@@ -80,6 +80,18 @@ static const char *const hw_type_names[] = {
[AV_HWDEVICE_TYPE_VULKAN] = "vulkan",
};
+enum AVHWDeviceType av_hwdevice_get_type_by_pix_fmt(enum AVPixelFormat fmt)
+{
+ int i, j;
+ for (i = 0; hw_table[i]; i++) {
+ for (j = 0; hw_table[i]->pix_fmts[j] != AV_PIX_FMT_NONE; j++) {
+ if (hw_table[i]->pix_fmts[j] == fmt)
+ return hw_table[i]->type;
+ }
+ }
+ return AV_HWDEVICE_TYPE_NONE;
+}
+
enum AVHWDeviceType av_hwdevice_find_type_by_name(const char *name)
{
int type;
@@ -229,6 +229,15 @@ typedef struct AVHWFramesContext {
int width, height;
} AVHWFramesContext;
+/**
+ * Get the device type by a given pixel format.
+ *
+ * @param fmt Pixel format from enum AVPixelFormat.
+ * @return The type from enum AVHWDeviceType, or AV_HWDEVICE_TYPE_NONE if
+ * not found.
+ */
+enum AVHWDeviceType av_hwdevice_get_type_by_pix_fmt(enum AVPixelFormat fmt);
+
/**
* Look up an AVHWDeviceType by name.
*
Add a function to get the corresponding AVHWDeviceType from a given hardware pixel format. Signed-off-by: Tong Wu <tong1.wu@intel.com> --- libavutil/hwcontext.c | 12 ++++++++++++ libavutil/hwcontext.h | 9 +++++++++ 2 files changed, 21 insertions(+)