* H.26L/H.264/AVC/JVT/14496-10/... reference picture handling
* Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
*
- * 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
*/
/**
- * @file libavcodec/h264_refs.c
+ * @file
* H.264 / AVC / MPEG4 part10 reference picture handling.
* @author Michael Niedermayer <michaelni@gmx.at>
*/
MpegEncContext * const s = &h->s;
int i, len;
- if(h->slice_type_nos==FF_B_TYPE){
+ if(h->slice_type_nos==AV_PICTURE_TYPE_B){
Picture *sorted[32];
int cur_poc, list;
int lens[2];
for (i=0; i<h->ref_count[0]; i++) {
tprintf(h->s.avctx, "List0: %s fn:%d 0x%p\n", (h->default_ref_list[0][i].long_ref ? "LT" : "ST"), h->default_ref_list[0][i].pic_id, h->default_ref_list[0][i].data[0]);
}
- if(h->slice_type_nos==FF_B_TYPE){
+ if(h->slice_type_nos==AV_PICTURE_TYPE_B){
for (i=0; i<h->ref_count[1]; i++) {
tprintf(h->s.avctx, "List1: %s fn:%d 0x%p\n", (h->default_ref_list[1][i].long_ref ? "LT" : "ST"), h->default_ref_list[1][i].pic_id, h->default_ref_list[1][i].data[0]);
}
field[1].reference = PICT_BOTTOM_FIELD;
field[1].poc= field[1].field_poc[1];
- h->luma_weight[list][16+2*i] = h->luma_weight[list][16+2*i+1] = h->luma_weight[list][i];
- h->luma_offset[list][16+2*i] = h->luma_offset[list][16+2*i+1] = h->luma_offset[list][i];
+ h->luma_weight[16+2*i][list][0] = h->luma_weight[16+2*i+1][list][0] = h->luma_weight[i][list][0];
+ h->luma_weight[16+2*i][list][1] = h->luma_weight[16+2*i+1][list][1] = h->luma_weight[i][list][1];
for(j=0; j<2; j++){
- h->chroma_weight[list][16+2*i][j] = h->chroma_weight[list][16+2*i+1][j] = h->chroma_weight[list][i][j];
- h->chroma_offset[list][16+2*i][j] = h->chroma_offset[list][16+2*i+1][j] = h->chroma_offset[list][i][j];
+ h->chroma_weight[16+2*i][list][j][0] = h->chroma_weight[16+2*i+1][list][j][0] = h->chroma_weight[i][list][j][0];
+ h->chroma_weight[16+2*i][list][j][1] = h->chroma_weight[16+2*i+1][list][j][1] = h->chroma_weight[i][list][j][1];
}
}
}
- for(j=0; j<h->ref_count[1]; j++){
- for(i=0; i<h->ref_count[0]; i++)
- h->implicit_weight[j][16+2*i] = h->implicit_weight[j][16+2*i+1] = h->implicit_weight[j][i];
- memcpy(h->implicit_weight[16+2*j], h->implicit_weight[j], sizeof(*h->implicit_weight));
- memcpy(h->implicit_weight[16+2*j+1], h->implicit_weight[j], sizeof(*h->implicit_weight));
- }
}
/**
}
}
+void ff_generate_sliding_window_mmcos(H264Context *h) {
+ MpegEncContext * const s = &h->s;
+ assert(h->long_ref_count + h->short_ref_count <= h->sps.ref_frame_count);
+
+ h->mmco_index= 0;
+ if(h->short_ref_count && h->long_ref_count + h->short_ref_count == h->sps.ref_frame_count &&
+ !(FIELD_PICTURE && !s->first_field && s->current_picture_ptr->reference)) {
+ h->mmco[0].opcode= MMCO_SHORT2UNUSED;
+ h->mmco[0].short_pic_num= h->short_ref[ h->short_ref_count - 1 ]->frame_num;
+ h->mmco_index= 1;
+ if (FIELD_PICTURE) {
+ h->mmco[0].short_pic_num *= 2;
+ h->mmco[1].opcode= MMCO_SHORT2UNUSED;
+ h->mmco[1].short_pic_num= h->mmco[0].short_pic_num + 1;
+ h->mmco_index= 2;
+ }
+ }
+}
+
int ff_h264_execute_ref_pic_marking(H264Context *h, MMCO *mmco, int mmco_count){
MpegEncContext * const s = &h->s;
int i, av_uninit(j);
}
}
- if (h->long_ref_count + h->short_ref_count > h->sps.ref_frame_count){
+ if (h->long_ref_count + h->short_ref_count -
+ (h->short_ref[0] == s->current_picture_ptr) > h->sps.ref_frame_count){
/* We have too many reference frames, probably due to corrupted
* stream. Need to discard one frame. Prevents overrun of the
* short_ref and long_ref buffers.
*/
av_log(h->s.avctx, AV_LOG_ERROR,
- "number of reference frames exceeds max (probably "
- "corrupt input), discarding one\n");
+ "number of reference frames (%d+%d) exceeds max (%d; probably "
+ "corrupt input), discarding one\n",
+ h->long_ref_count, h->short_ref_count, h->sps.ref_frame_count);
if (h->long_ref_count && !h->short_ref_count) {
for (i = 0; i < 16; ++i)
}
h->mmco_index= i;
}else{
- assert(h->long_ref_count + h->short_ref_count <= h->sps.ref_frame_count);
-
- if(h->short_ref_count && h->long_ref_count + h->short_ref_count == h->sps.ref_frame_count &&
- !(FIELD_PICTURE && !s->first_field && s->current_picture_ptr->reference)) {
- h->mmco[0].opcode= MMCO_SHORT2UNUSED;
- h->mmco[0].short_pic_num= h->short_ref[ h->short_ref_count - 1 ]->frame_num;
- h->mmco_index= 1;
- if (FIELD_PICTURE) {
- h->mmco[0].short_pic_num *= 2;
- h->mmco[1].opcode= MMCO_SHORT2UNUSED;
- h->mmco[1].short_pic_num= h->mmco[0].short_pic_num + 1;
- h->mmco_index= 2;
- }
- }
+ ff_generate_sliding_window_mmcos(h);
}
}
projects / ffmpeg / blobdiff