return 0;
}
+static int mpeg4_decode_visual_object(MpegEncContext *s, GetBitContext *gb)
+{
+ int visual_object_type;
+ int is_visual_object_identifier = get_bits1(gb);
+
+ if (is_visual_object_identifier) {
+ skip_bits(gb, 4+3);
+ }
+ visual_object_type = get_bits(gb, 4);
+
+ if (visual_object_type == VOT_VIDEO_ID ||
+ visual_object_type == VOT_STILL_TEXTURE_ID) {
+ int video_signal_type = get_bits1(gb);
+ if (video_signal_type) {
+ int video_range, color_description;
+ skip_bits(gb, 3); // video_format
+ video_range = get_bits1(gb);
+ color_description = get_bits1(gb);
+
+ s->avctx->color_range = video_range ? AVCOL_RANGE_JPEG : AVCOL_RANGE_MPEG;
+
+ if (color_description) {
+ s->avctx->color_primaries = get_bits(gb, 8);
+ s->avctx->color_trc = get_bits(gb, 8);
+ s->avctx->colorspace = get_bits(gb, 8);
+ }
+ }
+ }
+
+ return 0;
+}
+
static int decode_vol_header(Mpeg4DecContext *ctx, GetBitContext *gb)
{
MpegEncContext *s = &ctx->m;
mpeg4_decode_gop_header(s, gb);
} else if (startcode == VOS_STARTCODE) {
mpeg4_decode_profile_level(s, gb);
+ } else if (startcode == VISUAL_OBJ_STARTCODE) {
+ mpeg4_decode_visual_object(s, gb);
} else if (startcode == VOP_STARTCODE) {
break;
}