av_log(avctx, AV_LOG_ERROR, "Invalid alpha mode %d\n", ctx->alpha_info);
return AVERROR_INVALIDDATA;
}
+ if (avctx->skip_alpha) ctx->alpha_info = 0;
switch (ctx->chroma_factor) {
case 2:
coff[2] = coff[1] + u_data_size;
v_data_size = hdr_size > 7 ? AV_RB16(buf + 6) : slice_data_size - coff[2];
coff[3] = coff[2] + v_data_size;
- a_data_size = slice_data_size - coff[3];
+ a_data_size = ctx->alpha_info ? slice_data_size - coff[3] : 0;
/* if V or alpha component size is negative that means that previous
component sizes are too large */