*
* Copyright (c) 2009 Maxim Poliakovski
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg 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.
*
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg 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 Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*
* Generate a huffman codebook from the given descriptor
- * and convert it into the Libav VLC table.
+ * and convert it into the FFmpeg VLC table.
*
* @param[in] cb pointer to codebook descriptor
* @param[out] vlc where to place the generated VLC table
new_huff.xbits[i] = get_bits(gb, 4);
/* Have we got the same custom table? Rebuild if not. */
- if (ivi_huff_desc_cmp(&new_huff, &huff_tab->cust_desc)) {
+ if (ivi_huff_desc_cmp(&new_huff, &huff_tab->cust_desc) || !huff_tab->cust_tab.table) {
ivi_huff_desc_copy(&huff_tab->cust_desc, &new_huff);
if (huff_tab->cust_tab.table)
int p, b, t;
for (p = 0; p < 3; p++) {
+ if (planes[p].bands)
for (b = 0; b < planes[p].num_bands; b++) {
av_freep(&planes[p].bands[b].bufs[0]);
av_freep(&planes[p].bands[b].bufs[1]);
band->aheight = height_aligned;
band->bufs[0] = av_mallocz(buf_size);
band->bufs[1] = av_mallocz(buf_size);
+ band->bufsize = buf_size/2;
if (!band->bufs[0] || !band->bufs[1])
return AVERROR(ENOMEM);
t_width >>= 1;
t_height >>= 1;
}
+ if(t_width<=0 || t_height<=0)
+ return AVERROR(EINVAL);
for (b = 0; b < planes[p].num_bands; b++) {
band = &planes[p].bands[b];
tile->ref_mbs = 0;
if (p || b) {
- tile->ref_mbs = ref_tile->mbs;
+ if (tile->num_MBs <= ref_tile->num_MBs) {
+ tile->ref_mbs = ref_tile->mbs;
+ }else
+ av_log(NULL, AV_LOG_DEBUG, "Cannot use ref_tile, too few mbs\n");
ref_tile++;
}
AVCodecContext *avctx)
{
int mbn, blk, num_blocks, num_coeffs, blk_size, scan_pos, run, val,
- pos, is_intra, mc_type = 0, mv_x, mv_y, col_mask;
+ pos, is_intra, mc_type = 0, av_uninit(mv_x), av_uninit(mv_y), col_mask;
uint8_t col_flags[8];
int32_t prev_dc, trvec[64];
- uint32_t cbp, sym, lo, hi, quant, buf_offs, q;
+ uint32_t cbp, av_uninit(sym), lo, hi, quant, buf_offs, q;
IVIMbInfo *mb;
RVMapDesc *rvmap = band->rv_map;
ivi_mc_func mc_with_delta_func, mc_no_delta_func;
/* de-zigzag and dequantize */
scan_pos += run;
- if (scan_pos >= num_coeffs)
+ if (scan_pos >= (unsigned)num_coeffs)
break;
pos = band->scan[scan_pos];
trvec[0] = prev_dc;
col_flags[0] |= !!prev_dc;
}
-
+ if(band->transform_size > band->blk_size){
+ av_log(NULL, AV_LOG_ERROR, "Too large transform\n");
+ return AVERROR_INVALIDDATA;
+ }
/* apply inverse transform */
band->inv_transform(trvec, band->buf + buf_offs,
band->pitch, col_flags);
/* for intra blocks apply the dc slant transform */
/* for inter - perform the motion compensation without delta */
if (is_intra) {
- if (band->dc_transform)
band->dc_transform(&prev_dc, band->buf + buf_offs,
band->pitch, blk_size);
} else
mb->mv_y = ref_mb->mv_y;
}
need_mc |= mb->mv_x || mb->mv_y; /* tracking non-zero motion vectors */
+ {
+ int dmv_x, dmv_y, cx, cy;
+
+ dmv_x = mb->mv_x >> band->is_halfpel;
+ dmv_y = mb->mv_y >> band->is_halfpel;
+ cx = mb->mv_x & band->is_halfpel;
+ cy = mb->mv_y & band->is_halfpel;
+
+ if ( mb->xpos + dmv_x < 0
+ || mb->xpos + dmv_x + band->mb_size + cx > band->pitch
+ || mb->ypos + dmv_y < 0
+ || mb->ypos + dmv_y + band->mb_size + cy > band->aheight) {
+ av_log(avctx, AV_LOG_ERROR, "MV out of bounds\n");
+ return AVERROR_INVALIDDATA;
+ }
+ }
}
mb++;
idx2 = band->corr[i * 2 + 1];
FFSWAP(uint8_t, band->rv_map->runtab[idx1], band->rv_map->runtab[idx2]);
FFSWAP(int16_t, band->rv_map->valtab[idx1], band->rv_map->valtab[idx2]);
+ if (idx1 == band->rv_map->eob_sym || idx2 == band->rv_map->eob_sym)
+ band->rv_map->eob_sym ^= idx1 ^ idx2;
+ if (idx1 == band->rv_map->esc_sym || idx2 == band->rv_map->esc_sym)
+ band->rv_map->esc_sym ^= idx1 ^ idx2;
}
pos = get_bits_count(&ctx->gb);
tile->data_size = ivi_dec_tile_data_size(&ctx->gb);
if (!tile->data_size) {
av_log(avctx, AV_LOG_ERROR, "Tile data size is zero!\n");
- return AVERROR_INVALIDDATA;
+ result = AVERROR_INVALIDDATA;
+ break;
}
result = ctx->decode_mb_info(ctx, band, tile, avctx);
idx2 = band->corr[i*2+1];
FFSWAP(uint8_t, band->rv_map->runtab[idx1], band->rv_map->runtab[idx2]);
FFSWAP(int16_t, band->rv_map->valtab[idx1], band->rv_map->valtab[idx2]);
+ if (idx1 == band->rv_map->eob_sym || idx2 == band->rv_map->eob_sym)
+ band->rv_map->eob_sym ^= idx1 ^ idx2;
+ if (idx1 == band->rv_map->esc_sym || idx2 == band->rv_map->esc_sym)
+ band->rv_map->esc_sym ^= idx1 ^ idx2;
}
#ifdef DEBUG
//{ START_TIMER;
if (ctx->is_nonnull_frame(ctx)) {
+ ctx->buf_invalid[ctx->dst_buf] = 1;
for (p = 0; p < 3; p++) {
for (b = 0; b < ctx->planes[p].num_bands; b++) {
result = decode_band(ctx, &ctx->planes[p].bands[b], avctx);
}
}
}
+ ctx->buf_invalid[ctx->dst_buf] = 0;
}
+ if (ctx->buf_invalid[ctx->dst_buf])
+ return -1;
//STOP_TIMER("decode_planes"); }
av_log(avctx, AV_LOG_ERROR, "Buffer contains IP frames!\n");
}
+ if (!ctx->is_nonnull_frame(ctx))
+ return buf_size;
+
avcodec_set_dimensions(avctx, ctx->planes[0].width, ctx->planes[0].height);
- if ((result = ff_get_buffer(avctx, frame, 0)) < 0) {
- av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+ if ((result = ff_get_buffer(avctx, frame, 0)) < 0)
return result;
- }
if (ctx->is_scalable) {
if (avctx->codec_id == AV_CODEC_ID_INDEO4)
projects / ffmpeg / blobdiff