[FFmpeg-cvslog] avcodec: Add QSV MPEG-2 video decoder.
Ivan Uskov
git at videolan.org
Sat Jul 25 17:48:46 CEST 2015
ffmpeg | branch: master | Ivan Uskov <ivan.uskov at nablet.com> | Sat Jul 25 10:45:20 2015 -0400| [6d0123f40e2a94ae3f215af4d598919bc72b9b07] | committer: Michael Niedermayer
avcodec: Add QSV MPEG-2 video decoder.
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=6d0123f40e2a94ae3f215af4d598919bc72b9b07
---
Changelog | 1 +
configure | 4 ++
libavcodec/Makefile | 1 +
libavcodec/allcodecs.c | 2 +
libavcodec/qsvdec_mpeg2.c | 95 +++++++++++++++++++++++++++++++++++++++++++++
libavcodec/version.h | 2 +-
6 files changed, 104 insertions(+), 1 deletion(-)
diff --git a/Changelog b/Changelog
index 27870ba..7a642bf 100644
--- a/Changelog
+++ b/Changelog
@@ -15,6 +15,7 @@ version <next>:
- adrawgraph audio and drawgraph video filter
- removegrain video filter
- Intel QSV-accelerated MPEG-2 video and HEVC encoding
+- Intel QSV-accelerated MPEG-2 video decoding
- libkvazaar HEVC encoder
- erosion, dilation, deflate and inflate video filters
- Dynamic Audio Normalizer as dynaudnorm filter
diff --git a/configure b/configure
index 8f3bce3..c71951c 100755
--- a/configure
+++ b/configure
@@ -2273,6 +2273,8 @@ mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
+mpeg2_qsv_decoder_deps="libmfx"
+mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
mpeg2_qsv_encoder_deps="libmfx"
mpeg2_qsv_encoder_select="qsvenc"
mpeg4_decoder_select="h263_decoder mpeg4video_parser"
@@ -2431,6 +2433,8 @@ mpeg2_vdpau_hwaccel_deps="vdpau"
mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
mpeg2_xvmc_hwaccel_deps="xvmc"
mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
+mpeg2_qsv_hwaccel_deps="libmfx"
+mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
mpeg4_crystalhd_decoder_select="crystalhd"
mpeg4_vaapi_hwaccel_deps="vaapi"
mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index eea9ead..b8c24d3 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -364,6 +364,7 @@ OBJS-$(CONFIG_MPEG1VIDEO_ENCODER) += mpeg12enc.o mpeg12.o
OBJS-$(CONFIG_MPEG2VIDEO_DECODER) += mpeg12dec.o mpeg12.o mpeg12data.o
OBJS-$(CONFIG_MPEG2VIDEO_ENCODER) += mpeg12enc.o mpeg12.o
OBJS-$(CONFIG_MPEG2_QSV_ENCODER) += qsvenc_mpeg2.o
+OBJS-$(CONFIG_MPEG2_QSV_DECODER) += qsvdec_mpeg2.o
OBJS-$(CONFIG_MPEG4_DECODER) += xvididct.o
OBJS-$(CONFIG_MPL2_DECODER) += mpl2dec.o ass.o
OBJS-$(CONFIG_MSMPEG4V1_DECODER) += msmpeg4dec.o msmpeg4.o msmpeg4data.o
diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c
index 82db791..647cd4f 100644
--- a/libavcodec/allcodecs.c
+++ b/libavcodec/allcodecs.c
@@ -94,6 +94,7 @@ void avcodec_register_all(void)
REGISTER_HWACCEL(MPEG2_DXVA2, mpeg2_dxva2);
REGISTER_HWACCEL(MPEG2_VAAPI, mpeg2_vaapi);
REGISTER_HWACCEL(MPEG2_VDPAU, mpeg2_vdpau);
+ REGISTER_HWACCEL(MPEG2_QSV, mpeg2_qsv);
REGISTER_HWACCEL(MPEG4_VAAPI, mpeg4_vaapi);
REGISTER_HWACCEL(MPEG4_VDPAU, mpeg4_vdpau);
