[FFmpeg-devel] [PATCH 1/3] lavu/hwcontext_vaapi: Add option to allow to specify vendor id when init hw device

[FFmpeg-devel] [PATCH 1/3] lavu/hwcontext_vaapi: Add option to allow to specify vendor id when init hw device

[fei.w.wang-at-intel.com]

From: Fei Wang <fei.w.wang@intel.com>

Vendor id will help to select desired device in case of kernel driver is
unknow or unsupported, for vendor may support different kernel driver on
different platforms.

Signed-off-by: Fei Wang <fei.w.wang@intel.com>
---
 doc/ffmpeg.texi             |  8 ++++++++
 libavutil/hwcontext_vaapi.c | 29 +++++++++++++++++++++++++++++
 libavutil/version.h         |  2 +-
 3 files changed, 38 insertions(+), 1 deletion(-)

diff --git a/doc/ffmpeg.texi b/doc/ffmpeg.texi
index 877edae3b3..842e92ad1a 100644
--- a/doc/ffmpeg.texi
+++ b/doc/ffmpeg.texi
@@ -1458,6 +1458,11 @@ The following options are recognized:
 When @var{device} is not specified, use this option to specify the name of the kernel
 driver associated with the desired device. This option is available only when
 the hardware acceleration method @emph{drm} and @emph{vaapi} are enabled.
+@item vendor_id
+When @var{device} and @var{kernel_driver} are not specified, use this option to specify
+the vendor id associated with the desired device. This option is available only when the
+hardware acceleration method @emph{drm} and @emph{vaapi} are enabled and @emph{kernel_driver}
+is not specified.
 @end table
 
 Examples:
@@ -1473,6 +1478,9 @@ Create a vaapi device on DirectX adapter 1.
 
 @item -init_hw_device vaapi:,kernel_driver=i915
 Create a vaapi device on a device associated with kernel driver @samp{i915}.
+
+@item -init_hw_device vaapi:,vendor_id=0x8086
+Create a vaapi device on a device associated with vendor id @samp{0x8086}.
 @end table
 
 @item vdpau
diff --git a/libavutil/hwcontext_vaapi.c b/libavutil/hwcontext_vaapi.c
index 4cb25dd032..014541752a 100644
--- a/libavutil/hwcontext_vaapi.c
+++ b/libavutil/hwcontext_vaapi.c
@@ -1748,7 +1748,9 @@ static int vaapi_device_create(AVHWDeviceContext *ctx, const char *device,
 #if CONFIG_LIBDRM
             drmVersion *info;
             const AVDictionaryEntry *kernel_driver;
+            const AVDictionaryEntry *vendor_id;
             kernel_driver = av_dict_get(opts, "kernel_driver", NULL, 0);
+            vendor_id = av_dict_get(opts, "vendor_id", NULL, 0);
 #endif
             for (n = 0; n < max_devices; n++) {
                 snprintf(path, sizeof(path),
@@ -1803,6 +1805,33 @@ static int vaapi_device_create(AVHWDeviceContext *ctx, const char *device,
                     close(priv->drm_fd);
                     priv->drm_fd = -1;
                     continue;
+                } else if (vendor_id) {
+                    drmDevicePtr device;
+                    char drm_vendor[8];
+                    if (drmGetDevice(priv->drm_fd, &device)) {
+                        av_log(ctx, AV_LOG_VERBOSE,
+                               "Failed to get DRM device info for device %d.\n", n);
+                        close(priv->drm_fd);
+                        priv->drm_fd = -1;
+                        continue;
+                    }
+
+                    snprintf(drm_vendor, sizeof(drm_vendor), "0x%x", device->deviceinfo.pci->vendor_id);
+                    if (strcmp(vendor_id->value, drm_vendor)) {
+                        av_log(ctx, AV_LOG_VERBOSE, "Ignoring device %d "
+                               "with non-matching vendor id (%s).\n",
+                               n, vendor_id->value);
+                        drmFreeDevice(&device);
+                        close(priv->drm_fd);
+                        priv->drm_fd = -1;
+                        continue;
+                    }
+                    av_log(ctx, AV_LOG_VERBOSE, "Trying to use "
+                           "DRM render node for device %d, "
+                           "with matching vendor id (%s).\n",
+                           n, vendor_id->value);
+                    drmFreeDevice(&device);
+                    break;
                 }
                 drmFreeVersion(info);
 #endif
diff --git a/libavutil/version.h b/libavutil/version.h
index 814892a4d5..852eeef1d6 100644
--- a/libavutil/version.h
+++ b/libavutil/version.h
@@ -79,7 +79,7 @@
  */
 
 #define LIBAVUTIL_VERSION_MAJOR  59
-#define LIBAVUTIL_VERSION_MINOR  28
+#define LIBAVUTIL_VERSION_MINOR  29
 #define LIBAVUTIL_VERSION_MICRO 100
 
 #define LIBAVUTIL_VERSION_INT   AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
-- 
2.34.1

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[FFmpeg-devel] [PATCH 2/3] lavu/hwcontext_qsv: Use vendor id to create device

[fei.w.wang-at-intel.com]

From: Fei Wang <fei.w.wang@intel.com>

New kernel driver "xe" will be supported from Lunar Lake instead of
"i915".

