mjpegdec.c File Reference

---

Detailed Description

MJPEG decoder.

Definition in file mjpegdec.c.

Go to the source code of this file.

Functions
static int	build_vlc (VLC *vlc, const uint8_t *bits_table, const uint8_t *val_table, int nb_codes, int use_static, int is_ac)
static void	build_basic_mjpeg_vlc (MJpegDecodeContext *s)
int	ff_mjpeg_decode_init (AVCodecContext *avctx)
int	ff_mjpeg_decode_dqt (MJpegDecodeContext *s)
int	ff_mjpeg_decode_dht (MJpegDecodeContext *s)
int	ff_mjpeg_decode_sof (MJpegDecodeContext *s)
static int	mjpeg_decode_dc (MJpegDecodeContext *s, int dc_index)
static int	decode_block (MJpegDecodeContext *s, DCTELEM *block, int component, int dc_index, int ac_index, int16_t *quant_matrix)
static int	decode_block_progressive (MJpegDecodeContext *s, DCTELEM *block, int component, int dc_index, int ac_index, int16_t *quant_matrix, int ss, int se, int Ah, int Al, int *EOBRUN)
static int	ljpeg_decode_rgb_scan (MJpegDecodeContext *s, int predictor, int point_transform)
static int	ljpeg_decode_yuv_scan (MJpegDecodeContext *s, int predictor, int point_transform)
static int	mjpeg_decode_scan (MJpegDecodeContext *s, int nb_components, int ss, int se, int Ah, int Al)
int	ff_mjpeg_decode_sos (MJpegDecodeContext *s)
static int	mjpeg_decode_dri (MJpegDecodeContext *s)
static int	mjpeg_decode_app (MJpegDecodeContext *s)
static int	mjpeg_decode_com (MJpegDecodeContext *s)
Variables
static int	valid_marker_list []
AVCodec	thp_decoder

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Function Documentation

static int build_vlc	(	VLC *	vlc,
		const uint8_t *	bits_table,
		const uint8_t *	val_table,
		int	nb_codes,
		int	use_static,
		int	is_ac
	)			[static]

Definition at line 43 of file mjpegdec.c.

Referenced by build_basic_mjpeg_vlc(), and ff_mjpeg_decode_dht().

static void build_basic_mjpeg_vlc

(

MJpegDecodeContext *

s

)

[static]

Definition at line 65 of file mjpegdec.c.

Referenced by ff_mjpeg_decode_init().

int ff_mjpeg_decode_init

(

AVCodecContext *

avctx

)

Definition at line 76 of file mjpegdec.c.

int ff_mjpeg_decode_dqt

(

MJpegDecodeContext *

s

)

Definition at line 113 of file mjpegdec.c.

Referenced by mjpegb_decode_frame().

int ff_mjpeg_decode_dht

(

MJpegDecodeContext *

s

)

Definition at line 148 of file mjpegdec.c.

Referenced by ff_mjpeg_decode_init(), and mjpegb_decode_frame().

int ff_mjpeg_decode_sof

(

MJpegDecodeContext *

s

)

Definition at line 194 of file mjpegdec.c.

Referenced by mjpegb_decode_frame().

static int mjpeg_decode_dc	(	MJpegDecodeContext *	s,
		int	dc_index
	)			[inline, static]

Definition at line 358 of file mjpegdec.c.

Referenced by decode_block(), decode_block_progressive(), ljpeg_decode_rgb_scan(), and ljpeg_decode_yuv_scan().

static int decode_block	(	MJpegDecodeContext *	s,
		DCTELEM *	block,
		int	component,
		int	dc_index,
		int	ac_index,
		int16_t *	quant_matrix
	)			[static]

Definition at line 376 of file mjpegdec.c.

Referenced by mjpeg_decode_scan(), and ra288_decode_frame().

static int decode_block_progressive	(	MJpegDecodeContext *	s,
		DCTELEM *	block,
		int	component,
		int	dc_index,
		int	ac_index,
		int16_t *	quant_matrix,
		int	ss,
		int	se,
		int	Ah,
		int	Al,
		int *	EOBRUN
	)			[static]

Definition at line 433 of file mjpegdec.c.

Referenced by mjpeg_decode_scan().

static int ljpeg_decode_rgb_scan	(	MJpegDecodeContext *	s,
		int	predictor,
		int	point_transform
	)			[static]

Definition at line 509 of file mjpegdec.c.

Referenced by ff_mjpeg_decode_sos().

static int ljpeg_decode_yuv_scan	(	MJpegDecodeContext *	s,
		int	predictor,
		int	point_transform
	)			[static]

Definition at line 577 of file mjpegdec.c.

Referenced by ff_mjpeg_decode_sos().

static int mjpeg_decode_scan	(	MJpegDecodeContext *	s,
		int	nb_components,
		int	ss,
		int	se,
		int	Ah,
		int	Al
	)			[static]

Definition at line 660 of file mjpegdec.c.

Referenced by ff_mjpeg_decode_sos(), and sp5x_decode_frame().

int ff_mjpeg_decode_sos

(

MJpegDecodeContext *

s

)

Definition at line 738 of file mjpegdec.c.

Referenced by mjpegb_decode_frame().

static int mjpeg_decode_dri

(

MJpegDecodeContext *

s

)

[static]

Definition at line 858 of file mjpegdec.c.

static int mjpeg_decode_app

(

MJpegDecodeContext *

s

)

[static]

Definition at line 869 of file mjpegdec.c.

static int mjpeg_decode_com

(

MJpegDecodeContext *

s

)

[static]

Definition at line 1016 of file mjpegdec.c.

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Variable Documentation

int valid_marker_list[] [static]

Definition at line 1052 of file mjpegdec.c.

AVCodec thp_decoder

Initial value:

 {
    "thp",
    CODEC_TYPE_VIDEO,
    CODEC_ID_THP,
    sizeof(MJpegDecodeContext),
    ff_mjpeg_decode_init,
    NULL,
    ff_mjpeg_decode_end,
    ff_mjpeg_decode_frame,
    CODEC_CAP_DR1,
    NULL
}

Definition at line 1369 of file mjpegdec.c.