*
* SVQ1 Encoder (c) 2004 Mike Melanson <melanson@pcisys.net>
*
- * 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/svq1.c
+ * @file
* Sorenson Vector Quantizer #1 (SVQ1) video codec.
* For more information of the SVQ1 algorithm, visit:
* http://www.pcisys.net/~melanson/codecs/
uint8_t *current, *previous;
int result, i, x, y, width, height;
AVFrame *pict = data;
+ svq1_pmv *pmv;
/* initialize bit buffer */
init_get_bits(&s->gb,buf,buf_size*8);
//this should be removed after libavcodec can handle more flexible picture types & ordering
if(s->pict_type==FF_B_TYPE && s->last_picture_ptr==NULL) return buf_size;
+#if FF_API_HURRY_UP
if(avctx->hurry_up && s->pict_type==FF_B_TYPE) return buf_size;
+#endif
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)
if(MPV_frame_start(s, avctx) < 0)
return -1;
+ pmv = av_malloc((FFALIGN(s->width, 16)/8 + 3) * sizeof(*pmv));
+ if (!pmv)
+ return -1;
+
/* decode y, u and v components */
for (i=0; i < 3; i++) {
int linesize;
if (i == 0) {
- width = (s->width+15)&~15;
- height = (s->height+15)&~15;
+ width = FFALIGN(s->width, 16);
+ height = FFALIGN(s->height, 16);
linesize= s->linesize;
} else {
if(s->flags&CODEC_FLAG_GRAY) break;
- width = (s->width/4+15)&~15;
- height = (s->height/4+15)&~15;
+ width = FFALIGN(s->width/4, 16);
+ height = FFALIGN(s->height/4, 16);
linesize= s->uvlinesize;
}
//#ifdef DEBUG_SVQ1
av_log(s->avctx, AV_LOG_INFO, "Error in svq1_decode_block %i (keyframe)\n",result);
//#endif
- return result;
+ goto err;
}
}
current += 16*linesize;
}
} else {
- svq1_pmv pmv[width/8+3];
/* delta frame */
memset (pmv, 0, ((width / 8) + 3) * sizeof(svq1_pmv));
#ifdef DEBUG_SVQ1
av_log(s->avctx, AV_LOG_INFO, "Error in svq1_decode_delta_block %i\n",result);
#endif
- return result;
+ goto err;
}
}
MPV_frame_end(s);
*data_size=sizeof(AVFrame);
- return buf_size;
+ result = buf_size;
+err:
+ av_free(pmv);
+ return result;
}
static av_cold int svq1_decode_init(AVCodecContext *avctx)
{
MpegEncContext *s = avctx->priv_data;
int i;
+ int offset = 0;
MPV_decode_defaults(s);
s->flags= avctx->flags;
if (MPV_common_init(s) < 0) return -1;
- init_vlc(&svq1_block_type, 2, 4,
+ INIT_VLC_STATIC(&svq1_block_type, 2, 4,
&ff_svq1_block_type_vlc[0][1], 2, 1,
- &ff_svq1_block_type_vlc[0][0], 2, 1, INIT_VLC_USE_STATIC);
+ &ff_svq1_block_type_vlc[0][0], 2, 1, 6);
- init_vlc(&svq1_motion_component, 7, 33,
+ INIT_VLC_STATIC(&svq1_motion_component, 7, 33,
&mvtab[0][1], 2, 1,
- &mvtab[0][0], 2, 1, INIT_VLC_USE_STATIC);
+ &mvtab[0][0], 2, 1, 176);
for (i = 0; i < 6; i++) {
+ static const uint8_t sizes[2][6] = {{14, 10, 14, 18, 16, 18}, {10, 10, 14, 14, 14, 16}};
+ static VLC_TYPE table[168][2];
+ svq1_intra_multistage[i].table = &table[offset];
+ svq1_intra_multistage[i].table_allocated = sizes[0][i];
+ offset += sizes[0][i];
init_vlc(&svq1_intra_multistage[i], 3, 8,
&ff_svq1_intra_multistage_vlc[i][0][1], 2, 1,
- &ff_svq1_intra_multistage_vlc[i][0][0], 2, 1, INIT_VLC_USE_STATIC);
+ &ff_svq1_intra_multistage_vlc[i][0][0], 2, 1, INIT_VLC_USE_NEW_STATIC);
+ svq1_inter_multistage[i].table = &table[offset];
+ svq1_inter_multistage[i].table_allocated = sizes[1][i];
+ offset += sizes[1][i];
init_vlc(&svq1_inter_multistage[i], 3, 8,
&ff_svq1_inter_multistage_vlc[i][0][1], 2, 1,
- &ff_svq1_inter_multistage_vlc[i][0][0], 2, 1, INIT_VLC_USE_STATIC);
+ &ff_svq1_inter_multistage_vlc[i][0][0], 2, 1, INIT_VLC_USE_NEW_STATIC);
}
- init_vlc(&svq1_intra_mean, 8, 256,
+ INIT_VLC_STATIC(&svq1_intra_mean, 8, 256,
&ff_svq1_intra_mean_vlc[0][1], 4, 2,
- &ff_svq1_intra_mean_vlc[0][0], 4, 2, INIT_VLC_USE_STATIC);
+ &ff_svq1_intra_mean_vlc[0][0], 4, 2, 632);
- init_vlc(&svq1_inter_mean, 9, 512,
+ INIT_VLC_STATIC(&svq1_inter_mean, 9, 512,
&ff_svq1_inter_mean_vlc[0][1], 4, 2,
- &ff_svq1_inter_mean_vlc[0][0], 4, 2, INIT_VLC_USE_STATIC);
+ &ff_svq1_inter_mean_vlc[0][0], 4, 2, 1434);
return 0;
}
}
-AVCodec svq1_decoder = {
+AVCodec ff_svq1_decoder = {
"svq1",
- CODEC_TYPE_VIDEO,
+ AVMEDIA_TYPE_VIDEO,
CODEC_ID_SVQ1,
sizeof(MpegEncContext),
svq1_decode_init,
svq1_decode_frame,
CODEC_CAP_DR1,
.flush= ff_mpeg_flush,
- .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV410P, PIX_FMT_NONE},
- .long_name= NULL_IF_CONFIG_SMALL("Sorenson Vector Quantizer 1"),
+ .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV410P, PIX_FMT_NONE},
+ .long_name= NULL_IF_CONFIG_SMALL("Sorenson Vector Quantizer 1 / Sorenson Video 1 / SVQ1"),
};
projects / ffmpeg / blobdiff