lavc: add Intel libmfx-based MPEG2 encoder

1 files changed, 117 insertions, 0 deletions

diff --git a/libavcodec/qsvenc_mpeg2.c b/libavcodec/qsvenc_mpeg2.c
new file mode 100644
index 0000000000..36010364d3
--- /dev/null
+++ b/libavcodec/qsvenc_mpeg2.c
@@ -0,0 +1,117 @@
+/*
+ * Intel MediaSDK QSV based MPEG-2 encoder
+ *
+ * This file is part of Libav.
+ *
+ * Libav 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.
+ *
+ * Libav 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 Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <mfx/mfxvideo.h>
+
+#include "libavutil/common.h"
+#include "libavutil/opt.h"
+
+#include "avcodec.h"
+#include "internal.h"
+#include "qsv.h"
+#include "qsv_internal.h"
+#include "qsvenc.h"
+
+typedef struct QSVMpeg2EncContext {
+    AVClass *class;
+    QSVEncContext qsv;
+} QSVMpeg2EncContext;
+
+static av_cold int qsv_enc_init(AVCodecContext *avctx)
+{
+    QSVMpeg2EncContext *q = avctx->priv_data;
+
+    return ff_qsv_enc_init(avctx, &q->qsv);
+}
+
+static int qsv_enc_frame(AVCodecContext *avctx, AVPacket *pkt,
+                         const AVFrame *frame, int *got_packet)
+{
+    QSVMpeg2EncContext *q = avctx->priv_data;
+
+    return ff_qsv_encode(avctx, &q->qsv, pkt, frame, got_packet);
+}
+
+static av_cold int qsv_enc_close(AVCodecContext *avctx)
+{
+    QSVMpeg2EncContext *q = avctx->priv_data;
+
+    return ff_qsv_enc_close(avctx, &q->qsv);
+}
+
+#define OFFSET(x) offsetof(QSVMpeg2EncContext, x)
+#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
+static const AVOption options[] = {
+    { "async_depth", "Maximum processing parallelism", OFFSET(qsv.async_depth), AV_OPT_TYPE_INT, { .i64 = ASYNC_DEPTH_DEFAULT }, 0, INT_MAX, VE },
+    { "avbr_accuracy",    "Accuracy of the AVBR ratecontrol",    OFFSET(qsv.avbr_accuracy),    AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE },
+    { "avbr_convergence", "Convergence of the AVBR ratecontrol", OFFSET(qsv.avbr_convergence), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE },
+
+    { "profile", NULL, OFFSET(qsv.profile), AV_OPT_TYPE_INT, { .i64 = MFX_PROFILE_UNKNOWN }, 0, INT_MAX, VE, "profile" },
+    { "unknown", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_UNKNOWN        }, INT_MIN, INT_MAX,     VE, "profile" },
+    { "simple",  NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_MPEG2_SIMPLE   }, INT_MIN, INT_MAX,     VE, "profile" },
+    { "main",    NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_MPEG2_MAIN     }, INT_MIN, INT_MAX,     VE, "profile" },
+    { "high",    NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_MPEG2_HIGH     }, INT_MIN, INT_MAX,     VE, "profile" },
+
+    { "preset", NULL, OFFSET(qsv.preset), AV_OPT_TYPE_INT, { .i64 = MFX_TARGETUSAGE_BALANCED }, 0, 7,   VE, "preset" },
+    { "fast",   NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_TARGETUSAGE_BEST_SPEED  },   INT_MIN, INT_MAX, VE, "preset" },
+    { "medium", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_TARGETUSAGE_BALANCED  },     INT_MIN, INT_MAX, VE, "preset" },
+    { "slow",   NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_TARGETUSAGE_BEST_QUALITY  }, INT_MIN, INT_MAX, VE, "preset" },
+
+    { NULL },
+};
+
+static const AVClass class = {
+    .class_name = "mpeg2_qsv encoder",
+    .item_name  = av_default_item_name,
+    .option     = options,
+    .version    = LIBAVUTIL_VERSION_INT,
+};
+
+static const AVCodecDefault qsv_enc_defaults[] = {
+    { "b",         "1M"    },
+    { "refs",      "0"     },
+    // same as the x264 default
+    { "g",         "250"   },
+    { "bf",        "3"     },
+
+    { "flags",     "+cgop" },
+    { NULL },
+};
+
+AVCodec ff_mpeg2_qsv_encoder = {
+    .name           = "mpeg2_qsv",
+    .long_name      = NULL_IF_CONFIG_SMALL("MPEG-2 video (Intel Quick Sync Video acceleration)"),
+    .priv_data_size = sizeof(QSVMpeg2EncContext),
+    .type           = AVMEDIA_TYPE_VIDEO,
+    .id             = AV_CODEC_ID_MPEG2VIDEO,
+    .init           = qsv_enc_init,
+    .encode2        = qsv_enc_frame,
+    .close          = qsv_enc_close,
+    .capabilities   = CODEC_CAP_DELAY,
+    .pix_fmts       = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,
+                                                    AV_PIX_FMT_QSV,
+                                                    AV_PIX_FMT_NONE },
+    .priv_class     = &class,
+    .defaults       = qsv_enc_defaults,
+};