/*
- * Copyright (c) 2002 The FFmpeg Project.
+ * Copyright (c) 2002 The Libav Project
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "avcodec.h"
-#include "dsputil.h"
+#include "h263.h"
+#include "internal.h"
+#include "intrax8.h"
+#include "mathops.h"
+#include "mpegutils.h"
#include "mpegvideo.h"
#include "msmpeg4.h"
#include "msmpeg4data.h"
-#include "intrax8.h"
#include "wmv2.h"
-static void parse_mb_skip(Wmv2Context * w){
+static void parse_mb_skip(Wmv2Context *w)
+{
int mb_x, mb_y;
- MpegEncContext * const s= &w->s;
- uint32_t * const mb_type= s->current_picture_ptr->mb_type;
+ MpegEncContext *const s = &w->s;
+ uint32_t *const mb_type = s->current_picture_ptr->mb_type;
- w->skip_type= get_bits(&s->gb, 2);
- switch(w->skip_type){
+ w->skip_type = get_bits(&s->gb, 2);
+ switch (w->skip_type) {
case SKIP_TYPE_NONE:
- for(mb_y=0; mb_y<s->mb_height; mb_y++){
- for(mb_x=0; mb_x<s->mb_width; mb_x++){
- mb_type[mb_y*s->mb_stride + mb_x]= MB_TYPE_16x16 | MB_TYPE_L0;
- }
- }
+ for (mb_y = 0; mb_y < s->mb_height; mb_y++)
+ for (mb_x = 0; mb_x < s->mb_width; mb_x++)
+ mb_type[mb_y * s->mb_stride + mb_x] =
+ MB_TYPE_16x16 | MB_TYPE_L0;
break;
case SKIP_TYPE_MPEG:
- for(mb_y=0; mb_y<s->mb_height; mb_y++){
- for(mb_x=0; mb_x<s->mb_width; mb_x++){
- mb_type[mb_y*s->mb_stride + mb_x]= (get_bits1(&s->gb) ? MB_TYPE_SKIP : 0) | MB_TYPE_16x16 | MB_TYPE_L0;
- }
- }
+ for (mb_y = 0; mb_y < s->mb_height; mb_y++)
+ for (mb_x = 0; mb_x < s->mb_width; mb_x++)
+ mb_type[mb_y * s->mb_stride + mb_x] =
+ (get_bits1(&s->gb) ? MB_TYPE_SKIP : 0) | MB_TYPE_16x16 | MB_TYPE_L0;
break;
case SKIP_TYPE_ROW:
- for(mb_y=0; mb_y<s->mb_height; mb_y++){
- if(get_bits1(&s->gb)){
- for(mb_x=0; mb_x<s->mb_width; mb_x++){
- mb_type[mb_y*s->mb_stride + mb_x]= MB_TYPE_SKIP | MB_TYPE_16x16 | MB_TYPE_L0;
- }
- }else{
- for(mb_x=0; mb_x<s->mb_width; mb_x++){
- mb_type[mb_y*s->mb_stride + mb_x]= (get_bits1(&s->gb) ? MB_TYPE_SKIP : 0) | MB_TYPE_16x16 | MB_TYPE_L0;
- }
+ for (mb_y = 0; mb_y < s->mb_height; mb_y++) {
+ if (get_bits1(&s->gb)) {
+ for (mb_x = 0; mb_x < s->mb_width; mb_x++)
+ mb_type[mb_y * s->mb_stride + mb_x] =
+ MB_TYPE_SKIP | MB_TYPE_16x16 | MB_TYPE_L0;
+ } else {
+ for (mb_x = 0; mb_x < s->mb_width; mb_x++)
+ mb_type[mb_y * s->mb_stride + mb_x] =
+ (get_bits1(&s->gb) ? MB_TYPE_SKIP : 0) | MB_TYPE_16x16 | MB_TYPE_L0;
}
}
break;
case SKIP_TYPE_COL:
- for(mb_x=0; mb_x<s->mb_width; mb_x++){
- if(get_bits1(&s->gb)){
- for(mb_y=0; mb_y<s->mb_height; mb_y++){
- mb_type[mb_y*s->mb_stride + mb_x]= MB_TYPE_SKIP | MB_TYPE_16x16 | MB_TYPE_L0;
