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field pic decoding cleanup

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Originally committed as revision 1686 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2003-03-16 20:22:22 +00:00
parent 1c6dcb0f42
commit b536d0aad2
8 changed files with 146 additions and 93 deletions
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10
libavcodec/avcodec.h
View File

@ -187,6 +187,12 @@ static const int Motion_Est_QTab[] = { ME_ZERO, ME_PHODS, ME_LOG,
#define CODEC_CAP_TRUNCATED 0x0008
#define FF_COMMON_FRAME \
/**\
* pointer to the picture planes.\
* this might be different from the first allocated byte\
* - encoding: \
* - decoding: \
*/\
uint8_t *data[4];\
int linesize[4];\
/**\
@ -306,8 +312,8 @@ static const int Motion_Est_QTab[] = { ME_ZERO, ME_PHODS, ME_LOG,
#define FF_BUFFER_TYPE_INTERNAL 1
#define FF_BUFFER_TYPE_USER 2 // Direct rendering buffers
#define FF_BUFFER_TYPE_SHARED 4 // input frame for encoding(wont be dealloced)
#define FF_BUFFER_TYPE_USER 2 ///< Direct rendering buffers
#define FF_BUFFER_TYPE_SHARED 4 ///< buffer from somewher else, dont dealloc
#define FF_I_TYPE 1 // Intra

2
libavcodec/error_resilience.c
View File

@ -534,7 +534,7 @@ score_sum+= best_score;
static int is_intra_more_likely(MpegEncContext *s){
int is_intra_likely, i, j, undamaged_count, skip_amount, mb_x, mb_y;
if(s->last_picture.data[0]==NULL) return 1; //no previous frame available -> use spatial prediction
if(s->last_picture_ptr==NULL) return 1; //no previous frame available -> use spatial prediction
undamaged_count=0;
for(i=0; i<s->mb_num; i++){

6
libavcodec/h263dec.c
View File

@ -621,7 +621,7 @@ retry:
s->current_picture.key_frame= s->pict_type == I_TYPE;
/* skip b frames if we dont have reference frames */
if(s->last_picture.data[0]==NULL && s->pict_type==B_TYPE) return get_consumed_bytes(s, buf_size);
if(s->last_picture_ptr==NULL && s->pict_type==B_TYPE) return get_consumed_bytes(s, buf_size);
/* skip b frames if we are in a hurry */
if(avctx->hurry_up && s->pict_type==B_TYPE) return get_consumed_bytes(s, buf_size);
/* skip everything if we are in a hurry>=5 */
@ -731,7 +731,7 @@ retry:
MPV_frame_end(s);
if((avctx->debug&FF_DEBUG_VIS_MV) && s->last_picture.data[0]){
if((avctx->debug&FF_DEBUG_VIS_MV) && s->last_picture_ptr){
const int shift= 1 + s->quarter_sample;
int mb_y;
uint8_t *ptr= s->last_picture.data[0];
@ -789,7 +789,7 @@ retry:
avctx->frame_number = s->picture_number - 1;
/* dont output the last pic after seeking */
if(s->last_picture.data[0] || s->low_delay)
if(s->last_picture_ptr || s->low_delay)
*data_size = sizeof(AVFrame);
#ifdef PRINT_FRAME_TIME
printf("%Ld\n", rdtsc()-time);

