From: Gwenole Beauchesne <[email protected]>
---
va/va_enc_h264.h | 17 ++++++++++++++---
1 files changed, 14 insertions(+), 3 deletions(-)
diff --git a/va/va_enc_h264.h b/va/va_enc_h264.h
index 4a7e7ee..cd2a3bd 100644
--- a/va/va_enc_h264.h
+++ b/va/va_enc_h264.h
@@ -231,10 +231,21 @@ typedef struct _VAEncSequenceParameterBufferH264 {
* \c vaRenderPicture() call as this picture parameter buffer.
*/
typedef struct _VAEncPictureParameterBufferH264 {
- /** \brief Information about the picture to be encoded. */
+ /**
+ * \brief Information about the picture to be encoded.
+ *
+ * See #VAPictureH264 for further description of each field.
+ * Note that CurrPic.picture_id represents the reconstructed
+ * (decoded) picture. User provides a scratch VA surface ID here.
+ */
VAPictureH264 CurrPic;
- /** \brief Decoded Picture Buffer (DPB).
- * XXX: is this really used?
+ /**
+ * \brief Decoded Picture Buffer (DPB).
+ *
+ * This array represents the list of reconstructed (decoded)
+ * frames used as reference. It is important to keep track of
+ * reconstructed frames so that they can be used later on as
+ * reference for P or B-frames encoding.
*/
VAPictureH264 ReferenceFrames[16];
/**
--
1.7.4.1
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