- }
- }else{
- for(mb_y=0; mb_y<s->mb_height; mb_y++){
- mb_type[mb_y*s->mb_stride + mb_x]= (get_bits1(&s->gb) ? MB_TYPE_SKIP : 0) | MB_TYPE_16x16 | MB_TYPE_L0;
- }
+ for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
+ if (get_bits1(&s->gb)) {
+ for (mb_y = 0; mb_y < s->mb_height; mb_y++)
+ mb_type[mb_y * s->mb_stride + mb_x] =
+ MB_TYPE_SKIP | MB_TYPE_16x16 | MB_TYPE_L0;
+ } else {
+ for (mb_y = 0; mb_y < s->mb_height; mb_y++)
+ mb_type[mb_y * s->mb_stride + mb_x] =
+ (get_bits1(&s->gb) ? MB_TYPE_SKIP : 0) | MB_TYPE_16x16 | MB_TYPE_L0;
}
}
break;
}
}
-static int decode_ext_header(Wmv2Context *w){
- MpegEncContext * const s= &w->s;
+static int decode_ext_header(Wmv2Context *w)
+{
+ MpegEncContext *const s = &w->s;
GetBitContext gb;
int fps;
int code;
- if(s->avctx->extradata_size<4) return -1;
+ if (s->avctx->extradata_size < 4)
+ return AVERROR_INVALIDDATA;
- init_get_bits(&gb, s->avctx->extradata, s->avctx->extradata_size*8);
+ init_get_bits(&gb, s->avctx->extradata, 32);
- fps = get_bits(&gb, 5);
- s->bit_rate = get_bits(&gb, 11)*1024;
- w->mspel_bit = get_bits1(&gb);
- s->loop_filter = get_bits1(&gb);
- w->abt_flag = get_bits1(&gb);
- w->j_type_bit = get_bits1(&gb);
- w->top_left_mv_flag= get_bits1(&gb);
- w->per_mb_rl_bit = get_bits1(&gb);
- code = get_bits(&gb, 3);
+ fps = get_bits(&gb, 5);
+ s->bit_rate = get_bits(&gb, 11) * 1024;
+ w->mspel_bit = get_bits1(&gb);
+ s->loop_filter = get_bits1(&gb);
+ w->abt_flag = get_bits1(&gb);
+ w->j_type_bit = get_bits1(&gb);
+ w->top_left_mv_flag = get_bits1(&gb);
+ w->per_mb_rl_bit = get_bits1(&gb);
+ code = get_bits(&gb, 3);
- if(code==0) return -1;
+ if (code == 0)
+ return AVERROR_INVALIDDATA;
s->slice_height = s->mb_height / code;
- if(s->avctx->debug&FF_DEBUG_PICT_INFO){
- av_log(s->avctx, AV_LOG_DEBUG, "fps:%d, br:%d, qpbit:%d, abt_flag:%d, j_type_bit:%d, tl_mv_flag:%d, mbrl_bit:%d, code:%d, loop_filter:%d, slices:%d\n",
- fps, s->bit_rate, w->mspel_bit, w->abt_flag, w->j_type_bit, w->top_left_mv_flag, w->per_mb_rl_bit, code, s->loop_filter,
- code);
- }
+ if (s->avctx->debug & FF_DEBUG_PICT_INFO)
+ av_log(s->avctx, AV_LOG_DEBUG,
+ "fps:%d, br:%d, qpbit:%d, abt_flag:%d, j_type_bit:%d, "
+ "tl_mv_flag:%d, mbrl_bit:%d, code:%d, loop_filter:%d, "
+ "slices:%d\n",
+ fps, s->bit_rate, w->mspel_bit, w->abt_flag, w->j_type_bit,
+ w->top_left_mv_flag, w->per_mb_rl_bit, code, s->loop_filter,
+ code);
return 0;
}
-int ff_wmv2_decode_picture_header(MpegEncContext * s)
+int ff_wmv2_decode_picture_header(MpegEncContext *s)
{
- Wmv2Context * const w= (Wmv2Context*)s;
