.c File Reference

IFF PBM/ILBM bitmap decoder. More...

#include "bytestream.h"
#include "avcodec.h"
#include "get_bits.h"
#include "iff.h"

Go to the source code of this file.

Data Structures
struct	IffContext
Functions
int	ff_cmap_read_palette (AVCodecContext *avctx, uint32_t *pal)
	Convert CMAP buffer (stored in extradata) to lavc palette format.
static av_cold int	decode_init (AVCodecContext *avctx)
static void	decodeplane8 (uint8_t *dst, const uint8_t *const buf, int buf_size, int bps, int plane)
	Decode interleaved plane buffer up to 8bpp.
static void	decodeplane32 (uint32_t *dst, const uint8_t *const buf, int buf_size, int bps, int plane)
	Decode interleaved plane buffer up to 24bpp.
static int	decode_frame_ilbm (AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt)
static int	decode_frame_byterun1 (AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt)
static av_cold int	decode_end (AVCodecContext *avctx)
Variables
AVCodec	iff_ilbm_decoder
AVCodec	iff_byterun1_decoder

---

Detailed Description

IFF PBM/ILBM bitmap decoder.

Definition in file iff.c.

---

Function Documentation

static av_cold int decode_end

(

AVCodecContext *

avctx

)

[static]

Definition at line 257 of file iff.c.

static int decode_frame_byterun1	(	AVCodecContext *	avctx,
		void *	data,
		int *	data_size,
		AVPacket *	avpkt
	)			[static]

Definition at line 168 of file iff.c.

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

Definition at line 128 of file iff.c.

static av_cold int decode_init

(

AVCodecContext *

avctx

)

[static]

Definition at line 62 of file iff.c.

static void decodeplane32	(	uint32_t *	dst,
		const uint8_t *const	buf,
		int	buf_size,
		int	bps,
		int	plane
	)			[static]

Decode interleaved plane buffer up to 24bpp.

Parameters:

	dst	Destination buffer
	buf	Source buffer
	buf_size
	bps	bits_per_coded_sample
	plane	plane number to decode as

Definition at line 117 of file iff.c.

Referenced by decode_frame_byterun1(), and decode_frame_ilbm().

static void decodeplane8	(	uint8_t *	dst,
		const uint8_t *const	buf,
		int	buf_size,
		int	bps,
		int	plane
	)			[static]

Decode interleaved plane buffer up to 8bpp.

Parameters:

	dst	Destination buffer
	buf	Source buffer
	buf_size
	bps	bits_per_coded_sample (must be <= 8)
	plane	plane number to decode as

Definition at line 98 of file iff.c.

Referenced by decode_frame_byterun1(), and decode_frame_ilbm().

int ff_cmap_read_palette	(	AVCodecContext *	avctx,
		uint32_t *	pal
	)

Convert CMAP buffer (stored in extradata) to lavc palette format.

Definition at line 42 of file iff.c.

Referenced by decode_init(), and iff_read_packet().

---

Variable Documentation

AVCodec iff_byterun1_decoder

Initial value:

 {
    "iff_byterun1",
    AVMEDIA_TYPE_VIDEO,
    CODEC_ID_IFF_BYTERUN1,
    sizeof(IffContext),
    decode_init,
    NULL,
    decode_end,
    decode_frame_byterun1,
    CODEC_CAP_DR1,
    .long_name = NULL_IF_CONFIG_SMALL("IFF ByteRun1"),
}

Definition at line 279 of file iff.c.

AVCodec iff_ilbm_decoder

Initial value:

 {
    "iff_ilbm",
    AVMEDIA_TYPE_VIDEO,
    CODEC_ID_IFF_ILBM,
    sizeof(IffContext),
    decode_init,
    NULL,
    decode_end,
    decode_frame_ilbm,
    CODEC_CAP_DR1,
    .long_name = NULL_IF_CONFIG_SMALL("IFF ILBM"),
}

Definition at line 266 of file iff.c.