FFmpeg
vdpau.c
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1 /*
2  * Video Decode and Presentation API for UNIX (VDPAU) is used for
3  * HW decode acceleration for MPEG-1/2, MPEG-4 ASP, H.264 and VC-1.
4  *
5  * Copyright (c) 2008 NVIDIA
6  *
7  * This file is part of FFmpeg.
8  *
9  * FFmpeg is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU Lesser General Public
11  * License as published by the Free Software Foundation; either
12  * version 2.1 of the License, or (at your option) any later version.
13  *
14  * FFmpeg is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17  * Lesser General Public License for more details.
18  *
19  * You should have received a copy of the GNU Lesser General Public
20  * License along with FFmpeg; if not, write to the Free Software
21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22  */
23 
24 #include <limits.h>
25 
26 #include "avcodec.h"
27 #include "decode.h"
28 #include "internal.h"
29 #include "h264dec.h"
30 #include "vc1.h"
31 #include "vdpau.h"
32 #include "vdpau_internal.h"
33 
34 // XXX: at the time of adding this ifdefery, av_assert* wasn't use outside.
35 // When dropping it, make sure other av_assert* were not added since then.
36 
37 /**
38  * @addtogroup VDPAU_Decoding
39  *
40  * @{
41  */
42 
43 static int vdpau_error(VdpStatus status)
44 {
45  switch (status) {
46  case VDP_STATUS_OK:
47  return 0;
48  case VDP_STATUS_NO_IMPLEMENTATION:
49  return AVERROR(ENOSYS);
50  case VDP_STATUS_DISPLAY_PREEMPTED:
51  return AVERROR(EIO);
52  case VDP_STATUS_INVALID_HANDLE:
53  return AVERROR(EBADF);
54  case VDP_STATUS_INVALID_POINTER:
55  return AVERROR(EFAULT);
56  case VDP_STATUS_RESOURCES:
57  return AVERROR(ENOBUFS);
58  case VDP_STATUS_HANDLE_DEVICE_MISMATCH:
59  return AVERROR(EXDEV);
60  case VDP_STATUS_ERROR:
61  return AVERROR(EIO);
62  default:
63  return AVERROR(EINVAL);
64  }
65 }
66 
68 {
69  return av_vdpau_alloc_context();
70 }
71 
72 MAKE_ACCESSORS(AVVDPAUContext, vdpau_hwaccel, AVVDPAU_Render2, render2)
73 
75  VdpChromaType *type,
76  uint32_t *width, uint32_t *height)
77 {
78  VdpChromaType t;
79  uint32_t w = avctx->coded_width;
80  uint32_t h = avctx->coded_height;
81 
82  /* See <vdpau/vdpau.h> for per-type alignment constraints. */
83  switch (avctx->sw_pix_fmt) {
84  case AV_PIX_FMT_YUV420P:
88  t = VDP_CHROMA_TYPE_420;
89  w = (w + 1) & ~1;
90  h = (h + 3) & ~3;
91  break;
92  case AV_PIX_FMT_YUV422P:
94  t = VDP_CHROMA_TYPE_422;
95  w = (w + 1) & ~1;
96  h = (h + 1) & ~1;
97  break;
98  case AV_PIX_FMT_YUV444P:
102  t = VDP_CHROMA_TYPE_444;
103  h = (h + 1) & ~1;
104  break;
105  default:
106  return AVERROR(ENOSYS);
107  }
108 
109  if (type)
110  *type = t;
111  if (width)
112  *width = w;
113  if (height)
114  *height = h;
115  return 0;
116 }
117 
119  AVBufferRef *hw_frames_ctx)
120 {
121  AVHWFramesContext *hw_frames = (AVHWFramesContext*)hw_frames_ctx->data;
122  VdpChromaType type;
123  uint32_t width;
124  uint32_t height;
125 
127  return AVERROR(EINVAL);
128 
129  hw_frames->format = AV_PIX_FMT_VDPAU;
130  hw_frames->sw_format = avctx->sw_pix_fmt;
131  hw_frames->width = width;
132  hw_frames->height = height;
133 
134  return 0;
135 }
136 
137 int ff_vdpau_common_init(AVCodecContext *avctx, VdpDecoderProfile profile,
138  int level)
139 {
140  VDPAUHWContext *hwctx = avctx->hwaccel_context;
141  VDPAUContext *vdctx = avctx->internal->hwaccel_priv_data;
142  VdpVideoSurfaceQueryCapabilities *surface_query_caps;
143  VdpDecoderQueryCapabilities *decoder_query_caps;
144  VdpDecoderCreate *create;
145  VdpGetInformationString *info;
