lavc: add Intel libmfx-based HEVC decoder.

Changelog

@@ -40,6 +40,7 @@ version <next>:
 - Go2Meeting decoding support
 - Intel QSV-accelerated MPEG-2 video and HEVC encoding
 - bitstream filter for converting HEVC from MP4 to Annex B
+- Intel QSV-accelerated MPEG-2 video and HEVC decoding
 
 
 version 11:

configure

@@ -1881,6 +1881,8 @@ hap_encoder_select="texturedspenc"
 hevc_decoder_select="bswapdsp cabac golomb videodsp"
 hevc_nvenc_encoder_deps="nvenc"
 hevc_qsv_encoder_deps="libmfx"
+hevc_qsv_decoder_deps="libmfx"
+hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
 hevc_qsv_encoder_select="qsvenc"
 huffyuv_decoder_select="bswapdsp huffyuvdsp"
 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
@@ -2045,6 +2047,7 @@ hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
 hevc_d3d11va_hwaccel_select="hevc_decoder"
 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
 hevc_dxva2_hwaccel_select="hevc_decoder"
+hevc_qsv_hwaccel_deps="libmfx"
 mpeg1_vdpau_hwaccel_deps="vdpau"
 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
 mpeg2_d3d11va_hwaccel_deps="d3d11va"

libavcodec/Makefile

@@ -241,7 +241,7 @@ OBJS-$(CONFIG_H264_DECODER)            += h264.o h264_cabac.o h264_cavlc.o \
                                           h264_refs.o h264_sei.o h264_slice.o
 OBJS-$(CONFIG_H264_MMAL_DECODER)       += mmaldec.o
 OBJS-$(CONFIG_H264_NVENC_ENCODER)      += nvenc_h264.o
-OBJS-$(CONFIG_H264_QSV_DECODER)        += qsvdec_h264.o
+OBJS-$(CONFIG_H264_QSV_DECODER)        += qsvdec_h2645.o
 OBJS-$(CONFIG_H264_QSV_ENCODER)        += qsvenc_h264.o
 OBJS-$(CONFIG_HAP_DECODER)             += hapdec.o
 OBJS-$(CONFIG_HAP_ENCODER)             += hapenc.o
@@ -249,6 +249,7 @@ OBJS-$(CONFIG_HEVC_DECODER)            += hevc.o hevc_mvs.o hevc_ps.o hevc_sei.o
                                           hevc_cabac.o hevc_refs.o hevcpred.o    \
                                           hevcdsp.o hevc_filter.o hevc_parse.o hevc_data.o
 OBJS-$(CONFIG_HEVC_NVENC_ENCODER)      += nvenc_hevc.o
+OBJS-$(CONFIG_HEVC_QSV_DECODER)        += qsvdec_h2645.o
 OBJS-$(CONFIG_HEVC_QSV_ENCODER)        += qsvenc_hevc.o hevc_ps_enc.o hevc_parse.o
 OBJS-$(CONFIG_HNM4_VIDEO_DECODER)      += hnm4video.o
 OBJS-$(CONFIG_HQ_HQA_DECODER)          += hq_hqa.o hq_hqadata.o hq_hqadsp.o \

libavcodec/allcodecs.c

@@ -86,6 +86,7 @@ void avcodec_register_all(void)
     REGISTER_HWACCEL(H264_VDPAU,        h264_vdpau);
     REGISTER_HWACCEL(HEVC_D3D11VA,      hevc_d3d11va);
     REGISTER_HWACCEL(HEVC_DXVA2,        hevc_dxva2);
+    REGISTER_HWACCEL(HEVC_QSV,          hevc_qsv);
     REGISTER_HWACCEL(MPEG1_VDPAU,       mpeg1_vdpau);
     REGISTER_HWACCEL(MPEG2_D3D11VA,     mpeg2_d3d11va);
     REGISTER_HWACCEL(MPEG2_DXVA2,       mpeg2_dxva2);
@@ -173,6 +174,7 @@ void avcodec_register_all(void)
     REGISTER_DECODER(H264_QSV,          h264_qsv);
     REGISTER_ENCDEC (HAP,               hap);
     REGISTER_DECODER(HEVC,              hevc);
+    REGISTER_DECODER(HEVC_QSV,          hevc_qsv);
     REGISTER_DECODER(HNM4_VIDEO,        hnm4_video);
     REGISTER_DECODER(HQ_HQA,            hq_hqa);
     REGISTER_DECODER(HQX,               hqx);

libavcodec/qsvdec.c

@@ -53,7 +53,8 @@ static int qsv_init_session(AVCodecContext *avctx, QSVContext *q, mfxSession ses
 {
     if (!session) {
         if (!q->internal_session) {
-            int ret = ff_qsv_init_internal_session(avctx, &q->internal_session, NULL);
+            int ret = ff_qsv_init_internal_session(avctx, &q->internal_session,
+                                                   q->load_plugins);
             if (ret < 0)
                 return ret;
         }

libavcodec/qsvdec.h

@@ -59,6 +59,8 @@ typedef struct QSVContext {
     int async_depth;
     int iopattern;
 
