v->overlap = get_bits1(gb); //common
- v->s.resync_marker = get_bits1(gb);
+ v->resync_marker = get_bits1(gb);
v->rangered = get_bits1(gb);
if (v->rangered && v->profile == PROFILE_SIMPLE) {
av_log(avctx, AV_LOG_INFO,
"DQuant=%i, Quantizer mode=%i, Max B frames=%i\n",
v->profile, v->frmrtq_postproc, v->bitrtq_postproc,
v->s.loop_filter, v->multires, v->fastuvmc, v->extended_mv,
- v->rangered, v->vstransform, v->overlap, v->s.resync_marker,
+ v->rangered, v->vstransform, v->overlap, v->resync_marker,
v->dquant, v->quantizer_mode, avctx->max_b_frames);
return 0;
}
}
/* fill lookup tables for intensity compensation */
-#define INIT_LUT(lumscale, lumshift, luty, lutuv) do { \
+#define INIT_LUT(lumscale, lumshift, luty, lutuv, chain) do { \
int scale, shift, i; \
if (!lumscale) { \
scale = -64; \
shift = lumshift << 6; \
} \
for (i = 0; i < 256; i++) { \
- luty[i] = av_clip_uint8((scale * i + shift + 32) >> 6); \
- lutuv[i] = av_clip_uint8((scale * (i - 128) + 128*64 + 32) >> 6); \
+ int iy = chain ? luty[i] : i; \
+ int iu = chain ? lutuv[i] : i; \
+ luty[i] = av_clip_uint8((scale * iy + shift + 32) >> 6); \
+ lutuv[i] = av_clip_uint8((scale * (iu - 128) + 128*64 + 32) >> 6);\
} \
} while(0)
+static void rotate_luts(VC1Context *v)
+{
+#define ROTATE(DEF, L, N, C, A) do { \
+ if (v->s.pict_type == AV_PICTURE_TYPE_BI || v->s.pict_type == AV_PICTURE_TYPE_B) { \
+ C = A; \
+ } else { \
+ DEF; \
+ memcpy(&tmp, &L , sizeof(tmp)); \
+ memcpy(&L , &N , sizeof(tmp)); \
+ memcpy(&N , &tmp, sizeof(tmp)); \
+ C = N; \
+ } \
+ } while(0)
+
+ ROTATE(int tmp, v->last_use_ic, v->next_use_ic, v->curr_use_ic, v->aux_use_ic);
+ ROTATE(uint8_t tmp[2][256], v->last_luty, v->next_luty, v->curr_luty, v->aux_luty);
+ ROTATE(uint8_t tmp[2][256], v->last_lutuv, v->next_lutuv, v->curr_lutuv, v->aux_lutuv);
+
+ INIT_LUT(32, 0, v->curr_luty[0], v->curr_lutuv[0], 0);
+ INIT_LUT(32, 0, v->curr_luty[1], v->curr_lutuv[1], 0);
+ v->curr_use_ic = 0;
+ if (v->curr_luty == v->next_luty) {
+ // If we just initialized next_lut, clear next_use_ic to match.
+ v->next_use_ic = 0;
+ }
+}
+
int ff_vc1_parse_frame_header(VC1Context *v, GetBitContext* gb)
{
int pqindex, lowquant, status;
(v->s.pict_type == AV_PICTURE_TYPE_P) ? 'P' : ((v->s.pict_type == AV_PICTURE_TYPE_I) ? 'I' : 'B'),
pqindex, v->pq, v->halfpq, v->rangeredfrm);
- if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_P)
- v->use_ic = 0;
+ if (v->first_pic_header_flag)
+ rotate_luts(v);
switch (v->s.pict_type) {
case AV_PICTURE_TYPE_P:
v->mv_mode2 = ff_vc1_mv_pmode_table2[lowquant][get_unary(gb, 1, 3)];
v->lumscale = get_bits(gb, 6);
v->lumshift = get_bits(gb, 6);
- v->use_ic = 1;
+ v->last_use_ic = 1;
/* fill lookup tables for intensity compensation */
- INIT_LUT(v->lumscale, v->lumshift, v->luty, v->lutuv);
+ INIT_LUT(v->lumscale, v->lumshift, v->last_luty[0], v->last_lutuv[0], 1);
+ INIT_LUT(v->lumscale, v->lumshift, v->last_luty[1], v->last_lutuv[1], 1);
}
v->qs_last = v->s.quarter_sample;
if (v->mv_mode == MV_PMODE_1MV_HPEL || v->mv_mode == MV_PMODE_1MV_HPEL_BILIN)
if (fcm) {
if (fcm == ILACE_FIELD)
field_mode = 1;
- if (!v->warn_interlaced++)
- av_log(v->s.avctx, AV_LOG_ERROR,
