/*
- * ITU H263 bitstream encoder
+ * ITU H.263 bitstream encoder
* Copyright (c) 2000,2001 Fabrice Bellard
- * H263+ support.
+ * H.263+ support.
* Copyright (c) 2001 Juan J. Sierralta P
* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
*
/**
* @file
- * h263 bitstream encoder.
+ * H.263 bitstream encoder.
*/
-//#define DEBUG
#include <limits.h>
-#include "dsputil.h"
+#include "libavutil/attributes.h"
#include "avcodec.h"
#include "mpegvideo.h"
+#include "mpegvideodata.h"
#include "h263.h"
+#include "h263data.h"
#include "mathops.h"
-#include "unary.h"
+#include "mpegutils.h"
#include "flv.h"
#include "mpeg4video.h"
#include "internal.h"
-//#undef NDEBUG
-//#include <assert.h>
-
/**
* Table of number of bits a motion vector component needs.
*/
return FF_ASPECT_EXTENDED;
}
-void h263_encode_picture_header(MpegEncContext * s, int picture_number)
+void ff_h263_encode_picture_header(MpegEncContext * s, int picture_number)
{
int format, coded_frame_rate, coded_frame_rate_base, i, temp_ref;
int best_clock_code=1;
coded_frame_rate= 1800000;
coded_frame_rate_base= (1000+best_clock_code)*best_divisor;
- align_put_bits(&s->pb);
+ avpriv_align_put_bits(&s->pb);
/* Update the pointer to last GOB */
s->ptr_lastgob = put_bits_ptr(&s->pb);
put_sbits(&s->pb, 8, temp_ref); /* TemporalReference */
put_bits(&s->pb, 1, 1); /* marker */
- put_bits(&s->pb, 1, 0); /* h263 id */
+ put_bits(&s->pb, 1, 0); /* H.263 id */
put_bits(&s->pb, 1, 0); /* split screen off */
put_bits(&s->pb, 1, 0); /* camera off */
put_bits(&s->pb, 1, 0); /* freeze picture release off */
- format = ff_match_2uint16(h263_format, FF_ARRAY_ELEMS(h263_format), s->width, s->height);
+ format = ff_match_2uint16(ff_h263_format, FF_ARRAY_ELEMS(ff_h263_format), s->width, s->height);
if (!s->h263_plus) {
/* H.263v1 */
put_bits(&s->pb, 3, format);
put_bits(&s->pb, 1, 0); /* Unrestricted Motion Vector: off */
put_bits(&s->pb, 1, 0); /* SAC: off */
put_bits(&s->pb, 1, s->obmc); /* Advanced Prediction */
- put_bits(&s->pb, 1, 0); /* only I/P frames, no PB frame */
+ put_bits(&s->pb, 1, 0); /* only I/P-frames, no PB-frame */
put_bits(&s->pb, 5, s->qscale);
put_bits(&s->pb, 1, 0); /* Continuous Presence Multipoint mode: off */
} else {
/**
* Encode a group of blocks header.
*/
-void h263_encode_gob_header(MpegEncContext * s, int mb_line)
+void ff_h263_encode_gob_header(MpegEncContext * s, int mb_line)
{
put_bits(&s->pb, 17, 1); /* GBSC */
}
/**
- * modify qscale so that encoding is acually possible in h263 (limit difference to -2..2)
+ * modify qscale so that encoding is actually possible in H.263 (limit difference to -2..2)
*/
void ff_clean_h263_qscales(MpegEncContext *s){
int i;
- int8_t * const qscale_table = s->current_picture.f.qscale_table;
+ int8_t * const qscale_table = s->current_picture.qscale_table;
ff_init_qscale_tab(s);
qscale_table[ s->mb_index2xy[i] ]= qscale_table[ s->mb_index2xy[i+1] ]+2;
}
- if(s->codec_id != CODEC_ID_H263P){
+ if(s->codec_id != AV_CODEC_ID_H263P){
for(i=1; i<s->mb_num; i++){
int mb_xy= s->mb_index2xy[i];
static const int dquant_code[5]= {1,0,9,2,3};
/**
- * encodes a 8x8 block.
+ * Encode an 8x8 block.
