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prepare splitting decoder-only parts into own file:

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make commonly used functions global

Originally committed as revision 9519 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Stefan Gehrer 2007-07-07 07:35:18 +00:00
parent 218b3ae970
commit ceb48b46f8
2 changed files with 54 additions and 45 deletions
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90
libavcodec/cavs.c
View File

@ -71,7 +71,7 @@ static inline int get_bs(vector_t *mvP, vector_t *mvQ, int b) {
* ---------
*
*/
static void filter_mb(AVSContext *h, enum mb_t mb_type) {
void ff_cavs_filter(AVSContext *h, enum mb_t mb_type) {
DECLARE_ALIGNED_8(uint8_t, bs[8]);
int qp_avg, alpha, beta, tc;
int i;
@ -323,7 +323,7 @@ static inline void mc_part_std(AVSContext *h,int square,int chroma_height,int de
}
}
static void inter_pred(AVSContext *h, enum mb_t mb_type) {
void ff_cavs_inter(AVSContext *h, enum mb_t mb_type) {
if(partition_flags[mb_type] == 0){ // 16x16
mc_part_std(h, 1, 8, 0, h->cy, h->cu, h->cv, 0, 0,
h->s.dsp.put_cavs_qpel_pixels_tab[0],
@ -428,8 +428,8 @@ static inline void mv_pred_sym(AVSContext *h, vector_t *src, enum block_t size)
set_mvs(dst, size);
}
static void mv_pred(AVSContext *h, enum mv_loc_t nP, enum mv_loc_t nC,
enum mv_pred_t mode, enum block_t size, int ref) {
void ff_cavs_mv(AVSContext *h, enum mv_loc_t nP, enum mv_loc_t nC,
enum mv_pred_t mode, enum block_t size, int ref) {
vector_t *mvP = &h->mv[nP];
vector_t *mvA = &h->mv[nP-1];
vector_t *mvB = &h->mv[nP-4];
@ -631,7 +631,7 @@ static int decode_mb_i(AVSContext *h, int cbp_code) {
h->left_border_v, h->c_stride);
decode_residual_chroma(h);
filter_mb(h,I_8X8);
ff_cavs_filter(h,I_8X8);
set_mv_intra(h);
return 0;
}
@ -643,40 +643,40 @@ static void decode_mb_p(AVSContext *h, enum mb_t mb_type) {
init_mb(h);
switch(mb_type) {
case P_SKIP:
mv_pred(h, MV_FWD_X0, MV_FWD_C2, MV_PRED_PSKIP, BLK_16X16, 0);
ff_cavs_mv(h, MV_FWD_X0, MV_FWD_C2, MV_PRED_PSKIP, BLK_16X16, 0);
break;
case P_16X16:
ref[0] = h->ref_flag ? 0 : get_bits1(gb);
mv_pred(h, MV_FWD_X0, MV_FWD_C2, MV_PRED_MEDIAN, BLK_16X16,ref[0]);
ff_cavs_mv(h, MV_FWD_X0, MV_FWD_C2, MV_PRED_MEDIAN, BLK_16X16,ref[0]);
break;
case P_16X8:
ref[0] = h->ref_flag ? 0 : get_bits1(gb);
ref[2] = h->ref_flag ? 0 : get_bits1(gb);
mv_pred(h, MV_FWD_X0, MV_FWD_C2, MV_PRED_TOP, BLK_16X8, ref[0]);
mv_pred(h, MV_FWD_X2, MV_FWD_A1, MV_PRED_LEFT, BLK_16X8, ref[2]);
ff_cavs_mv(h, MV_FWD_X0, MV_FWD_C2, MV_PRED_TOP, BLK_16X8, ref[0]);
ff_cavs_mv(h, MV_FWD_X2, MV_FWD_A1, MV_PRED_LEFT, BLK_16X8, ref[2]);
break;
case P_8X16:
ref[0] = h->ref_flag ? 0 : get_bits1(gb);
