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ffmpeg.wasm-core
Commit 7f2fe444 authored by Michael Niedermayer's avatar Michael Niedermayer
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single coefficient elimination 

prequantization
more readable malloc & check if NULL
error concealment / error resilience
b_quant_offset (unfinished, should be 0 for now)
data partitioning

Originally committed as revision 642 to svn://svn.ffmpeg.org/ffmpeg/trunk
parent 0d21a846
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Showing with 540 additions and 285 deletions
libavcodec/mpegvideo.c
View file @ 7f2fe444
......@@ -109,6 +109,15 @@ static void convert_matrix(int (*qmat)[64], uint16_t (*qmat16)[64], uint16_t (*q
}
}
}
// move into common.c perhaps
#define CHECKED_ALLOCZ(p, size)\
{\
p= av_mallocz(size);\
if(p==NULL){\
perror("malloc");\
goto fail;\
}\
}
/* init common structure for both encoder and decoder */
int MPV_common_init(MpegEncContext *s)
......@@ -143,24 +152,18 @@ int MPV_common_init(MpegEncContext *s)
c_size = (w >> shift) * (h >> shift);
pict_start = (w >> shift) * (EDGE_WIDTH >> shift) + (EDGE_WIDTH >> shift);
pict = av_mallocz(c_size);
if (pict == NULL)
goto fail;
CHECKED_ALLOCZ(pict, c_size)
s->last_picture_base[i] = pict;
s->last_picture[i] = pict + pict_start;
pict = av_mallocz(c_size);
if (pict == NULL)
goto fail;
CHECKED_ALLOCZ(pict, c_size)
s->next_picture_base[i] = pict;
s->next_picture[i] = pict + pict_start;
if (s->has_b_frames || s->codec_id==CODEC_ID_MPEG4) {
/* Note the MPEG4 stuff is here cuz of buggy encoders which dont set the low_delay flag but
do low-delay encoding, so we cant allways distinguish b-frame containing streams from low_delay streams */
pict = av_mallocz(c_size);
if (pict == NULL)
goto fail;
CHECKED_ALLOCZ(pict, c_size)
s->aux_picture_base[i] = pict;
s->aux_picture[i] = pict + pict_start;
}
......@@ -169,72 +172,24 @@ int MPV_common_init(MpegEncContext *s)
if (s->encoding) {
int j;
int mv_table_size= (s->mb_width+2)*(s->mb_height+2);
/* Allocate MB type table */
s->mb_type = av_mallocz(s->mb_num * sizeof(char));
if (s->mb_type == NULL) {
perror("malloc");
goto fail;
}
s->mb_var = av_mallocz(s->mb_num * sizeof(INT16));
if (s->mb_var == NULL) {
perror("malloc");
goto fail;
}
CHECKED_ALLOCZ(s->mb_var , s->mb_num * sizeof(INT16))
CHECKED_ALLOCZ(s->mc_mb_var, s->mb_num * sizeof(INT16))
/* Allocate MV tables */
s->p_mv_table = av_mallocz(mv_table_size * 2 * sizeof(INT16));
if (s->p_mv_table == NULL) {
perror("malloc");
goto fail;
}
s->last_p_mv_table = av_mallocz(mv_table_size * 2 * sizeof(INT16));
if (s->last_p_mv_table == NULL) {
perror("malloc");
goto fail;
}
s->b_forw_mv_table = av_mallocz(mv_table_size * 2 * sizeof(INT16));
if (s->b_forw_mv_table == NULL) {
perror("malloc");
goto fail;
}
s->b_back_mv_table = av_mallocz(mv_table_size * 2 * sizeof(INT16));
if (s->b_back_mv_table == NULL) {
perror("malloc");
goto fail;
}
s->b_bidir_forw_mv_table = av_mallocz(mv_table_size * 2 * sizeof(INT16));
if (s->b_bidir_forw_mv_table == NULL) {
perror("malloc");
goto fail;
}
s->b_bidir_back_mv_table = av_mallocz(mv_table_size * 2 * sizeof(INT16));
if (s->b_bidir_back_mv_table == NULL) {
perror("malloc");
goto fail;
}
s->b_direct_forw_mv_table = av_mallocz(mv_table_size * 2 * sizeof(INT16));
if (s->b_direct_forw_mv_table == NULL) {
perror("malloc");
goto fail;
}
s->b_direct_back_mv_table = av_mallocz(mv_table_size * 2 * sizeof(INT16));
if (s->b_direct_back_mv_table == NULL) {
perror("malloc");
goto fail;
}
s->b_direct_mv_table = av_mallocz(mv_table_size * 2 * sizeof(INT16));
if (s->b_direct_mv_table == NULL) {
perror("malloc");
goto fail;
}
s->me_scratchpad = av_mallocz( s->linesize*16*3*sizeof(uint8_t));
if (s->me_scratchpad == NULL) {
perror("malloc");
goto fail;
}
CHECKED_ALLOCZ(s->p_mv_table , mv_table_size * 2 * sizeof(INT16))
CHECKED_ALLOCZ(s->b_forw_mv_table , mv_table_size * 2 * sizeof(INT16))
CHECKED_ALLOCZ(s->b_back_mv_table , mv_table_size * 2 * sizeof(INT16))
CHECKED_ALLOCZ(s->b_bidir_forw_mv_table , mv_table_size * 2 * sizeof(INT16))
CHECKED_ALLOCZ(s->b_bidir_back_mv_table , mv_table_size * 2 * sizeof(INT16))
CHECKED_ALLOCZ(s->b_direct_forw_mv_table, mv_table_size * 2 * sizeof(INT16))
CHECKED_ALLOCZ(s->b_direct_back_mv_table, mv_table_size * 2 * sizeof(INT16))
CHECKED_ALLOCZ(s->b_direct_mv_table , mv_table_size * 2 * sizeof(INT16))
CHECKED_ALLOCZ(s->me_scratchpad, s->linesize*16*3*sizeof(uint8_t))
CHECKED_ALLOCZ(s->me_map , ME_MAP_SIZE*sizeof(uint32_t))
CHECKED_ALLOCZ(s->me_score_map, ME_MAP_SIZE*sizeof(uint16_t))
if(s->max_b_frames){
for(j=0; j<REORDER_BUFFER_SIZE; j++){
......@@ -247,23 +202,26 @@ int MPV_common_init(MpegEncContext *s)
shift = (i == 0) ? 0 : 1;
c_size = (w >> shift) * (h >> shift);
pict = av_mallocz(c_size);
if (pict == NULL)
goto fail;
CHECKED_ALLOCZ(pict, c_size);
s->picture_buffer[j][i] = pict;
}
}
}
if(s->codec_id==CODEC_ID_MPEG4){
CHECKED_ALLOCZ(s->tex_pb_buffer, PB_BUFFER_SIZE);
CHECKED_ALLOCZ( s->pb2_buffer, PB_BUFFER_SIZE);
}
}
if (s->out_format == FMT_H263 || s->encoding) {
int size;
/* Allocate MB type table */
CHECKED_ALLOCZ(s->mb_type , s->mb_num * sizeof(UINT8))
/* MV prediction */
size = (2 * s->mb_width + 2) * (2 * s->mb_height + 2);
s->motion_val = av_malloc(size * 2 * sizeof(INT16));
if (s->motion_val == NULL)
goto fail;
memset(s->motion_val, 0, size * 2 * sizeof(INT16));
CHECKED_ALLOCZ(s->motion_val, size * 2 * sizeof(INT16));
}
if (s->h263_pred || s->h263_plus) {
......@@ -274,44 +232,38 @@ int MPV_common_init(MpegEncContext *s)
y_size = (2 * s->mb_width + 2) * (2 * s->mb_height + 2);
c_size = (s->mb_width + 2) * (s->mb_height + 2);
size = y_size + 2 * c_size;
s->dc_val[0] = av_malloc(size * sizeof(INT16));
if (s->dc_val[0] == NULL)
goto fail;
CHECKED_ALLOCZ(s->dc_val[0], size * sizeof(INT16));
s->dc_val[1] = s->dc_val[0] + y_size;
s->dc_val[2] = s->dc_val[1] + c_size;
for(i=0;i<size;i++)
s->dc_val[0][i] = 1024;
/* ac values */
s->ac_val[0] = av_mallocz(size * sizeof(INT16) * 16);
