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vp10: move coding of tx_mode element to the non-arithcoded header.

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See issue 1040 point 3.

Change-Id: If051b92c24a34d6a39861fb7d7180c5ca32f3d82
This commit is contained in:
Ronald S. Bultje 2015-09-08 14:33:17 -04:00
parent a3df343cda
commit 00a203b7bc
2 changed files with 41 additions and 6 deletions
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16
vp10/decoder/decodeframe.c
View File

@ -81,12 +81,18 @@ static int decode_unsigned_max(struct vpx_read_bit_buffer *rb, int max) {
return data > max ? max : data;
}
#if CONFIG_MISC_FIXES
static TX_MODE read_tx_mode(struct vpx_read_bit_buffer *rb) {
return vpx_rb_read_bit(rb) ? TX_MODE_SELECT : vpx_rb_read_literal(rb, 2);
}
#else
static TX_MODE read_tx_mode(vpx_reader *r) {
TX_MODE tx_mode = vpx_read_literal(r, 2);
if (tx_mode == ALLOW_32X32)
tx_mode += vpx_read_bit(r);
return tx_mode;
}
#endif
static void read_tx_mode_probs(struct tx_probs *tx_probs, vpx_reader *r) {
int i, j;
@ -1787,6 +1793,9 @@ static void read_bitdepth_colorspace_sampling(
static size_t read_uncompressed_header(VP10Decoder *pbi,
struct vpx_read_bit_buffer *rb) {
VP10_COMMON *const cm = &pbi->common;
#if CONFIG_MISC_FIXES
MACROBLOCKD *const xd = &pbi->mb;
#endif
BufferPool *const pool = cm->buffer_pool;
RefCntBuffer *const frame_bufs = pool->frame_bufs;
int i, mask, ref_index = 0;
@ -2011,6 +2020,9 @@ static size_t read_uncompressed_header(VP10Decoder *pbi,
setup_quantization(cm, &pbi->mb, rb);
setup_segmentation(cm, rb);
setup_segmentation_dequant(cm);
#if CONFIG_MISC_FIXES
cm->tx_mode = xd->lossless ? ONLY_4X4 : read_tx_mode(rb);
#endif
setup_tile_info(cm, rb);
sz = vpx_rb_read_literal(rb, 16);
@ -2025,7 +2037,9 @@ static size_t read_uncompressed_header(VP10Decoder *pbi,
static int read_compressed_header(VP10Decoder *pbi, const uint8_t *data,
size_t partition_size) {
VP10_COMMON *const cm = &pbi->common;
#if !CONFIG_MISC_FIXES
MACROBLOCKD *const xd = &pbi->mb;
#endif
FRAME_CONTEXT *const fc = cm->fc;
vpx_reader r;
int k;
@ -2035,7 +2049,9 @@ static int read_compressed_header(VP10Decoder *pbi, const uint8_t *data,
vpx_internal_error(&cm->error, VPX_CODEC_MEM_ERROR,
"Failed to allocate bool decoder 0");
#if !CONFIG_MISC_FIXES
cm->tx_mode = xd->lossless ? ONLY_4X4 : read_tx_mode(&r);
#endif
if (cm->tx_mode == TX_MODE_SELECT)
read_tx_mode_probs(&fc->tx_probs, &r);
read_coef_probs(fc, cm->tx_mode, &r);

31
vp10/encoder/bitstream.c
View File

@ -818,14 +818,25 @@ static void encode_segmentation(VP10_COMMON *cm, MACROBLOCKD *xd,
}
}
static void encode_txfm_probs(VP10_COMMON *cm, vpx_writer *w,
#if CONFIG_MISC_FIXES
static void write_txfm_mode(TX_MODE mode, struct vpx_write_bit_buffer *wb) {
vpx_wb_write_bit(wb, mode == TX_MODE_SELECT);
if (mode != TX_MODE_SELECT)
vpx_wb_write_literal(wb, mode, 2);
}
#endif
static void update_txfm_probs(VP10_COMMON *cm, vpx_writer *w,
FRAME_COUNTS *counts) {
#if !CONFIG_MISC_FIXES
// Mode
vpx_write_literal(w, VPXMIN(cm->tx_mode, ALLOW_32X32), 2);
if (cm->tx_mode >= ALLOW_32X32)
vpx_write_bit(w, cm->tx_mode == TX_MODE_SELECT);
// Probabilities
#endif
if (cm->tx_mode == TX_MODE_SELECT) {
int i, j;
unsigned int ct_8x8p[TX_SIZES - 3][2];
@ -1154,24 +1165,32 @@ static void write_uncompressed_header(VP10_COMP *cpi,
encode_loopfilter(&cm->lf, wb);
encode_quantization(cm, wb);
encode_segmentation(cm, xd, wb);
#if CONFIG_MISC_FIXES
if (xd->lossless)
cm->tx_mode = TX_4X4;
else
write_txfm_mode(cm->tx_mode, wb);
#endif
write_tile_info(cm, wb);
}
static size_t write_compressed_header(VP10_COMP *cpi, uint8_t *data) {
VP10_COMMON *const cm = &cpi->common;
MACROBLOCKD *const xd = &cpi->td.mb.e_mbd;
FRAME_CONTEXT *const fc = cm->fc;
FRAME_COUNTS *counts = cpi->td.counts;
vpx_writer header_bc;
vpx_start_encode(&header_bc, data);
if (xd->lossless)
cm->tx_mode = ONLY_4X4;
#if !CONFIG_MISC_FIXES
if (cpi->td.mb.e_mbd.lossless)
cm->tx_mode = TX_4X4;
else
encode_txfm_probs(cm, &header_bc, counts);
update_txfm_probs(cm, &header_bc, counts);
#else
update_txfm_probs(cm, &header_bc, counts);
#endif
update_coef_probs(cpi, &header_bc);
update_skip_probs(cm, &header_bc, counts);