ref[1] = h->ref_flag ? 0 : get_bits1(gb);
mv_pred(h, MV_FWD_X0, MV_FWD_B3, MV_PRED_LEFT, BLK_8X16, ref[0]);
mv_pred(h, MV_FWD_X1, MV_FWD_C2, MV_PRED_TOPRIGHT, BLK_8X16, ref[1]);
ff_cavs_mv(h, MV_FWD_X0, MV_FWD_B3, MV_PRED_LEFT, BLK_8X16, ref[0]);
ff_cavs_mv(h, MV_FWD_X1, MV_FWD_C2, MV_PRED_TOPRIGHT,BLK_8X16, ref[1]);
break;
case P_8X8:
ref[0] = h->ref_flag ? 0 : get_bits1(gb);
ref[1] = h->ref_flag ? 0 : get_bits1(gb);
ref[2] = h->ref_flag ? 0 : get_bits1(gb);
ref[3] = h->ref_flag ? 0 : get_bits1(gb);
mv_pred(h, MV_FWD_X0, MV_FWD_B3, MV_PRED_MEDIAN, BLK_8X8, ref[0]);
mv_pred(h, MV_FWD_X1, MV_FWD_C2, MV_PRED_MEDIAN, BLK_8X8, ref[1]);
mv_pred(h, MV_FWD_X2, MV_FWD_X1, MV_PRED_MEDIAN, BLK_8X8, ref[2]);
mv_pred(h, MV_FWD_X3, MV_FWD_X0, MV_PRED_MEDIAN, BLK_8X8, ref[3]);
ff_cavs_mv(h, MV_FWD_X0, MV_FWD_B3, MV_PRED_MEDIAN, BLK_8X8, ref[0]);
ff_cavs_mv(h, MV_FWD_X1, MV_FWD_C2, MV_PRED_MEDIAN, BLK_8X8, ref[1]);
ff_cavs_mv(h, MV_FWD_X2, MV_FWD_X1, MV_PRED_MEDIAN, BLK_8X8, ref[2]);
ff_cavs_mv(h, MV_FWD_X3, MV_FWD_X0, MV_PRED_MEDIAN, BLK_8X8, ref[3]);
}
inter_pred(h, mb_type);
ff_cavs_inter(h, mb_type);
set_intra_mode_default(h);
store_mvs(h);
if(mb_type != P_SKIP)
decode_residual_inter(h);
filter_mb(h,mb_type);
ff_cavs_filter(h,mb_type);
*h->col_type = mb_type;
}
@ -697,8 +697,8 @@ static void decode_mb_b(AVSContext *h, enum mb_t mb_type) {
case B_DIRECT:
if(!(*h->col_type)) {
/* intra MB at co-location, do in-plane prediction */
mv_pred(h, MV_FWD_X0, MV_FWD_C2, MV_PRED_BSKIP, BLK_16X16, 1);
mv_pred(h, MV_BWD_X0, MV_BWD_C2, MV_PRED_BSKIP, BLK_16X16, 0);
ff_cavs_mv(h, MV_FWD_X0, MV_FWD_C2, MV_PRED_BSKIP, BLK_16X16, 1);
ff_cavs_mv(h, MV_BWD_X0, MV_BWD_C2, MV_PRED_BSKIP, BLK_16X16, 0);
} else
/* direct prediction from co-located P MB, block-wise */
for(block=0;block<4;block++)
@ -706,14 +706,14 @@ static void decode_mb_b(AVSContext *h, enum mb_t mb_type) {
&h->col_mv[(h->mby*h->mb_width+h->mbx)*4 + block]);
break;
case B_FWD_16X16:
mv_pred(h, MV_FWD_X0, MV_FWD_C2, MV_PRED_MEDIAN, BLK_16X16, 1);
ff_cavs_mv(h, MV_FWD_X0, MV_FWD_C2, MV_PRED_MEDIAN, BLK_16X16, 1);
break;
case B_SYM_16X16:
mv_pred(h, MV_FWD_X0, MV_FWD_C2, MV_PRED_MEDIAN, BLK_16X16, 1);
ff_cavs_mv(h, MV_FWD_X0, MV_FWD_C2, MV_PRED_MEDIAN, BLK_16X16, 1);
mv_pred_sym(h, &h->mv[MV_FWD_X0], BLK_16X16);
break;
case B_BWD_16X16:
mv_pred(h, MV_BWD_X0, MV_BWD_C2, MV_PRED_MEDIAN, BLK_16X16, 0);
ff_cavs_mv(h, MV_BWD_X0, MV_BWD_C2, MV_PRED_MEDIAN, BLK_16X16, 0);
break;
case B_8X8:
for(block=0;block<4;block++)
@ -723,9 +723,9 @@ static void decode_mb_b(AVSContext *h, enum mb_t mb_type) {
case B_SUB_DIRECT:
if(!(*h->col_type)) {
/* intra MB at co-location, do in-plane prediction */