+    char *load_plugins;
+
     mfxExtBuffer **ext_buffers;
     int         nb_ext_buffers;
 } QSVContext;

libavcodec/qsvdec_h264.c → libavcodec/qsvdec_h2645.c

 /*
- * Intel MediaSDK QSV based H.264 decoder
+ * Intel MediaSDK QSV based H.264 / HEVC decoder
  *
  * copyright (c) 2013 Luca Barbato
  * copyright (c) 2015 Anton Khirnov
@@ -37,10 +37,17 @@
 #include "qsvdec.h"
 #include "qsv.h"
 
-typedef struct QSVH264Context {
+enum LoadPlugin {
+    LOAD_PLUGIN_NONE,
+    LOAD_PLUGIN_HEVC_SW,
+};
+
+typedef struct QSVH2645Context {
     AVClass *class;
     QSVContext qsv;
 
+    int load_plugin;
+
     // the filter for converting to Annex B
     AVBitStreamFilterContext *bsf;
 
@@ -49,9 +56,9 @@ typedef struct QSVH264Context {
     AVPacket input_ref;
     AVPacket pkt_filtered;
     uint8_t *filtered_data;
-} QSVH264Context;
+} QSVH2645Context;
 
-static void qsv_clear_buffers(QSVH264Context *s)
+static void qsv_clear_buffers(QSVH2645Context *s)
 {
     AVPacket pkt;
     while (av_fifo_size(s->packet_fifo) >= sizeof(pkt)) {
@@ -67,7 +74,7 @@ static void qsv_clear_buffers(QSVH264Context *s)
 
 static av_cold int qsv_decode_close(AVCodecContext *avctx)
 {
-    QSVH264Context *s = avctx->priv_data;
+    QSVH2645Context *s = avctx->priv_data;
 
     ff_qsv_decode_close(&s->qsv);
 
@@ -82,9 +89,23 @@ static av_cold int qsv_decode_close(AVCodecContext *avctx)
 
 static av_cold int qsv_decode_init(AVCodecContext *avctx)
 {
-    QSVH264Context *s = avctx->priv_data;
+    QSVH2645Context *s = avctx->priv_data;
     int ret;
 
+    if (avctx->codec_id == AV_CODEC_ID_HEVC && s->load_plugin != LOAD_PLUGIN_NONE) {
+        static const char *uid_hevcenc_sw = "15dd936825ad475ea34e35f3f54217a6";
+
+        if (s->qsv.load_plugins[0]) {
+            av_log(avctx, AV_LOG_WARNING,
+                   "load_plugins is not empty, but load_plugin is not set to 'none'."
+                   "The load_plugin value will be ignored.\n");
+        } else {
+            av_freep(&s->qsv.load_plugins);
+            s->qsv.load_plugins = av_strdup(uid_hevcenc_sw);
+            if (!s->qsv.load_plugins)
+                return AVERROR(ENOMEM);
+        }
+    }
 
     s->packet_fifo = av_fifo_alloc(sizeof(AVPacket));
     if (!s->packet_fifo) {
@@ -92,7 +113,10 @@ static av_cold int qsv_decode_init(AVCodecContext *avctx)
         goto fail;
     }
 
-    s->bsf = av_bitstream_filter_init("h264_mp4toannexb");
+    if (avctx->codec_id == AV_CODEC_ID_H264)
+        s->bsf = av_bitstream_filter_init("h264_mp4toannexb");
+    else
+        s->bsf = av_bitstream_filter_init("hevc_mp4toannexb");
     if (!s->bsf) {
         ret = AVERROR(ENOMEM);
         goto fail;
@@ -109,7 +133,7 @@ fail:
 static int qsv_decode_frame(AVCodecContext *avctx, void *data,
                             int *got_frame, AVPacket *avpkt)
 {
-    QSVH264Context *s = avctx->priv_data;
+    QSVH2645Context *s = avctx->priv_data;
     AVFrame *frame    = data;
     int ret;
 