if (s->ac_val[0] == NULL)
goto fail;
CHECKED_ALLOCZ(s->ac_val[0], size * sizeof(INT16) * 16);
s->ac_val[1] = s->ac_val[0] + y_size;
s->ac_val[2] = s->ac_val[1] + c_size;
/* cbp values */
s->coded_block = av_mallocz(y_size);
if (!s->coded_block)
goto fail;
CHECKED_ALLOCZ(s->coded_block, y_size);
/* which mb is a intra block */
s->mbintra_table = av_mallocz(s->mb_num);
if (!s->mbintra_table)
goto fail;
CHECKED_ALLOCZ(s->mbintra_table, s->mb_num);
memset(s->mbintra_table, 1, s->mb_num);
/* divx501 bitstream reorder buffer */
s->bitstream_buffer= av_mallocz(BITSTREAM_BUFFER_SIZE);
if (!s->bitstream_buffer)
goto fail;
CHECKED_ALLOCZ(s->bitstream_buffer, BITSTREAM_BUFFER_SIZE);
/* cbp, ac_pred, pred_dir */
CHECKED_ALLOCZ(s->cbp_table , s->mb_num * sizeof(UINT8))
CHECKED_ALLOCZ(s->pred_dir_table, s->mb_num * sizeof(UINT8))
CHECKED_ALLOCZ(s->qscale_table , s->mb_num * sizeof(UINT8))
}
/* default structure is frame */
s->picture_structure = PICT_FRAME;
/* init macroblock skip table */
s->mbskip_table = av_mallocz(s->mb_num);
if (!s->mbskip_table)
goto fail;
CHECKED_ALLOCZ(s->mbskip_table, s->mb_num);
s->block= s->blocks[0];
......@@ -322,6 +274,9 @@ int MPV_common_init(MpegEncContext *s)
return -1;
}
//extern int sads;
/* init common structure for both encoder and decoder */
void MPV_common_end(MpegEncContext *s)
{
......@@ -329,8 +284,8 @@ void MPV_common_end(MpegEncContext *s)
av_freep(&s->mb_type);
av_freep(&s->mb_var);
av_freep(&s->mc_mb_var);
av_freep(&s->p_mv_table);
av_freep(&s->last_p_mv_table);
av_freep(&s->b_forw_mv_table);
av_freep(&s->b_back_mv_table);
av_freep(&s->b_bidir_forw_mv_table);
......@@ -343,10 +298,17 @@ void MPV_common_end(MpegEncContext *s)
av_freep(&s->ac_val[0]);
av_freep(&s->coded_block);
av_freep(&s->mbintra_table);
av_freep(&s->cbp_table);
av_freep(&s->pred_dir_table);
av_freep(&s->qscale_table);
av_freep(&s->me_scratchpad);
av_freep(&s->me_map);
av_freep(&s->me_score_map);
av_freep(&s->mbskip_table);
av_freep(&s->bitstream_buffer);
av_freep(&s->tex_pb_buffer);
av_freep(&s->pb2_buffer);
for(i=0;i<3;i++) {
int j;
av_freep(&s->last_picture_base[i]);
......@@ -372,6 +334,10 @@ int MPV_encode_init(AVCodecContext *avctx)
s->frame_rate = avctx->frame_rate;
s->width = avctx->width;
s->height = avctx->height;
if(avctx->gop_size > 600){
fprintf(stderr, "Warning keyframe intervall too large! reducing it ...\n");
avctx->gop_size=600;
}
s->gop_size = avctx->gop_size;
s->rtp_mode = avctx->rtp_mode;
s->rtp_payload_size = avctx->rtp_payload_size;
......@@ -383,6 +349,7 @@ int MPV_encode_init(AVCodecContext *avctx)
s->qcompress= avctx->qcompress;
s->qblur= avctx->qblur;
s->b_quant_factor= avctx->b_quant_factor;
s->b_quant_offset= avctx->b_quant_offset;
s->avctx = avctx;
s->aspect_ratio_info= avctx->aspect_ratio_info;
s->flags= avctx->flags;
......@@ -390,6 +357,10 @@ int MPV_encode_init(AVCodecContext *avctx)
s->rc_strategy= avctx->rc_strategy;
s->b_frame_strategy= avctx->b_frame_strategy;
s->codec_id= avctx->codec->id;
s->luma_elim_threshold = avctx->luma_elim_threshold;
s->chroma_elim_threshold= avctx->chroma_elim_threshold;
s->strict_std_compliance= avctx->strict_std_compliance;
s->data_partitioning= avctx->flags & CODEC_FLAG_PART;
if (s->gop_size <= 1) {
s->intra_only = 1;
......@@ -490,11 +461,6 @@ int MPV_encode_init(AVCodecContext *avctx)
return -1;
}
if((s->flags&CODEC_FLAG_4MV) && !(s->flags&CODEC_FLAG_HQ)){
printf("4MV is currently only supported in HQ mode\n");
return -1;
}
{ /* set up some save defaults, some codecs might override them later */
static int done=0;
if(!done){
......@@ -609,6 +575,8 @@ void MPV_frame_start(MpegEncContext *s)
UINT8 *tmp;
s->mb_skiped = 0;
s->decoding_error=0;
if (s->pict_type == B_TYPE) {
for(i=0;i<3;i++) {
s->current_picture[i] = s->aux_picture[i];
......@@ -627,6 +595,8 @@ void MPV_frame_start(MpegEncContext *s)
/* generic function for encode/decode called after a frame has been coded/decoded */
void MPV_frame_end(MpegEncContext *s)
{
// if((s->picture_number%100)==0 && s->encoding) printf("sads:%d //\n", sads);
/* draw edge for correct motion prediction if outside */
if (s->pict_type != B_TYPE && !s->intra_only) {
if(s->avctx==NULL || s->avctx->codec->id!=CODEC_ID_MPEG4 || s->divx_version==500){
......@@ -645,7 +615,7 @@ void MPV_frame_end(MpegEncContext *s)
if(s->pict_type!=B_TYPE){
s->last_non_b_pict_type= s->pict_type;
s->last_non_b_qscale= s->qscale;
s->last_non_b_mc_mb_var= s->mc_mb_var;
s->last_non_b_mc_mb_var= s->mc_mb_var_sum;
s->num_available_buffers++;
if(s->num_available_buffers>2) s->num_available_buffers= 2;
}
......@@ -804,6 +774,7 @@ int MPV_encode_picture(AVCodecContext *avctx,
if(s->flags&CODEC_FLAG_PASS1)
ff_write_pass1_stats(s);
}
s->input_picture_number++;
......@@ -897,7 +868,6 @@ if(s->quarter_sample)
motion_x>>=1;
motion_y>>=1;
}
dxy = ((motion_y & 1) << 1) | (motion_x & 1);
src_x = s->mb_x * 16 + (motion_x >> 1);
src_y = s->mb_y * (16 >> field_based) + (motion_y >> 1);
......@@ -1154,6 +1124,39 @@ static inline void add_dct(MpegEncContext *s,
}
}
/**
* cleans dc, ac, coded_block for the current non intra MB
*/
void ff_clean_intra_table_entries(MpegEncContext *s)
{
int wrap = s->block_wrap[0];
int xy = s->block_index[0];
s->dc_val[0][xy ] =
s->dc_val[0][xy + 1 ] =
s->dc_val[0][xy + wrap] =
s->dc_val[0][xy + 1 + wrap] = 1024;
/* ac pred */
memset(s->ac_val[0][xy ], 0, 32 * sizeof(INT16));
memset(s->ac_val[0][xy + wrap], 0, 32 * sizeof(INT16));
if (s->msmpeg4_version>=3) {
s->coded_block[xy ] =
s->coded_block[xy + 1 ] =
s->coded_block[xy + wrap] =
s->coded_block[xy + 1 + wrap] = 0;
}
/* chroma */
wrap = s->block_wrap[4];
xy = s->mb_x + 1 + (s->mb_y + 1) * wrap;
s->dc_val[1][xy] =
s->dc_val[2][xy] = 1024;
/* ac pred */
memset(s->ac_val[1][xy], 0, 16 * sizeof(INT16));
memset(s->ac_val[2][xy], 0, 16 * sizeof(INT16));
s->mbintra_table[s->mb_x + s->mb_y*s->mb_width]= 0;
}
/* generic function called after a macroblock has been parsed by the
decoder or after it has been encoded by the encoder.
