hvirtual/quicktime/ffmpeg/libavcodec/indeo2.c File Reference

#include "avcodec.h"
#include "bitstream.h"
#include "indeo2data.h"

Include dependency graph for indeo2.c:

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Data Structures
struct	Ir2Context
Defines
#define	ALT_BITSTREAM_READER_LE
#define	CODE_VLC_BITS   14
Functions
static int	ir2_get_code (GetBitContext *gb)
static int	ir2_decode_plane (Ir2Context *ctx, int width, int height, uint8_t *dst, int stride, const uint8_t *table)
static int	ir2_decode_plane_inter (Ir2Context *ctx, int width, int height, uint8_t *dst, int stride, const uint8_t *table)
static int	ir2_decode_frame (AVCodecContext *avctx, void *data, int *data_size, uint8_t *buf, int buf_size)
static int	ir2_decode_init (AVCodecContext *avctx)
Variables
static VLC	ir2_vlc
AVCodec	indeo2_decoder

---

Detailed Description

Intel Indeo 2 decoder.

Definition in file indeo2.c.

---

Define Documentation

#define ALT_BITSTREAM_READER_LE

Definition at line 25 of file indeo2.c.

Referenced by ir2_decode_init().

#define CODE_VLC_BITS   14

Definition at line 37 of file indeo2.c.

Referenced by decode_init(), ir2_decode_init(), ir2_get_code(), and wnv1_get_code().

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Function Documentation

static int ir2_decode_frame	(	AVCodecContext *	avctx,
		void *	data,
		int *	data_size,
		uint8_t *	buf,
		int	buf_size
	)			[static]

Definition at line 136 of file indeo2.c.

References av_log(), AV_LOG_ERROR, Ir2Context::avctx, Ir2Context::decode_delta, FF_BUFFER_HINTS_PRESERVE, FF_BUFFER_HINTS_REUSABLE, FF_BUFFER_HINTS_VALID, ff_reverse, Ir2Context::gb, AVCodecContext::height, init_get_bits(), ir2_decode_plane(), ir2_decode_plane_inter(), ir2_luma_table, Ir2Context::picture, picture, AVCodecContext::priv_data, AVCodecContext::reget_buffer, AVCodecContext::release_buffer, s, and AVCodecContext::width.

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static int ir2_decode_init

(

AVCodecContext *

avctx

)

[static]

Definition at line 191 of file indeo2.c.

References ALT_BITSTREAM_READER_LE, Ir2Context::avctx, CODE_VLC_BITS, init_vlc(), INIT_VLC_LE, INIT_VLC_USE_STATIC, ir2_codes, IR2_CODES, AVCodecContext::pix_fmt, PIX_FMT_YUV410P, AVCodecContext::priv_data, and VLC::table.

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static int ir2_decode_plane	(	Ir2Context *	ctx,
		int	width,
		int	height,
		uint8_t *	dst,
		int	stride,
		const uint8_t *	table
	)			[static]

Definition at line 46 of file indeo2.c.

References c, Ir2Context::gb, ir2_get_code(), and t.

Referenced by ir2_decode_frame().

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static int ir2_decode_plane_inter	(	Ir2Context *	ctx,
		int	width,
		int	height,
		uint8_t *	dst,
		int	stride,
		const uint8_t *	table
	)			[static]

Definition at line 102 of file indeo2.c.

References c, Ir2Context::gb, ir2_get_code(), and t.

Referenced by ir2_decode_frame().

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static int ir2_get_code

(

GetBitContext *

gb

)

[inline, static]

Definition at line 41 of file indeo2.c.

References CODE_VLC_BITS, get_vlc2(), and VLC::table.

Referenced by ir2_decode_plane(), and ir2_decode_plane_inter().

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Variable Documentation

AVCodec indeo2_decoder

Initial value:

 {
    "indeo2",
    CODEC_TYPE_VIDEO,
    CODEC_ID_INDEO2,
    sizeof(Ir2Context),
    ir2_decode_init,
    NULL,
    NULL,
    ir2_decode_frame,
    CODEC_CAP_DR1,
}

Definition at line 210 of file indeo2.c.

Referenced by avcodec_register_all().

VLC ir2_vlc [static]

Definition at line 38 of file indeo2.c.