REGISTER_HWACCEL(VC1_D3D11VA, vc1_d3d11va);
@@ -223,6 +224,7 @@ void avcodec_register_all(void)
REGISTER_DECODER(MPEG_VDPAU, mpeg_vdpau);
REGISTER_DECODER(MPEG1_VDPAU, mpeg1_vdpau);
REGISTER_DECODER(MPEG2_CRYSTALHD, mpeg2_crystalhd);
+ REGISTER_DECODER(MPEG2_QSV, mpeg2_qsv);
REGISTER_DECODER(MSA1, msa1);
REGISTER_DECODER(MSMPEG4_CRYSTALHD, msmpeg4_crystalhd);
REGISTER_DECODER(MSMPEG4V1, msmpeg4v1);
diff --git a/libavcodec/qsvdec_mpeg2.c b/libavcodec/qsvdec_mpeg2.c
new file mode 100644
index 0000000..e920da7
--- /dev/null
+++ b/libavcodec/qsvdec_mpeg2.c
@@ -0,0 +1,95 @@
+/*
+ * Intel MediaSDK QSV based MPEG2 video decoder
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+#include <string.h>
+
+#include "libavutil/common.h"
+#include "libavutil/opt.h"
+
+#include "avcodec.h"
+#include "qsvdec.h"
+
+typedef struct QSVMPVContext {
+ AVClass *class;
+ QSVContext qsv;
+} QSVMPVContext;
+
+static av_cold int qsv_decode_close(AVCodecContext *avctx)
+{
+ QSVMPVContext *s = avctx->priv_data;
+
+ ff_qsv_decode_close(&s->qsv);
+
+ return 0;
+}
+
+static av_cold int qsv_decode_init(AVCodecContext *avctx)
+{
+ return 0;
+}
+
+static int qsv_decode_frame(AVCodecContext *avctx, void *data,
+ int *got_frame, AVPacket *avpkt)
+{
+ QSVMPVContext *s = avctx->priv_data;
+ AVFrame *frame = data;
+
+ return ff_qsv_decode(avctx, &s->qsv, frame, got_frame, avpkt);
+}
+
+static void qsv_decode_flush(AVCodecContext *avctx)
+{
+}
+
+AVHWAccel ff_mpeg2_qsv_hwaccel = {
+ .name = "mpeg2_qsv",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_MPEG2VIDEO,
+ .pix_fmt = AV_PIX_FMT_QSV,
+};
+
+#define OFFSET(x) offsetof(QSVMPVContext, x)
+#define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
+static const AVOption options[] = {
+ { "async_depth", "Internal parallelization depth, the higher the value the higher the latency.", OFFSET(qsv.async_depth), AV_OPT_TYPE_INT, { .i64 = ASYNC_DEPTH_DEFAULT }, 0, INT_MAX, VD },
+ { NULL },
+};
+
+static const AVClass class = {
+ .class_name = "mpeg2_qsv",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
+AVCodec ff_mpeg2_qsv_decoder = {
+ .name = "mpeg2_qsv",
+ .long_name = NULL_IF_CONFIG_SMALL("MPEG-2 video (Intel Quick Sync Video acceleration)"),
+ .priv_data_size = sizeof(QSVMPVContext),
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_MPEG2VIDEO,
+ .init = qsv_decode_init,
+ .decode = qsv_decode_frame,
+ .flush = qsv_decode_flush,
+ .close = qsv_decode_close,
+ .capabilities = CODEC_CAP_DELAY,
+ .priv_class = &class,
+};
diff --git a/libavcodec/version.h b/libavcodec/version.h
index aea9882..fe60110 100644
--- a/libavcodec/version.h
+++ b/libavcodec/version.h
@@ -29,7 +29,7 @@
#include "libavutil/version.h"
#define LIBAVCODEC_VERSION_MAJOR 56
-#define LIBAVCODEC_VERSION_MINOR 52
+#define LIBAVCODEC_VERSION_MINOR 53
#define LIBAVCODEC_VERSION_MICRO 100
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
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