AVCodecContext *avctx;
int bpp;
+ int alloc_bpp;
unsigned int decomp_size;
uint8_t* decomp_buf;
uint8_t pal[768];
return AVERROR_UNKNOWN;
}
- c->cur = av_realloc_f(c->cur, avctx->width * avctx->height, (c->bpp / 8));
- c->prev = av_realloc_f(c->prev, avctx->width * avctx->height, (c->bpp / 8));
+ if (c->alloc_bpp < c->bpp) {
+ c->cur = av_realloc_f(c->cur, avctx->width * avctx->height, (c->bpp / 8));
+ c->prev = av_realloc_f(c->prev, avctx->width * avctx->height, (c->bpp / 8));
+ c->alloc_bpp = c->bpp;
+ }
c->bx = (c->width + c->bw - 1) / c->bw;
c->by = (c->height+ c->bh - 1) / c->bh;
- if (!c->cur || !c->prev)
+ if (!c->cur || !c->prev) {
+ c->alloc_bpp = 0;
return AVERROR(ENOMEM);
+ }
memset(c->cur, 0, avctx->width * avctx->height * (c->bpp / 8));
memset(c->prev, 0, avctx->width * avctx->height * (c->bpp / 8));
c->decode_intra= decode_intra;
c->decomp_size = (avctx->width + 255) * 4 * (avctx->height + 64);
/* Allocate decompression buffer */
- if (c->decomp_size) {
- if (!(c->decomp_buf = av_mallocz(c->decomp_size))) {
- av_log(avctx, AV_LOG_ERROR,
- "Can't allocate decompression buffer.\n");
- return AVERROR(ENOMEM);
- }
+ c->decomp_buf = av_mallocz(c->decomp_size);
+ if (!c->decomp_buf) {
+ av_log(avctx, AV_LOG_ERROR,
+ "Can't allocate decompression buffer.\n");
+ return AVERROR(ENOMEM);
}
c->zstream.zalloc = Z_NULL;