......@@ -1182,41 +1185,11 @@ void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
/* update DC predictors for P macroblocks */
if (!s->mb_intra) {
if (s->h263_pred || s->h263_aic) {
if(s->mbintra_table[mb_x + mb_y*s->mb_width])
{
int wrap, xy, v;
s->mbintra_table[mb_x + mb_y*s->mb_width]=0;
wrap = 2 * s->mb_width + 2;
xy = 2 * mb_x + 1 + (2 * mb_y + 1) * wrap;
v = 1024;
s->dc_val[0][xy] = v;
s->dc_val[0][xy + 1] = v;
s->dc_val[0][xy + wrap] = v;
s->dc_val[0][xy + 1 + wrap] = v;
/* ac pred */
memset(s->ac_val[0][xy], 0, 16 * sizeof(INT16));
memset(s->ac_val[0][xy + 1], 0, 16 * sizeof(INT16));
memset(s->ac_val[0][xy + wrap], 0, 16 * sizeof(INT16));
memset(s->ac_val[0][xy + 1 + wrap], 0, 16 * sizeof(INT16));
if (s->h263_msmpeg4) {
s->coded_block[xy] = 0;
s->coded_block[xy + 1] = 0;
s->coded_block[xy + wrap] = 0;
s->coded_block[xy + 1 + wrap] = 0;
}
/* chroma */
wrap = s->mb_width + 2;
xy = mb_x + 1 + (mb_y + 1) * wrap;
s->dc_val[1][xy] = v;
s->dc_val[2][xy] = v;
/* ac pred */
memset(s->ac_val[1][xy], 0, 16 * sizeof(INT16));
memset(s->ac_val[2][xy], 0, 16 * sizeof(INT16));
}
if(s->mbintra_table[mb_x + mb_y*s->mb_width])
ff_clean_intra_table_entries(s);
} else {
s->last_dc[0] = 128 << s->intra_dc_precision;
s->last_dc[1] = 128 << s->intra_dc_precision;
s->last_dc[0] =
s->last_dc[1] =
s->last_dc[2] = 128 << s->intra_dc_precision;
}
}
......@@ -1284,8 +1257,10 @@ void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
}
if (!s->mb_intra) {
const int xy= s->mb_y * s->mb_width + s->mb_x;
/* motion handling */
if((s->flags&CODEC_FLAG_HQ) || (!s->encoding)){
/* decoding or more than one mb_type (MC was allready done otherwise) */
if((!s->encoding) || (s->mb_type[xy]&(s->mb_type[xy]-1))){
if ((!s->no_rounding) || s->pict_type==B_TYPE){
op_pix = put_pixels_tab;
op_qpix= qpel_mc_rnd_tab;
......@@ -1329,6 +1304,50 @@ void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
emms_c(); //FIXME remove
}
static inline void dct_single_coeff_elimination(MpegEncContext *s, int n, int threshold, int skip_dc)
{
static const char tab[64]=
{3,2,2,1,1,1,1,1,
1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,
0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0};
int score=0;
int run=0;
int i;
DCTELEM *block= s->block[n];
const int last_index= s->block_last_index[n];
if(skip_dc) skip_dc=1;
/* are all which we could set to zero are allready zero? */
if(last_index<=skip_dc - 1) return;
for(i=0; i<=last_index; i++){
const int j = zigzag_direct[i];
const int level = ABS(block[j]);
if(level==1){
if(skip_dc && i==0) continue;
score+= tab[run];
run=0;
}else if(level>1){
return;
}else{
run++;
}
}
if(score >= threshold) return;
for(i=skip_dc; i<=last_index; i++){
const int j = zigzag_direct[i];
block[j]=0;
}
if(block[0]) s->block_last_index[n]= 0;
else s->block_last_index[n]= -1;
}
static inline void clip_coeffs(MpegEncContext *s, DCTELEM *block, int last_index)
{
int i;
......@@ -1350,6 +1369,7 @@ static void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
const int mb_x= s->mb_x;
const int mb_y= s->mb_y;
int i;
int skip_dct[6];
#if 0
if (s->interlaced_dct) {
dct_linesize = s->linesize * 2;
......@@ -1359,6 +1379,7 @@ static void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
dct_offset = s->linesize * 8;
}
#endif
for(i=0; i<6; i++) skip_dct[i]=0;
if (s->mb_intra) {
UINT8 *ptr;
......@@ -1381,12 +1402,17 @@ static void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
op_pixels_func *op_pix;
qpel_mc_func *op_qpix;
UINT8 *dest_y, *dest_cb, *dest_cr;
UINT8 *ptr;
int wrap;
UINT8 *ptr_y, *ptr_cb, *ptr_cr;
int wrap_y, wrap_c;
dest_y = s->current_picture[0] + (mb_y * 16 * s->linesize ) + mb_x * 16;
dest_cb = s->current_picture[1] + (mb_y * 8 * (s->linesize >> 1)) + mb_x * 8;
dest_cr = s->current_picture[2] + (mb_y * 8 * (s->linesize >> 1)) + mb_x * 8;
wrap_y = s->linesize;
wrap_c = wrap_y>>1;
ptr_y = s->new_picture[0] + (mb_y * 16 * wrap_y) + mb_x * 16;
ptr_cb = s->new_picture[1] + (mb_y * 8 * wrap_c) + mb_x * 8;
ptr_cr = s->new_picture[2] + (mb_y * 8 * wrap_c) + mb_x * 8;
if ((!s->no_rounding) || s->pict_type==B_TYPE){
op_pix = put_pixels_tab;
......@@ -1406,19 +1432,39 @@ static void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
if (s->mv_dir & MV_DIR_BACKWARD) {
MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture, op_pix, op_qpix);
}
wrap = s->linesize;
ptr = s->new_picture[0] + (mb_y * 16 * wrap) + mb_x * 16;
diff_pixels(s->block[0], ptr , dest_y , wrap);
diff_pixels(s->block[1], ptr + 8, dest_y + 8, wrap);
diff_pixels(s->block[2], ptr + 8 * wrap , dest_y + 8 * wrap , wrap);
diff_pixels(s->block[3], ptr + 8 * wrap + 8, dest_y + 8 * wrap + 8, wrap);
wrap >>=1;
ptr = s->new_picture[1] + (mb_y * 8 * wrap) + mb_x * 8;
diff_pixels(s->block[4], ptr, dest_cb, wrap);
diff_pixels(s->block[0], ptr_y , dest_y , wrap_y);
diff_pixels(s->block[1], ptr_y + 8, dest_y + 8, wrap_y);
diff_pixels(s->block[2], ptr_y + 8 * wrap_y , dest_y + 8 * wrap_y , wrap_y);
diff_pixels(s->block[3], ptr_y + 8 * wrap_y + 8, dest_y + 8 * wrap_y + 8, wrap_y);
diff_pixels(s->block[4], ptr_cb, dest_cb, wrap_c);
diff_pixels(s->block[5], ptr_cr, dest_cr, wrap_c);
/* pre quantization */
if(s->mc_mb_var[s->mb_width*mb_y+ mb_x]<2*s->qscale*s->qscale){
if(pix_abs8x8(ptr_y , dest_y , wrap_y) < 20*s->qscale) skip_dct[0]= 1;
if(pix_abs8x8(ptr_y + 8, dest_y + 8, wrap_y) < 20*s->qscale) skip_dct[1]= 1;
if(pix_abs8x8(ptr_y + 8*wrap_y , dest_y + 8*wrap_y , wrap_y) < 20*s->qscale) skip_dct[2]= 1;