mv_pred(h, mv_scan[block], mv_scan[block]-3,
ff_cavs_mv(h, mv_scan[block], mv_scan[block]-3,
MV_PRED_BSKIP, BLK_8X8, 1);
mv_pred(h, mv_scan[block]+MV_BWD_OFFS,
ff_cavs_mv(h, mv_scan[block]+MV_BWD_OFFS,
mv_scan[block]-3+MV_BWD_OFFS,
MV_PRED_BSKIP, BLK_8X8, 0);
} else
@ -733,11 +733,11 @@ static void decode_mb_b(AVSContext *h, enum mb_t mb_type) {
&h->col_mv[(h->mby*h->mb_width + h->mbx)*4 + block]);
break;
case B_SUB_FWD:
mv_pred(h, mv_scan[block], mv_scan[block]-3,
ff_cavs_mv(h, mv_scan[block], mv_scan[block]-3,
MV_PRED_MEDIAN, BLK_8X8, 1);
break;
case B_SUB_SYM:
mv_pred(h, mv_scan[block], mv_scan[block]-3,
ff_cavs_mv(h, mv_scan[block], mv_scan[block]-3,
MV_PRED_MEDIAN, BLK_8X8, 1);
mv_pred_sym(h, &h->mv[mv_scan[block]], BLK_8X8);
break;
@ -745,7 +745,7 @@ static void decode_mb_b(AVSContext *h, enum mb_t mb_type) {
}
for(block=0;block<4;block++) {
if(sub_type[block] == B_SUB_BWD)
mv_pred(h, mv_scan[block]+MV_BWD_OFFS,
ff_cavs_mv(h, mv_scan[block]+MV_BWD_OFFS,
mv_scan[block]+MV_BWD_OFFS-3,
MV_PRED_MEDIAN, BLK_8X8, 0);
}
@ -755,37 +755,37 @@ static void decode_mb_b(AVSContext *h, enum mb_t mb_type) {
flags = partition_flags[mb_type];
if(mb_type & 1) { /* 16x8 macroblock types */
if(flags & FWD0)
mv_pred(h, MV_FWD_X0, MV_FWD_C2, MV_PRED_TOP, BLK_16X8, 1);
ff_cavs_mv(h, MV_FWD_X0, MV_FWD_C2, MV_PRED_TOP, BLK_16X8, 1);
if(flags & SYM0)
mv_pred_sym(h, &h->mv[MV_FWD_X0], BLK_16X8);
if(flags & FWD1)
mv_pred(h, MV_FWD_X2, MV_FWD_A1, MV_PRED_LEFT, BLK_16X8, 1);
ff_cavs_mv(h, MV_FWD_X2, MV_FWD_A1, MV_PRED_LEFT, BLK_16X8, 1);
if(flags & SYM1)
mv_pred_sym(h, &h->mv[MV_FWD_X2], BLK_16X8);
if(flags & BWD0)
mv_pred(h, MV_BWD_X0, MV_BWD_C2, MV_PRED_TOP, BLK_16X8, 0);
ff_cavs_mv(h, MV_BWD_X0, MV_BWD_C2, MV_PRED_TOP, BLK_16X8, 0);
if(flags & BWD1)
mv_pred(h, MV_BWD_X2, MV_BWD_A1, MV_PRED_LEFT, BLK_16X8, 0);
ff_cavs_mv(h, MV_BWD_X2, MV_BWD_A1, MV_PRED_LEFT, BLK_16X8, 0);
} else { /* 8x16 macroblock types */
if(flags & FWD0)
mv_pred(h, MV_FWD_X0, MV_FWD_B3, MV_PRED_LEFT, BLK_8X16, 1);
ff_cavs_mv(h, MV_FWD_X0, MV_FWD_B3, MV_PRED_LEFT, BLK_8X16, 1);
if(flags & SYM0)
mv_pred_sym(h, &h->mv[MV_FWD_X0], BLK_8X16);
if(flags & FWD1)
mv_pred(h, MV_FWD_X1, MV_FWD_C2, MV_PRED_TOPRIGHT,BLK_8X16, 1);
ff_cavs_mv(h,MV_FWD_X1,MV_FWD_C2,MV_PRED_TOPRIGHT,BLK_8X16,1);
if(flags & SYM1)
mv_pred_sym(h, &h->mv[MV_FWD_X1], BLK_8X16);
if(flags & BWD0)
mv_pred(h, MV_BWD_X0, MV_BWD_B3, MV_PRED_LEFT, BLK_8X16, 0);
ff_cavs_mv(h, MV_BWD_X0, MV_BWD_B3, MV_PRED_LEFT, BLK_8X16, 0);
if(flags & BWD1)
mv_pred(h, MV_BWD_X1, MV_BWD_C2, MV_PRED_TOPRIGHT,BLK_8X16, 0);
ff_cavs_mv(h,MV_BWD_X1,MV_BWD_C2,MV_PRED_TOPRIGHT,BLK_8X16,0);
}
}
inter_pred(h, mb_type);
ff_cavs_inter(h, mb_type);
