ffmpeg-2.8.5

git-svn-id: svn://kolibrios.org@6147 a494cfbc-eb01-0410-851d-a64ba20cac60
2016-02-05 22:08:02 +00:00
parent a08f61ddb9
commit a4b787f4b8
5429 changed files with 1356786 additions and 0 deletions
--- a/contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/qsvdec_mpeg2.c
+++ b/contrib/sdk/sources/ffmpeg/ffmpeg-2.8/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 QSVMPEG2Context {
+    AVClass *class;
+    QSVContext qsv;
+} QSVMPEG2Context;
+
+static av_cold int qsv_decode_close(AVCodecContext *avctx)
+{
+    QSVMPEG2Context *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)
+{
+    QSVMPEG2Context *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(QSVMPEG2Context, 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(QSVMPEG2Context),
+    .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   = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_DR1,
+    .priv_class     = &class,
+};