+ Wmv2Context *const w = (Wmv2Context *) s;
int code;
-#if 0
-{
-int i;
-for(i=0; i<s->gb.size*8; i++)
- printf("%d", get_bits1(&s->gb));
-// get_bits1(&s->gb);
-printf("END\n");
-return -1;
-}
-#endif
- if(s->picture_number==0)
+ if (s->picture_number == 0)
decode_ext_header(w);
s->pict_type = get_bits1(&s->gb) + 1;
- if(s->pict_type == FF_I_TYPE){
+ if (s->pict_type == AV_PICTURE_TYPE_I) {
code = get_bits(&s->gb, 7);
av_log(s->avctx, AV_LOG_DEBUG, "I7:%X/\n", code);
}
- s->chroma_qscale= s->qscale = get_bits(&s->gb, 5);
- if(s->qscale <= 0)
- return -1;
+ s->chroma_qscale = s->qscale = get_bits(&s->gb, 5);
+ if (s->qscale <= 0)
+ return AVERROR_INVALIDDATA;
return 0;
}
-int ff_wmv2_decode_secondary_picture_header(MpegEncContext * s)
+int ff_wmv2_decode_secondary_picture_header(MpegEncContext *s)
{
- Wmv2Context * const w= (Wmv2Context*)s;
+ Wmv2Context *const w = (Wmv2Context *) s;
- if (s->pict_type == FF_I_TYPE) {
- if(w->j_type_bit) w->j_type= get_bits1(&s->gb);
- else w->j_type= 0; //FIXME check
+ if (s->pict_type == AV_PICTURE_TYPE_I) {
+ if (w->j_type_bit)
+ w->j_type = get_bits1(&s->gb);
+ else
+ w->j_type = 0; // FIXME check
- if(!w->j_type){
- if(w->per_mb_rl_bit) s->per_mb_rl_table= get_bits1(&s->gb);
- else s->per_mb_rl_table= 0;
+ if (!w->j_type) {
+ if (w->per_mb_rl_bit)
+ s->per_mb_rl_table = get_bits1(&s->gb);
+ else
+ s->per_mb_rl_table = 0;
- if(!s->per_mb_rl_table){
+ if (!s->per_mb_rl_table) {
s->rl_chroma_table_index = decode012(&s->gb);
- s->rl_table_index = decode012(&s->gb);
+ s->rl_table_index = decode012(&s->gb);
}
s->dc_table_index = get_bits1(&s->gb);
}
- s->inter_intra_pred= 0;
- s->no_rounding = 1;
- if(s->avctx->debug&FF_DEBUG_PICT_INFO){
- av_log(s->avctx, AV_LOG_DEBUG, "qscale:%d rlc:%d rl:%d dc:%d mbrl:%d j_type:%d \n",
- s->qscale,
- s->rl_chroma_table_index,
- s->rl_table_index,
- s->dc_table_index,
- s->per_mb_rl_table,
- w->j_type);
+ s->inter_intra_pred = 0;
+ s->no_rounding = 1;
+ if (s->avctx->debug & FF_DEBUG_PICT_INFO) {
+ av_log(s->avctx, AV_LOG_DEBUG,
+ "qscale:%d rlc:%d rl:%d dc:%d mbrl:%d j_type:%d \n",
+ s->qscale, s->rl_chroma_table_index, s->rl_table_index,
+ s->dc_table_index, s->per_mb_rl_table, w->j_type);
}
- }else{
+ } else {
int cbp_index;
- w->j_type=0;
+ w->j_type = 0;
parse_mb_skip(w);
- cbp_index= decode012(&s->gb);
- if(s->qscale <= 10){
- int map[3]= {0,2,1};
- w->cbp_table_index= map[cbp_index];
- }else if(s->qscale <= 20){
- int map[3]= {1,0,2};
- w->cbp_table_index= map[cbp_index];
- }else{
- int map[3]= {2,1,0};
