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crystalhd: We don't need the track the last picture number anymore

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This was needed to detect an interlaced failure case that doesn't
happen with the new decode api.
This commit is contained in:
Philip Langdale 2016-10-16 11:01:40 -07:00
parent badce88fdf
commit 89ba55dc0d
1 changed files with 0 additions and 40 deletions
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40
libavcodec/crystalhd.c
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@ -133,8 +133,6 @@ typedef struct {
uint8_t is_nal;
uint8_t need_second_field;
uint64_t last_picture;
OpaqueList *head;
OpaqueList *tail;
@ -310,7 +308,6 @@ static void flush(AVCodecContext *avctx)
{
CHDContext *priv = avctx->priv_data;
priv->last_picture = -1;
priv->need_second_field = 0;
av_frame_unref (priv->pic);
@ -446,7 +443,6 @@ static av_cold int init(AVCodecContext *avctx)
priv = avctx->priv_data;
priv->avctx = avctx;
priv->is_nal = avctx->extradata_size > 0 && *(avctx->extradata) == 1;
priv->last_picture = -1;
priv->pic = av_frame_alloc();
subtype = id2subtype(priv, avctx->codec->id);
@ -609,19 +605,6 @@ static inline CopyRet copy_frame(AVCodecContext *avctx,
return RET_ERROR;
}
/*
* 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.
*/
if (output->PicInfo.picture_number == priv->last_picture && !priv->need_second_field) {
av_log(avctx, AV_LOG_WARNING,
"Incorrectly guessed progressive frame. Discarding second field\n");
/* Returning without providing a picture. */
return RET_OK;
}
interlaced = output->PicInfo.flags & VDEC_FLAG_INTERLACED_SRC;
av_log(avctx, AV_LOG_VERBOSE, "Interlaced state: %d\n",
@ -786,42 +769,19 @@ static inline CopyRet receive_frame(AVCodecContext *avctx,
} else if (ret == BC_STS_SUCCESS) {
int copy_ret = -1;
if (output.PoutFlags & BC_POUT_FLAGS_PIB_VALID) {
if (priv->last_picture == -1) {
/*
* Init to one less, so that the incrementing code doesn't
* need to be special-cased.
*/
priv->last_picture = output.PicInfo.picture_number - 1;
}
if (avctx->codec->id == AV_CODEC_ID_MPEG4 &&
output.PicInfo.timeStamp == 0 && priv->bframe_bug) {
if (!priv->bframe_bug) {
av_log(avctx, AV_LOG_VERBOSE,
"CrystalHD: Not returning packed frame twice.\n");
}
priv->last_picture++;
DtsReleaseOutputBuffs(dev, NULL, FALSE);
return RET_COPY_AGAIN;
}
print_frame_info(priv, &output);
if (priv->last_picture + 1 < output.PicInfo.picture_number) {
av_log(avctx, AV_LOG_WARNING,
"CrystalHD: Picture Number discontinuity\n");
/*
* XXX: I have no idea what the semantics of this situation
* are so I don't even know if we've lost frames or which
* ones.
*/
priv->last_picture = output.PicInfo.picture_number - 1;
}
copy_ret = copy_frame(avctx, &output, data, got_frame);
if (*got_frame > 0) {
priv->last_picture++;
}
} else {
/*
* An invalid frame has been consumed.