libavcodec/mss1.c File Reference

Microsoft Screen 1 (aka Windows Media Video V7 Screen) decoder. More...

#include "avcodec.h"
#include "mss12.h"

Go to the source code of this file.

Data Structures
struct	MSS1Context
Functions
static void	arith_normalise (ArithCoder *c)
static int	arith_get_bits (ArithCoder *c, int bits)
static int	arith_get_number (ArithCoder *c, int mod_val)
static int	arith_get_prob (ArithCoder *c, int16_t *probs)
static void	arith_init (ArithCoder *c, GetBitContext *gb)
static int	decode_pal (MSS12Context *ctx, ArithCoder *acoder)
static int	mss1_decode_frame (AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt)
static av_cold int	mss1_decode_init (AVCodecContext *avctx)
static av_cold int	mss1_decode_end (AVCodecContext *avctx)
Variables
AVCodec	ff_mss1_decoder

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Detailed Description

Microsoft Screen 1 (aka Windows Media Video V7 Screen) decoder.

Definition in file mss1.c.

---

Function Documentation

static int arith_get_bits	(	ArithCoder *	c,
		int	bits
	)			[static]

Definition at line 64 of file mss1.c.

Referenced by decode_pal().

static int arith_get_number	(	ArithCoder *	c,
		int	mod_val
	)			[static]

Definition at line 78 of file mss1.c.

Referenced by arith_init(), and decode_pal().

static int arith_get_prob	(	ArithCoder *	c,
		int16_t *	probs
	)			[static]

Definition at line 92 of file mss1.c.

static void arith_init	(	ArithCoder *	c,
		GetBitContext *	gb
	)			[static]

Definition at line 109 of file mss1.c.

Referenced by mss1_decode_frame().

static void arith_normalise

(

ArithCoder *

c

)

[static]

Definition at line 36 of file mss1.c.

Referenced by arith_get_bits(), and arith_get_number().

static int decode_pal	(	MSS12Context *	ctx,
		ArithCoder *	acoder
	)			[static]

Definition at line 119 of file mss1.c.

Referenced by mss1_decode_frame().

static av_cold int mss1_decode_end

(

AVCodecContext *

avctx

)

[static]

Definition at line 205 of file mss1.c.

static int mss1_decode_frame	(	AVCodecContext *	avctx,
		void *	data,
		int *	data_size,
		AVPacket *	avpkt
	)			[static]

Definition at line 138 of file mss1.c.

static av_cold int mss1_decode_init

(

AVCodecContext *

avctx

)

[static]

Definition at line 190 of file mss1.c.

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Variable Documentation

AVCodec ff_mss1_decoder

Initial value:

 {
    .name           = "mss1",
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_MSS1,
    .priv_data_size = sizeof(MSS1Context),
    .init           = mss1_decode_init,
    .close          = mss1_decode_end,
    .decode         = mss1_decode_frame,
    .capabilities   = CODEC_CAP_DR1,
    .long_name      = NULL_IF_CONFIG_SMALL("MS Screen 1"),
}

Definition at line 216 of file mss1.c.