if(pix_abs8x8(ptr_y + 8*wrap_y + 8, dest_y + 8*wrap_y + 8, wrap_y) < 20*s->qscale) skip_dct[3]= 1;
if(pix_abs8x8(ptr_cb , dest_cb , wrap_y) < 20*s->qscale) skip_dct[4]= 1;
if(pix_abs8x8(ptr_cr , dest_cr , wrap_y) < 20*s->qscale) skip_dct[5]= 1;
#if 0
{
static int stat[7];
int num=0;
for(i=0; i<6; i++)
if(skip_dct[i]) num++;
stat[num]++;
if(s->mb_x==0 && s->mb_y==0){
for(i=0; i<7; i++){
printf("%6d %1d\n", stat[i], i);
}
}
}
#endif
}
ptr = s->new_picture[2] + (mb_y * 8 * wrap) + mb_x * 8;
diff_pixels(s->block[5], ptr, dest_cr, wrap);
}
#if 0
......@@ -1435,7 +1481,7 @@ static void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
}
#endif
/* DCT & quantize */
if (s->h263_pred && s->msmpeg4_version!=2) {
if (s->h263_pred && !(s->msmpeg4_version==1 || s->msmpeg4_version==2)) {
h263_dc_scale(s);
} else if (s->h263_aic) {
s->y_dc_scale = 2*s->qscale;
......@@ -1453,13 +1499,22 @@ static void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
}
}else{
for(i=0;i<6;i++) {
int overflow;
s->block_last_index[i] = dct_quantize(s, s->block[i], i, s->qscale, &overflow);
if(!skip_dct[i]){
int overflow;
s->block_last_index[i] = dct_quantize(s, s->block[i], i, s->qscale, &overflow);
// FIXME we could decide to change to quantizer instead of clipping
// JS: I don't think that would be a good idea it could lower quality instead
// of improve it. Just INTRADC clipping deserves changes in quantizer
if (overflow) clip_coeffs(s, s->block[i], s->block_last_index[i]);
if (overflow) clip_coeffs(s, s->block[i], s->block_last_index[i]);
}else
s->block_last_index[i]= -1;
}
if(s->luma_elim_threshold && !s->mb_intra)
for(i=0; i<4; i++)
dct_single_coeff_elimination(s, i, s->luma_elim_threshold, 0);
if(s->chroma_elim_threshold && !s->mb_intra)
for(i=4; i<6; i++)
dct_single_coeff_elimination(s, i, s->chroma_elim_threshold, 1);
}
/* huffman encode */
......@@ -1481,13 +1536,15 @@ static void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
}
}
static void copy_bits(PutBitContext *pb, UINT8 *src, int length)
void ff_copy_bits(PutBitContext *pb, UINT8 *src, int length)
{
#if 1
int bytes= length>>4;
int bits= length&15;
int i;
if(length==0) return;
for(i=0; i<bytes; i++) put_bits(pb, 16, be2me_16(((uint16_t*)src)[i]));
put_bits(pb, bits, be2me_16(((uint16_t*)src)[i])>>(16-bits));
#else
......@@ -1500,7 +1557,7 @@ static void copy_bits(PutBitContext *pb, UINT8 *src, int length)
#endif
}
static void copy_context_before_encode(MpegEncContext *d, MpegEncContext *s, int type){
static inline void copy_context_before_encode(MpegEncContext *d, MpegEncContext *s, int type){
int i;
memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
......@@ -1523,7 +1580,7 @@ static void copy_context_before_encode(MpegEncContext *d, MpegEncContext *s, int
d->mb_skiped= s->mb_skiped;
}
static void copy_context_after_encode(MpegEncContext *d, MpegEncContext *s, int type){
static inline void copy_context_after_encode(MpegEncContext *d, MpegEncContext *s, int type){
int i;
memcpy(d->mv, s->mv, 2*4*2*sizeof(int));
......@@ -1548,11 +1605,45 @@ static void copy_context_after_encode(MpegEncContext *d, MpegEncContext *s, int
d->mv_type= s->mv_type;
d->mv_dir= s->mv_dir;
d->pb= s->pb;
if(s->data_partitioning){
d->pb2= s->pb2;
d->tex_pb= s->tex_pb;
}
d->block= s->block;
for(i=0; i<6; i++)
d->block_last_index[i]= s->block_last_index[i];
}
static inline 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)
{
int bits_count;
copy_context_before_encode(s, backup, type);
s->block= s->blocks[*next_block];
s->pb= pb[*next_block];
if(s->data_partitioning){
s->pb2 = pb2 [*next_block];
s->tex_pb= tex_pb[*next_block];
}
encode_mb(s, motion_x, motion_y);
bits_count= get_bit_count(&s->pb);
if(s->data_partitioning){
bits_count+= get_bit_count(&s->pb2);
bits_count+= get_bit_count(&s->tex_pb);
}
if(bits_count<*dmin){
*dmin= bits_count;
*next_block^=1;
copy_context_after_encode(best, s, type);
}
}
static void encode_picture(MpegEncContext *s, int picture_number)
{
......@@ -1560,7 +1651,16 @@ static void encode_picture(MpegEncContext *s, int picture_number)
int i;
int bits;
MpegEncContext best_s, backup_s;
UINT8 bit_buf[7][3000]; //FIXME check that this is ALLWAYS large enogh for a MB
UINT8 bit_buf[2][3000];
UINT8 bit_buf2[2][3000];
UINT8 bit_buf_tex[2][3000];
PutBitContext pb[2], pb2[2], tex_pb[2];
for(i=0; i<2; i++){
init_put_bits(&pb [i], bit_buf [i], 3000, NULL, NULL);
init_put_bits(&pb2 [i], bit_buf2 [i], 3000, NULL, NULL);
init_put_bits(&tex_pb[i], bit_buf_tex[i], 3000, NULL, NULL);
}
s->picture_number = picture_number;
......@@ -1572,8 +1672,8 @@ static void encode_picture(MpegEncContext *s, int picture_number)
s->block_wrap[5]= s->mb_width + 2;
/* Reset the average MB variance */
s->avg_mb_var = 0;
s->mc_mb_var = 0;
s->mb_var_sum = 0;
s->mc_mb_var_sum = 0;
/* we need to initialize some time vars before we can encode b-frames */
if (s->h263_pred && !s->h263_msmpeg4)
......@@ -1581,10 +1681,6 @@ static void encode_picture(MpegEncContext *s, int picture_number)
/* Estimate motion for every MB */
if(s->pict_type != I_TYPE){
// int16_t (*tmp)[2]= s->p_mv_table;
// s->p_mv_table= s->last_mv_table;
// s->last_mv_table= s->mv_table;
for(mb_y=0; mb_y < s->mb_height; mb_y++) {
s->block_index[0]= s->block_wrap[0]*(mb_y*2 + 1) - 1;
s->block_index[1]= s->block_wrap[0]*(mb_y*2 + 1);
......@@ -1607,7 +1703,7 @@ static void encode_picture(MpegEncContext *s, int picture_number)
}
}
emms_c();
}else if(s->pict_type == I_TYPE){
}else /* if(s->pict_type == I_TYPE) */{
/* I-Frame */
//FIXME do we need to zero them?