@@ -171,12 +195,58 @@ static int qsv_decode_frame(AVCodecContext *avctx, void *data,
 
 static void qsv_decode_flush(AVCodecContext *avctx)
 {
-    QSVH264Context *s = avctx->priv_data;
+    QSVH2645Context *s = avctx->priv_data;
 
     qsv_clear_buffers(s);
     ff_qsv_decode_flush(avctx, &s->qsv);
 }
 
+#define OFFSET(x) offsetof(QSVH2645Context, x)
+#define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
+
+#if CONFIG_HEVC_QSV_DECODER
+AVHWAccel ff_hevc_qsv_hwaccel = {
+    .name           = "hevc_qsv",
+    .type           = AVMEDIA_TYPE_VIDEO,
+    .id             = AV_CODEC_ID_HEVC,
+    .pix_fmt        = AV_PIX_FMT_QSV,
+};
+
+static const AVOption hevc_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 },
+
+    { "load_plugin", "A user plugin to load in an internal session", OFFSET(load_plugin), AV_OPT_TYPE_INT, { .i64 = LOAD_PLUGIN_HEVC_SW }, LOAD_PLUGIN_NONE, LOAD_PLUGIN_HEVC_SW, VD, "load_plugin" },
+    { "none",     NULL, 0, AV_OPT_TYPE_CONST, { .i64 = LOAD_PLUGIN_NONE },    0, 0, VD, "load_plugin" },
+    { "hevc_sw",  NULL, 0, AV_OPT_TYPE_CONST, { .i64 = LOAD_PLUGIN_HEVC_SW }, 0, 0, VD, "load_plugin" },
+
+    { "load_plugins", "A :-separate list of hexadecimal plugin UIDs to load in an internal session",
+        OFFSET(qsv.load_plugins), AV_OPT_TYPE_STRING, { .str = "" }, 0, 0, VD },
+    { NULL },
+};
+
+static const AVClass hevc_class = {
+    .class_name = "hevc_qsv",
+    .item_name  = av_default_item_name,
+    .option     = hevc_options,
+    .version    = LIBAVUTIL_VERSION_INT,
+};
+
+AVCodec ff_hevc_qsv_decoder = {
+    .name           = "hevc_qsv",
+    .long_name      = NULL_IF_CONFIG_SMALL("HEVC (Intel Quick Sync Video acceleration)"),
+    .priv_data_size = sizeof(QSVH2645Context),
+    .type           = AVMEDIA_TYPE_VIDEO,
+    .id             = AV_CODEC_ID_HEVC,
+    .init           = qsv_decode_init,
+    .decode         = qsv_decode_frame,
+    .flush          = qsv_decode_flush,
+    .close          = qsv_decode_close,
+    .capabilities   = CODEC_CAP_DELAY,
+    .priv_class     = &hevc_class,
+};
+#endif
+
+#if CONFIG_H264_QSV_DECODER
 AVHWAccel ff_h264_qsv_hwaccel = {
     .name           = "h264_qsv",
     .type           = AVMEDIA_TYPE_VIDEO,
@@ -184,8 +254,6 @@ AVHWAccel ff_h264_qsv_hwaccel = {
     .pix_fmt        = AV_PIX_FMT_QSV,
 };
 
-#define OFFSET(x) offsetof(QSVH264Context, 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 },
@@ -201,7 +269,7 @@ static const AVClass class = {
 AVCodec ff_h264_qsv_decoder = {
     .name           = "h264_qsv",
     .long_name      = NULL_IF_CONFIG_SMALL("H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (Intel Quick Sync Video acceleration)"),
-    .priv_data_size = sizeof(QSVH264Context),
+    .priv_data_size = sizeof(QSVH2645Context),
     .type           = AVMEDIA_TYPE_VIDEO,
     .id             = AV_CODEC_ID_H264,
     .init           = qsv_decode_init,
@@ -211,3 +279,4 @@ AVCodec ff_h264_qsv_decoder = {
     .capabilities   = CODEC_CAP_DELAY,
     .priv_class     = &class,
 };
+#endif

libavcodec/version.h

@@ -29,8 +29,8 @@
 #include "libavutil/version.h"
 
 #define LIBAVCODEC_VERSION_MAJOR 56
-#define LIBAVCODEC_VERSION_MINOR 33
-#define LIBAVCODEC_VERSION_MICRO  1
+#define LIBAVCODEC_VERSION_MINOR 34
+#define LIBAVCODEC_VERSION_MICRO  0
 
 #define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
                                                LIBAVCODEC_VERSION_MINOR, \