- w->cbp_table_index= map[cbp_index];
+ cbp_index = decode012(&s->gb);
+ if (s->qscale <= 10) {
+ int map[3] = { 0, 2, 1 };
+ w->cbp_table_index = map[cbp_index];
+ } else if (s->qscale <= 20) {
+ int map[3] = { 1, 0, 2 };
+ w->cbp_table_index = map[cbp_index];
+ } else {
+ int map[3] = {2,1,0};
+ w->cbp_table_index = map[cbp_index];
}
- if(w->mspel_bit) s->mspel= get_bits1(&s->gb);
- else s->mspel= 0; //FIXME check
+ if (w->mspel_bit)
+ s->mspel = get_bits1(&s->gb);
+ else
+ s->mspel = 0; // FIXME check
- if(w->abt_flag){
- w->per_mb_abt= get_bits1(&s->gb)^1;
- if(!w->per_mb_abt){
- w->abt_type= decode012(&s->gb);
- }
+ if (w->abt_flag) {
+ w->per_mb_abt = get_bits1(&s->gb) ^ 1;
+ if (!w->per_mb_abt)
+ w->abt_type = decode012(&s->gb);
}
- if(w->per_mb_rl_bit) s->per_mb_rl_table= get_bits1(&s->gb);
- else s->per_mb_rl_table= 0;
+ if (w->per_mb_rl_bit)
+ s->per_mb_rl_table = get_bits1(&s->gb);
+ else
+ s->per_mb_rl_table = 0;
- if(!s->per_mb_rl_table){
- s->rl_table_index = decode012(&s->gb);
+ if (!s->per_mb_rl_table) {
+ s->rl_table_index = decode012(&s->gb);
s->rl_chroma_table_index = s->rl_table_index;
}
- s->dc_table_index = get_bits1(&s->gb);
- s->mv_table_index = get_bits1(&s->gb);
-
- s->inter_intra_pred= 0;//(s->width*s->height < 320*240 && s->bit_rate<=II_BITRATE);
- s->no_rounding ^= 1;
-
- if(s->avctx->debug&FF_DEBUG_PICT_INFO){
- av_log(s->avctx, AV_LOG_DEBUG, "rl:%d rlc:%d dc:%d mv:%d mbrl:%d qp:%d mspel:%d per_mb_abt:%d abt_type:%d cbp:%d ii:%d\n",
- s->rl_table_index,
- s->rl_chroma_table_index,
- s->dc_table_index,
- s->mv_table_index,
- s->per_mb_rl_table,
- s->qscale,
- s->mspel,
- w->per_mb_abt,
- w->abt_type,
- w->cbp_table_index,
- s->inter_intra_pred);
+ s->dc_table_index = get_bits1(&s->gb);
+ s->mv_table_index = get_bits1(&s->gb);
+
+ s->inter_intra_pred = 0; // (s->width * s->height < 320 * 240 && s->bit_rate <= II_BITRATE);
+ s->no_rounding ^= 1;
+
+ if (s->avctx->debug & FF_DEBUG_PICT_INFO) {
+ av_log(s->avctx, AV_LOG_DEBUG,
+ "rl:%d rlc:%d dc:%d mv:%d mbrl:%d qp:%d mspel:%d "
+ "per_mb_abt:%d abt_type:%d cbp:%d ii:%d\n",
+ s->rl_table_index, s->rl_chroma_table_index,
+ s->dc_table_index, s->mv_table_index,
+ s->per_mb_rl_table, s->qscale, s->mspel,
+ w->per_mb_abt, w->abt_type, w->cbp_table_index,
+ s->inter_intra_pred);
}
}
- s->esc3_level_length= 0;
- s->esc3_run_length= 0;
-
-s->picture_number++; //FIXME ?
-
-
- if(w->j_type){
- ff_intrax8_decode_picture(&w->x8, 2*s->qscale, (s->qscale-1)|1 );
+ s->esc3_level_length = 0;
+ s->esc3_run_length = 0;
+ s->picture_number++; // FIXME ?
