libopenh264dec: Export the decoded profile and level in AVCodecContext

[ffmpeg] / libavcodec / vdpau.h

diff --git a/libavcodec/vdpau.h b/libavcodec/vdpau.h
index a58931503b32db39c903b9aa1c7a7a91eb9b9ffa..a5d31cb37b9db856f2087f6af7a78be6844ae951 100644 (file)
--- a/libavcodec/vdpau.h
+++ b/libavcodec/vdpau.h
@@ -50,14 +50,11 @@
  */
 
 #include <vdpau/vdpau.h>
-#include <vdpau/vdpau_x11.h>
 
-union AVVDPAUPictureInfo {
-    VdpPictureInfoH264        h264;
-    VdpPictureInfoMPEG1Or2    mpeg;
-    VdpPictureInfoVC1          vc1;
-    VdpPictureInfoMPEG4Part2 mpeg4;
-};
+#include "libavutil/attributes.h"
+
+#include "avcodec.h"
+#include "version.h"
 
 /**
  * This structure is used to share data between the libavcodec library and
@@ -67,6 +64,10 @@ union AVVDPAUPictureInfo {
  * during initialization or through each AVCodecContext.get_buffer()
  * function call. In any case, they must be valid prior to calling
  * decoding functions.
+ *
+ * The size of this structure is not a part of the public ABI and must not
+ * be used outside of libavcodec. Use av_vdpau_alloc_context() to allocate an
+ * AVVDPAUContext.
  */
 typedef struct AVVDPAUContext {
     /**
@@ -82,69 +83,72 @@ typedef struct AVVDPAUContext {
      * Set by the user.
      */
     VdpDecoderRender *render;
-
-    /**
-     * VDPAU picture information
-     *
-     * Set by libavcodec.
-     */
-    union AVVDPAUPictureInfo info;
-
-    /**
-     * Allocated size of the bitstream_buffers table.
-     *
-     * Set by libavcodec.
-     */
-    int bitstream_buffers_allocated;
-
-    /**
-     * Useful bitstream buffers in the bitstream buffers table.
-     *
-     * Set by libavcodec.
-     */
-    int bitstream_buffers_used;
-
-   /**
-     * Table of bitstream buffers.
-     * The user is responsible for freeing this buffer using av_freep().
-     *
-     * Set by libavcodec.
-     */
-    VdpBitstreamBuffer *bitstream_buffers;
 } AVVDPAUContext;
 
-
-/** @brief The videoSurface is used for rendering. */
-#define FF_VDPAU_STATE_USED_FOR_RENDER 1
-
 /**
- * @brief The videoSurface is needed for reference/prediction.
- * The codec manipulates this.
+ * Associate a VDPAU device with a codec context for hardware acceleration.
+ * This function is meant to be called from the get_format() codec callback,
+ * or earlier. It can also be called after avcodec_flush_buffers() to change
+ * the underlying VDPAU device mid-stream (e.g. to recover from non-transparent
+ * display preemption).
+ *
+ * @note get_format() must return AV_PIX_FMT_VDPAU if this function completes
+ * successfully.
+ *
+ * @param avctx decoding context whose get_format() callback is invoked
+ * @param device VDPAU device handle to use for hardware acceleration
+ * @param get_proc_address VDPAU device driver
+ * @param flags zero of more OR'd AV_HWACCEL_FLAG_* flags
+ *
+ * @return 0 on success, an AVERROR code on failure.
  */
-#define FF_VDPAU_STATE_USED_FOR_REFERENCE 2
+int av_vdpau_bind_context(AVCodecContext *avctx, VdpDevice device,
+                          VdpGetProcAddress *get_proc_address, unsigned flags);
 
 /**
- * @brief This structure is used as a callback between the Libav
- * decoder (vd_) and presentation (vo_) module.
- * This is used for defining a video frame containing surface,
- * picture parameter, bitstream information etc which are passed
- * between the Libav decoder and its clients.
+ * Gets the parameters to create an adequate VDPAU video surface for the codec
+ * context using VDPAU hardware decoding acceleration.
+ *
+ * @note Behavior is undefined if the context was not successfully bound to a
+ * VDPAU device using av_vdpau_bind_context().
+ *
+ * @param avctx the codec context being used for decoding the stream
+ * @param type storage space for the VDPAU video surface chroma type
+ *              (or NULL to ignore)
+ * @param width storage space for the VDPAU video surface pixel width
+ *              (or NULL to ignore)
+ * @param height storage space for the VDPAU video surface pixel height
+ *              (or NULL to ignore)
+ *
+ * @return 0 on success, a negative AVERROR code on failure.
  */
-struct vdpau_render_state {
-    VdpVideoSurface surface; ///< Used as rendered surface, never changed.
-
-    int state; ///< Holds FF_VDPAU_STATE_* values.
+int av_vdpau_get_surface_parameters(AVCodecContext *avctx, VdpChromaType *type,
+                                    uint32_t *width, uint32_t *height);
 
-    /** picture parameter information for all supported codecs */
-    union AVVDPAUPictureInfo info;
+/**
+ * Allocate an AVVDPAUContext.
+ *
+ * @return Newly-allocated AVVDPAUContext or NULL on failure.
+ */
+AVVDPAUContext *av_vdpau_alloc_context(void);
 
-    /** Describe size/location of the compressed video data.
-        Set to 0 when freeing bitstream_buffers. */
-    int bitstream_buffers_allocated;
-    int bitstream_buffers_used;
-    /** The user is responsible for freeing this buffer using av_freep(). */
-    VdpBitstreamBuffer *bitstream_buffers;
-};
+#if FF_API_VDPAU_PROFILE
+/**
+ * Get a decoder profile that should be used for initializing a VDPAU decoder.
+ * Should be called from the AVCodecContext.get_format() callback.
+ *
+ * @deprecated Use av_vdpau_bind_context() instead.
+ *
+ * @param avctx the codec context being used for decoding the stream
+ * @param profile a pointer into which the result will be written on success.
+ *                The contents of profile are undefined if this function returns
+ *                an error.
+ *
+ * @return 0 on success (non-negative), a negative AVERROR on failure.
+ */
+attribute_deprecated
+int av_vdpau_get_profile(AVCodecContext *avctx, VdpDecoderProfile *profile);
+#endif
 
 /* @}*/