146  const char *info_string;
147  void *func;
148  VdpStatus status;
149  VdpBool supported;
150  uint32_t max_level, max_mb, max_width, max_height;
151  VdpChromaType type;
152  uint32_t width;
153  uint32_t height;
154  int ret;
155 
156  vdctx->width = UINT32_MAX;
157  vdctx->height = UINT32_MAX;
158 
160  return AVERROR(ENOSYS);
161 
162  if (hwctx) {
163  hwctx->reset = 0;
164 
165  if (hwctx->context.decoder != VDP_INVALID_HANDLE) {
166  vdctx->decoder = hwctx->context.decoder;
167  vdctx->render = hwctx->context.render;
168  vdctx->device = VDP_INVALID_HANDLE;
169  return 0; /* Decoder created by user */
170  }
171 
172  vdctx->device = hwctx->device;
173  vdctx->get_proc_address = hwctx->get_proc_address;
174 
175  if (hwctx->flags & AV_HWACCEL_FLAG_IGNORE_LEVEL)
176  level = 0;
177 
178  if (!(hwctx->flags & AV_HWACCEL_FLAG_ALLOW_HIGH_DEPTH) &&
179  type != VDP_CHROMA_TYPE_420)
180  return AVERROR(ENOSYS);
181  } else {
182  AVHWFramesContext *frames_ctx;
183  AVVDPAUDeviceContext *dev_ctx;
184 
186  if (ret < 0)
187  return ret;
188 
189  frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
190  dev_ctx = frames_ctx->device_ctx->hwctx;
191 
192  vdctx->device = dev_ctx->device;
193  vdctx->get_proc_address = dev_ctx->get_proc_address;
194 
196  level = 0;
197  }
198 
199  if (level < 0)
200  return AVERROR(ENOTSUP);
201 
202  status = vdctx->get_proc_address(vdctx->device,
203  VDP_FUNC_ID_GET_INFORMATION_STRING,
204  &func);
205  if (status != VDP_STATUS_OK)
206  return vdpau_error(status);
207  else
208  info = func;
209 
210  status = info(&info_string);
211  if (status != VDP_STATUS_OK)
212  return vdpau_error(status);
213  if (avctx->codec_id == AV_CODEC_ID_HEVC && strncmp(info_string, "NVIDIA ", 7) == 0 &&
215  int driver_version = 0;
216  sscanf(info_string, "NVIDIA VDPAU Driver Shared Library %d", &driver_version);
217  if (driver_version < 410) {
218  av_log(avctx, AV_LOG_VERBOSE, "HEVC with NVIDIA VDPAU drivers is buggy, skipping.\n");
219  return AVERROR(ENOTSUP);
220  }
221  }
222 
223  status = vdctx->get_proc_address(vdctx->device,
224  VDP_FUNC_ID_VIDEO_SURFACE_QUERY_CAPABILITIES,
225  &func);
226  if (status != VDP_STATUS_OK)
227  return vdpau_error(status);
228  else
229  surface_query_caps = func;
230 
231  status = surface_query_caps(vdctx->device, type, &supported,
232  &max_width, &max_height);
233  if (status != VDP_STATUS_OK)
234  return vdpau_error(status);
235  if (supported != VDP_TRUE ||
236  max_width < width || max_height < height)
237  return AVERROR(ENOTSUP);
238 
239  status = vdctx->get_proc_address(vdctx->device,
240  VDP_FUNC_ID_DECODER_QUERY_CAPABILITIES,
241  &func);
242  if (status != VDP_STATUS_OK)
243  return vdpau_error(status);
244  else
245  decoder_query_caps = func;
246 
247  status = decoder_query_caps(vdctx->device, profile, &supported, &max_level,
248  &max_mb, &max_width, &max_height);
249 #ifdef VDP_DECODER_PROFILE_H264_CONSTRAINED_BASELINE
250  if ((status != VDP_STATUS_OK || supported != VDP_TRUE) && profile == VDP_DECODER_PROFILE_H264_CONSTRAINED_BASELINE) {
251  profile = VDP_DECODER_PROFILE_H264_MAIN;
252  status = decoder_query_caps(vdctx->device, profile, &supported,
253  &max_level, &max_mb,
254  &max_width, &max_height);
255  }
256 #endif
257  if (status != VDP_STATUS_OK)
258  return vdpau_error(status);
259 
260  if (supported != VDP_TRUE || max_level < level ||
261  max_width < width || max_height < height)
262  return AVERROR(ENOTSUP);
263 
264  status = vdctx->get_proc_address(vdctx->device, VDP_FUNC_ID_DECODER_CREATE,
265  &func);
266  if (status != VDP_STATUS_OK)