+
+ if (w->j_type) {
+ ff_intrax8_decode_picture(&w->x8, &s->current_picture,
+ &s->gb, &s->mb_x, &s->mb_y,
+ 2 * s->qscale, (s->qscale - 1) | 1,
+ s->loop_filter, s->low_delay);
+
+ ff_er_add_slice(&w->s.er, 0, 0,
+ (w->s.mb_x >> 1) - 1, (w->s.mb_y >> 1) - 1,
+ ER_MB_END);
return 1;
}
return 0;
}
-static inline int wmv2_decode_motion(Wmv2Context *w, int *mx_ptr, int *my_ptr){
- MpegEncContext * const s= &w->s;
+static inline int wmv2_decode_motion(Wmv2Context *w, int *mx_ptr, int *my_ptr)
+{
+ MpegEncContext *const s = &w->s;
int ret;
- ret= ff_msmpeg4_decode_motion(s, mx_ptr, my_ptr);
+ ret = ff_msmpeg4_decode_motion(s, mx_ptr, my_ptr);
- if(ret<0) return -1;
+ if (ret < 0)
+ return ret;
- if((((*mx_ptr)|(*my_ptr)) & 1) && s->mspel)
- w->hshift= get_bits1(&s->gb);
+ if ((((*mx_ptr) | (*my_ptr)) & 1) && s->mspel)
+ w->hshift = get_bits1(&s->gb);
else
- w->hshift= 0;
-
-//printf("%d %d ", *mx_ptr, *my_ptr);
+ w->hshift = 0;
return 0;
}
-static int16_t *wmv2_pred_motion(Wmv2Context *w, int *px, int *py){
- MpegEncContext * const s= &w->s;
+static int16_t *wmv2_pred_motion(Wmv2Context *w, int *px, int *py)
+{
+ MpegEncContext *const s = &w->s;
int xy, wrap, diff, type;
int16_t *A, *B, *C, *mot_val;
- wrap = s->b8_stride;
- xy = s->block_index[0];
+ wrap = s->b8_stride;
+ xy = s->block_index[0];
mot_val = s->current_picture.motion_val[0][xy];
- A = s->current_picture.motion_val[0][xy - 1];
- B = s->current_picture.motion_val[0][xy - wrap];
- C = s->current_picture.motion_val[0][xy + 2 - wrap];
+ A = s->current_picture.motion_val[0][xy - 1];
+ B = s->current_picture.motion_val[0][xy - wrap];
+ C = s->current_picture.motion_val[0][xy + 2 - wrap];
- if(s->mb_x && !s->first_slice_line && !s->mspel && w->top_left_mv_flag)
- diff= FFMAX(FFABS(A[0] - B[0]), FFABS(A[1] - B[1]));
+ if (s->mb_x && !s->first_slice_line && !s->mspel && w->top_left_mv_flag)
+ diff = FFMAX(FFABS(A[0] - B[0]), FFABS(A[1] - B[1]));
else
- diff=0;
+ diff = 0;
- if(diff >= 8)
- type= get_bits1(&s->gb);
+ if (diff >= 8)
+ type = get_bits1(&s->gb);
else
- type= 2;
-
- if(type == 0){
- *px= A[0];
- *py= A[1];
- }else if(type == 1){
- *px= B[0];
- *py= B[1];
- }else{
+ type = 2;
+
+ if (type == 0) {
+ *px = A[0];
+ *py = A[1];
+ } else if (type == 1) {
+ *px = B[0];
+ *py = B[1];
+ } else {
/* special case for first (slice) line */
if (s->first_slice_line) {
*px = A[0];
return mot_val;
}
-static inline int wmv2_decode_inter_block(Wmv2Context *w, DCTELEM *block, int n, int cbp){
- MpegEncContext * const s= &w->s;
- static const int sub_cbp_table[3]= {2,3,1};
- int sub_cbp;
+static inline int wmv2_decode_inter_block(Wmv2Context *w, int16_t *block,
+ int n, int cbp)
+{
+ MpegEncContext *const s = &w->s;
