#define CABAC 1
+#include "config.h"
+#include "cabac.h"
+#include "cabac_functions.h"
#include "internal.h"
#include "dsputil.h"
#include "avcodec.h"
#include "h264_mvpred.h"
#include "golomb.h"
-#include "cabac.h"
#if ARCH_X86
#include "x86/h264_i386.h"
#endif
return base_ctx[cat] + ctx;
}
-DECLARE_ASM_CONST(1, uint8_t, last_coeff_flag_offset_8x8)[63] = {
- 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4,
- 5, 5, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8
-};
-
-static av_always_inline void decode_cabac_residual_internal( H264Context *h, DCTELEM *block, int cat, int n, const uint8_t *scantable, const uint32_t *qmul, int max_coeff, int is_dc ) {
+static av_always_inline void
+decode_cabac_residual_internal(H264Context *h, DCTELEM *block,
+ int cat, int n, const uint8_t *scantable,
+ const uint32_t *qmul, int max_coeff,
+ int is_dc, int chroma422)
+{
static const int significant_coeff_flag_offset[2][14] = {
{ 105+0, 105+15, 105+29, 105+44, 105+47, 402, 484+0, 484+15, 484+29, 660, 528+0, 528+15, 528+29, 718 },
{ 277+0, 277+15, 277+29, 277+44, 277+47, 436, 776+0, 776+15, 776+29, 675, 820+0, 820+15, 820+29, 733 }
9, 9,10,10, 8,11,12,11, 9, 9,10,10, 8,13,13, 9,
9,10,10, 8,13,13, 9, 9,10,10,14,14,14,14,14 }
};
+ static const uint8_t sig_coeff_offset_dc[7] = { 0, 0, 1, 1, 2, 2, 2 };
/* node ctx: 0..3: abslevel1 (with abslevelgt1 == 0).
* 4..7: abslevelgt1 + 3 (and abslevel1 doesn't matter).
* map node ctx => cabac ctx for level=1 */
static const uint8_t coeff_abs_level1_ctx[8] = { 1, 2, 3, 4, 0, 0, 0, 0 };
/* map node ctx => cabac ctx for level>1 */
- static const uint8_t coeff_abs_levelgt1_ctx[8] = { 5, 5, 5, 5, 6, 7, 8, 9 };
+ static const uint8_t coeff_abs_levelgt1_ctx[2][8] = {
+ { 5, 5, 5, 5, 6, 7, 8, 9 },
+ { 5, 5, 5, 5, 6, 7, 8, 8 }, // 422/dc case
+ };
static const uint8_t coeff_abs_level_transition[2][8] = {
/* update node ctx after decoding a level=1 */
{ 1, 2, 3, 3, 4, 5, 6, 7 },
cc.range = h->cabac.range;
cc.low = h->cabac.low;
cc.bytestream= h->cabac.bytestream;
+ cc.bytestream_end = h->cabac.bytestream_end;
#else
#define CC &h->cabac
#endif
index[coeff_count++] = last;\
}
const uint8_t *sig_off = significant_coeff_flag_offset_8x8[MB_FIELD];
-#if ARCH_X86 && HAVE_7REGS && HAVE_EBX_AVAILABLE && !defined(BROKEN_RELOCATIONS)
- coeff_count= decode_significance_8x8_x86(CC, significant_coeff_ctx_base, index,
+#ifdef decode_significance
+ coeff_count = decode_significance_8x8(CC, significant_coeff_ctx_base, index,
last_coeff_ctx_base, sig_off);
} else {
- coeff_count= decode_significance_x86(CC, max_coeff, significant_coeff_ctx_base, index,
- last_coeff_ctx_base-significant_coeff_ctx_base);
+ if (is_dc && chroma422) { // dc 422
+ DECODE_SIGNIFICANCE(7, sig_coeff_offset_dc[last], sig_coeff_offset_dc[last]);
