Libav 0.7.1
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The simplest mpeg encoder (well, it was the simplest!). More...
#include "libavutil/intmath.h"
#include "avcodec.h"
#include "dsputil.h"
#include "mpegvideo.h"
#include "mpegvideo_common.h"
#include "h263.h"
#include "mjpegenc.h"
#include "msmpeg4.h"
#include "faandct.h"
#include "thread.h"
#include "aandcttab.h"
#include "flv.h"
#include "mpeg4video.h"
#include "internal.h"
#include <limits.h>
Go to the source code of this file.
Defines | |
#define | COPY(a) dst->a= src->a |
#define | MERGE(field) dst->field += src->field; src->field=0 |
Functions | |
static int | encode_picture (MpegEncContext *s, int picture_number) |
static int | dct_quantize_refine (MpegEncContext *s, DCTELEM *block, int16_t *weight, DCTELEM *orig, int n, int qscale) |
static int | sse_mb (MpegEncContext *s) |
static void | denoise_dct_c (MpegEncContext *s, DCTELEM *block) |
static int | dct_quantize_trellis_c (MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow) |
void | ff_convert_matrix (DSPContext *dsp, int(*qmat)[64], uint16_t(*qmat16)[2][64], const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra) |
static void | update_qscale (MpegEncContext *s) |
void | ff_write_quant_matrix (PutBitContext *pb, uint16_t *matrix) |
void | ff_init_qscale_tab (MpegEncContext *s) |
init s->current_picture.qscale_table from s->lambda_table | |
static void | copy_picture_attributes (MpegEncContext *s, AVFrame *dst, AVFrame *src) |
static void | update_duplicate_context_after_me (MpegEncContext *dst, MpegEncContext *src) |
static void | MPV_encode_defaults (MpegEncContext *s) |
sets the given MpegEncContext to defaults for encoding. | |
av_cold int | MPV_encode_init (AVCodecContext *avctx) |
av_cold int | MPV_encode_end (AVCodecContext *avctx) |
static int | get_sae (uint8_t *src, int ref, int stride) |
static int | get_intra_count (MpegEncContext *s, uint8_t *src, uint8_t *ref, int stride) |
static int | load_input_picture (MpegEncContext *s, AVFrame *pic_arg) |
static int | skip_check (MpegEncContext *s, Picture *p, Picture *ref) |
static int | estimate_best_b_count (MpegEncContext *s) |
static int | select_input_picture (MpegEncContext *s) |
int | MPV_encode_picture (AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data) |
static void | dct_single_coeff_elimination (MpegEncContext *s, int n, int threshold) |
static void | clip_coeffs (MpegEncContext *s, DCTELEM *block, int last_index) |
static void | get_visual_weight (int16_t *weight, uint8_t *ptr, int stride) |
static av_always_inline void | encode_mb_internal (MpegEncContext *s, int motion_x, int motion_y, int mb_block_height, int mb_block_count) |
static av_always_inline void | encode_mb (MpegEncContext *s, int motion_x, int motion_y) |
static void | copy_context_before_encode (MpegEncContext *d, MpegEncContext *s, int type) |
static void | copy_context_after_encode (MpegEncContext *d, MpegEncContext *s, int type) |
static void | encode_mb_hq (MpegEncContext *s, MpegEncContext *backup, MpegEncContext *best, int type, PutBitContext pb[2], PutBitContext pb2[2], PutBitContext tex_pb[2], int *dmin, int *next_block, int motion_x, int motion_y) |
static int | sse (MpegEncContext *s, uint8_t *src1, uint8_t *src2, int w, int h, int stride) |
static int | pre_estimate_motion_thread (AVCodecContext *c, void *arg) |
static int | estimate_motion_thread (AVCodecContext *c, void *arg) |
static int | mb_var_thread (AVCodecContext *c, void *arg) |
static void | write_slice_end (MpegEncContext *s) |
static int | encode_thread (AVCodecContext *c, void *arg) |
static void | merge_context_after_me (MpegEncContext *dst, MpegEncContext *src) |
static void | merge_context_after_encode (MpegEncContext *dst, MpegEncContext *src) |
static int | estimate_qp (MpegEncContext *s, int dry_run) |
static void | set_frame_distances (MpegEncContext *s) |
static void | build_basis (uint8_t *perm) |
int | dct_quantize_c (MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow) |
Variables | |
static uint8_t | default_mv_penalty [MAX_FCODE+1][MAX_MV *2+1] |
static uint8_t | default_fcode_tab [MAX_MV *2+1] |
static int16_t | basis [64][64] |
AVCodec | ff_h263_encoder |
AVCodec | ff_h263p_encoder |
AVCodec | ff_msmpeg4v2_encoder |
AVCodec | ff_msmpeg4v3_encoder |
AVCodec | ff_wmv1_encoder |
The simplest mpeg encoder (well, it was the simplest!).