+ static const int sub_cbp_table[3] = { 2, 3, 1 };
+ int sub_cbp, ret;
- if(!cbp){
+ if (!cbp) {
s->block_last_index[n] = -1;
-
return 0;
}
- if(w->per_block_abt)
- w->abt_type= decode012(&s->gb);
-#if 0
- if(w->per_block_abt)
- printf("B%d", w->abt_type);
-#endif
- w->abt_type_table[n]= w->abt_type;
-
- if(w->abt_type){
-// const uint8_t *scantable= w->abt_scantable[w->abt_type-1].permutated;
- const uint8_t *scantable= w->abt_scantable[w->abt_type-1].scantable;
-// const uint8_t *scantable= w->abt_type-1 ? w->abt_scantable[1].permutated : w->abt_scantable[0].scantable;
-
- sub_cbp= sub_cbp_table[ decode012(&s->gb) ];
-// printf("S%d", sub_cbp);
-
- if(sub_cbp&1){
- if (ff_msmpeg4_decode_block(s, block, n, 1, scantable) < 0)
- return -1;
- }
+ if (w->per_block_abt)
+ w->abt_type = decode012(&s->gb);
+ w->abt_type_table[n] = w->abt_type;
+
+ if (w->abt_type) {
+// const uint8_t *scantable = w->abt_scantable[w->abt_type - 1].permutated;
+ const uint8_t *scantable = w->abt_scantable[w->abt_type - 1].scantable;
+// const uint8_t *scantable = w->abt_type - 1 ? w->abt_scantable[1].permutated : w->abt_scantable[0].scantable;
+
+ sub_cbp = sub_cbp_table[decode012(&s->gb)];
+
+ if (sub_cbp & 1)
+ if ((ret = ff_msmpeg4_decode_block(s, block, n, 1, scantable)) < 0)
+ return ret;
+
+ if (sub_cbp & 2)
+ if ((ret = ff_msmpeg4_decode_block(s, w->abt_block2[n], n, 1, scantable)) < 0)
+ return ret;
- if(sub_cbp&2){
- if (ff_msmpeg4_decode_block(s, w->abt_block2[n], n, 1, scantable) < 0)
- return -1;
- }
s->block_last_index[n] = 63;
return 0;
- }else{
- return ff_msmpeg4_decode_block(s, block, n, 1, s->inter_scantable.permutated);
+ } else {
+ return ff_msmpeg4_decode_block(s, block, n, 1,
+ s->inter_scantable.permutated);
}
}
-
-int ff_wmv2_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
+int ff_wmv2_decode_mb(MpegEncContext *s, int16_t block[6][64])
{
- Wmv2Context * const w= (Wmv2Context*)s;
- int cbp, code, i;
+ Wmv2Context *const w = (Wmv2Context *) s;
+ int cbp, code, i, ret;
uint8_t *coded_val;
- if(w->j_type) return 0;
+ if (w->j_type)
+ return 0;
- if (s->pict_type == FF_P_TYPE) {
- if(IS_SKIP(s->current_picture.mb_type[s->mb_y * s->mb_stride + s->mb_x])){
+ if (s->pict_type == AV_PICTURE_TYPE_P) {
+ if (IS_SKIP(s->current_picture.mb_type[s->mb_y * s->mb_stride + s->mb_x])) {
/* skip mb */
s->mb_intra = 0;
- for(i=0;i<6;i++)
+ for (i = 0; i < 6; i++)
s->block_last_index[i] = -1;
- s->mv_dir = MV_DIR_FORWARD;
- s->mv_type = MV_TYPE_16X16;
+ s->mv_dir = MV_DIR_FORWARD;
+ s->mv_type = MV_TYPE_16X16;
s->mv[0][0][0] = 0;
s->mv[0][0][1] = 0;
- s->mb_skipped = 1;
- w->hshift=0;
+ s->mb_skipped = 1;
+ w->hshift = 0;
return 0;
}
- code = get_vlc2(&s->gb, ff_mb_non_intra_vlc[w->cbp_table_index].table, MB_NON_INTRA_VLC_BITS, 3);
