* Known FOURCCs: 'IV50'
*/
-#define ALT_BITSTREAM_READER_LE
+#define BITSTREAM_READER_LE
#include "avcodec.h"
#include "get_bits.h"
#include "dsputil.h"
*/
static int decode_gop_header(IVI5DecContext *ctx, AVCodecContext *avctx)
{
- int result, i, p, tile_size, pic_size_indx, mb_size, blk_size;
+ int result, i, p, tile_size, pic_size_indx, mb_size, blk_size, is_scalable;
int quant_mat, blk_size_changed = 0;
IVIBandDesc *band, *band1, *band2;
IVIPicConfig pic_conf;
/* num_levels * 3 + 1 */
pic_conf.luma_bands = get_bits(&ctx->gb, 2) * 3 + 1;
pic_conf.chroma_bands = get_bits1(&ctx->gb) * 3 + 1;
- ctx->is_scalable = pic_conf.luma_bands != 1 || pic_conf.chroma_bands != 1;
- if (ctx->is_scalable && (pic_conf.luma_bands != 4 || pic_conf.chroma_bands != 1)) {
+ is_scalable = pic_conf.luma_bands != 1 || pic_conf.chroma_bands != 1;
+ if (is_scalable && (pic_conf.luma_bands != 4 || pic_conf.chroma_bands != 1)) {
av_log(avctx, AV_LOG_ERROR, "Scalability: unsupported subdivision! Luma bands: %d, chroma bands: %d\n",
pic_conf.luma_bands, pic_conf.chroma_bands);
return -1;
return -1;
}
ctx->pic_conf = pic_conf;
+ ctx->is_scalable = is_scalable;
blk_size_changed = 1; /* force reallocation of the internal structures */
}
}
mb->mv_x = mb->mv_y = 0; /* no motion vector coded */
- if (band->inherit_mv){
+ if (band->inherit_mv && ref_mb){
/* motion vector inheritance */
if (mv_scale) {
mb->mv_x = ivi_scale_mv(ref_mb->mv_x, mv_scale);
}
}
} else {
- if (band->inherit_mv) {
+ if (band->inherit_mv && ref_mb) {
mb->type = ref_mb->type; /* copy mb_type from corresponding reference mb */
} else if (ctx->frame_type == FRAMETYPE_INTRA) {
mb->type = 0; /* mb_type is always INTRA for intra-frames */
if (!mb->type) {
mb->mv_x = mb->mv_y = 0; /* there is no motion vector in intra-macroblocks */
} else {
- if (band->inherit_mv){
+ if (band->inherit_mv && ref_mb){
/* motion vector inheritance */
if (mv_scale) {
mb->mv_x = ivi_scale_mv(ref_mb->mv_x, mv_scale);
switch_buffers(ctx);
- //START_TIMER;
+ //{ START_TIMER;
if (ctx->frame_type != FRAMETYPE_NULL) {
for (p = 0; p < 3; p++) {
}
}
- //STOP_TIMER("decode_planes");
+ //STOP_TIMER("decode_planes"); }
if (ctx->frame.data[0])
avctx->release_buffer(avctx, &ctx->frame);