+ } else {
+ coeff_count = decode_significance(CC, max_coeff, significant_coeff_ctx_base, index,
+ last_coeff_ctx_base-significant_coeff_ctx_base);
+ }
#else
- DECODE_SIGNIFICANCE( 63, sig_off[last], last_coeff_flag_offset_8x8[last] );
+ DECODE_SIGNIFICANCE( 63, sig_off[last], ff_h264_last_coeff_flag_offset_8x8[last] );
} else {
- DECODE_SIGNIFICANCE( max_coeff - 1, last, last );
+ if (is_dc && chroma422) { // dc 422
+ DECODE_SIGNIFICANCE(7, sig_coeff_offset_dc[last], sig_coeff_offset_dc[last]);
+ } else {
+ DECODE_SIGNIFICANCE(max_coeff - 1, last, last);
+ }
#endif
}
assert(coeff_count > 0);
} \
} else { \
int coeff_abs = 2; \
- ctx = coeff_abs_levelgt1_ctx[node_ctx] + abs_level_m1_ctx_base; \
+ ctx = coeff_abs_levelgt1_ctx[is_dc && chroma422][node_ctx] + abs_level_m1_ctx_base; \
node_ctx = coeff_abs_level_transition[1][node_ctx]; \
\
while( coeff_abs < 15 && get_cabac( CC, ctx ) ) { \
}
static void decode_cabac_residual_dc_internal( H264Context *h, DCTELEM *block, int cat, int n, const uint8_t *scantable, int max_coeff ) {
- decode_cabac_residual_internal(h, block, cat, n, scantable, NULL, max_coeff, 1);
+ decode_cabac_residual_internal(h, block, cat, n, scantable, NULL, max_coeff, 1, 0);
+}
+
+static void decode_cabac_residual_dc_internal_422(H264Context *h, DCTELEM *block,
+ int cat, int n, const uint8_t *scantable,
+ int max_coeff)
+{
+ decode_cabac_residual_internal(h, block, cat, n, scantable, NULL, max_coeff, 1, 1);
}
static void decode_cabac_residual_nondc_internal( H264Context *h, DCTELEM *block, int cat, int n, const uint8_t *scantable, const uint32_t *qmul, int max_coeff ) {
- decode_cabac_residual_internal(h, block, cat, n, scantable, qmul, max_coeff, 0);
+ decode_cabac_residual_internal(h, block, cat, n, scantable, qmul, max_coeff, 0, 0);
}
/* cat: 0-> DC 16x16 n = 0
decode_cabac_residual_dc_internal( h, block, cat, n, scantable, max_coeff );
}
+static av_always_inline void
+decode_cabac_residual_dc_422(H264Context *h, DCTELEM *block,
+ int cat, int n, const uint8_t *scantable,
+ int max_coeff)
+{
+ /* read coded block flag */
+ if (get_cabac(&h->cabac, &h->cabac_state[get_cabac_cbf_ctx(h, cat, n, max_coeff, 1)]) == 0) {
+ h->non_zero_count_cache[scan8[n]] = 0;
+ return;
+ }
+ decode_cabac_residual_dc_internal_422(h, block, cat, n, scantable, max_coeff);
+}
+
static av_always_inline void decode_cabac_residual_nondc( H264Context *h, DCTELEM *block, int cat, int n, const uint8_t *scantable, const uint32_t *qmul, int max_coeff ) {
/* read coded block flag */
if( (cat != 5 || CHROMA444) && get_cabac( &h->cabac, &h->cabac_state[get_cabac_cbf_ctx( h, cat, n, max_coeff, 0 ) ] ) == 0 ) {
}
/**
- * decodes a macroblock
- * @return 0 if OK, AC_ERROR / DC_ERROR / MV_ERROR if an error is noticed
+ * Decode a macroblock.