+ code = get_vlc2(&s->gb, ff_mb_non_intra_vlc[w->cbp_table_index].table,
+ MB_NON_INTRA_VLC_BITS, 3);
if (code < 0)
- return -1;
+ return AVERROR_INVALIDDATA;
s->mb_intra = (~code & 0x40) >> 6;
cbp = code & 0x3f;
} else {
s->mb_intra = 1;
code = get_vlc2(&s->gb, ff_msmp4_mb_i_vlc.table, MB_INTRA_VLC_BITS, 2);
- if (code < 0){
- av_log(s->avctx, AV_LOG_ERROR, "II-cbp illegal at %d %d\n", s->mb_x, s->mb_y);
- return -1;
+ if (code < 0) {
+ av_log(s->avctx, AV_LOG_ERROR,
+ "II-cbp illegal at %d %d\n", s->mb_x, s->mb_y);
+ return AVERROR_INVALIDDATA;
}
/* predict coded block pattern */
cbp = 0;
- for(i=0;i<6;i++) {
+ for (i = 0; i < 6; i++) {
int val = ((code >> (5 - i)) & 1);
if (i < 4) {
- int pred = ff_msmpeg4_coded_block_pred(s, i, &coded_val);
- val = val ^ pred;
+ int pred = ff_msmpeg4_coded_block_pred(s, i, &coded_val);
+ val = val ^ pred;
*coded_val = val;
}
cbp |= val << (5 - i);
if (!s->mb_intra) {
int mx, my;
-//printf("P at %d %d\n", s->mb_x, s->mb_y);
wmv2_pred_motion(w, &mx, &my);
- if(cbp){
- s->dsp.clear_blocks(s->block[0]);
- if(s->per_mb_rl_table){
- s->rl_table_index = decode012(&s->gb);
+ if (cbp) {
+ s->bdsp.clear_blocks(s->block[0]);
+ if (s->per_mb_rl_table) {
+ s->rl_table_index = decode012(&s->gb);
s->rl_chroma_table_index = s->rl_table_index;
}
- if(w->abt_flag && w->per_mb_abt){
- w->per_block_abt= get_bits1(&s->gb);
- if(!w->per_block_abt)
- w->abt_type= decode012(&s->gb);
- }else
- w->per_block_abt=0;
+ if (w->abt_flag && w->per_mb_abt) {
+ w->per_block_abt = get_bits1(&s->gb);
+ if (!w->per_block_abt)
+ w->abt_type = decode012(&s->gb);
+ } else
+ w->per_block_abt = 0;
}
- if (wmv2_decode_motion(w, &mx, &my) < 0)
- return -1;
+ if ((ret = wmv2_decode_motion(w, &mx, &my)) < 0)
+ return ret;
- s->mv_dir = MV_DIR_FORWARD;
- s->mv_type = MV_TYPE_16X16;
+ s->mv_dir = MV_DIR_FORWARD;
+ s->mv_type = MV_TYPE_16X16;
s->mv[0][0][0] = mx;
s->mv[0][0][1] = my;
for (i = 0; i < 6; i++) {
- if (wmv2_decode_inter_block(w, block[i], i, (cbp >> (5 - i)) & 1) < 0)
- {
- av_log(s->avctx, AV_LOG_ERROR, "\nerror while decoding inter block: %d x %d (%d)\n", s->mb_x, s->mb_y, i);
- return -1;
+ if ((ret = wmv2_decode_inter_block(w, block[i], i, (cbp >> (5 - i)) & 1)) < 0) {
+ av_log(s->avctx, AV_LOG_ERROR,
+ "\nerror while decoding inter block: %d x %d (%d)\n",
+ s->mb_x, s->mb_y, i);
+ return ret;
}
}
} else {
-//if(s->pict_type==FF_P_TYPE)
-// printf("%d%d ", s->inter_intra_pred, cbp);
-//printf("I at %d %d %d %06X\n", s->mb_x, s->mb_y, ((cbp&3)? 1 : 0) +((cbp&0x3C)? 2 : 0), show_bits(&s->gb, 24));
+ if (s->pict_type == AV_PICTURE_TYPE_P)
+ ff_dlog(s->avctx, "%d%d ", s->inter_intra_pred, cbp);
+ ff_dlog(s->avctx, "I at %d %d %d %06X\n", s->mb_x, s->mb_y,
