FFmpeg
Data Structures | Macros | Functions | Variables
motionpixels.c File Reference
#include "libavutil/thread.h"
#include "config.h"
#include "avcodec.h"
#include "get_bits.h"
#include "bswapdsp.h"
#include "internal.h"
#include "motionpixels_tablegen.h"

Go to the source code of this file.

Data Structures

struct  HuffCode
 
struct  MotionPixelsContext
 

Macros

#define MAX_HUFF_CODES   16
 

Functions

static av_cold int mp_decode_end (AVCodecContext *avctx)
 
static av_cold int mp_decode_init (AVCodecContext *avctx)
 
static void mp_read_changes_map (MotionPixelsContext *mp, GetBitContext *gb, int count, int bits_len, int read_color)
 
static int mp_get_code (MotionPixelsContext *mp, GetBitContext *gb, int size)
 
static int mp_read_codes_table (MotionPixelsContext *mp, GetBitContext *gb)
 
static av_always_inline int mp_gradient (MotionPixelsContext *mp, int component, int v)
 
static YuvPixel mp_get_yuv_from_rgb (MotionPixelsContext *mp, int x, int y)
 
static void mp_set_rgb_from_yuv (MotionPixelsContext *mp, int x, int y, const YuvPixel *p)
 
static av_always_inline int mp_get_vlc (MotionPixelsContext *mp, GetBitContext *gb)
 
static void mp_decode_line (MotionPixelsContext *mp, GetBitContext *gb, int y)
 
static void mp_decode_frame_helper (MotionPixelsContext *mp, GetBitContext *gb)
 
static int mp_decode_frame (AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
 

Variables

const AVCodec ff_motionpixels_decoder
 

Macro Definition Documentation

◆ MAX_HUFF_CODES

#define MAX_HUFF_CODES   16

Definition at line 31 of file motionpixels.c.

Function Documentation

◆ mp_decode_end()

static av_cold int mp_decode_end ( AVCodecContext avctx)
static

Definition at line 56 of file motionpixels.c.

◆ mp_decode_init()

static av_cold int mp_decode_init ( AVCodecContext avctx)
static

Definition at line 69 of file motionpixels.c.

◆ mp_read_changes_map()

static void mp_read_changes_map ( MotionPixelsContext mp,
GetBitContext gb,
int  count,
int  bits_len,
int  read_color 
)
static

Definition at line 102 of file motionpixels.c.

Referenced by mp_decode_frame().

◆ mp_get_code()

static int mp_get_code ( MotionPixelsContext mp,
GetBitContext gb,
int  size 
)
static

Definition at line 131 of file motionpixels.c.

Referenced by mp_read_codes_table().

◆ mp_read_codes_table()

static int mp_read_codes_table ( MotionPixelsContext mp,
GetBitContext gb 
)
static

Definition at line 151 of file motionpixels.c.

Referenced by mp_decode_frame().

◆ mp_gradient()

static av_always_inline int mp_gradient ( MotionPixelsContext mp,
int  component,
int  v 
)
static

Definition at line 173 of file motionpixels.c.

Referenced by mp_decode_frame_helper(), and mp_decode_line().

◆ mp_get_yuv_from_rgb()

static YuvPixel mp_get_yuv_from_rgb ( MotionPixelsContext mp,
int  x,
int  y 
)
static

Definition at line 182 of file motionpixels.c.

Referenced by mp_decode_frame_helper(), and mp_decode_line().

◆ mp_set_rgb_from_yuv()

static void mp_set_rgb_from_yuv ( MotionPixelsContext mp,
int  x,
int  y,
const YuvPixel p 
)
static

Definition at line 190 of file motionpixels.c.

Referenced by mp_decode_frame_helper(), and mp_decode_line().

◆ mp_get_vlc()

static av_always_inline int mp_get_vlc ( MotionPixelsContext mp,
GetBitContext gb 
)
static

Definition at line 198 of file motionpixels.c.

Referenced by mp_decode_frame_helper(), and mp_decode_line().

◆ mp_decode_line()

static void mp_decode_line ( MotionPixelsContext mp,
GetBitContext gb,
int  y 
)
static

Definition at line 204 of file motionpixels.c.

Referenced by mp_decode_frame_helper().

◆ mp_decode_frame_helper()

static void mp_decode_frame_helper ( MotionPixelsContext mp,
GetBitContext gb 
)
static

Definition at line 251 of file motionpixels.c.

Referenced by mp_decode_frame().

◆ mp_decode_frame()

static int mp_decode_frame ( AVCodecContext avctx,
void *  data,
int got_frame,
AVPacket avpkt 
)
static

Definition at line 280 of file motionpixels.c.

Variable Documentation

◆ ff_motionpixels_decoder

const AVCodec ff_motionpixels_decoder
Initial value:
= {
.name = "motionpixels",
.long_name = NULL_IF_CONFIG_SMALL("Motion Pixels video"),
.priv_data_size = sizeof(MotionPixelsContext),
.close = mp_decode_end,
.capabilities = AV_CODEC_CAP_DR1,
}

Definition at line 348 of file motionpixels.c.

FF_CODEC_CAP_INIT_THREADSAFE
#define FF_CODEC_CAP_INIT_THREADSAFE
The codec does not modify any global variables in the init function, allowing to call the init functi...
Definition: internal.h:41
init
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:31
mp_decode_frame
static int mp_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
Definition: motionpixels.c:280
mp_decode_init
static av_cold int mp_decode_init(AVCodecContext *avctx)
Definition: motionpixels.c:69
decode
static void decode(AVCodecContext *dec_ctx, AVPacket *pkt, AVFrame *frame, FILE *outfile)
Definition: decode_audio.c:71
AV_CODEC_ID_MOTIONPIXELS
@ AV_CODEC_ID_MOTIONPIXELS
Definition: codec_id.h:168
MotionPixelsContext
Definition: motionpixels.c:40
AV_CODEC_CAP_DR1
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() or get_encode_buffer() for allocating buffers and supports custom allocators.
Definition: codec.h:52
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:117
FF_CODEC_CAP_INIT_CLEANUP
#define FF_CODEC_CAP_INIT_CLEANUP
The codec allows calling the close function for deallocation even if the init function returned a fai...
Definition: internal.h:49
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
mp_decode_end
static av_cold int mp_decode_end(AVCodecContext *avctx)
Definition: motionpixels.c:56