*
* Copyright (C) 2008 NVIDIA
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#define AVCODEC_VDPAU_H
/**
- * \defgroup Decoder VDPAU Decoder and Renderer
+ * @file
+ * @ingroup lavc_codec_hwaccel_vdpau
+ * Public libavcodec VDPAU header.
+ */
+
+
+/**
+ * @defgroup lavc_codec_hwaccel_vdpau VDPAU Decoder and Renderer
+ * @ingroup lavc_codec_hwaccel
*
* VDPAU hardware acceleration has two modules
* - VDPAU decoding
* - VDPAU presentation
*
- * The VDPAU decoding module parses all headers using FFmpeg
+ * The VDPAU decoding module parses all headers using Libav
* parsing mechanisms and uses VDPAU for the actual decoding.
*
* As per the current implementation, the actual decoding
* presentation (vo_vdpau.c) module.
*
* @{
- * \defgroup VDPAU_Decoding VDPAU Decoding
- * \ingroup Decoder
- * @{
*/
#include <vdpau/vdpau.h>
#include <vdpau/vdpau_x11.h>
-/** \brief The videoSurface is used for rendering. */
+#include "libavutil/attributes.h"
+
+#include "avcodec.h"
+#include "version.h"
+
+#if FF_API_BUFS_VDPAU
+union AVVDPAUPictureInfo {
+ VdpPictureInfoH264 h264;
+ VdpPictureInfoMPEG1Or2 mpeg;
+ VdpPictureInfoVC1 vc1;
+ VdpPictureInfoMPEG4Part2 mpeg4;
+};
+#endif
+
+/**
+ * This structure is used to share data between the libavcodec library and
+ * the client video application.
+ * The user shall zero-allocate the structure and make it available as
+ * AVCodecContext.hwaccel_context. Members can be set by the user once
+ * 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 {
+ /**
+ * VDPAU decoder handle
+ *
+ * Set by user.
+ */
+ VdpDecoder decoder;
+
+ /**
+ * VDPAU decoder render callback
+ *
+ * Set by the user.
+ */
+ VdpDecoderRender *render;
+
+#if FF_API_BUFS_VDPAU
+ /**
+ * VDPAU picture information
+ *
+ * Set by libavcodec.
+ */
+ attribute_deprecated
+ union AVVDPAUPictureInfo info;
+
+ /**
+ * Allocated size of the bitstream_buffers table.
+ *
+ * Set by libavcodec.
+ */
+ attribute_deprecated
+ int bitstream_buffers_allocated;
+
+ /**
+ * Useful bitstream buffers in the bitstream buffers table.
+ *
+ * Set by libavcodec.
+ */
+ attribute_deprecated
+ int bitstream_buffers_used;
+
+ /**
+ * Table of bitstream buffers.
+ * The user is responsible for freeing this buffer using av_freep().
+ *
+ * Set by libavcodec.
+ */
+ attribute_deprecated
+ VdpBitstreamBuffer *bitstream_buffers;
+#endif
+} AVVDPAUContext;
+
+/**
+ * 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
+ * succesfully.
+ *
+ * @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.
+ */
+int av_vdpau_bind_context(AVCodecContext *avctx, VdpDevice device,
+ VdpGetProcAddress *get_proc_address, unsigned flags);
+
+/**
+ * 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.
+ */
+int av_vdpau_get_surface_parameters(AVCodecContext *avctx, VdpChromaType *type,
+ uint32_t *width, uint32_t *height);
+
+/**
+ * Allocate an AVVDPAUContext.
+ *
+ * @return Newly-allocated AVVDPAUContext or NULL on failure.
+ */
+AVVDPAUContext *av_vdpau_alloc_context(void);
+
+#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
+
+#if FF_API_CAP_VDPAU
+/** @brief The videoSurface is used for rendering. */
#define FF_VDPAU_STATE_USED_FOR_RENDER 1
/**
- * \brief The videoSurface is needed for reference/prediction.
+ * @brief The videoSurface is needed for reference/prediction.
* The codec manipulates this.
*/
#define FF_VDPAU_STATE_USED_FOR_REFERENCE 2
/**
- * \brief This structure is used as a callback between the FFmpeg
+ * @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 FFmpeg decoder and its clients.
+ * between the Libav decoder and its clients.
*/
struct vdpau_render_state {
VdpVideoSurface surface; ///< Used as rendered surface, never changed.
int state; ///< Holds FF_VDPAU_STATE_* values.
/** picture parameter information for all supported codecs */
- union VdpPictureInfo {
- VdpPictureInfoH264 h264;
- VdpPictureInfoMPEG1Or2 mpeg;
- VdpPictureInfoVC1 vc1;
- } info;
+ union AVVDPAUPictureInfo info;
/** Describe size/location of the compressed video data.
Set to 0 when freeing bitstream_buffers. */
/** The user is responsible for freeing this buffer using av_freep(). */
VdpBitstreamBuffer *bitstream_buffers;
};
+#endif
/* @}*/
projects / ffmpeg / blobdiff