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Code Issues Releases Activity

CrystalHD: Bring in h.264 parser to establish picture type.

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As the hardware is unreliable, we will have to use the h.264 parser
to identify whether an input picture is a field or a frame. This
change loads the parser and extracts the picture type.

Signed-off-by: Philip Langdale <philipl@overt.org>
This commit is contained in:
Philip Langdale 2011-03-25 22:46:22 -07:00
parent e99fd6ee19
commit f6421e0b5c
2 changed files with 30 additions and 1 deletions
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2
configure vendored
View File

@ -1279,7 +1279,7 @@ h263_vaapi_hwaccel_select="vaapi h263_decoder"
h263i_decoder_select="h263_decoder"
h263p_encoder_select="h263_encoder"
h264_decoder_select="golomb h264dsp h264pred"
h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf"
h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
h264_dxva2_hwaccel_deps="dxva2api_h"
h264_dxva2_hwaccel_select="dxva2 h264_decoder"
h264_vaapi_hwaccel_select="vaapi"

29
libavcodec/crystalhd.c
View File

@ -84,6 +84,7 @@
#include <libcrystalhd/libcrystalhd_if.h>
#include "avcodec.h"
#include "h264.h"
#include "libavutil/imgutils.h"
#include "libavutil/intreadwrite.h"
@ -120,6 +121,8 @@ typedef struct {
AVFrame pic;
HANDLE dev;
AVCodecParserContext *parser;
uint8_t is_70012;
uint8_t *sps_pps_buf;
uint32_t sps_pps_size;
@ -316,6 +319,8 @@ static av_cold int uninit(AVCodecContext *avctx)
DtsCloseDecoder(device);
DtsDeviceClose(device);
av_parser_close(priv->parser);
av_free(priv->sps_pps_buf);
if (priv->pic.data[0])
@ -478,6 +483,13 @@ static av_cold int init(AVCodecContext *avctx)
goto fail;
}
if (avctx->codec->id == CODEC_ID_H264) {
priv->parser = av_parser_init(avctx->codec->id);
if (!priv->parser)
av_log(avctx, AV_LOG_WARNING,
"Cannot open the h.264 parser! Interlaced h.264 content "
"will not be detected reliably.\n");
}
av_log(avctx, AV_LOG_VERBOSE, "CrystalHD: Init complete.\n");
return 0;
@ -737,11 +749,28 @@ static int decode(AVCodecContext *avctx, void *data, int *data_size, AVPacket *a
CHDContext *priv = avctx->priv_data;
HANDLE dev = priv->dev;
int len = avpkt->size;
uint8_t pic_type = 0;
av_log(avctx, AV_LOG_VERBOSE, "CrystalHD: decode_frame\n");
if (len) {
int32_t tx_free = (int32_t)DtsTxFreeSize(dev);
if (priv->parser) {
uint8_t *pout;
int psize = len;
H264Context *h = priv->parser->priv_data;
while (psize)
ret = av_parser_parse2(priv->parser, avctx, &pout, &psize,
avpkt->data, len, avctx->pkt->pts,
avctx->pkt->dts, len - psize);
av_log(avctx, AV_LOG_VERBOSE,
"CrystalHD: parser picture type %d\n",
h->s.picture_structure);
pic_type = h->s.picture_structure;
}
if (len < tx_free - 1024) {
/*
* Despite being notionally opaque, either libcrystalhd or