memset(s->motion_val[0], 0, sizeof(INT16)*(s->mb_width*2 + 2)*(s->mb_height*2 + 2)*2);
......@@ -1615,7 +1711,7 @@ static void encode_picture(MpegEncContext *s, int picture_number)
memset(s->mb_type , MB_TYPE_INTRA, sizeof(UINT8)*s->mb_width*s->mb_height);
}
if(s->avg_mb_var < s->mc_mb_var && s->pict_type == P_TYPE){ //FIXME subtract MV bits
if(s->mb_var_sum < s->mc_mb_var_sum && s->pict_type == P_TYPE){ //FIXME subtract MV bits
s->pict_type= I_TYPE;
memset(s->mb_type , MB_TYPE_INTRA, sizeof(UINT8)*s->mb_width*s->mb_height);
if(s->max_b_frames==0){
......@@ -1703,21 +1799,31 @@ static void encode_picture(MpegEncContext *s, int picture_number)
s->gob_index = 2;
else
s->gob_index = 4;
}else if(s->codec_id==CODEC_ID_MPEG4){
s->gob_index = 1;
}
s->avg_mb_var = s->avg_mb_var / s->mb_num;
if(s->codec_id==CODEC_ID_MPEG4 && s->data_partitioning && s->pict_type!=B_TYPE)
ff_mpeg4_init_partitions(s);
s->resync_mb_x=0;
s->resync_mb_y=0;
for(mb_y=0; mb_y < s->mb_height; mb_y++) {
/* Put GOB header based on RTP MTU */
/* Put GOB header based on RTP MTU for formats which support it per line (H263*)*/
/* TODO: Put all this stuff in a separate generic function */
if (s->rtp_mode) {
if (!mb_y) {
s->ptr_lastgob = s->pb.buf;
s->ptr_last_mb_line = s->pb.buf;
} else if (s->out_format == FMT_H263 && !s->h263_pred && !s->h263_msmpeg4 && !(mb_y % s->gob_index)) {
// MN: we could move the space check from h263 -> here, as its not h263 specific
last_gob = h263_encode_gob_header(s, mb_y);
if (last_gob) {
s->first_gob_line = 1;
s->first_slice_line = 1;
}else{
/*MN: we reset it here instead at the end of each line cuz mpeg4 can have
slice lines starting & ending in the middle*/
s->first_slice_line = 0;
}
}
}
......@@ -1731,10 +1837,8 @@ static void encode_picture(MpegEncContext *s, int picture_number)
for(mb_x=0; mb_x < s->mb_width; mb_x++) {
const int mb_type= s->mb_type[mb_y * s->mb_width + mb_x];
const int xy= (mb_y+1) * (s->mb_width+2) + mb_x + 1;
PutBitContext pb;
int d;
// int d;
int dmin=10000000;
int best=0;
s->mb_x = mb_x;
s->mb_y = mb_y;
......@@ -1744,11 +1848,50 @@ static void encode_picture(MpegEncContext *s, int picture_number)
s->block_index[3]+=2;
s->block_index[4]++;
s->block_index[5]++;
/* write gob / video packet header for formats which support it at any MB (MPEG4) */
if(s->rtp_mode && s->mb_y>0 && s->codec_id==CODEC_ID_MPEG4){
int pdif= pbBufPtr(&s->pb) - s->ptr_lastgob;
//the *2 is there so we stay below the requested size
if(pdif + s->mb_line_avgsize/s->mb_width >= s->rtp_payload_size){
if(s->codec_id==CODEC_ID_MPEG4){
if(s->data_partitioning && s->pict_type!=B_TYPE){
ff_mpeg4_merge_partitions(s);
ff_mpeg4_init_partitions(s);
}
ff_mpeg4_encode_video_packet_header(s);
if(s->flags&CODEC_FLAG_PASS1){
int bits= get_bit_count(&s->pb);
s->misc_bits+= bits - s->last_bits;
s->last_bits= bits;
}
ff_mpeg4_clean_buffers(s);
}
s->ptr_lastgob = pbBufPtr(&s->pb);
s->first_slice_line=1;
s->resync_mb_x=mb_x;
s->resync_mb_y=mb_y;
}
if( (s->resync_mb_x == s->mb_x)
&& s->resync_mb_y+1 == s->mb_y){
s->first_slice_line=0;
}
}
if(mb_type & (mb_type-1)){ // more than 1 MB type possible
int next_block=0;
pb= s->pb;
int pb_bits_count, pb2_bits_count, tex_pb_bits_count;
copy_context_before_encode(&backup_s, s, -1);
backup_s.pb= s->pb;
best_s.data_partitioning= s->data_partitioning;
if(s->data_partitioning){
backup_s.pb2= s->pb2;
backup_s.tex_pb= s->tex_pb;
}
if(mb_type&MB_TYPE_INTER){
s->mv_dir = MV_DIR_FORWARD;
......@@ -1756,22 +1899,10 @@ static void encode_picture(MpegEncContext *s, int picture_number)
s->mb_intra= 0;
s->mv[0][0][0] = s->p_mv_table[xy][0];
s->mv[0][0][1] = s->p_mv_table[xy][1];
init_put_bits(&s->pb, bit_buf[1], 3000, NULL, NULL);
s->block= s->blocks[next_block];
s->last_bits= 0; //done in copy_context_before_encode but we skip that here
encode_mb(s, s->mv[0][0][0], s->mv[0][0][1]);
d= get_bit_count(&s->pb);
if(d<dmin){
flush_put_bits(&s->pb);
dmin=d;
copy_context_after_encode(&best_s, s, MB_TYPE_INTER);
best=1;
next_block^=1;
}
encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_INTER, pb, pb2, tex_pb,
&dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
}
if(mb_type&MB_TYPE_INTER4V){
copy_context_before_encode(s, &backup_s, MB_TYPE_INTER4V);
s->mv_dir = MV_DIR_FORWARD;
s->mv_type = MV_TYPE_8X8;
s->mb_intra= 0;
......@@ -1779,61 +1910,28 @@ static void encode_picture(MpegEncContext *s, int picture_number)
s->mv[0][i][0] = s->motion_val[s->block_index[i]][0];
s->mv[0][i][1] = s->motion_val[s->block_index[i]][1];
}
init_put_bits(&s->pb, bit_buf[2], 3000, NULL, NULL);
s->block= s->blocks[next_block];
encode_mb(s, 0, 0);
d= get_bit_count(&s->pb);
if(d<dmin){
flush_put_bits(&s->pb);
dmin=d;
copy_context_after_encode(&best_s, s, MB_TYPE_INTER4V);