39
libavcodec/mpeg12.c
View File

@ -229,7 +229,7 @@ static void mpeg1_encode_sequence_header(MpegEncContext *s)
put_bits(&s->pb, 4, s->aspect_ratio_info);
put_bits(&s->pb, 4, s->frame_rate_index);
v = s->bit_rate / 400;
v = (s->bit_rate + 399) / 400;
if (v > 0x3ffff)
v = 0x3ffff;
put_bits(&s->pb, 18, v);
@ -1803,7 +1803,8 @@ static int mpeg_decode_slice(AVCodecContext *avctx,
memset(s->last_mv, 0, sizeof(s->last_mv));
/* start frame decoding */
if (s->first_slice && (s->first_field || s->picture_structure==PICT_FRAME)) {
if (s->first_slice) {
if(s->first_field || s->picture_structure==PICT_FRAME){
if(MPV_frame_start(s, avctx) < 0)
return DECODE_SLICE_FATAL_ERROR;
/* first check if we must repeat the frame */
@ -1829,6 +1830,15 @@ static int mpeg_decode_slice(AVCodecContext *avctx,
s->intra_dc_precision, s->picture_structure, s->frame_pred_frame_dct, s->concealment_motion_vectors,
s->q_scale_type, s->intra_vlc_format, s->repeat_first_field, s->chroma_420_type ? "420" :"");
}
}else{ //second field
int i;
for(i=0; i<4; i++){
s->current_picture.data[i] = s->current_picture_ptr->data[i];
if(s->picture_structure == PICT_BOTTOM_FIELD){
s->current_picture.data[i] += s->current_picture_ptr->linesize[i];
}
}
}
}
s->first_slice = 0;
@ -1865,27 +1875,8 @@ static int mpeg_decode_slice(AVCodecContext *avctx,
dprintf("ret=%d\n", ret);
if (ret < 0)
return -1;
//printf("%d %d\n", s->mb_x, s->mb_y);
//FIXME this isnt the most beautifull way to solve the problem ...
if(s->picture_structure!=PICT_FRAME){
if(s->picture_structure == PICT_BOTTOM_FIELD){
s->current_picture.data[0] += s->linesize;
s->current_picture.data[1] += s->uvlinesize;
s->current_picture.data[2] += s->uvlinesize;
}
s->linesize *= 2;
s->uvlinesize *= 2;
}
MPV_decode_mb(s, s->block);
if(s->picture_structure!=PICT_FRAME){
s->linesize /= 2;
s->uvlinesize /= 2;
if(s->picture_structure == PICT_BOTTOM_FIELD){
s->current_picture.data[0] -= s->linesize;
s->current_picture.data[1] -= s->uvlinesize;
s->current_picture.data[2] -= s->uvlinesize;
}
}
if (++s->mb_x >= s->mb_width) {
if(s->picture_structure==PICT_FRAME){
@ -1945,7 +1936,7 @@ eos: //end of slice
s->picture_number++;
/* latency of 1 frame for I and P frames */
/* XXX: use another variable than picture_number */
if (s->last_picture.data[0] == NULL) {
if (s->last_picture_ptr == NULL) {
return DECODE_SLICE_OK;
} else {
*pict= *(AVFrame*)&s->last_picture;
@ -2196,7 +2187,7 @@ static int mpeg_decode_frame(AVCodecContext *avctx,
start_code <= SLICE_MAX_START_CODE) {
/* skip b frames if we dont have reference frames */
if(s2->last_picture.data[0]==NULL && s2->pict_type==B_TYPE) break;
if(s2->last_picture_ptr==NULL && s2->pict_type==B_TYPE) break;
/* skip b frames if we are in a hurry */
if(avctx->hurry_up && s2->pict_type==B_TYPE) break;
/* skip everything if we are in a hurry>=5 */

