VDPAU_Decoding

Functions
static int	vdpau_error (VdpStatus status)
AVVDPAUContext *	av_alloc_vdpaucontext (void)
	allocation function for AVVDPAUContext More...
int	av_vdpau_get_surface_parameters (AVCodecContext *avctx, VdpChromaType *type, uint32_t *width, uint32_t *height)
	Gets the parameters to create an adequate VDPAU video surface for the codec context using VDPAU hardware decoding acceleration. More...
int	ff_vdpau_common_frame_params (AVCodecContext *avctx, AVBufferRef *hw_frames_ctx)
int	ff_vdpau_common_init (AVCodecContext *avctx, VdpDecoderProfile profile, int level)
int	ff_vdpau_common_uninit (AVCodecContext *avctx)
static int	ff_vdpau_common_reinit (AVCodecContext *avctx)
int	ff_vdpau_common_start_frame (struct vdpau_picture_context *pic_ctx, av_unused const uint8_t *buffer, av_unused uint32_t size)
int	ff_vdpau_common_end_frame (AVCodecContext *avctx, AVFrame *frame, struct vdpau_picture_context *pic_ctx)
int	ff_vdpau_add_buffer (struct vdpau_picture_context *pic_ctx, const uint8_t *buf, uint32_t size)
int	av_vdpau_get_profile (AVCodecContext *avctx, VdpDecoderProfile *profile)
	Get a decoder profile that should be used for initializing a VDPAU decoder. More...
AVVDPAUContext *	av_vdpau_alloc_context (void)
	Allocate an AVVDPAUContext. More...
int	av_vdpau_bind_context (AVCodecContext *avctx, VdpDevice device, VdpGetProcAddress *get_proc, unsigned flags)
	Associate a VDPAU device with a codec context for hardware acceleration. More...

Detailed Description

Function Documentation

static int vdpau_error ( VdpStatus  status )

static

Definition at line 43 of file vdpau.c.

Referenced by ff_vdpau_common_end_frame(), ff_vdpau_common_init(), and ff_vdpau_common_uninit().

AVVDPAUContext* av_alloc_vdpaucontext

(

void

)

allocation function for AVVDPAUContext

Allows extending the struct without breaking API/ABI

Definition at line 67 of file vdpau.c.

int av_vdpau_get_surface_parameters	(	AVCodecContext *	avctx,
		VdpChromaType *	type,
		uint32_t *	width,
		uint32_t *	height
	)

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().

Parameters

avctx	the codec context being used for decoding the stream
type	storage space for the VDPAU video surface chroma type (or NULL to ignore)
width	storage space for the VDPAU video surface pixel width (or NULL to ignore)
height	storage space for the VDPAU video surface pixel height (or NULL to ignore)

Returns

0 on success, a negative AVERROR code on failure.

Definition at line 74 of file vdpau.c.

Referenced by ff_vdpau_common_frame_params(), and ff_vdpau_common_init().

int ff_vdpau_common_frame_params	(	AVCodecContext *	avctx,
		AVBufferRef *	hw_frames_ctx
	)

Definition at line 114 of file vdpau.c.

int ff_vdpau_common_init	(	AVCodecContext *	avctx,
		VdpDecoderProfile	profile,
		int	level
	)

Definition at line 133 of file vdpau.c.

Referenced by vdpau_h264_init(), vdpau_hevc_init(), vdpau_mpeg4_init(), and vdpau_vc1_init().

int ff_vdpau_common_uninit

(

AVCodecContext *

avctx

)

Definition at line 284 of file vdpau.c.

static int ff_vdpau_common_reinit ( AVCodecContext *  avctx )

static

Definition at line 307 of file vdpau.c.

Referenced by ff_vdpau_common_end_frame().

int ff_vdpau_common_start_frame	(	struct vdpau_picture_context *	pic_ctx,
		av_unused const uint8_t *	buffer,
		av_unused uint32_t	size
	)

Definition at line 322 of file vdpau.c.

Referenced by vdpau_h264_start_frame(), vdpau_hevc_start_frame(), vdpau_mpeg4_start_frame(), vdpau_mpeg_start_frame(), and vdpau_vc1_start_frame().

int ff_vdpau_common_end_frame	(	AVCodecContext *	avctx,
		AVFrame *	frame,
		struct vdpau_picture_context *	pic_ctx
	)

Definition at line 332 of file vdpau.c.

Referenced by vdpau_h264_end_frame(), and vdpau_hevc_end_frame().

int ff_vdpau_add_buffer	(	struct vdpau_picture_context *	pic_ctx,
		const uint8_t *	buf,
		uint32_t	size
	)

Definition at line 377 of file vdpau.c.

Referenced by vdpau_h264_decode_slice(), vdpau_hevc_decode_slice(), vdpau_mpeg4_start_frame(), vdpau_mpeg_decode_slice(), and vdpau_vc1_decode_slice().

int av_vdpau_get_profile	(	AVCodecContext *	avctx,
		VdpDecoderProfile *	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.

Parameters

avctx	the codec context being used for decoding the stream
profile	a pointer into which the result will be written on success. The contents of profile are undefined if this function returns an error.

Returns

0 on success (non-negative), a negative AVERROR on failure.

Definition at line 397 of file vdpau.c.

AVVDPAUContext* av_vdpau_alloc_context

(

void

)

Allocate an AVVDPAUContext.

Returns

Newly-allocated AVVDPAUContext or NULL on failure.

Definition at line 445 of file vdpau.c.

Referenced by av_alloc_vdpaucontext().

int av_vdpau_bind_context	(	AVCodecContext *	avctx,
		VdpDevice	device,
		VdpGetProcAddress *	get_proc_address,
		unsigned	flags
	)

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.

Parameters

avctx	decoding context whose get_format() callback is invoked
device	VDPAU device handle to use for hardware acceleration
get_proc_address	VDPAU device driver
flags	zero of more OR'd AV_HWACCEL_FLAG_* flags

Returns

0 on success, an AVERROR code on failure.

Definition at line 450 of file vdpau.c.