best=2;
next_block^=1;
}
encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_INTER4V, pb, pb2, tex_pb,
&dmin, &next_block, 0, 0);
}
if(mb_type&MB_TYPE_FORWARD){
copy_context_before_encode(s, &backup_s, MB_TYPE_FORWARD);
s->mv_dir = MV_DIR_FORWARD;
s->mv_type = MV_TYPE_16X16;
s->mb_intra= 0;
s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
init_put_bits(&s->pb, bit_buf[3], 3000, NULL, NULL);
s->block= s->blocks[next_block];
encode_mb(s, s->mv[0][0][0], s->mv[0][0][1]);
d= get_bit_count(&s->pb);
if(d<dmin){
flush_put_bits(&s->pb);
dmin=d;
copy_context_after_encode(&best_s, s, MB_TYPE_FORWARD);
best=3;
next_block^=1;
}
encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_FORWARD, pb, pb2, tex_pb,
&dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
}
if(mb_type&MB_TYPE_BACKWARD){
copy_context_before_encode(s, &backup_s, MB_TYPE_BACKWARD);
s->mv_dir = MV_DIR_BACKWARD;
s->mv_type = MV_TYPE_16X16;
s->mb_intra= 0;
s->mv[1][0][0] = s->b_back_mv_table[xy][0];
s->mv[1][0][1] = s->b_back_mv_table[xy][1];
init_put_bits(&s->pb, bit_buf[4], 3000, NULL, NULL);
s->block= s->blocks[next_block];
encode_mb(s, s->mv[1][0][0], s->mv[1][0][1]);
d= get_bit_count(&s->pb);
if(d<dmin){
flush_put_bits(&s->pb);
dmin=d;
copy_context_after_encode(&best_s, s, MB_TYPE_BACKWARD);
best=4;
next_block^=1;
}
encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_BACKWARD, pb, pb2, tex_pb,
&dmin, &next_block, s->mv[1][0][0], s->mv[1][0][1]);
}
if(mb_type&MB_TYPE_BIDIR){
copy_context_before_encode(s, &backup_s, MB_TYPE_BIDIR);
s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
s->mv_type = MV_TYPE_16X16;
s->mb_intra= 0;
......@@ -1841,21 +1939,10 @@ static void encode_picture(MpegEncContext *s, int picture_number)
s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
init_put_bits(&s->pb, bit_buf[5], 3000, NULL, NULL);
s->block= s->blocks[next_block];
encode_mb(s, 0, 0);
d= get_bit_count(&s->pb);
if(d<dmin){
flush_put_bits(&s->pb);
dmin=d;
copy_context_after_encode(&best_s, s, MB_TYPE_BIDIR);
best=5;
next_block^=1;
}
encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_BIDIR, pb, pb2, tex_pb,
&dmin, &next_block, 0, 0);
}
if(mb_type&MB_TYPE_DIRECT){
copy_context_before_encode(s, &backup_s, MB_TYPE_DIRECT);
s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
s->mv_type = MV_TYPE_16X16; //FIXME
s->mb_intra= 0;
......@@ -1863,45 +1950,39 @@ static void encode_picture(MpegEncContext *s, int picture_number)
s->mv[0][0][1] = s->b_direct_forw_mv_table[xy][1];
s->mv[1][0][0] = s->b_direct_back_mv_table[xy][0];
s->mv[1][0][1] = s->b_direct_back_mv_table[xy][1];
init_put_bits(&s->pb, bit_buf[6], 3000, NULL, NULL);
s->block= s->blocks[next_block];
encode_mb(s, s->b_direct_mv_table[xy][0], s->b_direct_mv_table[xy][1]);
d= get_bit_count(&s->pb);
if(d<dmin){
flush_put_bits(&s->pb);
dmin=d;
copy_context_after_encode(&best_s, s, MB_TYPE_DIRECT);
best=6;
next_block^=1;
}
encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_DIRECT, pb, pb2, tex_pb,
&dmin, &next_block, s->b_direct_mv_table[xy][0], s->b_direct_mv_table[xy][1]);
}
if(mb_type&MB_TYPE_INTRA){
copy_context_before_encode(s, &backup_s, MB_TYPE_INTRA);
s->mv_dir = MV_DIR_FORWARD;
s->mv_type = MV_TYPE_16X16;
s->mb_intra= 1;
s->mv[0][0][0] = 0;
s->mv[0][0][1] = 0;
init_put_bits(&s->pb, bit_buf[0], 3000, NULL, NULL);
s->block= s->blocks[next_block];
encode_mb(s, 0, 0);
d= get_bit_count(&s->pb);
if(d<dmin){
flush_put_bits(&s->pb);
dmin=d;
copy_context_after_encode(&best_s, s, MB_TYPE_INTRA);
best=0;
next_block^=1;
}
encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_INTRA, pb, pb2, tex_pb,
&dmin, &next_block, 0, 0);
/* force cleaning of ac/dc pred stuff if needed ... */
if(s->h263_pred || s->h263_aic)
s->mbintra_table[mb_x + mb_y*s->mb_width]=1;
}
copy_context_after_encode(s, &best_s, -1);
copy_bits(&pb, bit_buf[best], dmin);
s->pb= pb;
pb_bits_count= get_bit_count(&s->pb);
flush_put_bits(&s->pb);
ff_copy_bits(&backup_s.pb, bit_buf[next_block^1], pb_bits_count);
s->pb= backup_s.pb;
if(s->data_partitioning){
pb2_bits_count= get_bit_count(&s->pb2);
flush_put_bits(&s->pb2);
ff_copy_bits(&backup_s.pb2, bit_buf2[next_block^1], pb2_bits_count);
s->pb2= backup_s.pb2;
tex_pb_bits_count= get_bit_count(&s->tex_pb);
flush_put_bits(&s->tex_pb);
ff_copy_bits(&backup_s.tex_pb, bit_buf_tex[next_block^1], tex_pb_bits_count);
s->tex_pb= backup_s.tex_pb;
}
s->last_bits= get_bit_count(&s->pb);
} else {
int motion_x, motion_y;
......@@ -1920,6 +2001,16 @@ static void encode_picture(MpegEncContext *s, int picture_number)
motion_x= s->mv[0][0][0] = s->p_mv_table[xy][0];
motion_y= s->mv[0][0][1] = s->p_mv_table[xy][1];
break;
case MB_TYPE_INTER4V:
s->mv_dir = MV_DIR_FORWARD;
s->mv_type = MV_TYPE_8X8;