143
libavcodec/mpegvideo.c
View File

@ -858,47 +858,58 @@ int MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx)
s->mb_skiped = 0;
/* mark&release old frames */
if (s->pict_type != B_TYPE && s->last_picture.data[0]) {
for(i=0; i<MAX_PICTURE_COUNT; i++){
//printf("%8X %d %d %X %X\n", s->picture[i].data[0], s->picture[i].type, i, s->next_picture.data[0], s->last_picture.data[0]);
if(s->picture[i].data[0] == s->last_picture.data[0]){
// s->picture[i].reference=0;
avctx->release_buffer(avctx, (AVFrame*)&s->picture[i]);
break;
}
}
assert(i<MAX_PICTURE_COUNT);
if (s->pict_type != B_TYPE && s->last_picture_ptr) {
avctx->release_buffer(avctx, (AVFrame*)s->last_picture_ptr);
/* release forgotten pictures */
/* if(mpeg124/h263) */
if(!s->encoding){
for(i=0; i<MAX_PICTURE_COUNT; i++){
if(s->picture[i].data[0] && s->picture[i].data[0] != s->next_picture.data[0] && s->picture[i].reference){
if(s->picture[i].data[0] && &s->picture[i] != s->next_picture_ptr && s->picture[i].reference){
fprintf(stderr, "releasing zombie picture\n");
avctx->release_buffer(avctx, (AVFrame*)&s->picture[i]);
}
}
}
}
alloc:
if(!s->encoding){
i= find_unused_picture(s, 0);
pic= (AVFrame*)&s->picture[i];
pic->reference= s->pict_type != B_TYPE;
pic->coded_picture_number= s->current_picture.coded_picture_number+1;
if(s->current_picture_ptr)
pic->coded_picture_number= s->current_picture_ptr->coded_picture_number+1;
alloc_picture(s, (Picture*)pic, 0);
s->current_picture= s->picture[i];
s->current_picture_ptr= &s->picture[i];
}
if (s->pict_type != B_TYPE) {
s->last_picture= s->next_picture;
s->next_picture= s->current_picture;
s->last_picture_ptr= s->next_picture_ptr;
s->next_picture_ptr= s->current_picture_ptr;
}
s->current_picture= *s->current_picture_ptr;
if(s->last_picture_ptr) s->last_picture= *s->last_picture_ptr;
if(s->next_picture_ptr) s->next_picture= *s->next_picture_ptr;
if(s->new_picture_ptr ) s->new_picture = *s->new_picture_ptr;
if(s->picture_structure!=PICT_FRAME){
int i;
for(i=0; i<4; i++){
if(s->picture_structure == PICT_BOTTOM_FIELD){
s->current_picture.data[i] += s->current_picture.linesize[i];
}
s->current_picture.linesize[i] *= 2;
s->last_picture.linesize[i] *=2;
s->next_picture.linesize[i] *=2;
}
}
if(s->pict_type != I_TYPE && s->last_picture.data[0]==NULL){
if(s->pict_type != I_TYPE && s->last_picture_ptr==NULL){
fprintf(stderr, "warning: first frame is no keyframe\n");
assert(s->pict_type != B_TYPE); //these should have been dropped if we dont have a reference
goto alloc;
@ -938,12 +949,8 @@ void MPV_frame_end(MpegEncContext *s)
if(s->pict_type!=B_TYPE){
s->last_non_b_pict_type= s->pict_type;
}
s->current_picture.quality= s->qscale; //FIXME get average of qscale_table
s->current_picture.pict_type= s->pict_type;
s->current_picture.key_frame= s->pict_type == I_TYPE;
/* copy back current_picture variables */
#if 0
/* copy back current_picture variables */
for(i=0; i<MAX_PICTURE_COUNT; i++){
if(s->picture[i].data[0] == s->current_picture.data[0]){
s->picture[i]= s->current_picture;
@ -951,6 +958,10 @@ void MPV_frame_end(MpegEncContext *s)
}
}
assert(i<MAX_PICTURE_COUNT);
#endif
s->current_picture_ptr->quality= s->qscale; //FIXME get average of qscale_table
s->current_picture_ptr->pict_type= s->pict_type;
s->current_picture_ptr->key_frame= s->pict_type == I_TYPE;
/* release non refernce frames */
for(i=0; i<MAX_PICTURE_COUNT; i++){
@ -969,6 +980,13 @@ void MPV_frame_end(MpegEncContext *s)
}
printf("pict type: %d\n", s->pict_type);
}
// clear copies, to avoid confusion
#if 0
memset(&s->last_picture, 0, sizeof(Picture));
memset(&s->next_picture, 0, sizeof(Picture));
memset(&s->current_picture, 0, sizeof(Picture));
#endif
}
#ifdef CONFIG_ENCODERS
@ -1038,6 +1056,12 @@ static int load_input_picture(MpegEncContext *s, AVFrame *pic_arg){
pic->reference= 1;
alloc_picture(s, (Picture*)pic, 0);
for(i=0; i<4; i++){