"xe" kernel driver:
https://github.com/torvalds/linux/tree/master/drivers/gpu/drm/xe

Signed-off-by: Fei Wang <fei.w.wang@intel.com>
---
 libavutil/hwcontext_qsv.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libavutil/hwcontext_qsv.c b/libavutil/hwcontext_qsv.c
index 7cec347478..af0a3e1051 100644
--- a/libavutil/hwcontext_qsv.c
+++ b/libavutil/hwcontext_qsv.c
@@ -2569,8 +2569,8 @@ static int qsv_device_create(AVHWDeviceContext *ctx, const char *device,
             // used on recent Intel hardware.  Set options to the VAAPI device
             // creation so that we should pick a usable setup by default if
             // possible, even when multiple devices and drivers are available.
-            av_dict_set(&child_device_opts, "kernel_driver", "i915", 0);
-            av_dict_set(&child_device_opts, "driver",        "iHD",  0);
+            av_dict_set(&child_device_opts, "vendor_id", "0x8086", 0);
+            av_dict_set(&child_device_opts, "driver",    "iHD",    0);
         }
         break;
 #endif
-- 
2.34.1

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[FFmpeg-devel] [PATCH 3/3] lavc/qsv: Use vendor id to create device

[fei.w.wang-at-intel.com]

From: Fei Wang <fei.w.wang@intel.com>

New kernel driver "xe" will be supported from Lunar Lake instead of
"i915".

"xe" kernel driver:
https://github.com/torvalds/linux/tree/master/drivers/gpu/drm/xe

Signed-off-by: Fei Wang <fei.w.wang@intel.com>
---
 libavcodec/qsv.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libavcodec/qsv.c b/libavcodec/qsv.c
index 0c6fbd0dc0..acf0991757 100644
--- a/libavcodec/qsv.c
+++ b/libavcodec/qsv.c
@@ -464,8 +464,8 @@ static int ff_qsv_set_display_handle(AVCodecContext *avctx, QSVSession *qs)
     AVVAAPIDeviceContext *hwctx;
     int ret;
 
-    av_dict_set(&child_device_opts, "kernel_driver", "i915", 0);
-    av_dict_set(&child_device_opts, "driver",        "iHD",  0);
+    av_dict_set(&child_device_opts, "vendor_id", "0x8086", 0);
+    av_dict_set(&child_device_opts, "driver",    "iHD",    0);
 
     ret = av_hwdevice_ctx_create(&qs->va_device_ref, AV_HWDEVICE_TYPE_VAAPI, NULL, child_device_opts, 0);
     av_dict_free(&child_device_opts);
-- 
2.34.1

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Re: [FFmpeg-devel] [PATCH 1/3] lavu/hwcontext_vaapi: Add option to allow to specify vendor id when init hw device

[Xiang, Haihao]