+ * @return 0 if OK, ER_AC_ERROR / ER_DC_ERROR / ER_MV_ERROR if an error is noticed
*/
int ff_h264_decode_mb_cabac(H264Context *h) {
MpegEncContext * const s = &h->s;
h->slice_table[ mb_xy ]= h->slice_num;
if(IS_INTRA_PCM(mb_type)) {
- static const uint16_t mb_sizes[4] = {256,384,512,768};
- const int mb_size = mb_sizes[h->sps.chroma_format_idc]*h->sps.bit_depth_luma >> 3;
+ const int mb_size = ff_h264_mb_sizes[h->sps.chroma_format_idc] *
+ h->sps.bit_depth_luma >> 3;
const uint8_t *ptr;
// We assume these blocks are very rare so we do not optimize it.
}
// The pixels are stored in the same order as levels in h->mb array.
+ if ((int) (h->cabac.bytestream_end - ptr) < mb_size)
+ return -1;
memcpy(h->mb, ptr, mb_size); ptr+=mb_size;
ff_init_cabac_decoder(&h->cabac, ptr, h->cabac.bytestream_end - ptr);
write_back_intra_pred_mode(h);
if( ff_h264_check_intra4x4_pred_mode(h) < 0 ) return -1;
} else {
- h->intra16x16_pred_mode= ff_h264_check_intra_pred_mode( h, h->intra16x16_pred_mode );
+ h->intra16x16_pred_mode= ff_h264_check_intra_pred_mode( h, h->intra16x16_pred_mode, 0 );
if( h->intra16x16_pred_mode < 0 ) return -1;
}
if(decode_chroma){
h->chroma_pred_mode_table[mb_xy] =
pred_mode = decode_cabac_mb_chroma_pre_mode( h );
- pred_mode= ff_h264_check_intra_pred_mode( h, pred_mode );
+ pred_mode= ff_h264_check_intra_pred_mode( h, pred_mode, 1 );
if( pred_mode < 0 ) return -1;
h->chroma_pred_mode= pred_mode;
} else {
if(CHROMA444){
decode_cabac_luma_residual(h, scan, scan8x8, pixel_shift, mb_type, cbp, 1);
decode_cabac_luma_residual(h, scan, scan8x8, pixel_shift, mb_type, cbp, 2);
- } else {
+ } else if (CHROMA422) {
+ if( cbp&0x30 ){
+ int c;
+ for( c = 0; c < 2; c++ ) {
+ //av_log( s->avctx, AV_LOG_ERROR, "INTRA C%d-DC\n",c );
+ decode_cabac_residual_dc_422(h, h->mb + ((256 + 16*16*c) << pixel_shift), 3,
+ CHROMA_DC_BLOCK_INDEX + c,
+ chroma422_dc_scan, 8);
+ }
+ }
+
+ if( cbp&0x20 ) {
+ int c, i, i8x8;
+ for( c = 0; c < 2; c++ ) {
+ DCTELEM *mb = h->mb + (16*(16 + 16*c) << pixel_shift);
+ qmul = h->dequant4_coeff[c+1+(IS_INTRA( mb_type ) ? 0:3)][h->chroma_qp[c]];
+ for (i8x8 = 0; i8x8 < 2; i8x8++) {
+ for (i = 0; i < 4; i++) {
+ const int index = 16 + 16 * c + 8*i8x8 + i;
+ //av_log(s->avctx, AV_LOG_ERROR, "INTRA C%d-AC %d\n",c, index - 16);
+ decode_cabac_residual_nondc(h, mb, 4, index, scan + 1, qmul, 15);
+ mb += 16<<pixel_shift;
+ }
+ }
+ }
+ } else {
+ fill_rectangle(&h->non_zero_count_cache[scan8[16]], 4, 4, 8, 0, 1);
+ fill_rectangle(&h->non_zero_count_cache[scan8[32]], 4, 4, 8, 0, 1);
+ }
+ } else /* yuv420 */ {
if( cbp&0x30 ){
int c;
for( c = 0; c < 2; c++ ) {
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