/* the input will be 16 pixels to the right relative to the actual buffer start
* and the current_pic, so the buffer can be reused, yes its not beatifull
*/
pic->data[i]+= 16;
}
if( pic->data[0] == pic_arg->data[0]
&& pic->data[1] == pic_arg->data[1]
@ -1100,7 +1124,7 @@ static void select_input_picture(MpegEncContext *s){
/* set next picture types & ordering */
if(s->reordered_input_picture[0]==NULL && s->input_picture[0]){
if(/*s->picture_in_gop_number >= s->gop_size ||*/ s->next_picture.data[0]==NULL || s->intra_only){
if(/*s->picture_in_gop_number >= s->gop_size ||*/ s->next_picture_ptr==NULL || s->intra_only){
s->reordered_input_picture[0]= s->input_picture[0];
s->reordered_input_picture[0]->pict_type= I_TYPE;
s->reordered_input_picture[0]->coded_picture_number= coded_pic_num;
@ -1174,19 +1198,22 @@ static void select_input_picture(MpegEncContext *s){
}
if(s->reordered_input_picture[0]){
s->reordered_input_picture[0]->reference= s->reordered_input_picture[0]->pict_type!=B_TYPE;
s->reordered_input_picture[0]->reference= s->reordered_input_picture[0]->pict_type!=B_TYPE;
s->new_picture= *s->reordered_input_picture[0];
if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_SHARED){
// input is a shared pix, so we cant modifiy it -> alloc a new one & ensure that the shared one is reuseable
int i= find_unused_picture(s, 0);
Picture *pic= &s->picture[i];
s->new_picture= *s->reordered_input_picture[0];
/* mark us unused / free shared pic */
for(i=0; i<4; i++)
s->reordered_input_picture[0]->data[i]= NULL;
s->reordered_input_picture[0]->type= 0;
//FIXME bad, copy * except
pic->pict_type = s->reordered_input_picture[0]->pict_type;
pic->quality = s->reordered_input_picture[0]->quality;
pic->coded_picture_number = s->reordered_input_picture[0]->coded_picture_number;
@ -1194,18 +1221,20 @@ static void select_input_picture(MpegEncContext *s){
alloc_picture(s, pic, 0);
s->current_picture= *pic;
s->current_picture_ptr= pic;
}else{
// input is not a shared pix -> reuse buffer for current_pix
assert( s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_USER
|| s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
s->new_picture= *s->reordered_input_picture[0];
s->current_picture_ptr= s->reordered_input_picture[0];
for(i=0; i<4; i++){
s->reordered_input_picture[0]->data[i]-=16; //FIXME dirty
//reverse the +16 we did before storing the input
s->current_picture_ptr->data[i]-=16;
}
s->current_picture= *s->reordered_input_picture[0];
}
s->current_picture= *s->current_picture_ptr;
s->picture_number= s->new_picture.display_picture_number;
//printf("dpn:%d\n", s->picture_number);
@ -1260,6 +1289,10 @@ int MPV_encode_picture(AVCodecContext *avctx,
if(s->flags&CODEC_FLAG_PASS1)
ff_write_pass1_stats(s);
for(i=0; i<4; i++){
avctx->error[i] += s->current_picture_ptr->error[i];
}
}
s->input_picture_number++;
@ -1269,10 +1302,6 @@ int MPV_encode_picture(AVCodecContext *avctx,
s->total_bits += s->frame_bits;
avctx->frame_bits = s->frame_bits;
for(i=0; i<4; i++){
avctx->error[i] += s->current_picture.error[i];
}
return pbBufPtr(&s->pb) - s->pb.buf;
}
@ -1523,15 +1552,15 @@ if(s->quarter_sample)
src_y = clip(src_y, -16, height);
if (src_y == height)
dxy &= ~2;
linesize = s->linesize << field_based;
uvlinesize = s->uvlinesize << field_based;
linesize = s->current_picture.linesize[0] << field_based;
uvlinesize = s->current_picture.linesize[1] << field_based;
ptr = ref_picture[0] + (src_y * linesize) + (src_x) + src_offset;
dest_y += dest_offset;
if(s->flags&CODEC_FLAG_EMU_EDGE){
if(src_x<0 || src_y<0 || src_x + (motion_x&1) + 16 > s->h_edge_pos
|| src_y + (motion_y&1) + h > v_edge_pos){
ff_emulated_edge_mc(s, ptr - src_offset, s->linesize, 17, 17+field_based,
ff_emulated_edge_mc(s, ptr - src_offset, s->linesize, 17, 17+field_based, //FIXME linesize? and uv below
src_x, src_y<<field_based, s->h_edge_pos, s->v_edge_pos);
ptr= s->edge_emu_buffer + src_offset;
emu=1;