* @param block the 8x8 block
* @param n block index (0-3 are luma, 4-5 are chroma)
*/
-static void h263_encode_block(MpegEncContext * s, DCTELEM * block, int n)
+static void h263_encode_block(MpegEncContext * s, int16_t * block, int n)
{
int level, run, last, i, j, last_index, last_non_zero, sign, slevel, code;
RLTable *rl;
} else {
i = 0;
if (s->h263_aic && s->mb_intra)
- rl = &rl_intra_aic;
+ rl = &ff_rl_intra_aic;
if(s->alt_inter_vlc && !s->mb_intra){
int aic_vlc_bits=0;
if(level<0) level= -level;
code = get_rl_index(rl, last, run, level);
- aic_code = get_rl_index(&rl_intra_aic, last, run, level);
+ aic_code = get_rl_index(&ff_rl_intra_aic, last, run, level);
inter_vlc_bits += rl->table_vlc[code][1]+1;
- aic_vlc_bits += rl_intra_aic.table_vlc[aic_code][1]+1;
+ aic_vlc_bits += ff_rl_intra_aic.table_vlc[aic_code][1]+1;
if (code == rl->n) {
inter_vlc_bits += 1+6+8-1;
}
- if (aic_code == rl_intra_aic.n) {
+ if (aic_code == ff_rl_intra_aic.n) {
aic_vlc_bits += 1+6+8-1;
wrong_pos += run + 1;
}else
}
i = 0;
if(aic_vlc_bits < inter_vlc_bits && wrong_pos > 63)
- rl = &rl_intra_aic;
+ rl = &ff_rl_intra_aic;
}
}
}
}
-void h263_encode_mb(MpegEncContext * s,
- DCTELEM block[6][64],
- int motion_x, int motion_y)
+void ff_h263_encode_mb(MpegEncContext * s,
+ int16_t block[6][64],
+ int motion_x, int motion_y)
{
int cbpc, cbpy, i, cbp, pred_x, pred_y;
int16_t pred_dc;
int16_t rec_intradc[6];
int16_t *dc_ptr[6];
- const int interleaved_stats= (s->flags&CODEC_FLAG_PASS1);
+ const int interleaved_stats = s->avctx->flags & AV_CODEC_FLAG_PASS1;
if (!s->mb_intra) {
/* compute cbp */
}
/* motion vectors: 16x16 mode */
- h263_pred_motion(s, 0, 0, &pred_x, &pred_y);
+ ff_h263_pred_motion(s, 0, 0, &pred_x, &pred_y);
if (!s->umvplus) {
ff_h263_encode_motion_vector(s, motion_x - pred_x,
for(i=0; i<4; i++){
/* motion vectors: 8x8 mode*/
- h263_pred_motion(s, i, 0, &pred_x, &pred_y);
+ ff_h263_pred_motion(s, i, 0, &pred_x, &pred_y);
- motion_x = s->current_picture.f.motion_val[0][s->block_index[i]][0];
- motion_y = s->current_picture.f.motion_val[0][s->block_index[i]][1];
+ motion_x = s->current_picture.motion_val[0][s->block_index[i]][0];
+ motion_y = s->current_picture.motion_val[0][s->block_index[i]][1];
if (!s->umvplus) {
ff_h263_encode_motion_vector(s, motion_x - pred_x,
motion_y - pred_y, 1);
if(i<4) scale= s->y_dc_scale;
else scale= s->c_dc_scale;
- pred_dc = h263_pred_dc(s, i, &dc_ptr[i]);
+ pred_dc = ff_h263_pred_dc(s, i, &dc_ptr[i]);
level -= pred_dc;
/* Quant */
if (level >= 0)
else
level = (level - (scale>>1))/scale;
- /* AIC can change CBP */
- if (level == 0 && s->block_last_index[i] == 0)
- s->block_last_index[i] = -1;
-
if(!s->modified_quant){
if (level < -127)
level = -127;
/* Update AC/DC tables */
*dc_ptr[i] = rec_intradc[i];
- if (s->block_last_index[i] >= 0)
+ /* AIC can change CBP */
+ if (s->block_last_index[i] > 0 ||
+ (s->block_last_index[i] == 0 && level !=0))
cbp |= 1 << (5 - i);
}
}else{
void ff_h263_encode_motion(MpegEncContext * s, int val, int f_code)
{
- int range, l, bit_size, sign, code, bits;
+ int range, bit_size, sign, code, bits;