+ ((cbp & 3) ? 1 : 0) + ((cbp & 0x3C) ? 2 : 0),
+ show_bits(&s->gb, 24));
s->ac_pred = get_bits1(&s->gb);
- if(s->inter_intra_pred){
- s->h263_aic_dir= get_vlc2(&s->gb, ff_inter_intra_vlc.table, INTER_INTRA_VLC_BITS, 1);
-// printf("%d%d %d %d/", s->ac_pred, s->h263_aic_dir, s->mb_x, s->mb_y);
+ if (s->inter_intra_pred) {
+ s->h263_aic_dir = get_vlc2(&s->gb, ff_inter_intra_vlc.table,
+ INTER_INTRA_VLC_BITS, 1);
+ ff_dlog(s->avctx, "%d%d %d %d/",
+ s->ac_pred, s->h263_aic_dir, s->mb_x, s->mb_y);
}
- if(s->per_mb_rl_table && cbp){
- s->rl_table_index = decode012(&s->gb);
+ if (s->per_mb_rl_table && cbp) {
+ s->rl_table_index = decode012(&s->gb);
s->rl_chroma_table_index = s->rl_table_index;
}
- s->dsp.clear_blocks(s->block[0]);
+ s->bdsp.clear_blocks(s->block[0]);
for (i = 0; i < 6; i++) {
- if (ff_msmpeg4_decode_block(s, block[i], i, (cbp >> (5 - i)) & 1, NULL) < 0)
- {
- av_log(s->avctx, AV_LOG_ERROR, "\nerror while decoding intra block: %d x %d (%d)\n", s->mb_x, s->mb_y, i);
- return -1;
+ if ((ret = ff_msmpeg4_decode_block(s, block[i], i, (cbp >> (5 - i)) & 1, NULL)) < 0) {
+ av_log(s->avctx, AV_LOG_ERROR,
+ "\nerror while decoding intra block: %d x %d (%d)\n",
+ s->mb_x, s->mb_y, i);
+ return ret;
}
}
}
return 0;
}
-static av_cold int wmv2_decode_init(AVCodecContext *avctx){
- Wmv2Context * const w= avctx->priv_data;
-
- if(avctx->idct_algo==FF_IDCT_AUTO){
- avctx->idct_algo=FF_IDCT_WMV2;
- }
+static av_cold int wmv2_decode_init(AVCodecContext *avctx)
+{
+ Wmv2Context *const w = avctx->priv_data;
+ int ret;
- if(ff_h263_decode_init(avctx) < 0)
- return -1;
+ if ((ret = ff_msmpeg4_decode_init(avctx)) < 0)
+ return ret;
ff_wmv2_common_init(w);
- ff_intrax8_common_init(&w->x8,&w->s);
-
- return 0;
+ return ff_intrax8_common_init(avctx, &w->x8, &w->s.idsp,
+ w->s.block, w->s.block_last_index,
+ w->s.mb_width, w->s.mb_height);
}
static av_cold int wmv2_decode_end(AVCodecContext *avctx)
return ff_h263_decode_end(avctx);
}
-AVCodec wmv2_decoder = {
- "wmv2",
- CODEC_TYPE_VIDEO,
- CODEC_ID_WMV2,
- sizeof(Wmv2Context),
- wmv2_decode_init,
- NULL,
- wmv2_decode_end,
- ff_h263_decode_frame,
- CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
- .long_name = NULL_IF_CONFIG_SMALL("Windows Media Video 8"),
+AVCodec ff_wmv2_decoder = {
+ .name = "wmv2",
+ .long_name = NULL_IF_CONFIG_SMALL("Windows Media Video 8"),
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_WMV2,
+ .priv_data_size = sizeof(Wmv2Context),
+ .init = wmv2_decode_init,
+ .close = wmv2_decode_end,
+ .decode = ff_h263_decode_frame,
+ .capabilities = AV_CODEC_CAP_DRAW_HORIZ_BAND | AV_CODEC_CAP_DR1,
+ .pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_YUV420P,
+ AV_PIX_FMT_NONE },
};
projects / ffmpeg / blobdiff