@ -1864,10 +1893,10 @@ static inline void MPV_motion(MpegEncContext *s,
} else {
int offset;
if(s->picture_structure == s->field_select[dir][0] + 1 || s->pict_type == B_TYPE || s->first_field){
offset= s->field_select[dir][0] ? s->linesize/2 : 0;
offset= s->field_select[dir][0] ? s->linesize : 0;
}else{
ref_picture= s->current_picture.data;
offset= s->field_select[dir][0] ? s->linesize/2 : -s->linesize/2;
offset= s->field_select[dir][0] ? s->linesize : -s->linesize;
}
mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
@ -2023,6 +2052,8 @@ void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
int dct_linesize, dct_offset;
op_pixels_func (*op_pix)[4];
qpel_mc_func (*op_qpix)[16];
const int linesize= s->current_picture.linesize[0]; //not s->linesize as this woulnd be wrong for field pics
const int uvlinesize= s->current_picture.linesize[1];
/* avoid copy if macroblock skipped in last frame too */
if (s->pict_type != B_TYPE) {
@ -2061,17 +2092,17 @@ void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
dest_cb = s->current_picture.data[1] + mb_x * 8;
dest_cr = s->current_picture.data[2] + mb_x * 8;
}else{
dest_y = s->current_picture.data[0] + (mb_y * 16* s->linesize ) + mb_x * 16;
dest_cb = s->current_picture.data[1] + (mb_y * 8 * s->uvlinesize) + mb_x * 8;
dest_cr = s->current_picture.data[2] + (mb_y * 8 * s->uvlinesize) + mb_x * 8;
dest_y = s->current_picture.data[0] + (mb_y * 16* linesize ) + mb_x * 16;
dest_cb = s->current_picture.data[1] + (mb_y * 8 * uvlinesize) + mb_x * 8;
dest_cr = s->current_picture.data[2] + (mb_y * 8 * uvlinesize) + mb_x * 8;
}
if (s->interlaced_dct) {
dct_linesize = s->linesize * 2;
dct_offset = s->linesize;
dct_linesize = linesize * 2;
dct_offset = linesize;
} else {
dct_linesize = s->linesize;
dct_offset = s->linesize * 8;
dct_linesize = linesize;
dct_offset = linesize * 8;
}
if (!s->mb_intra) {
@ -2108,8 +2139,8 @@ void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
add_dequant_dct(s, block[3], 3, dest_y + dct_offset + 8, dct_linesize);
if(!(s->flags&CODEC_FLAG_GRAY)){
add_dequant_dct(s, block[4], 4, dest_cb, s->uvlinesize);
add_dequant_dct(s, block[5], 5, dest_cr, s->uvlinesize);
add_dequant_dct(s, block[4], 4, dest_cb, uvlinesize);
add_dequant_dct(s, block[5], 5, dest_cr, uvlinesize);
}
} else if(s->codec_id != CODEC_ID_WMV2){
add_dct(s, block[0], 0, dest_y, dct_linesize);
@ -2118,8 +2149,8 @@ void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
add_dct(s, block[3], 3, dest_y + dct_offset + 8, dct_linesize);
if(!(s->flags&CODEC_FLAG_GRAY)){
add_dct(s, block[4], 4, dest_cb, s->uvlinesize);
add_dct(s, block[5], 5, dest_cr, s->uvlinesize);
add_dct(s, block[4], 4, dest_cb, uvlinesize);
add_dct(s, block[5], 5, dest_cr, uvlinesize);
}
}
#ifdef CONFIG_RISKY
@ -2136,8 +2167,8 @@ void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
put_dct(s, block[3], 3, dest_y + dct_offset + 8, dct_linesize);
if(!(s->flags&CODEC_FLAG_GRAY)){
put_dct(s, block[4], 4, dest_cb, s->uvlinesize);
put_dct(s, block[5], 5, dest_cr, s->uvlinesize);
put_dct(s, block[4], 4, dest_cb, uvlinesize);
put_dct(s, block[5], 5, dest_cr, uvlinesize);
}
}else{
s->dsp.idct_put(dest_y , dct_linesize, block[0]);
@ -2146,8 +2177,8 @@ void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
s->dsp.idct_put(dest_y + dct_offset + 8, dct_linesize, block[3]);
if(!(s->flags&CODEC_FLAG_GRAY)){
s->dsp.idct_put(dest_cb, s->uvlinesize, block[4]);
s->dsp.idct_put(dest_cr, s->uvlinesize, block[5]);
s->dsp.idct_put(dest_cb, uvlinesize, block[4]);
s->dsp.idct_put(dest_cr, uvlinesize, block[5]);
}
}
}
@ -2300,7 +2331,7 @@ static int pix_diff_vcmp16x8(uint8_t *s1, uint8_t*s2, int stride){ //FIXME move
*/
void ff_draw_horiz_band(MpegEncContext *s, int y, int h){
if ( s->avctx->draw_horiz_band
&& (s->last_picture.data[0] || s->low_delay) ) {
&& (s->last_picture_ptr || s->low_delay) ) {
uint8_t *src_ptr[3];
int offset;
h= FFMIN(h, s->height - y);

