Libav
Functions | Variables
mjpegenc.c File Reference

MJPEG encoder. More...

#include <assert.h>
#include "libavutil/pixdesc.h"
#include "avcodec.h"
#include "mpegvideo.h"
#include "mjpeg.h"
#include "mjpegenc.h"

Go to the source code of this file.

Functions

av_cold int ff_mjpeg_encode_init (MpegEncContext *s)
 
void ff_mjpeg_encode_close (MpegEncContext *s)
 
static int put_huffman_table (PutBitContext *p, int table_class, int table_id, const uint8_t *bits_table, const uint8_t *value_table)
 
static void jpeg_table_header (PutBitContext *p, ScanTable *intra_scantable, uint16_t intra_matrix[64])
 
static void jpeg_put_comments (AVCodecContext *avctx, PutBitContext *p)
 
void ff_mjpeg_encode_picture_header (AVCodecContext *avctx, PutBitContext *pb, ScanTable *intra_scantable, uint16_t intra_matrix[64])
 
static void escape_FF (PutBitContext *pb, int start)
 
void ff_mjpeg_encode_stuffing (PutBitContext *pbc)
 
void ff_mjpeg_encode_picture_trailer (PutBitContext *pb, int header_bits)
 
void ff_mjpeg_encode_dc (PutBitContext *pb, int val, uint8_t *huff_size, uint16_t *huff_code)
 
static void encode_block (MpegEncContext *s, int16_t *block, int n)
 
void ff_mjpeg_encode_mb (MpegEncContext *s, int16_t block[6][64])
 

Variables

AVCodec ff_mjpeg_encoder
 

Detailed Description

MJPEG encoder.

Definition in file mjpegenc.c.

Function Documentation

av_cold int ff_mjpeg_encode_init ( MpegEncContext s)

Definition at line 42 of file mjpegenc.c.

Referenced by ff_MPV_encode_init().

void ff_mjpeg_encode_close ( MpegEncContext s)

Definition at line 75 of file mjpegenc.c.

Referenced by ff_MPV_encode_end().

static int put_huffman_table ( PutBitContext p,
int  table_class,
int  table_id,
const uint8_t bits_table,
const uint8_t value_table 
)
static

Definition at line 81 of file mjpegenc.c.

Referenced by jpeg_table_header().

static void jpeg_table_header ( PutBitContext p,
ScanTable intra_scantable,
uint16_t  intra_matrix[64] 
)
static

Definition at line 101 of file mjpegenc.c.

Referenced by ff_mjpeg_encode_picture_header().

static void jpeg_put_comments ( AVCodecContext avctx,
PutBitContext p 
)
static

Definition at line 135 of file mjpegenc.c.

Referenced by ff_mjpeg_encode_picture_header().

void ff_mjpeg_encode_picture_header ( AVCodecContext avctx,
PutBitContext pb,
ScanTable intra_scantable,
uint16_t  intra_matrix[64] 
)

Definition at line 180 of file mjpegenc.c.

Referenced by encode_picture(), and ljpeg_encode_frame().

static void escape_FF ( PutBitContext pb,
int  start 
)
static

Definition at line 275 of file mjpegenc.c.

Referenced by ff_mjpeg_encode_picture_trailer().

void ff_mjpeg_encode_stuffing ( PutBitContext pbc)

Definition at line 327 of file mjpegenc.c.

Referenced by ff_mjpeg_encode_picture_trailer(), and write_slice_end().

void ff_mjpeg_encode_picture_trailer ( PutBitContext pb,
int  header_bits 
)

Definition at line 334 of file mjpegenc.c.

Referenced by ff_MPV_encode_picture(), and ljpeg_encode_frame().

void ff_mjpeg_encode_dc ( PutBitContext pb,
int  val,
uint8_t huff_size,
uint16_t *  huff_code 
)

Definition at line 346 of file mjpegenc.c.

Referenced by encode_block(), ljpeg_encode_bgr(), and ljpeg_encode_yuv_mb().

static void encode_block ( MpegEncContext s,
int16_t *  block,
int  n 
)
static

Definition at line 368 of file mjpegenc.c.

Referenced by ff_mjpeg_encode_mb().

void ff_mjpeg_encode_mb ( MpegEncContext s,
int16_t  block[6][64] 
)

Definition at line 426 of file mjpegenc.c.

Referenced by encode_mb_internal().

Variable Documentation

AVCodec ff_mjpeg_encoder
Initial value:
= {
.name = "mjpeg",
.long_name = NULL_IF_CONFIG_SMALL("MJPEG (Motion JPEG)"),
.priv_data_size = sizeof(MpegEncContext),
.pix_fmts = (const enum AVPixelFormat[]){
},
}
int ff_MPV_encode_end(AVCodecContext *avctx)
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of PIX_FMT_YUV422P and setting color_...
Definition: pixfmt.h:78
int ff_MPV_encode_init(AVCodecContext *avctx)
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:142
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of PIX_FMT_YUV420P and setting color_...
Definition: pixfmt.h:77
static void close(AVCodecParserContext *s)
Definition: h264_parser.c:489
int ff_MPV_encode_picture(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *frame, int *got_packet)
MpegEncContext.
Definition: mpegvideo.h:264
static av_cold int init(AVCodecParserContext *s)
Definition: h264_parser.c:498
AVPixelFormat
Pixel format.
Definition: pixfmt.h:63

Definition at line 443 of file mjpegenc.c.