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Document several more things.

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Originally committed as revision 21047 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2010-01-07 03:54:10 +00:00
parent b0704443f2
commit 214cb565c0
1 changed files with 17 additions and 0 deletions
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17
libavcodec/h263.c
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@ -61,15 +61,32 @@
#define CBPC_B_VLC_BITS 3
#if CONFIG_ENCODERS
//The uni_DCtab_* tables below contain unified bits+length tables to encode DC
//differences in mpeg4. Unified in the sense that the specification specifies
//this encoding in several steps.
static uint8_t uni_DCtab_lum_len[512];
static uint8_t uni_DCtab_chrom_len[512];
static uint16_t uni_DCtab_lum_bits[512];
static uint16_t uni_DCtab_chrom_bits[512];
/**
* Table of number of bits a motion vector component needs.
*/
static uint8_t mv_penalty[MAX_FCODE+1][MAX_MV*2+1];
/**
* Minimal fcode that a motion vector component would need.
*/
static uint8_t fcode_tab[MAX_MV*2+1];
/**
* Minimal fcode that a motion vector component would need in umv.
* All entries in this table are 1.
*/
static uint8_t umv_fcode_tab[MAX_MV*2+1];
//unified encoding tables for run length encoding of coefficients
//unified in the sense that the specification specifies the encoding in several steps.
static uint32_t uni_mpeg4_intra_rl_bits[64*64*2*2];
static uint8_t uni_mpeg4_intra_rl_len [64*64*2*2];
static uint32_t uni_mpeg4_inter_rl_bits[64*64*2*2];