On Vr, 2024-07-26 at 09:05 +0800, fei.w.wang-at-intel.com@ffmpeg.org wrote:
> From: Fei Wang <fei.w.wang@intel.com>
> 
> Vendor id will help to select desired device in case of kernel driver is
> unknow or unsupported, for vendor may support different kernel driver on
> different platforms.
> 
> Signed-off-by: Fei Wang <fei.w.wang@intel.com>
> ---
>  doc/ffmpeg.texi             |  8 ++++++++
>  libavutil/hwcontext_vaapi.c | 29 +++++++++++++++++++++++++++++
>  libavutil/version.h         |  2 +-
>  3 files changed, 38 insertions(+), 1 deletion(-)
> 
> diff --git a/doc/ffmpeg.texi b/doc/ffmpeg.texi
> index 877edae3b3..842e92ad1a 100644
> --- a/doc/ffmpeg.texi
> +++ b/doc/ffmpeg.texi
> @@ -1458,6 +1458,11 @@ The following options are recognized:
>  When @var{device} is not specified, use this option to specify the name of
> the kernel
>  driver associated with the desired device. This option is available only when
>  the hardware acceleration method @emph{drm} and @emph{vaapi} are enabled.
> +@item vendor_id
> +When @var{device} and @var{kernel_driver} are not specified, use this option
> to specify
> +the vendor id associated with the desired device. This option is available
> only when the
> +hardware acceleration method @emph{drm} and @emph{vaapi} are enabled and
> @emph{kernel_driver}
> +is not specified.
>  @end table
>  
>  Examples:
> @@ -1473,6 +1478,9 @@ Create a vaapi device on DirectX adapter 1.
>  
>  @item -init_hw_device vaapi:,kernel_driver=i915
>  Create a vaapi device on a device associated with kernel driver @samp{i915}.
> +
> +@item -init_hw_device vaapi:,vendor_id=0x8086
> +Create a vaapi device on a device associated with vendor id @samp{0x8086}.
>  @end table
>  
>  @item vdpau
> diff --git a/libavutil/hwcontext_vaapi.c b/libavutil/hwcontext_vaapi.c
> index 4cb25dd032..014541752a 100644
> --- a/libavutil/hwcontext_vaapi.c
> +++ b/libavutil/hwcontext_vaapi.c
> @@ -1748,7 +1748,9 @@ static int vaapi_device_create(AVHWDeviceContext *ctx,
> const char *device,
>  #if CONFIG_LIBDRM
>              drmVersion *info;
>              const AVDictionaryEntry *kernel_driver;
> +            const AVDictionaryEntry *vendor_id;
>              kernel_driver = av_dict_get(opts, "kernel_driver", NULL, 0);
> +            vendor_id = av_dict_get(opts, "vendor_id", NULL, 0);
>  #endif
>              for (n = 0; n < max_devices; n++) {
>                  snprintf(path, sizeof(path),
> @@ -1803,6 +1805,33 @@ static int vaapi_device_create(AVHWDeviceContext *ctx,
> const char *device,
>                      close(priv->drm_fd);
>                      priv->drm_fd = -1;
>                      continue;
> +                } else if (vendor_id) {
> +                    drmDevicePtr device;
> +                    char drm_vendor[8];
> +                    if (drmGetDevice(priv->drm_fd, &device)) {
> +                        av_log(ctx, AV_LOG_VERBOSE,
> +                               "Failed to get DRM device info for device
> %d.\n", n);
> +                        close(priv->drm_fd);
> +                        priv->drm_fd = -1;
> +                        continue;
> +                    }
> +
> +                    snprintf(drm_vendor, sizeof(drm_vendor), "0x%x", device-
> >deviceinfo.pci->vendor_id);
> +                    if (strcmp(vendor_id->value, drm_vendor)) {
> +                        av_log(ctx, AV_LOG_VERBOSE, "Ignoring device %d "
> +                               "with non-matching vendor id (%s).\n",
> +                               n, vendor_id->value);
> +                        drmFreeDevice(&device);
> +                        close(priv->drm_fd);
> +                        priv->drm_fd = -1;
> +                        continue;
> +                    }
> +                    av_log(ctx, AV_LOG_VERBOSE, "Trying to use "
> +                           "DRM render node for device %d, "
> +                           "with matching vendor id (%s).\n",
> +                           n, vendor_id->value);
> +                    drmFreeDevice(&device);
> +                    break;
>                  }
>                  drmFreeVersion(info);
>  #endif
> diff --git a/libavutil/version.h b/libavutil/version.h
> index 814892a4d5..852eeef1d6 100644
> --- a/libavutil/version.h
> +++ b/libavutil/version.h
> @@ -79,7 +79,7 @@
>   */
>  
>  #define LIBAVUTIL_VERSION_MAJOR  59
> -#define LIBAVUTIL_VERSION_MINOR  28
> +#define LIBAVUTIL_VERSION_MINOR  29
>  #define LIBAVUTIL_VERSION_MICRO 100
>  
>  #define LIBAVUTIL_VERSION_INT   AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \

Patchset LGTM, I will apply these patches if there are no objections.

Thanks
Haihao
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Re: [FFmpeg-devel] [PATCH 1/3] lavu/hwcontext_vaapi: Add option to allow to specify vendor id when init hw device

[Xiang, Haihao]