Definition in file mpegvideo_enc.c.
#define COPY | ( | a | ) | dst->a= src->a |
Definition at line 2667 of file mpegvideo_enc.c.
Referenced by merge_context_after_encode(), and merge_context_after_me().
static void build_basis | ( | uint8_t * | perm | ) | [static] |
Definition at line 3300 of file mpegvideo_enc.c.
Referenced by dct_quantize_refine().
static void clip_coeffs | ( | MpegEncContext * | s, |
DCTELEM * | block, | ||
int | last_index | ||
) | [inline, static] |
Definition at line 1434 of file mpegvideo_enc.c.
Referenced by encode_mb_internal().
static void copy_context_after_encode | ( | MpegEncContext * | d, |
MpegEncContext * | s, | ||
int | type | ||
) | [inline, static] |
Definition at line 1815 of file mpegvideo_enc.c.
Referenced by encode_mb_hq(), and encode_thread().
static void copy_context_before_encode | ( | MpegEncContext * | d, |
MpegEncContext * | s, | ||
int | type | ||
) | [inline, static] |
Definition at line 1787 of file mpegvideo_enc.c.
Referenced by encode_mb_hq(), and encode_thread().
static void copy_picture_attributes | ( | MpegEncContext * | s, |
AVFrame * | dst, | ||
AVFrame * | src | ||
) | [static] |
Definition at line 170 of file mpegvideo_enc.c.
Referenced by load_input_picture(), and select_input_picture().
int dct_quantize_c | ( | MpegEncContext * | s, |
DCTELEM * | block, | ||
int | n, | ||
int | qscale, | ||
int * | overflow | ||
) |
Definition at line 3692 of file mpegvideo_enc.c.
Referenced by dnxhd_encode_init(), encode_mb_internal(), and MPV_encode_init().
static int dct_quantize_refine | ( | MpegEncContext * | s, |
DCTELEM * | block, | ||
int16_t * | weight, | ||
DCTELEM * | orig, | ||
int | n, | ||
int | qscale | ||
) | [static] |
Definition at line 3319 of file mpegvideo_enc.c.
Referenced by encode_mb_internal().
static int dct_quantize_trellis_c | ( | MpegEncContext * | s, |
DCTELEM * | block, | ||
int | n, | ||
int | qscale, | ||
int * | overflow | ||
) | [static] |
Definition at line 3001 of file mpegvideo_enc.c.
Referenced by MPV_encode_init().
static void dct_single_coeff_elimination | ( | MpegEncContext * | s, |
int | n, | ||
int | threshold | ||
) | [inline, static] |
Definition at line 1385 of file mpegvideo_enc.c.
Referenced by encode_mb_internal().
static void denoise_dct_c | ( | MpegEncContext * | s, |
DCTELEM * | block | ||
) | [static] |
Definition at line 2977 of file mpegvideo_enc.c.
Referenced by MPV_encode_init().
static av_always_inline void encode_mb | ( | MpegEncContext * | s, |
int | motion_x, | ||
int | motion_y | ||
) | [static] |
Definition at line 1781 of file mpegvideo_enc.c.
Referenced by encode_mb_hq(), and encode_thread().
static void encode_mb_hq | ( | MpegEncContext * | s, |
MpegEncContext * | backup, | ||
MpegEncContext * | best, | ||
int | type, | ||
PutBitContext | pb[2], | ||
PutBitContext | pb2[2], | ||
PutBitContext | tex_pb[2], | ||
int * | dmin, | ||
int * | next_block, | ||
int | motion_x, | ||
int | motion_y | ||
) | [inline, static] |
Definition at line 1854 of file mpegvideo_enc.c.
Referenced by encode_thread().
static av_always_inline void encode_mb_internal | ( | MpegEncContext * | s, |
int | motion_x, | ||
int | motion_y, | ||
int | mb_block_height, | ||
int | mb_block_count | ||
) | [static] |
Definition at line 1488 of file mpegvideo_enc.c.
