APNG_BLEND_OP_OVER 1018 libavcodec/pngdec.c     if (blend_op != APNG_BLEND_OP_OVER && blend_op != APNG_BLEND_OP_SOURCE) {
APNG_BLEND_OP_OVER 1030 libavcodec/pngdec.c     if (blend_op == APNG_BLEND_OP_OVER && !s->has_trns && (
APNG_BLEND_OP_OVER 1078 libavcodec/pngdec.c     if (s->blend_op == APNG_BLEND_OP_OVER &&