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video-info-dma: add gst_video_info_dma_drm_to_video_info()

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Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4883>
This commit is contained in:
He Junyan 2023-06-18 16:16:59 +08:00 committed by GStreamer Marge Bot
parent 6accb7a1f5
commit a10e05000d
3 changed files with 78 additions and 0 deletions
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22
girs/GstVideo-1.0.gir
View file

@ -11394,6 +11394,28 @@ info in @drm_info.</doc>
</instance-parameter>
</parameters>
</method>
<method name="to_video_info" c:identifier="gst_video_info_dma_drm_to_video_info" version="1.24">
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/video/video-info-dma.c">Convert the #GstVideoInfoDmaDrm into a traditional #GstVideoInfo with
recognized video format. For DMA kind memory, the non linear DMA format
should be recognized as #GST_VIDEO_FORMAT_ENCODED. This helper function
sets @info's video format into the default value according to @drm_info's
drm_fourcc field.</doc>
<source-position filename="../subprojects/gst-plugins-base/gst-libs/gst/video/video-info-dma.h"/>
<return-value transfer-ownership="none">
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/video/video-info-dma.c">%TRUE if @info is converted correctly.</doc>
<type name="gboolean" c:type="gboolean"/>
</return-value>
<parameters>
<instance-parameter name="drm_info" transfer-ownership="none">
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/video/video-info-dma.c">a #GstVideoInfoDmaDrm</doc>
<type name="VideoInfoDmaDrm" c:type="const GstVideoInfoDmaDrm*"/>
</instance-parameter>
<parameter name="info" direction="out" caller-allocates="1" transfer-ownership="none">
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/video/video-info-dma.c">#GstVideoInfo</doc>
<type name="VideoInfo" c:type="GstVideoInfo*"/>
</parameter>
</parameters>
</method>
<function name="from_caps" c:identifier="gst_video_info_dma_drm_from_caps" version="1.24">
<doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/video/video-info-dma.c">Parse @caps and update @info. Please note that the @caps should be
a dma drm caps. The gst_video_is_dma_drm_caps() can be used to verify

51
subprojects/gst-plugins-base/gst-libs/gst/video/video-info-dma.c
View file

@ -442,6 +442,57 @@ gst_video_info_dma_drm_from_video_info (GstVideoInfoDmaDrm * drm_info,
GST_VIDEO_INFO_WIDTH (info), GST_VIDEO_INFO_HEIGHT (info));
}
/**
* gst_video_info_dma_drm_to_video_info:
* @drm_info: a #GstVideoInfoDmaDrm
* @info: (out caller-allocates): #GstVideoInfo
*
* Convert the #GstVideoInfoDmaDrm into a traditional #GstVideoInfo with
* recognized video format. For DMA kind memory, the non linear DMA format
* should be recognized as #GST_VIDEO_FORMAT_ENCODED. This helper function
* sets @info's video format into the default value according to @drm_info's
* drm_fourcc field.
*
* Returns: %TRUE if @info is converted correctly.
*
* Since: 1.24
*/
gboolean
gst_video_info_dma_drm_to_video_info (const GstVideoInfoDmaDrm * drm_info,
GstVideoInfo * info)
{
GstVideoFormat video_format;
GstVideoInfo tmp_info;
guint i;
g_return_val_if_fail (drm_info, FALSE);
g_return_val_if_fail (info, FALSE);
if (GST_VIDEO_INFO_FORMAT (&drm_info->vinfo) != GST_VIDEO_FORMAT_ENCODED) {
*info = drm_info->vinfo;
return TRUE;
}
video_format = gst_video_dma_drm_fourcc_to_format (drm_info->drm_fourcc);
if (video_format == GST_VIDEO_FORMAT_UNKNOWN)
return FALSE;
if (!gst_video_info_set_format (&tmp_info, video_format,
GST_VIDEO_INFO_WIDTH (&drm_info->vinfo),
GST_VIDEO_INFO_HEIGHT (&drm_info->vinfo)))
return FALSE;
*info = drm_info->vinfo;
info->finfo = tmp_info.finfo;
for (i = 0; i < GST_VIDEO_MAX_PLANES; i++)
info->stride[i] = tmp_info.stride[i];
for (i = 0; i < GST_VIDEO_MAX_PLANES; i++)
info->offset[i] = tmp_info.offset[i];
info->size = tmp_info.size;
return TRUE;
}
/**
* gst_video_dma_drm_fourcc_from_string:
* @format_str: a drm format string

5
subprojects/gst-plugins-base/gst-libs/gst/video/video-info-dma.h
View file

@ -75,6 +75,11 @@ gboolean gst_video_info_dma_drm_from_video_info
(GstVideoInfoDmaDrm * drm_info,
const GstVideoInfo * info,
guint64 modifier);
GST_VIDEO_API
gboolean gst_video_info_dma_drm_to_video_info (const GstVideoInfoDmaDrm * drm_info,
GstVideoInfo * info);
GST_VIDEO_API
GstVideoInfoDmaDrm * gst_video_info_dma_drm_new_from_caps (const GstCaps * caps);