diff --git a/libavcodec/qsv.c b/libavcodec/qsv.c index 31be9d1fa3..714c7948cb 100644 --- a/libavcodec/qsv.c +++ b/libavcodec/qsv.c @@ -77,6 +77,21 @@ int ff_qsv_error(int mfx_err) } } +/** + * @brief Initialize a MSDK session + * + * Media SDK is based on sessions, so this is the prerequisite + * initialization for HW acceleration. For Windows the session is + * complete and ready to use, for Linux a display handle is + * required. For releases of Media Server Studio >= 2015 R4 the + * render nodes interface is preferred (/dev/dri/renderD). + * Using Media Server Studio 2015 R4 or newer is recommended + * but the older /dev/dri/card interface is also searched + * for broader compatibility. + * + * @param avctx ffmpeg metadata for this codec context + * @param session the MSDK session used + */ int ff_qsv_init_internal_session(AVCodecContext *avctx, mfxSession *session) { mfxIMPL impl = MFX_IMPL_AUTO_ANY; @@ -91,6 +106,61 @@ int ff_qsv_init_internal_session(AVCodecContext *avctx, mfxSession *session) return ff_qsv_error(ret); } + + // this code is only required for Linux. It searches for a valid + // display handle. First in /dev/dri/renderD then in /dev/dri/card +#ifdef AVCODEC_QSV_LINUX_SESSION_HANDLE + // VAAPI display handle + VADisplay va_dpy = NULL; + VAStatus va_res = VA_STATUS_SUCCESS; + int major_version = 0, minor_version = 0; + int fd = -1; + char adapterpath[256]; + int adapter_num; + + //search for valid graphics device + for (adapter_num = 0;adapter_num < 6;adapter_num++) { + + if (adapter_num<3) { + snprintf(adapterpath,sizeof(adapterpath), + "/dev/dri/renderD%d", adapter_num+128); + } else { + snprintf(adapterpath,sizeof(adapterpath), + "/dev/dri/card%d", adapter_num-3); + } + + fd = open(adapterpath, O_RDWR); + if (fd < 0) { + av_log(avctx, AV_LOG_ERROR, + "mfx init: %s fd open failed\n", adapterpath); + continue; + } + + va_dpy = vaGetDisplayDRM(fd); + if (!va_dpy) { + av_log(avctx, AV_LOG_ERROR, + "mfx init: %s vaGetDisplayDRM failed\n", adapterpath); + close(fd); + continue; + } + + va_res = vaInitialize(va_dpy, &major_version, &minor_version); + if (VA_STATUS_SUCCESS != va_res) { + av_log(avctx, AV_LOG_ERROR, + "mfx init: %s vaInitialize failed\n", adapterpath); + close(fd); + fd = -1; + continue; + } else { + av_log(avctx, AV_LOG_VERBOSE, + "mfx initialization: %s vaInitialize successful\n",adapterpath); + break; + } + } + MFXVideoCORE_SetHandle((*session), (mfxHandleType)MFX_HANDLE_VA_DISPLAY, (mfxHDL)va_dpy); + +#endif //AVCODEC_QSV_LINUX_SESSION_HANDLE + MFXQueryIMPL(*session, &impl); switch (MFX_IMPL_BASETYPE(impl)) { diff --git a/libavcodec/qsv_internal.h b/libavcodec/qsv_internal.h index 86fca5fd8c..ae03bf3ae8 100644 --- a/libavcodec/qsv_internal.h +++ b/libavcodec/qsv_internal.h @@ -21,12 +21,27 @@ #ifndef AVCODEC_QSV_INTERNAL_H #define AVCODEC_QSV_INTERNAL_H +#if CONFIG_VAAPI +#define AVCODEC_QSV_LINUX_SESSION_HANDLE +#endif //CONFIG_VAAPI + +#ifdef AVCODEC_QSV_LINUX_SESSION_HANDLE +#include +#include +#if HAVE_UNISTD_H +#include +#endif +#include +#include +#include +#endif + #include #include "libavutil/frame.h" #define QSV_VERSION_MAJOR 1 -#define QSV_VERSION_MINOR 1 +#define QSV_VERSION_MINOR 9 #define ASYNC_DEPTH_DEFAULT 4 // internal parallelism