/*
- * Copyright (c) 2003 The FFmpeg Project
+ * Copyright (c) 2003 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
*/
*
* You will know you have these parameters passed correctly when the decoder
* correctly decodes this file:
- * http://samples.mplayerhq.hu/V-codecs/SVQ3/Vertical400kbit.sorenson3.mov
+ * http://samples.libav.org/V-codecs/SVQ3/Vertical400kbit.sorenson3.mov
*/
#include "internal.h"
#include "dsputil.h"
61694, 68745, 77615, 89113,100253,109366,126635,141533
};
-
-void ff_svq3_luma_dc_dequant_idct_c(DCTELEM *output, DCTELEM *input, int qp)
-{
+void ff_svq3_luma_dc_dequant_idct_c(DCTELEM *output, DCTELEM *input, int qp){
const int qmul = svq3_dequant_coeff[qp];
#define stride 16
int i;
int temp[16];
- static const int x_offset[4] = {0, 1*stride, 4* stride, 5*stride};
+ static const uint8_t x_offset[4]={0, 1*stride, 4*stride, 5*stride};
- for (i = 0; i < 4; i++){
- const int z0= 13*(input[4*i+0] + input[4*i+1]);
- const int z1= 13*(input[4*i+0] - input[4*i+1]);
- const int z2= 7* input[4*i+2] - 17*input[4*i+3];
- const int z3= 17* input[4*i+2] + 7*input[4*i+3];
+ for(i=0; i<4; i++){
+ const int z0 = 13*(input[4*i+0] + input[4*i+2]);
+ const int z1 = 13*(input[4*i+0] - input[4*i+2]);
+ const int z2 = 7* input[4*i+1] - 17*input[4*i+3];
+ const int z3 = 17* input[4*i+1] + 7*input[4*i+3];
temp[4*i+0] = z0+z3;
temp[4*i+1] = z1+z2;
temp[4*i+3] = z0-z3;
}
- for (i = 0; i < 4; i++){
- const int offset = x_offset[i];
- const int z0 = 13*(temp[4*0+i] + temp[4*2+i]);
- const int z1 = 13*(temp[4*0+i] - temp[4*2+i]);
- const int z2 = 7* temp[4*1+i] - 17*temp[4*3+i];
- const int z3 = 17* temp[4*1+i] + 7*temp[4*3+i];
+ for(i=0; i<4; i++){
+ const int offset= x_offset[i];
+ const int z0= 13*(temp[4*0+i] + temp[4*2+i]);
+ const int z1= 13*(temp[4*0+i] - temp[4*2+i]);
+ const int z2= 7* temp[4*1+i] - 17*temp[4*3+i];
+ const int z3= 17* temp[4*1+i] + 7*temp[4*3+i];
- output[stride*0 +offset] = ((z0 + z3)*qmul + 0x80000) >> 20;
- output[stride*2 +offset] = ((z1 + z2)*qmul + 0x80000) >> 20;
- output[stride*8 +offset] = ((z1 - z2)*qmul + 0x80000) >> 20;
+ output[stride* 0+offset] = ((z0 + z3)*qmul + 0x80000) >> 20;
+ output[stride* 2+offset] = ((z1 + z2)*qmul + 0x80000) >> 20;
+ output[stride* 8+offset] = ((z1 - z2)*qmul + 0x80000) >> 20;
output[stride*10+offset] = ((z0 - z3)*qmul + 0x80000) >> 20;
}
}
src = pic->data[0] + mx + my*s->linesize;
if (emu) {
- ff_emulated_edge_mc(s->edge_emu_buffer, src, s->linesize, (width + 1), (height + 1),
+ s->dsp.emulated_edge_mc(s->edge_emu_buffer, src, s->linesize, (width + 1), (height + 1),
mx, my, s->h_edge_pos, s->v_edge_pos);
src = s->edge_emu_buffer;
}
src = pic->data[i] + mx + my*s->uvlinesize;
if (emu) {
- ff_emulated_edge_mc(s->edge_emu_buffer, src, s->uvlinesize, (width + 1), (height + 1),
+ s->dsp.emulated_edge_mc(s->edge_emu_buffer, src, s->uvlinesize, (width + 1), (height + 1),
mx, my, (s->h_edge_pos >> 1), (s->v_edge_pos >> 1));
src = s->edge_emu_buffer;
}
}
}
if (IS_INTRA16x16(mb_type)) {
- if (svq3_decode_block(&s->gb, h->mb, 0, 0)){
+ AV_ZERO128(h->mb_luma_dc+0);
+ AV_ZERO128(h->mb_luma_dc+8);
+ if (svq3_decode_block(&s->gb, h->mb_luma_dc, 0, 1)){
av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding intra luma dc\n");
return -1;
}
s->adaptive_quant, s->qscale, h->slice_num);
}
- /* for hurry_up == 5 */
+ /* for skipping the frame */
s->current_picture.pict_type = s->pict_type;
s->current_picture.key_frame = (s->pict_type == FF_I_TYPE);
/* Skip B-frames if we do not have reference frames. */
if (s->last_picture_ptr == NULL && s->pict_type == FF_B_TYPE)
return 0;
- /* Skip B-frames if we are in a hurry. */
- if (avctx->hurry_up && s->pict_type == FF_B_TYPE)
- return 0;
- /* Skip everything if we are in a hurry >= 5. */
- if (avctx->hurry_up >= 5)
- return 0;
if ( (avctx->skip_frame >= AVDISCARD_NONREF && s->pict_type == FF_B_TYPE)
||(avctx->skip_frame >= AVDISCARD_NONKEY && s->pict_type != FF_I_TYPE)
|| avctx->skip_frame >= AVDISCARD_ALL)
}
-AVCodec svq3_decoder = {
+AVCodec ff_svq3_decoder = {
"svq3",
AVMEDIA_TYPE_VIDEO,
CODEC_ID_SVQ3,
projects / ffmpeg / blobdiff