On Ma, 2024-08-05 at 02:14 +0000, Xiang, Haihao wrote:
> On Vr, 2024-07-26 at 09:05 +0800, fei.w.wang-at-intel.com@ffmpeg.org wrote:
> > From: Fei Wang <fei.w.wang@intel.com>
> > 
> > Vendor id will help to select desired device in case of kernel driver is
> > unknow or unsupported, for vendor may support different kernel driver on
> > different platforms.
> > 
> > Signed-off-by: Fei Wang <fei.w.wang@intel.com>
> > ---
> >  doc/ffmpeg.texi             |  8 ++++++++
> >  libavutil/hwcontext_vaapi.c | 29 +++++++++++++++++++++++++++++
> >  libavutil/version.h         |  2 +-
> >  3 files changed, 38 insertions(+), 1 deletion(-)
> > 
> > diff --git a/doc/ffmpeg.texi b/doc/ffmpeg.texi
> > index 877edae3b3..842e92ad1a 100644
> > --- a/doc/ffmpeg.texi
> > +++ b/doc/ffmpeg.texi
> > @@ -1458,6 +1458,11 @@ The following options are recognized:
> >  When @var{device} is not specified, use this option to specify the name of
> > the kernel
> >  driver associated with the desired device. This option is available only
> > when
> >  the hardware acceleration method @emph{drm} and @emph{vaapi} are enabled.
> > +@item vendor_id
> > +When @var{device} and @var{kernel_driver} are not specified, use this
> > option
> > to specify
> > +the vendor id associated with the desired device. This option is available
> > only when the
> > +hardware acceleration method @emph{drm} and @emph{vaapi} are enabled and
> > @emph{kernel_driver}
> > +is not specified.
> >  @end table
> >  
> >  Examples:
> > @@ -1473,6 +1478,9 @@ Create a vaapi device on DirectX adapter 1.
> >  
> >  @item -init_hw_device vaapi:,kernel_driver=i915
> >  Create a vaapi device on a device associated with kernel driver
> > @samp{i915}.
> > +
> > +@item -init_hw_device vaapi:,vendor_id=0x8086
> > +Create a vaapi device on a device associated with vendor id @samp{0x8086}.
> >  @end table
> >  
> >  @item vdpau
> > diff --git a/libavutil/hwcontext_vaapi.c b/libavutil/hwcontext_vaapi.c
> > index 4cb25dd032..014541752a 100644
> > --- a/libavutil/hwcontext_vaapi.c
> > +++ b/libavutil/hwcontext_vaapi.c
> > @@ -1748,7 +1748,9 @@ static int vaapi_device_create(AVHWDeviceContext *ctx,
> > const char *device,
> >  #if CONFIG_LIBDRM
> >              drmVersion *info;
> >              const AVDictionaryEntry *kernel_driver;
> > +            const AVDictionaryEntry *vendor_id;
> >              kernel_driver = av_dict_get(opts, "kernel_driver", NULL, 0);
> > +            vendor_id = av_dict_get(opts, "vendor_id", NULL, 0);
> >  #endif
> >              for (n = 0; n < max_devices; n++) {
> >                  snprintf(path, sizeof(path),
> > @@ -1803,6 +1805,33 @@ static int vaapi_device_create(AVHWDeviceContext
> > *ctx,
> > const char *device,
> >                      close(priv->drm_fd);
> >                      priv->drm_fd = -1;
> >                      continue;
> > +                } else if (vendor_id) {
> > +                    drmDevicePtr device;
> > +                    char drm_vendor[8];
> > +                    if (drmGetDevice(priv->drm_fd, &device)) {
> > +                        av_log(ctx, AV_LOG_VERBOSE,
> > +                               "Failed to get DRM device info for device
> > %d.\n", n);
> > +                        close(priv->drm_fd);
> > +                        priv->drm_fd = -1;
> > +                        continue;
> > +                    }
> > +
> > +                    snprintf(drm_vendor, sizeof(drm_vendor), "0x%x",
> > device-
> > > deviceinfo.pci->vendor_id);
> > +                    if (strcmp(vendor_id->value, drm_vendor)) {
> > +                        av_log(ctx, AV_LOG_VERBOSE, "Ignoring device %d "
> > +                               "with non-matching vendor id (%s).\n",
> > +                               n, vendor_id->value);
> > +                        drmFreeDevice(&device);
> > +                        close(priv->drm_fd);
> > +                        priv->drm_fd = -1;
> > +                        continue;
> > +                    }
> > +                    av_log(ctx, AV_LOG_VERBOSE, "Trying to use "
> > +                           "DRM render node for device %d, "
> > +                           "with matching vendor id (%s).\n",
> > +                           n, vendor_id->value);
> > +                    drmFreeDevice(&device);
> > +                    break;
> >                  }
> >                  drmFreeVersion(info);
> >  #endif
> > diff --git a/libavutil/version.h b/libavutil/version.h
> > index 814892a4d5..852eeef1d6 100644
> > --- a/libavutil/version.h
> > +++ b/libavutil/version.h
> > @@ -79,7 +79,7 @@
> >   */
> >  
> >  #define LIBAVUTIL_VERSION_MAJOR  59
> > -#define LIBAVUTIL_VERSION_MINOR  28
> > +#define LIBAVUTIL_VERSION_MINOR  29
> >  #define LIBAVUTIL_VERSION_MICRO 100
> >  
> >  #define LIBAVUTIL_VERSION_INT   AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
> 
> Patchset LGTM, I will apply these patches if there are no objections.
> 

Applied, thx

-Haihao

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