- "Interlaced frames/fields support is incomplete\n");
}
} else {
fcm = PROGRESSIVE;
v->fcm = fcm;
if (v->field_mode) {
+ v->s.mb_height = FFALIGN(v->s.height + 15 >> 4, 2);
v->fptype = get_bits(gb, 3);
v->s.pict_type = (v->fptype & 2) ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;
if (v->fptype & 4) // B-picture
v->s.pict_type = (v->fptype & 2) ? AV_PICTURE_TYPE_BI : AV_PICTURE_TYPE_B;
} else {
+ v->s.mb_height = v->s.height + 15 >> 4;
switch (get_unary(gb, 0, 4)) {
case 0:
v->s.pict_type = AV_PICTURE_TYPE_P;
if (v->postprocflag)
v->postproc = get_bits(gb, 2);
- if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_P)
- v->use_ic = 0;
-
if (v->parse_only)
return 0;
+ if (v->first_pic_header_flag)
+ rotate_luts(v);
+
switch (v->s.pict_type) {
case AV_PICTURE_TYPE_I:
case AV_PICTURE_TYPE_BI:
v->reffield = get_bits1(gb);
v->ref_field_type[0] = v->reffield ^ !v->cur_field_type;
}
+ } else {
+ v->numref = 0;
}
if (v->extended_mv)
v->mvrange = get_unary(gb, 0, 3);
if (v->intcomp) {
v->lumscale = get_bits(gb, 6);
v->lumshift = get_bits(gb, 6);
- INIT_LUT(v->lumscale, v->lumshift, v->luty, v->lutuv);
+ INIT_LUT(v->lumscale, v->lumshift, v->last_luty[0], v->last_lutuv[0], 1);
+ INIT_LUT(v->lumscale, v->lumshift, v->last_luty[1], v->last_lutuv[1], 1);
+ v->last_use_ic = 1;
}
status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
av_log(v->s.avctx, AV_LOG_DEBUG, "SKIPMB plane encoding: "
int mvmode2;
mvmode2 = get_unary(gb, 1, 3);
v->mv_mode2 = ff_vc1_mv_pmode_table2[lowquant][mvmode2];
- if (v->field_mode)
- v->intcompfield = decode210(gb);
- v->lumscale = get_bits(gb, 6);
- v->lumshift = get_bits(gb, 6);
- INIT_LUT(v->lumscale, v->lumshift, v->luty, v->lutuv);
- if ((v->field_mode) && !v->intcompfield) {
+ if (v->field_mode) {
+ v->intcompfield = decode210(gb) ^ 3;
+ } else
+ v->intcompfield = 3;
+
+ v->lumscale2 = v->lumscale = 32;
+ v->lumshift2 = v->lumshift = 0;
+ if (v->intcompfield & 1) {
+ v->lumscale = get_bits(gb, 6);
+ v->lumshift = get_bits(gb, 6);
+ }
+ if ((v->intcompfield & 2) && v->field_mode) {
v->lumscale2 = get_bits(gb, 6);
v->lumshift2 = get_bits(gb, 6);
- INIT_LUT(v->lumscale2, v->lumshift2, v->luty2, v->lutuv2);
+ } else if(!v->field_mode) {
+ v->lumscale2 = v->lumscale;
+ v->lumshift2 = v->lumshift;
+ }
+ if (v->field_mode && v->second_field) {
+ if (v->cur_field_type) {
+ INIT_LUT(v->lumscale , v->lumshift , v->curr_luty[v->cur_field_type^1], v->curr_lutuv[v->cur_field_type^1], 0);
+ INIT_LUT(v->lumscale2, v->lumshift2, v->last_luty[v->cur_field_type ], v->last_lutuv[v->cur_field_type ], 1);
+ } else {
+ INIT_LUT(v->lumscale2, v->lumshift2, v->curr_luty[v->cur_field_type^1], v->curr_lutuv[v->cur_field_type^1], 0);
+ INIT_LUT(v->lumscale , v->lumshift , v->last_luty[v->cur_field_type ], v->last_lutuv[v->cur_field_type ], 1);
+ }
+ v->next_use_ic = v->curr_use_ic = 1;
+ } else {
+ INIT_LUT(v->lumscale , v->lumshift , v->last_luty[0], v->last_lutuv[0], 1);
+ INIT_LUT(v->lumscale2, v->lumshift2, v->last_luty[1], v->last_lutuv[1], 1);
}
- v->use_ic = 1;
+ v->last_use_ic = 1;
}
v->qs_last = v->s.quarter_sample;
if (v->mv_mode == MV_PMODE_1MV_HPEL || v->mv_mode == MV_PMODE_1MV_HPEL_BILIN)
projects / ffmpeg / blobdiff