set_intra_mode_default(h);
if(mb_type != B_SKIP)
decode_residual_inter(h);
filter_mb(h,mb_type);
ff_cavs_filter(h,mb_type);
}
/*****************************************************************************
@ -828,7 +828,7 @@ static inline void check_for_slice(AVSContext *h) {
*
****************************************************************************/
static void init_pic(AVSContext *h) {
void ff_cavs_init_pic(AVSContext *h) {
int i;
/* clear some predictors */
@ -882,7 +882,7 @@ static int decode_pic(AVSContext *h) {
s->avctx->release_buffer(s->avctx, (AVFrame *)&h->picture);
s->avctx->get_buffer(s->avctx, (AVFrame *)&h->picture);
init_pic(h);
ff_cavs_init_pic(h);
h->picture.poc = get_bits(&s->gb,8)*2;
/* get temporal distances and MV scaling factors */
@ -991,7 +991,7 @@ static int decode_pic(AVSContext *h) {
* this data has to be stored for one complete row of macroblocks
* and this storage space is allocated here
*/
static void init_top_lines(AVSContext *h) {
void ff_cavs_init_top_lines(AVSContext *h) {
/* alloc top line of predictors */
h->top_qp = av_malloc( h->mb_width);
h->top_mv[0] = av_malloc((h->mb_width*2+1)*sizeof(vector_t));
@ -1031,7 +1031,7 @@ static int decode_seq_header(AVSContext *h) {
h->s.avctx->width = s->width;
h->s.avctx->height = s->height;
if(!h->top_qp)
init_top_lines(h);
ff_cavs_init_top_lines(h);
return 0;
}
@ -1115,7 +1115,7 @@ static int cavs_decode_frame(AVCodecContext * avctx,void *data, int *data_size,
}
}
static int cavs_decode_init(AVCodecContext * avctx) {
int ff_cavs_init(AVCodecContext *avctx) {
AVSContext *h = avctx->priv_data;
MpegEncContext * const s = &h->s;
@ -1146,7 +1146,7 @@ static int cavs_decode_init(AVCodecContext * avctx) {
return 0;
}
static int cavs_decode_end(AVCodecContext * avctx) {
int ff_cavs_end(AVCodecContext *avctx) {
AVSContext *h = avctx->priv_data;
av_free(h->top_qp);
@ -1167,9 +1167,9 @@ AVCodec cavs_decoder = {
CODEC_TYPE_VIDEO,
CODEC_ID_CAVS,
sizeof(AVSContext),
cavs_decode_init,
ff_cavs_init,
NULL,
cavs_decode_end,
ff_cavs_end,
cavs_decode_frame,
CODEC_CAP_DR1 | CODEC_CAP_DELAY,
.flush= cavs_flush,

9
libavcodec/cavs.h
View File

@ -461,4 +461,13 @@ static inline int dequant(AVSContext *h, DCTELEM *level_buf, uint8_t *run_buf,
return 0;
}
void ff_cavs_filter(AVSContext *h, enum mb_t mb_type);
void ff_cavs_inter(AVSContext *h, enum mb_t mb_type);
void ff_cavs_mv(AVSContext *h, enum mv_loc_t nP, enum mv_loc_t nC,
enum mv_pred_t mode, enum block_t size, int ref);
void ff_cavs_init_pic(AVSContext *h);
void ff_cavs_init_top_lines(AVSContext *h);
int ff_cavs_init(AVCodecContext *avctx);
int ff_cavs_end (AVCodecContext *avctx);
#endif /* CAVS_H */