qsvdec: add mjpeg decoding support

jpeg/mjpeg decoding can't work currently because mjpeg parser can't
provide enough information currently.

Signed-off-by: Zhong Li <zhong.li@intel.com>

Author: lizhong1008

configure

@@ -2701,6 +2701,7 @@ hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
 hevc_vdpau_hwaccel_select="hevc_decoder"
 hevc_videotoolbox_hwaccel_deps="videotoolbox"
 hevc_videotoolbox_hwaccel_select="hevc_decoder"
+mjpeg_qsv_hwaccel_deps="libmfx"
 mjpeg_cuvid_hwaccel_deps="cuda cuvid"
 mjpeg_cuvid_hwaccel_select="mjpeg_cuvid_decoder"
 mpeg_xvmc_hwaccel_deps="xvmc"
@@ -2836,6 +2837,8 @@ hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
 hevc_vaapi_encoder_select="vaapi_encode golomb"
 hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"
 hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"
+mjpeg_qsv_decoder_deps="libmfx"
+mjpeg_qsv_decoder_select="qsvdec mjpeg_qsv_hwaccel mjpeg_parser"
 mjpeg_cuvid_decoder_deps="cuda cuvid"
 mjpeg_qsv_encoder_deps="libmfx"
 mjpeg_qsv_encoder_select="qsvenc"

libavcodec/Makefile

@@ -402,6 +402,7 @@ OBJS-$(CONFIG_METASOUND_DECODER)       += metasound.o metasound_data.o \
 OBJS-$(CONFIG_MICRODVD_DECODER)        += microdvddec.o ass.o
 OBJS-$(CONFIG_MIMIC_DECODER)           += mimic.o
 OBJS-$(CONFIG_MJPEG_DECODER)           += mjpegdec.o
+OBJS-$(CONFIG_MJPEG_QSV_DECODER)       += qsvdec_other.o
 OBJS-$(CONFIG_MJPEG_ENCODER)           += mjpegenc.o mjpegenc_common.o \
                                           mjpegenc_huffman.o
 OBJS-$(CONFIG_MJPEGB_DECODER)          += mjpegbdec.o

libavcodec/allcodecs.c

@@ -86,6 +86,7 @@ static void register_all(void)
     REGISTER_HWACCEL(HEVC_VDPAU,        hevc_vdpau);
     REGISTER_HWACCEL(HEVC_VIDEOTOOLBOX, hevc_videotoolbox);
     REGISTER_HWACCEL(MJPEG_CUVID,       mjpeg_cuvid);
+    REGISTER_HWACCEL(MJPEG_QSV,         mjpeg_qsv);
     REGISTER_HWACCEL(MPEG1_CUVID,       mpeg1_cuvid);
     REGISTER_HWACCEL(MPEG1_XVMC,        mpeg1_xvmc);
     REGISTER_HWACCEL(MPEG1_VDPAU,       mpeg1_vdpau);
@@ -691,6 +692,7 @@ static void register_all(void)
     REGISTER_ENCODER(HEVC_VAAPI,        hevc_vaapi);
     REGISTER_ENCODER(LIBKVAZAAR,        libkvazaar);
     REGISTER_DECODER(MJPEG_CUVID,       mjpeg_cuvid);
+    REGISTER_DECODER(MJPEG_QSV,         mjpeg_qsv);
     REGISTER_ENCODER(MJPEG_QSV,         mjpeg_qsv);
     REGISTER_ENCODER(MJPEG_VAAPI,       mjpeg_vaapi);
     REGISTER_DECODER(MPEG1_CUVID,       mpeg1_cuvid);

libavcodec/qsvdec_other.c

@@ -1,5 +1,5 @@
 /*
- * Intel MediaSDK QSV based MPEG-2, VC-1 and VP8 decoders
+ * Intel MediaSDK QSV based MPEG-2, VC-1, VP8 and MJPEG decoders
  *
  * copyright (c) 2015 Anton Khirnov
  *
@@ -267,3 +267,38 @@ AVCodec ff_vp8_qsv_decoder = {
                                                     AV_PIX_FMT_NONE },
 };
 #endif
+
+#if CONFIG_MJPEG_QSV_HWACCEL
+AVHWAccel ff_mjpeg_qsv_hwaccel = {
+    .name           = "mjpeg_qsv",
+    .type           = AVMEDIA_TYPE_VIDEO,
+    .id             = AV_CODEC_ID_MJPEG,
+    .pix_fmt        = AV_PIX_FMT_QSV,
+};
+#endif
+
+#if CONFIG_MJPEG_QSV_DECODER
+static const AVClass mjpeg_qsv_class = {
+    .class_name = "mjpeg_qsv",
+    .item_name  = av_default_item_name,
+    .option     = options,
+    .version    = LIBAVUTIL_VERSION_INT,
+};
+
+AVCodec ff_mjpeg_qsv_decoder = {
+    .name           = "mjpeg_qsv",
+    .long_name      = NULL_IF_CONFIG_SMALL("MJPEG video (Intel Quick Sync Video acceleration)"),
+    .priv_data_size = sizeof(QSVOtherContext),
+    .type           = AVMEDIA_TYPE_VIDEO,
+    .id             = AV_CODEC_ID_MJPEG,
+    .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 | AV_CODEC_CAP_AVOID_PROBING,
+    .priv_class     = &mjpeg_qsv_class,
+    .pix_fmts       = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,
+                                                    AV_PIX_FMT_QSV,
+                                                    AV_PIX_FMT_NONE },
+};
+#endif