31
libavcodec/mpegvideo.h
View File

@ -238,10 +238,35 @@ typedef struct MpegEncContext {
Picture picture[MAX_PICTURE_COUNT]; ///< main picture buffer
Picture *input_picture[MAX_PICTURE_COUNT]; ///< next pictures on display order for encoding
Picture *reordered_input_picture[MAX_PICTURE_COUNT]; ///< pointer to the next pictures in codedorder for encoding
Picture last_picture; ///< previous picture
Picture next_picture; ///< previous picture (for bidir pred)
Picture new_picture; ///< source picture for encoding
/**
* copy of the previous picture structure.
* note, linesize & data, might not match the previous picture (for field pictures)
*/
Picture last_picture;
/**
* copy of the next picture structure.
* note, linesize & data, might not match the next picture (for field pictures)
*/
Picture next_picture;
/**
* copy of the source picture structure for encoding.
* note, linesize & data, might not match the source picture (for field pictures)
*/
Picture new_picture;
/**
* copy of the current picture structure.
* note, linesize & data, might not match the current picture (for field pictures)
*/
Picture current_picture; ///< buffer to store the decompressed current picture
Picture *last_picture_ptr; ///< pointer to the previous picture.
Picture *next_picture_ptr; ///< pointer to the next picture (for bidir pred)
Picture *new_picture_ptr; ///< pointer to the source picture for encoding
Picture *current_picture_ptr; ///< pointer to the current picture
int last_dc[3]; ///< last DC values for MPEG1
int16_t *dc_val[3]; ///< used for mpeg4 DC prediction, all 3 arrays must be continuous
int y_dc_scale, c_dc_scale;

2
libavcodec/svq1.c
View File

@ -1126,7 +1126,7 @@ static int svq1_decode_frame(AVCodecContext *avctx,
//FIXME this avoids some confusion for "B frames" without 2 references
//this should be removed after libavcodec can handle more flaxible picture types & ordering
if(s->pict_type==B_TYPE && s->last_picture.data[0]==NULL) return buf_size;
if(s->pict_type==B_TYPE && s->last_picture_ptr==NULL) return buf_size;
if(avctx->hurry_up && s->pict_type==B_TYPE) return buf_size;

6
libavcodec/utils.c
View File

@ -192,9 +192,9 @@ int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic){
memset(pic->base[i], 128, pic->linesize[i]*h>>v_shift);
if(s->flags&CODEC_FLAG_EMU_EDGE)
pic->data[i] = pic->base[i] + 16; //FIXME 16
pic->data[i] = pic->base[i];
else
pic->data[i] = pic->base[i] + (pic->linesize[i]*EDGE_WIDTH>>v_shift) + (EDGE_WIDTH>>h_shift) + 16; //FIXME 16
pic->data[i] = pic->base[i] + (pic->linesize[i]*EDGE_WIDTH>>v_shift) + (EDGE_WIDTH>>h_shift);
opaque->data[i]= pic->data[i];
}
@ -581,7 +581,7 @@ void avcodec_flush_buffers(AVCodecContext *avctx)
|| s->picture[i].type == FF_BUFFER_TYPE_USER))
avctx->release_buffer(avctx, (AVFrame*)&s->picture[i]);
}
s->last_picture.data[0] = s->next_picture.data[0] = NULL;
s->last_picture_ptr = s->next_picture_ptr = NULL;
break;
default:
//FIXME