{
BC_STATUS ret;
BC_DTS_STATUS decoder_status = { 0, };
- uint8_t trust_interlaced;
uint8_t interlaced;
CHDContext *priv = avctx->priv_data;
}
/*
- * For most content, we can trust the interlaced flag returned
- * by the hardware, but sometimes we can't. These are the
- * conditions under which we can trust the flag:
- *
- * 1) It's not h.264 content
- * 2) The UNKNOWN_SRC flag is not set
- * 3) We know we're expecting a second field
- * 4) The hardware reports this picture and the next picture
- * have the same picture number.
- *
- * Note that there can still be interlaced content that will
- * fail this check, if the hardware hasn't decoded the next
- * picture or if there is a corruption in the stream. (In either
- * case a 0 will be returned for the next picture number)
- */
- trust_interlaced = avctx->codec->id != AV_CODEC_ID_H264 ||
- !(output->PicInfo.flags & VDEC_FLAG_UNKNOWN_SRC) ||
- priv->need_second_field ||
- (decoder_status.picNumFlags & ~0x40000000) ==
- output->PicInfo.picture_number;
-
- /*
- * If we got a false negative for trust_interlaced on the first field,
+ * If we got a false negative for interlaced on the first field,
* we will realise our mistake here when we see that the picture number is that
* of the previous picture. We cannot recover the frame and should discard the
* second field to keep the correct number of output frames.
return RET_OK;
}
- interlaced = (output->PicInfo.flags & VDEC_FLAG_INTERLACED_SRC) &&
- trust_interlaced;
-
- if (!trust_interlaced && (decoder_status.picNumFlags & ~0x40000000) == 0) {
- av_log(avctx, AV_LOG_VERBOSE,
- "Next picture number unknown. Assuming progressive frame.\n");
- }
+ interlaced = output->PicInfo.flags & VDEC_FLAG_INTERLACED_SRC;
- av_log(avctx, AV_LOG_VERBOSE, "Interlaced state: %d | trust_interlaced %d\n",
- interlaced, trust_interlaced);
+ av_log(avctx, AV_LOG_VERBOSE, "Interlaced state: %d\n",
+ interlaced);
if (priv->pic->data[0] && !priv->need_second_field)
av_frame_unref(priv->pic);