Referenced by encode_mb().
static int encode_picture | ( | MpegEncContext * | s, |
int | picture_number | ||
) | [static] |
Definition at line 2758 of file mpegvideo_enc.c.
Referenced by MPV_encode_picture().
static int encode_thread | ( | AVCodecContext * | c, |
void * | arg | ||
) | [static] |
Definition at line 2037 of file mpegvideo_enc.c.
Referenced by encode_picture().
static int estimate_best_b_count | ( | MpegEncContext * | s | ) | [static] |
Definition at line 944 of file mpegvideo_enc.c.
Referenced by select_input_picture().
static int estimate_motion_thread | ( | AVCodecContext * | c, |
void * | arg | ||
) | [static] |
Definition at line 1968 of file mpegvideo_enc.c.
Referenced by encode_picture().
static int estimate_qp | ( | MpegEncContext * | s, |
int | dry_run | ||
) | [static] |
Definition at line 2706 of file mpegvideo_enc.c.
Referenced by encode_picture().
void ff_convert_matrix | ( | DSPContext * | dsp, |
int(*) | qmat[64], | ||
uint16_t(*) | qmat16[2][64], | ||
const uint16_t * | quant_matrix, | ||
int | bias, | ||
int | qmin, | ||
int | qmax, | ||
int | intra | ||
) |
Definition at line 63 of file mpegvideo_enc.c.
Referenced by dnxhd_init_qmat(), encode_picture(), and MPV_encode_init().
void ff_init_qscale_tab | ( | MpegEncContext * | s | ) |
init s->current_picture.qscale_table from s->lambda_table
Definition at line 159 of file mpegvideo_enc.c.
Referenced by estimate_qp(), and ff_clean_h263_qscales().
void ff_write_quant_matrix | ( | PutBitContext * | pb, |
uint16_t * | matrix | ||
) |
Definition at line 144 of file mpegvideo_enc.c.
Referenced by mpeg1_encode_sequence_header(), and mpeg4_encode_vol_header().
static int get_intra_count | ( | MpegEncContext * | s, |
uint8_t * | src, | ||
uint8_t * | ref, | ||
int | stride | ||
) | [static] |
Definition at line 780 of file mpegvideo_enc.c.
Referenced by select_input_picture().
static int get_sae | ( | uint8_t * | src, |
int | ref, | ||
int | stride | ||
) | [static] |
Definition at line 767 of file mpegvideo_enc.c.
Referenced by get_intra_count().
static void get_visual_weight | ( | int16_t * | weight, |
uint8_t * | ptr, | ||
int | stride | ||
) | [static] |
Definition at line 1465 of file mpegvideo_enc.c.
Referenced by encode_mb_internal().
static int load_input_picture | ( | MpegEncContext * | s, |
AVFrame * | pic_arg | ||
) | [static] |
Definition at line 801 of file mpegvideo_enc.c.
Referenced by MPV_encode_picture().
static int mb_var_thread | ( | AVCodecContext * | c, |
void * | arg | ||
) | [static] |
Definition at line 1995 of file mpegvideo_enc.c.
Referenced by encode_picture().
static void merge_context_after_encode | ( | MpegEncContext * | dst, |
MpegEncContext * | src | ||
) | [static] |
Definition at line 2674 of file mpegvideo_enc.c.
Referenced by encode_picture().
static void merge_context_after_me | ( | MpegEncContext * | dst, |
MpegEncContext * | src | ||
) | [static] |
Definition at line 2668 of file mpegvideo_enc.c.
Referenced by encode_picture().
static void MPV_encode_defaults | ( | MpegEncContext * | s | ) | [static] |
sets the given MpegEncContext to defaults for encoding.
the changed fields will not depend upon the prior state of the MpegEncContext.
Definition at line 230 of file mpegvideo_enc.c.
Referenced by MPV_encode_init().
av_cold int MPV_encode_end | ( | AVCodecContext * | avctx | ) |
Definition at line 752 of file mpegvideo_enc.c.
av_cold int MPV_encode_init | ( | AVCodecContext * | avctx | ) |
Definition at line 242 of file mpegvideo_enc.c.