s->mb_intra= 0;
for(i=0; i<4; i++){
s->mv[0][i][0] = s->motion_val[s->block_index[i]][0];
s->mv[0][i][1] = s->motion_val[s->block_index[i]][1];
}
motion_x= motion_y= 0;
break;
case MB_TYPE_DIRECT:
s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
s->mb_intra= 0;
......@@ -1966,6 +2057,7 @@ static void encode_picture(MpegEncContext *s, int picture_number)
}
MPV_decode_mb(s, s->block);
//printf("MB %d %d bits\n", s->mb_x+s->mb_y*s->mb_width, get_bit_count(&s->pb));
}
......@@ -1979,14 +2071,20 @@ static void encode_picture(MpegEncContext *s, int picture_number)
}
//fprintf(stderr, "\nMB line: %d\tSize: %u\tAvg. Size: %u", s->mb_y,
// (s->pb.buf_ptr - s->ptr_last_mb_line), s->mb_line_avgsize);
s->first_gob_line = 0;
if(s->codec_id!=CODEC_ID_MPEG4) s->first_slice_line = 0; //FIXME clean
}
}
emms_c();
if (s->h263_msmpeg4 && s->msmpeg4_version<4 && s->pict_type == I_TYPE)
if(s->codec_id==CODEC_ID_MPEG4 && s->data_partitioning && s->pict_type!=B_TYPE)
ff_mpeg4_merge_partitions(s);
if (s->msmpeg4_version && s->msmpeg4_version<4 && s->pict_type == I_TYPE)
msmpeg4_encode_ext_header(s);
if(s->codec_id==CODEC_ID_MPEG4)
ff_mpeg4_stuffing(&s->pb);
//if (s->gob_number)
// fprintf(stderr,"\nNumber of GOB: %d", s->gob_number);
......@@ -2011,7 +2109,7 @@ static int dct_quantize_c(MpegEncContext *s,
int bias;
int max=0;
unsigned int threshold1, threshold2;
av_fdct (block);
/* we need this permutation so that we correct the IDCT
......@@ -2240,6 +2338,119 @@ static void dct_unquantize_h263_c(MpegEncContext *s,
}
}
static void remove_ac(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, int mb_x, int mb_y)
{
int dc, dcb, dcr, y, i;
for(i=0; i<4; i++){
dc= s->dc_val[0][mb_x*2+1 + (i&1) + (mb_y*2+1 + (i>>1))*(s->mb_width*2+2)];
for(y=0; y<8; y++){
int x;
for(x=0; x<8; x++){
dest_y[x + (i&1)*8 + (y + (i>>1)*8)*s->linesize]= dc/8;
}
}
}
dcb = s->dc_val[1][mb_x+1 + (mb_y+1)*(s->mb_width+2)];
dcr= s->dc_val[2][mb_x+1 + (mb_y+1)*(s->mb_width+2)];
for(y=0; y<8; y++){
int x;
for(x=0; x<8; x++){
dest_cb[x + y*(s->linesize>>1)]= dcb/8;
dest_cr[x + y*(s->linesize>>1)]= dcr/8;
}
}
}
/**
* will conceal past errors, and allso drop b frames if needed
*
*/
void ff_conceal_past_errors(MpegEncContext *s, int unknown_pos)
{
int mb_x= s->mb_x;
int mb_y= s->mb_y;
int mb_dist=0;
int i, intra_count=0, inter_count=0;
int intra_conceal= s->msmpeg4_version ? 50 : 50; //FIXME finetune
int inter_conceal= s->msmpeg4_version ? 50 : 50;
// for last block
if(mb_x>=s->mb_width) mb_x= s->mb_width -1;
if(mb_y>=s->mb_height) mb_y= s->mb_height-1;
if(s->decoding_error==0 && unknown_pos){
if(s->data_partitioning && s->pict_type!=B_TYPE)
s->decoding_error= DECODING_AC_LOST;
else
s->decoding_error= DECODING_DESYNC;
}
if(s->decoding_error==DECODING_DESYNC && s->pict_type!=B_TYPE) s->next_p_frame_damaged=1;
for(i=mb_x + mb_y*s->mb_width; i>=0; i--){
if(s->mbintra_table[i]) intra_count++;
else inter_count++;
}
if(s->decoding_error==DECODING_AC_LOST){
intra_conceal*=2;
inter_conceal*=2;
}else if(s->decoding_error==DECODING_ACDC_LOST){
intra_conceal*=2;
inter_conceal*=2;
}
if(unknown_pos && (intra_count<inter_count)){
intra_conceal= inter_conceal= s->mb_num;
// printf("%d %d\n",intra_count, inter_count);
}
fprintf(stderr, "concealing errors\n");
/* for all MBs from the current one back until the last resync marker */
for(; mb_y>=0 && mb_y>=s->resync_mb_y; mb_y--){
for(; mb_x>=0; mb_x--){
uint8_t *dest_y = s->current_picture[0] + (mb_y * 16* s->linesize ) + mb_x * 16;
uint8_t *dest_cb = s->current_picture[1] + (mb_y * 8 * (s->linesize >> 1)) + mb_x * 8;
uint8_t *dest_cr = s->current_picture[2] + (mb_y * 8 * (s->linesize >> 1)) + mb_x * 8;
int mb_x_backup= s->mb_x; //FIXME pass xy to mpeg_motion
int mb_y_backup= s->mb_y;
s->mb_x=mb_x;
s->mb_y=mb_y;
if(s->mbintra_table[mb_y*s->mb_width + mb_x] && mb_dist<intra_conceal){
if(s->decoding_error==DECODING_AC_LOST){
remove_ac(s, dest_y, dest_cb, dest_cr, mb_x, mb_y);
// printf("remove ac to %d %d\n", mb_x, mb_y);
}else{
mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
s->last_picture, 0, 0, put_pixels_tab,
0/*mx*/, 0/*my*/, 16);
}
}
else if(!s->mbintra_table[mb_y*s->mb_width + mb_x] && mb_dist<inter_conceal){
int mx=0;
int my=0;
if(s->decoding_error!=DECODING_DESYNC){
int xy= mb_x*2+1 + (mb_y*2+1)*(s->mb_width*2+2);
mx= s->motion_val[ xy ][0];
my= s->motion_val[ xy ][1];
}
mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
s->last_picture, 0, 0, put_pixels_tab,
mx, my, 16);
}
s->mb_x= mb_x_backup;
s->mb_y= mb_y_backup;
if(mb_x== s->resync_mb_x && mb_y== s->resync_mb_y) return;
if(!s->mbskip_table[mb_x + mb_y*s->mb_width]) mb_dist++;
}
mb_x=s->mb_width-1;
}
}
AVCodec mpeg1video_encoder = {
"mpeg1video",
CODEC_TYPE_VIDEO,
......