if (val == 0) {
/* zero vector */
code = 0;
- put_bits(&s->pb, mvtab[code][1], mvtab[code][0]);
+ put_bits(&s->pb, ff_mvtab[code][1], ff_mvtab[code][0]);
} else {
bit_size = f_code - 1;
range = 1 << bit_size;
/* modulo encoding */
- l= INT_BIT - 6 - bit_size;
- val = (val<<l)>>l;
+ val = sign_extend(val, 6 + bit_size);
sign = val>>31;
val= (val^sign)-sign;
sign&=1;
code = (val >> bit_size) + 1;
bits = val & (range - 1);
- put_bits(&s->pb, mvtab[code][1] + 1, (mvtab[code][0] << 1) | sign);
+ put_bits(&s->pb, ff_mvtab[code][1] + 1, (ff_mvtab[code][0] << 1) | sign);
if (bit_size > 0) {
put_bits(&s->pb, bit_size, bits);
}
}
}
-static void init_mv_penalty_and_fcode(MpegEncContext *s)
+static av_cold void init_mv_penalty_and_fcode(MpegEncContext *s)
{
int f_code;
int mv;
for(mv=-MAX_MV; mv<=MAX_MV; mv++){
int len;
- if(mv==0) len= mvtab[0][1];
+ if(mv==0) len= ff_mvtab[0][1];
else{
int val, bit_size, code;
val--;
code = (val >> bit_size) + 1;
if(code<33){
- len= mvtab[code][1] + 1 + bit_size;
+ len= ff_mvtab[code][1] + 1 + bit_size;
}else{
- len= mvtab[32][1] + av_log2(code>>5) + 2 + bit_size;
+ len= ff_mvtab[32][1] + av_log2(code>>5) + 2 + bit_size;
}
}
}
}
-static void init_uni_h263_rl_tab(RLTable *rl, uint32_t *bits_tab, uint8_t *len_tab){
+static av_cold void init_uni_h263_rl_tab(RLTable *rl, uint32_t *bits_tab,
+ uint8_t *len_tab)
+{
int slevel, run, last;
assert(MAX_LEVEL >= 64);
}
}
-void h263_encode_init(MpegEncContext *s)
+av_cold void ff_h263_encode_init(MpegEncContext *s)
{
static int done = 0;
if (!done) {
done = 1;
- init_rl(&ff_h263_rl_inter, ff_h263_static_rl_table_store[0]);
- init_rl(&rl_intra_aic, ff_h263_static_rl_table_store[1]);
+ ff_rl_init(&ff_h263_rl_inter, ff_h263_static_rl_table_store[0]);
+ ff_rl_init(&ff_rl_intra_aic, ff_h263_static_rl_table_store[1]);
- init_uni_h263_rl_tab(&rl_intra_aic, NULL, uni_h263_intra_aic_rl_len);
+ init_uni_h263_rl_tab(&ff_rl_intra_aic, NULL, uni_h263_intra_aic_rl_len);
init_uni_h263_rl_tab(&ff_h263_rl_inter , NULL, uni_h263_inter_rl_len);
init_mv_penalty_and_fcode(s);
}
- s->me.mv_penalty= mv_penalty; //FIXME exact table for msmpeg4 & h263p
+ s->me.mv_penalty= mv_penalty; // FIXME exact table for MSMPEG4 & H.263+
s->intra_ac_vlc_length =s->inter_ac_vlc_length = uni_h263_inter_rl_len;
s->intra_ac_vlc_last_length=s->inter_ac_vlc_last_length= uni_h263_inter_rl_len + 128*64;
}
s->ac_esc_length= 7+1+6+8;
- // use fcodes >1 only for mpeg4 & h263 & h263p FIXME
+ // use fcodes >1 only for MPEG-4 & H.263 & H.263+ FIXME
switch(s->codec_id){
- case CODEC_ID_MPEG4:
+ case AV_CODEC_ID_MPEG4:
s->fcode_tab= fcode_tab;
break;
- case CODEC_ID_H263P:
+ case AV_CODEC_ID_H263P:
if(s->umvplus)
s->fcode_tab= umv_fcode_tab;
if(s->modified_quant){
s->max_qcoeff= 127;
}
break;
- //Note for mpeg4 & h263 the dc-scale table will be set per frame as needed later
- case CODEC_ID_FLV1:
+ // Note for MPEG-4 & H.263 the dc-scale table will be set per frame as needed later
+ case AV_CODEC_ID_FLV1:
if (s->h263_flv > 1) {
s->min_qcoeff= -1023;
s->max_qcoeff= 1023;
projects / ffmpeg / blobdiff