Referenced by encode_init(), and wmv2_encode_init().
int MPV_encode_picture | ( | AVCodecContext * | avctx, |
unsigned char * | buf, | ||
int | buf_size, | ||
void * | data | ||
) |
Definition at line 1224 of file mpegvideo_enc.c.
static int pre_estimate_motion_thread | ( | AVCodecContext * | c, |
void * | arg | ||
) | [static] |
Definition at line 1949 of file mpegvideo_enc.c.
Referenced by encode_picture().
static int select_input_picture | ( | MpegEncContext * | s | ) | [static] |
Definition at line 1053 of file mpegvideo_enc.c.
Referenced by MPV_encode_picture().
static void set_frame_distances | ( | MpegEncContext * | s | ) | [static] |
Definition at line 2744 of file mpegvideo_enc.c.
Referenced by encode_picture().
static int skip_check | ( | MpegEncContext * | s, |
Picture * | p, | ||
Picture * | ref | ||
) | [static] |
Definition at line 911 of file mpegvideo_enc.c.
Referenced by select_input_picture().
static int sse | ( | MpegEncContext * | s, |
uint8_t * | src1, | ||
uint8_t * | src2, | ||
int | w, | ||
int | h, | ||
int | stride | ||
) | [static] |
Definition at line 1905 of file mpegvideo_enc.c.
Referenced by block_sse(), encode_thread(), main(), and sse_mb().
static int sse_mb | ( | MpegEncContext * | s | ) | [static] |
Definition at line 1926 of file mpegvideo_enc.c.
Referenced by encode_mb_hq().
static void update_duplicate_context_after_me | ( | MpegEncContext * | dst, |
MpegEncContext * | src | ||
) | [static] |
Definition at line 209 of file mpegvideo_enc.c.
Referenced by encode_picture().
static void update_qscale | ( | MpegEncContext * | s | ) | [inline, static] |
Definition at line 137 of file mpegvideo_enc.c.
Referenced by encode_mb_internal(), encode_picture(), and estimate_qp().
static void write_slice_end | ( | MpegEncContext * | s | ) | [static] |
Definition at line 2019 of file mpegvideo_enc.c.
Referenced by encode_thread().
int16_t basis[64][64] [static] |
Definition at line 3298 of file mpegvideo_enc.c.
Referenced by add_8x8basis_TMPL(), and try_8x8basis_TMPL().
uint8_t default_fcode_tab[MAX_MV *2+1] [static] |
Definition at line 61 of file mpegvideo_enc.c.
Referenced by MPV_encode_defaults().
uint8_t default_mv_penalty[MAX_FCODE+1][MAX_MV *2+1] [static] |
Definition at line 60 of file mpegvideo_enc.c.
Referenced by MPV_encode_defaults().
{ "h263", AVMEDIA_TYPE_VIDEO, CODEC_ID_H263, sizeof(MpegEncContext), MPV_encode_init, MPV_encode_picture, MPV_encode_end, .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE}, .long_name= NULL_IF_CONFIG_SMALL("H.263 / H.263-1996"), }
Definition at line 3772 of file mpegvideo_enc.c.
{ "h263p", AVMEDIA_TYPE_VIDEO, CODEC_ID_H263P, sizeof(MpegEncContext), MPV_encode_init, MPV_encode_picture, MPV_encode_end, .capabilities = CODEC_CAP_SLICE_THREADS, .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE}, .long_name= NULL_IF_CONFIG_SMALL("H.263+ / H.263-1998 / H.263 version 2"), }
Definition at line 3784 of file mpegvideo_enc.c.
{ "msmpeg4v2", AVMEDIA_TYPE_VIDEO, CODEC_ID_MSMPEG4V2, sizeof(MpegEncContext), MPV_encode_init, MPV_encode_picture, MPV_encode_end, .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE}, .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 2"), }
Definition at line 3797 of file mpegvideo_enc.c.
{ "msmpeg4", AVMEDIA_TYPE_VIDEO, CODEC_ID_MSMPEG4V3, sizeof(MpegEncContext), MPV_encode_init, MPV_encode_picture, MPV_encode_end, .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE}, .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 3"), }
Definition at line 3809 of file mpegvideo_enc.c.
{ "wmv1", AVMEDIA_TYPE_VIDEO, CODEC_ID_WMV1, sizeof(MpegEncContext), MPV_encode_init, MPV_encode_picture, MPV_encode_end, .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE}, .long_name= NULL_IF_CONFIG_SMALL("Windows Media Video 7"), }
Definition at line 3821 of file mpegvideo_enc.c.