24 #include <vdpau/vdpau.h> 44 info->forward_reference = VDP_INVALID_HANDLE;
45 info->backward_reference = VDP_INVALID_HANDLE;
46 info->vop_coding_type = 0;
51 assert(ref != VDP_INVALID_HANDLE);
52 info->backward_reference =
ref;
53 info->vop_coding_type = 2;
57 assert(ref != VDP_INVALID_HANDLE);
58 info->forward_reference =
ref;
66 info->vop_fcode_forward = s->
f_code;
67 info->vop_fcode_backward = s->
b_code;
76 for (i = 0; i < 64; ++
i) {
98 profile = VDP_DECODER_PROFILE_MPEG4_PART2_SP;
104 profile = VDP_DECODER_PROFILE_MPEG4_PART2_ASP;
114 .
name =
"mpeg4_vdpau",
#define FF_PROFILE_MPEG4_SIMPLE
const struct AVCodec * codec
int resync_marker
could this stream contain resync markers
int ff_vdpau_common_start_frame(struct vdpau_picture_context *pic_ctx, av_unused const uint8_t *buffer, av_unused uint32_t size)
Public libavcodec VDPAU header.
int ff_vdpau_common_uninit(AVCodecContext *avctx)
int no_rounding
apply no rounding to motion compensation (MPEG-4, msmpeg4, ...) for B-frames rounding mode is always ...
uint16_t pp_time
time distance between the last 2 p,s,i frames
int ff_vdpau_common_init(AVCodecContext *avctx, VdpDecoderProfile profile, int level)
VdpPictureInfoMPEG4Part2 mpeg4
int quarter_sample
1->qpel, 0->half pel ME/MC
static int vdpau_mpeg4_decode_slice(av_unused AVCodecContext *avctx, av_unused const uint8_t *buffer, av_unused uint32_t size)
#define HWACCEL_CAP_ASYNC_SAFE
const char * name
Name of the hardware accelerated codec.
Picture * current_picture_ptr
pointer to the current picture
#define FF_PROFILE_UNKNOWN
void * hwaccel_picture_private
Hardware accelerator private data.
int ff_vdpau_common_frame_params(AVCodecContext *avctx, AVBufferRef *hw_frames_ctx)
static int vdpau_mpeg4_init(AVCodecContext *avctx)
uint16_t inter_matrix[64]
Libavcodec external API header.
int ff_vdpau_mpeg_end_frame(AVCodecContext *avctx)
main external API structure.
#define FF_PROFILE_MPEG4_ADVANCED_SIMPLE
HW acceleration through VDPAU, Picture.data[3] contains a VdpVideoSurface.
int f_code
forward MV resolution
int pict_type
AV_PICTURE_TYPE_I, AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, ...
uint16_t pb_field_time
like above, just for interlaced
struct AVCodecContext * avctx
static int ref[MAX_W *MAX_W]
int ff_vdpau_add_buffer(struct vdpau_picture_context *pic_ctx, const uint8_t *buf, uint32_t size)
Picture last_picture
copy of the previous picture structure.
static int vdpau_mpeg4_start_frame(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
union VDPAUPictureInfo info
VDPAU picture information.
Picture next_picture
copy of the next picture structure.
const AVHWAccel ff_mpeg4_vdpau_hwaccel
uint16_t intra_matrix[64]
matrix transmitted in the bitstream
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later.That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another.Frame references ownership and permissions
int b_code
backward MV resolution for B-frames (MPEG-4)
uint16_t pb_time
time distance between the last b and p,s,i frame
static uintptr_t ff_vdpau_get_surface_id(AVFrame *pic)
Extract VdpVideoSurface from an AVFrame.