* Copyright (c) 2000,2001 Fabrice Bellard
* Copyright (c) 2002-2004 Michael Niedermayer
*
- * 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/rv10.c
+ * @file
* RV10/RV20 decoder
*/
+#include "libavutil/imgutils.h"
#include "avcodec.h"
#include "dsputil.h"
#include "mpegvideo.h"
+#include "mpeg4video.h"
+#include "h263.h"
//#define DEBUG
if(!marker) av_log(s->avctx, AV_LOG_ERROR, "marker missing\n");
pb_frame = get_bits1(&s->gb);
- dprintf(s->avctx, "pict_type=%d pb_frame=%d\n", s->pict_type, pb_frame);
+ av_dlog(s->avctx, "pict_type=%d pb_frame=%d\n", s->pict_type, pb_frame);
if (pb_frame){
av_log(s->avctx, AV_LOG_ERROR, "pb frame not supported\n");
s->last_dc[0] = get_bits(&s->gb, 8);
s->last_dc[1] = get_bits(&s->gb, 8);
s->last_dc[2] = get_bits(&s->gb, 8);
- dprintf(s->avctx, "DC:%d %d %d\n", s->last_dc[0],
+ av_dlog(s->avctx, "DC:%d %d %d\n", s->last_dc[0],
s->last_dc[1], s->last_dc[2]);
}
}
new_w= 4*((uint8_t*)s->avctx->extradata)[6+2*f];
new_h= 4*((uint8_t*)s->avctx->extradata)[7+2*f];
}else{
- new_w= s->width; //FIXME wrong we of course must save the original in the context
- new_h= s->height;
+ new_w= s->orig_width ;
+ new_h= s->orig_height;
}
if(new_w != s->width || new_h != s->height){
av_log(s->avctx, AV_LOG_DEBUG, "attempting to change resolution to %dx%d\n", new_w, new_h);
- if (avcodec_check_dimensions(s->avctx, new_w, new_h) < 0)
+ if (av_image_check_size(new_w, new_h, 0, s->avctx) < 0)
return -1;
MPV_common_end(s);
avcodec_set_dimensions(s->avctx, new_w, new_h);
s->out_format = FMT_H263;
s->codec_id= avctx->codec_id;
- s->width = avctx->coded_width;
- s->height = avctx->coded_height;
+ s->orig_width = s->width = avctx->coded_width;
+ s->orig_height= s->height = avctx->coded_height;
s->h263_long_vectors= ((uint8_t*)avctx->extradata)[3] & 1;
avctx->sub_id= AV_RB32((uint8_t*)avctx->extradata + 4);
}
static int rv10_decode_packet(AVCodecContext *avctx,
- const uint8_t *buf, int buf_size)
+ const uint8_t *buf, int buf_size, int buf_size2)
{
MpegEncContext *s = avctx->priv_data;
int mb_count, mb_pos, left, start_mb_x;
ff_er_frame_start(s);
}
- dprintf(avctx, "qscale=%d\n", s->qscale);
+ av_dlog(avctx, "qscale=%d\n", s->qscale);
/* default quantization values */
if(s->codec_id== CODEC_ID_RV10){
for(s->mb_num_left= mb_count; s->mb_num_left>0; s->mb_num_left--) {
int ret;
ff_update_block_index(s);
- dprintf(avctx, "**mb x=%d y=%d\n", s->mb_x, s->mb_y);
+ av_dlog(avctx, "**mb x=%d y=%d\n", s->mb_x, s->mb_y);
s->mv_dir = MV_DIR_FORWARD;
s->mv_type = MV_TYPE_16X16;
ret=ff_h263_decode_mb(s, s->block);
+ if (ret != SLICE_ERROR && s->gb.size_in_bits < get_bits_count(&s->gb) && 8*buf_size2 >= get_bits_count(&s->gb)){
+ av_log(avctx, AV_LOG_DEBUG, "update size from %d to %d\n", s->gb.size_in_bits, 8*buf_size2);
+ s->gb.size_in_bits= 8*buf_size2;
+ ret= SLICE_OK;
+ }
+
if (ret == SLICE_ERROR || s->gb.size_in_bits < get_bits_count(&s->gb)) {
av_log(s->avctx, AV_LOG_ERROR, "ERROR at MB %d %d\n", s->mb_x, s->mb_y);
return -1;
ff_er_add_slice(s, start_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, AC_END|DC_END|MV_END);
- return buf_size;
+ return s->gb.size_in_bits;
}
static int get_slice_offset(AVCodecContext *avctx, const uint8_t *buf, int n)
int slice_count;
const uint8_t *slices_hdr = NULL;
- dprintf(avctx, "*****frame %d size=%d\n", avctx->frame_number, buf_size);
+ av_dlog(avctx, "*****frame %d size=%d\n", avctx->frame_number, buf_size);
/* no supplementary picture */
if (buf_size == 0) {
for(i=0; i<slice_count; i++){
int offset= get_slice_offset(avctx, slices_hdr, i);
- int size;
+ int size, size2;
if(i+1 == slice_count)
size= buf_size - offset;
else
size= get_slice_offset(avctx, slices_hdr, i+1) - offset;
- rv10_decode_packet(avctx, buf+offset, size);
+ if(i+2 >= slice_count)
+ size2= buf_size - offset;
+ else
+ size2= get_slice_offset(avctx, slices_hdr, i+2) - offset;
+
+ if(rv10_decode_packet(avctx, buf+offset, size, size2) > 8*size)
+ i++;
}
if(s->current_picture_ptr != NULL && s->mb_y>=s->mb_height){
return buf_size;
}
-AVCodec rv10_decoder = {
+AVCodec ff_rv10_decoder = {
"rv10",
- CODEC_TYPE_VIDEO,
+ AVMEDIA_TYPE_VIDEO,
CODEC_ID_RV10,
sizeof(MpegEncContext),
rv10_decode_init,
rv10_decode_end,
rv10_decode_frame,
CODEC_CAP_DR1,
+ .max_lowres = 3,
.long_name = NULL_IF_CONFIG_SMALL("RealVideo 1.0"),
.pix_fmts= ff_pixfmt_list_420,
};
-AVCodec rv20_decoder = {
+AVCodec ff_rv20_decoder = {
"rv20",
- CODEC_TYPE_VIDEO,
+ AVMEDIA_TYPE_VIDEO,
CODEC_ID_RV20,
sizeof(MpegEncContext),
rv10_decode_init,
rv10_decode_frame,
CODEC_CAP_DR1 | CODEC_CAP_DELAY,
.flush= ff_mpeg_flush,
+ .max_lowres = 3,
.long_name = NULL_IF_CONFIG_SMALL("RealVideo 2.0"),
.pix_fmts= ff_pixfmt_list_420,
};
projects / ffmpeg / blobdiff