267  return vdpau_error(status);
268  else
269  create = func;
270 
271  status = vdctx->get_proc_address(vdctx->device, VDP_FUNC_ID_DECODER_RENDER,
272  &func);
273  if (status != VDP_STATUS_OK)
274  return vdpau_error(status);
275  else
276  vdctx->render = func;
277 
278  status = create(vdctx->device, profile, width, height, avctx->refs,
279  &vdctx->decoder);
280  if (status == VDP_STATUS_OK) {
281  vdctx->width = avctx->coded_width;
282  vdctx->height = avctx->coded_height;
283  }
284 
285  return vdpau_error(status);
286 }
287 
289 {
290  VDPAUContext *vdctx = avctx->internal->hwaccel_priv_data;
291  VdpDecoderDestroy *destroy;
292  void *func;
293  VdpStatus status;
294 
295  if (vdctx->device == VDP_INVALID_HANDLE)
296  return 0; /* Decoder created and destroyed by user */
297  if (vdctx->width == UINT32_MAX && vdctx->height == UINT32_MAX)
298  return 0;
299 
300  status = vdctx->get_proc_address(vdctx->device,
301  VDP_FUNC_ID_DECODER_DESTROY, &func);
302  if (status != VDP_STATUS_OK)
303  return vdpau_error(status);
304  else
305  destroy = func;
306 
307  status = destroy(vdctx->decoder);
308  return vdpau_error(status);
309 }
310 
312 {
313  VDPAUHWContext *hwctx = avctx->hwaccel_context;
314  VDPAUContext *vdctx = avctx->internal->hwaccel_priv_data;
315 
316  if (vdctx->device == VDP_INVALID_HANDLE)
317  return 0; /* Decoder created by user */
318  if (avctx->coded_width == vdctx->width &&
319  avctx->coded_height == vdctx->height && (!hwctx || !hwctx->reset))
320  return 0;
321 
322  avctx->hwaccel->uninit(avctx);
323  return avctx->hwaccel->init(avctx);
324 }
325 
327  av_unused const uint8_t *buffer,
328  av_unused uint32_t size)
329 {
330  pic_ctx->bitstream_buffers_allocated = 0;
331  pic_ctx->bitstream_buffers_used = 0;
332  pic_ctx->bitstream_buffers = NULL;
333  return 0;
334 }
335 
337  struct vdpau_picture_context *pic_ctx)
338 {
339  VDPAUContext *vdctx = avctx->internal->hwaccel_priv_data;
340  AVVDPAUContext *hwctx = avctx->hwaccel_context;
341  VdpVideoSurface surf = ff_vdpau_get_surface_id(frame);
342  VdpStatus status;
343  int val;
344 
345  val = ff_vdpau_common_reinit(avctx);
346  if (val < 0)
347  return val;
348 
349  if (hwctx && !hwctx->render && hwctx->render2) {
350  status = hwctx->render2(avctx, frame, (void *)&pic_ctx->info,
351  pic_ctx->bitstream_buffers_used, pic_ctx->bitstream_buffers);
352  } else
353  status = vdctx->render(vdctx->decoder, surf, &pic_ctx->info,
354  pic_ctx->bitstream_buffers_used,
355  pic_ctx->bitstream_buffers);
356 
357  av_freep(&pic_ctx->bitstream_buffers);
358 
359  return vdpau_error(status);
360 }
361 
362 #if CONFIG_MPEG1_VDPAU_HWACCEL || \
363  CONFIG_MPEG2_VDPAU_HWACCEL || CONFIG_MPEG4_VDPAU_HWACCEL || \
364  CONFIG_VC1_VDPAU_HWACCEL || CONFIG_WMV3_VDPAU_HWACCEL
366 {
367  MpegEncContext *s = avctx->priv_data;
368  Picture *pic = s->current_picture_ptr;
369  struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
370  int val;
371 
372  val = ff_vdpau_common_end_frame(avctx, pic->f, pic_ctx);
373  if (val < 0)
374  return val;
375 
376  ff_mpeg_draw_horiz_band(s, 0, s->avctx->height);
377  return 0;
378 }
379 #endif
380 
382  const uint8_t *buf, uint32_t size)
383 {
384  VdpBitstreamBuffer *buffers = pic_ctx->bitstream_buffers;
385 
386  buffers = av_fast_realloc(buffers, &pic_ctx->bitstream_buffers_allocated,
387  (pic_ctx->bitstream_buffers_used + 1) * sizeof(*buffers));
388  if (!buffers)
389  return AVERROR(ENOMEM);
390 
391  pic_ctx->bitstream_buffers = buffers;
392  buffers += pic_ctx->bitstream_buffers_used++;
393 
394  buffers->struct_version = VDP_BITSTREAM_BUFFER_VERSION;
