static int rv10_decode_packet(AVCodecContext *avctx,
const uint8_t *buf, int buf_size)
{
MpegEncContext *s = avctx->priv_data;
int mb_count, mb_pos, left, start_mb_x;
init_get_bits(&s->gb, buf, buf_size*8);
if(s->codec_id ==CODEC_ID_RV10)
mb_count = rv10_decode_picture_header(s);
else
mb_count = rv20_decode_picture_header(s);
if (mb_count < 0) {
av_log(s->avctx, AV_LOG_ERROR, "HEADER ERROR\n");
return -1;
}
if (s->mb_x >= s->mb_width ||
s->mb_y >= s->mb_height) {
av_log(s->avctx, AV_LOG_ERROR, "POS ERROR %d %d\n", s->mb_x, s->mb_y);
return -1;
}
mb_pos = s->mb_y * s->mb_width + s->mb_x;
left = s->mb_width * s->mb_height - mb_pos;
if (mb_count > left) {
av_log(s->avctx, AV_LOG_ERROR, "COUNT ERROR\n");
return -1;
}
//if(s->pict_type == FF_P_TYPE) return 0;
if ((s->mb_x == 0 && s->mb_y == 0) || s->current_picture_ptr==NULL) {
if(s->current_picture_ptr){ //FIXME write parser so we always have complete frames?
ff_er_frame_end(s);
MPV_frame_end(s);
s->mb_x= s->mb_y = s->resync_mb_x = s->resync_mb_y= 0;
}
if(MPV_frame_start(s, avctx) < 0)
return -1;
ff_er_frame_start(s);
}
#ifdef DEBUG
av_log(avctx, AV_LOG_DEBUG, "qscale=%d\n", s->qscale);
#endif
/* default quantization values */
if(s->codec_id== CODEC_ID_RV10){
if(s->mb_y==0) s->first_slice_line=1;
}else{
s->first_slice_line=1;
s->resync_mb_x= s->mb_x;
}
start_mb_x= s->mb_x;
s->resync_mb_y= s->mb_y;
if(s->h263_aic){
s->y_dc_scale_table=
s->c_dc_scale_table= ff_aic_dc_scale_table;
}else{
s->y_dc_scale_table=
s->c_dc_scale_table= ff_mpeg1_dc_scale_table;
}
if(s->modified_quant)
s->chroma_qscale_table= ff_h263_chroma_qscale_table;
ff_set_qscale(s, s->qscale);
s->rv10_first_dc_coded[0] = 0;
s->rv10_first_dc_coded[1] = 0;
s->rv10_first_dc_coded[2] = 0;
//printf("%d %X %X\n", s->pict_type, s->current_picture.motion_val[0], s->current_picture.motion_val[1]);
s->block_wrap[0]=
s->block_wrap[1]=
s->block_wrap[2]=
s->block_wrap[3]= s->b8_stride;
s->block_wrap[4]=
s->block_wrap[5]= s->mb_stride;
ff_init_block_index(s);
/* decode each macroblock */
for(s->mb_num_left= mb_count; s->mb_num_left>0; s->mb_num_left--) {
int ret;
ff_update_block_index(s);
#ifdef DEBUG
av_log(avctx, AV_LOG_DEBUG, "**mb x=%d y=%d\n", s->mb_x, s->mb_y);
#endif
s->mv_dir = MV_DIR_FORWARD;
s->mv_type = MV_TYPE_16X16;
ret=ff_h263_decode_mb(s, s->block);
if (ret == SLICE_ERROR || s->gb.size_in_bits < get_bits_count(&s->gb)) {
av_log(s->avctx, AV_LOG_ERROR, "ERROR at MB %d %d\n", s->mb_x, s->mb_y);
return -1;
}
if(s->pict_type != FF_B_TYPE)
ff_h263_update_motion_val(s);
MPV_decode_mb(s, s->block);
if(s->loop_filter)
ff_h263_loop_filter(s);
if (++s->mb_x == s->mb_width) {
s->mb_x = 0;
s->mb_y++;
ff_init_block_index(s);
}
if(s->mb_x == s->resync_mb_x)
s->first_slice_line=0;
if(ret == SLICE_END) break;
}
ff_er_add_slice(s, start_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, AC_END|DC_END|MV_END);
return buf_size;
}
static int rv10_decode_packet(AVCodecContext *avctx,
uint8_t *buf, int buf_size)
{
MpegEncContext *s = avctx->priv_data;
int i, mb_count, mb_pos, left;
init_get_bits(&s->gb, buf, buf_size*8);
mb_count = rv10_decode_picture_header(s);
if (mb_count < 0) {
fprintf(stderr, "HEADER ERROR\n");
return -1;
}
if (s->mb_x >= s->mb_width ||
s->mb_y >= s->mb_height) {
fprintf(stderr, "POS ERROR %d %d\n", s->mb_x, s->mb_y);
return -1;
}
mb_pos = s->mb_y * s->mb_width + s->mb_x;
left = s->mb_width * s->mb_height - mb_pos;
if (mb_count > left) {
fprintf(stderr, "COUNT ERROR\n");
return -1;
}
if (s->mb_x == 0 && s->mb_y == 0) {
if(MPV_frame_start(s, avctx) < 0)
return -1;
}
#ifdef DEBUG
printf("qscale=%d\n", s->qscale);
#endif
/* default quantization values */
s->y_dc_scale = 8;
s->c_dc_scale = 8;
s->rv10_first_dc_coded[0] = 0;
s->rv10_first_dc_coded[1] = 0;
s->rv10_first_dc_coded[2] = 0;
if(s->mb_y==0) s->first_slice_line=1;
s->block_wrap[0]=
s->block_wrap[1]=
s->block_wrap[2]=
s->block_wrap[3]= s->mb_width*2 + 2;
s->block_wrap[4]=
s->block_wrap[5]= s->mb_width + 2;
ff_init_block_index(s);
/* decode each macroblock */
for(i=0;i<mb_count;i++) {
ff_update_block_index(s);
#ifdef DEBUG
printf("**mb x=%d y=%d\n", s->mb_x, s->mb_y);
#endif
s->dsp.clear_blocks(s->block[0]);
s->mv_dir = MV_DIR_FORWARD;
s->mv_type = MV_TYPE_16X16;
if (ff_h263_decode_mb(s, s->block) == SLICE_ERROR) {
fprintf(stderr, "ERROR at MB %d %d\n", s->mb_x, s->mb_y);
return -1;
}
ff_h263_update_motion_val(s);
MPV_decode_mb(s, s->block);
if (++s->mb_x == s->mb_width) {
s->mb_x = 0;
s->mb_y++;
ff_init_block_index(s);
s->first_slice_line=0;
}
}
return buf_size;
}