libavcodec/mpegvideo.h
View file @ 7f2fe444
......@@ -37,6 +37,10 @@ enum OutputFormat {
#define MAX_MV 2048
#define REORDER_BUFFER_SIZE (FF_MAX_B_FRAMES+2)
#define ME_MAP_SIZE 64
#define ME_MAP_SHIFT 3
#define ME_MAP_MV_BITS 11
typedef struct Predictor{
double coeff;
double count;
......@@ -100,8 +104,12 @@ typedef struct MpegEncContext {
int force_input_type;/* 0= no force, otherwise I_TYPE, P_TYPE, ... */
int max_b_frames; /* max number of b-frames for encoding */
float b_quant_factor;/* qscale factor between ips and b frames */
float b_quant_offset;/* qscale offset between ips and b frames */
int rc_strategy;
int b_frame_strategy;
int luma_elim_threshold;
int chroma_elim_threshold;
int strict_std_compliance; /* strictly follow the std (MPEG4, ...) */
int workaround_bugs; /* workaround bugs in encoders which cannot be detected automatically */
/* the following fields are managed internally by the encoder */
......@@ -142,6 +150,9 @@ typedef struct MpegEncContext {
UINT8 *mbskip_table; /* used to avoid copy if macroblock skipped (for black regions for example)
and used for b-frame encoding & decoding (contains skip table of next P Frame) */
UINT8 *mbintra_table; /* used to avoid setting {ac, dc, cbp}-pred stuff to zero on inter MB decoding */
UINT8 *cbp_table; /* used to store cbp, ac_pred for partitioned decoding */
UINT8 *pred_dir_table; /* used to store pred_dir for partitioned decoding */
INT8 *qscale_table; /* used to store qscale for partitioned decoding (& postprocessing FIXME export) */
int input_qscale; /* qscale prior to reordering of frames */
int input_pict_type; /* pict_type prior to reordering of frames */
......@@ -159,7 +170,6 @@ typedef struct MpegEncContext {
int b_code; /* backward MV resolution for B Frames (mpeg4) */
INT16 (*motion_val)[2]; /* used for MV prediction (4MV per MB) */
INT16 (*p_mv_table)[2]; /* MV table (1MV per MB) p-frame encoding */
INT16 (*last_p_mv_table)[2]; /* MV table (1MV per MB) p-frame encoding */
INT16 (*b_forw_mv_table)[2]; /* MV table (1MV per MB) forward mode b-frame encoding */
INT16 (*b_back_mv_table)[2]; /* MV table (1MV per MB) backward mode b-frame encoding */
INT16 (*b_bidir_forw_mv_table)[2]; /* MV table (1MV per MB) bidir mode b-frame encoding */
......@@ -169,6 +179,10 @@ typedef struct MpegEncContext {
INT16 (*b_direct_mv_table)[2]; /* MV table (1MV per MB) direct mode b-frame encoding */
int me_method; /* ME algorithm */
uint8_t *me_scratchpad; /* data area for the me algo, so that the ME doesnt need to malloc/free */
uint32_t *me_map; /* map to avoid duplicate evaluations */
uint16_t *me_score_map; /* map to store the SADs */
int me_map_generation;
int skip_me; /* set if ME is skiped for the current MB */
int mv_dir;
#define MV_DIR_BACKWARD 1
#define MV_DIR_FORWARD 2
......@@ -201,12 +215,15 @@ typedef struct MpegEncContext {
int mb_x, mb_y;
int mb_incr;
int mb_intra;
UINT16 *mb_var; /* Table for MB variances */
UINT8 *mb_type; /* Table for MB type */
UINT16 *mb_var; /* Table for MB variances */
UINT16 *mc_mb_var; /* Table for motion compensated MB variances */
UINT8 *mb_type; /* Table for MB type */
#define MB_TYPE_INTRA 0x01
#define MB_TYPE_INTER 0x02
#define MB_TYPE_INTER4V 0x04
#define MB_TYPE_SKIPED 0x08
#define MB_TYPE_GMC 0x10
#define MB_TYPE_DIRECT 0x10
#define MB_TYPE_FORWARD 0x20
#define MB_TYPE_BACKWARD 0x40
......@@ -239,8 +256,8 @@ typedef struct MpegEncContext {
/* bit rate control */
int I_frame_bits; //FIXME used in mpeg12 ...
int avg_mb_var; /* average MB variance for current frame */
int mc_mb_var; /* motion compensated MB variance for current frame */
int mb_var_sum; /* sum of MB variance for current frame */
int mc_mb_var_sum; /* motion compensated MB variance for current frame */
int last_non_b_mc_mb_var;/* motion compensated MB variance for last non b frame */
INT64 wanted_bits;
INT64 total_bits;
......@@ -264,11 +281,24 @@ typedef struct MpegEncContext {
int skip_count;
int misc_bits; // cbp, mb_type
int last_bits; //temp var used for calculating the above vars
/* error concealment / resync */
int resync_mb_x; /* x position of last resync marker */
int resync_mb_y; /* y position of last resync marker */
int mb_num_left; /* number of MBs left in this video packet */
GetBitContext next_resync_gb; /* starts at the next resync marker */
int next_resync_qscale; /* qscale of next resync marker */
int next_resync_pos; /* bitstream position of next resync marker */
#define DECODING_AC_LOST -1
#define DECODING_ACDC_LOST -2
#define DECODING_DESYNC -3
int decoding_error;
int next_p_frame_damaged; /* set if the next p frame is damaged, to avoid showing trashed b frames */
int error_resilience;
/* H.263 specific */
int gob_number;
int gob_index;
int first_gob_line;
/* H.263+ specific */
int umvplus;
......@@ -306,12 +336,17 @@ typedef struct MpegEncContext {
int aspect_ratio_info;
int sprite_warping_accuracy;
int low_latency_sprite;
int data_partioning;
int resync_marker;
int resync_x_pos;
int data_partitioning;
int rvlc; /* reversible vlc */
int resync_marker; /* could this stream contain resync markers*/
int low_delay; /* no reordering needed / has no b-frames */
int vo_type;
int vol_control_parameters; /* does the stream contain the low_delay flag, used to workaround buggy encoders */
PutBitContext tex_pb; /* used for data partitioned VOPs */
PutBitContext pb2; /* used for data partitioned VOPs */
#define PB_BUFFER_SIZE 1024*256
uint8_t *tex_pb_buffer;
uint8_t *pb2_buffer;
/* divx specific, used to workaround (many) bugs in divx5 */
int divx_version;
......@@ -341,7 +376,6 @@ typedef struct MpegEncContext {
int slice_height; /* in macroblocks */
int first_slice_line; /* used in mpeg4 too to handle resync markers */
int flipflop_rounding;
int bitrate;
int msmpeg4_version; /* 0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 */
/* decompression specific */
GetBitContext gb;
......@@ -402,6 +436,9 @@ void MPV_common_init_mmx(MpegEncContext *s);
#endif
int (*dct_quantize)(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow);
void (*draw_edges)(UINT8 *buf, int wrap, int width, int height, int w);
void ff_conceal_past_errors(MpegEncContext *s, int conceal_all);
void ff_copy_bits(PutBitContext *pb, UINT8 *src, int length);
void ff_clean_intra_table_entries(MpegEncContext *s);
/* motion_est.c */
void ff_estimate_p_frame_motion(MpegEncContext * s,
......@@ -479,6 +516,13 @@ int intel_h263_decode_picture_header(MpegEncContext *s);
int h263_decode_mb(MpegEncContext *s,
DCTELEM block[6][64]);
int h263_get_picture_format(int width, int height);
int ff_mpeg4_decode_video_packet_header(MpegEncContext *s);
int ff_mpeg4_resync(MpegEncContext *s);
void ff_mpeg4_encode_video_packet_header(MpegEncContext *s);
void ff_mpeg4_clean_buffers(MpegEncContext *s);
void ff_mpeg4_stuffing(PutBitContext * pbc);
void ff_mpeg4_init_partitions(MpegEncContext *s);
void ff_mpeg4_merge_partitions(MpegEncContext *s);
/* rv10.c */
void rv10_encode_picture_header(MpegEncContext *s, int picture_number);
......
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