395  buffers->bitstream = buf;
396  buffers->bitstream_bytes = size;
397  return 0;
398 }
399 
401 {
402  return av_mallocz(sizeof(VDPAUHWContext));
403 }
404 
405 int av_vdpau_bind_context(AVCodecContext *avctx, VdpDevice device,
406  VdpGetProcAddress *get_proc, unsigned flags)
407 {
408  VDPAUHWContext *hwctx;
409 
411  return AVERROR(EINVAL);
412 
413  if (av_reallocp(&avctx->hwaccel_context, sizeof(*hwctx)))
414  return AVERROR(ENOMEM);
415 
416  hwctx = avctx->hwaccel_context;
417 
418  memset(hwctx, 0, sizeof(*hwctx));
419  hwctx->context.decoder = VDP_INVALID_HANDLE;
420  hwctx->device = device;
421  hwctx->get_proc_address = get_proc;
422  hwctx->flags = flags;
423  hwctx->reset = 1;
424  return 0;
425 }
426 
427 /* @}*/
func
int(* func)(AVBPrint *dst, const char *in, const char *arg)
Definition: jacosubdec.c:68
AVHWDeviceContext::hwctx
void * hwctx
The format-specific data, allocated and freed by libavutil along with this context.
Definition: hwcontext.h:92
AVCodecContext::hwaccel
const struct AVHWAccel * hwaccel
Hardware accelerator in use.
Definition: avcodec.h:1355
AVCodecContext::hwaccel_context
void * hwaccel_context
Hardware accelerator context.
Definition: avcodec.h:1366
status
they must not be accessed directly The fifo field contains the frames that are queued in the input for processing by the filter The status_in and status_out fields contains the queued status(EOF or error) of the link
level
uint8_t level
Definition: svq3.c:204
ff_vdpau_common_frame_params
int ff_vdpau_common_frame_params(AVCodecContext *avctx, AVBufferRef *hw_frames_ctx)
Definition: vdpau.c:118
AVERROR
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
destroy
static void destroy(struct ResampleContext **c)
Definition: soxr_resample.c:64
AVBufferRef::data
uint8_t * data
The data buffer.
Definition: buffer.h:90
vc1.h
ff_vdpau_common_reinit
static int ff_vdpau_common_reinit(AVCodecContext *avctx)
Definition: vdpau.c:311
AVHWFramesContext::format
enum AVPixelFormat format
The pixel format identifying the underlying HW surface type.
Definition: hwcontext.h:209
av_unused
#define av_unused
Definition: attributes.h:131
profile
mfxU16 profile
Definition: qsvenc.c:45
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:303
VDPAUHWContext::get_proc_address
VdpGetProcAddress * get_proc_address
Definition: vdpau_internal.h:65
vdpau_picture_context::bitstream_buffers_used
int bitstream_buffers_used
Useful bitstream buffers in the bitstream buffers table.
Definition: vdpau_internal.h:109
w
uint8_t w
Definition: llviddspenc.c:38
internal.h
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:389
AVHWAccel::init
int(* init)(AVCodecContext *avctx)
Initialize the hwaccel private data.
Definition: avcodec.h:2163
AVVDPAUDeviceContext::get_proc_address
VdpGetProcAddress * get_proc_address
Definition: hwcontext_vdpau.h:37
AVVDPAUDeviceContext
This struct is allocated as AVHWDeviceContext.hwctx.
Definition: hwcontext_vdpau.h:35
AV_LOG_VERBOSE
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:196
Picture
Picture.
Definition: mpegpicture.h:45
AVHWFramesContext::width
int width
The allocated dimensions of the frames in this pool.
Definition: hwcontext.h:229
VDPAUContext::width
uint32_t width
Definition: vdpau_internal.h:91
VDPAUContext::render
VdpDecoderRender * render
VDPAU decoder render callback.
Definition: vdpau_internal.h:89
vdpau_internal.h
AV_HWACCEL_FLAG_IGNORE_LEVEL
#define AV_HWACCEL_FLAG_IGNORE_LEVEL
Hardware acceleration should be used for decoding even if the codec level used is unknown or higher t...
Definition: avcodec.h:2209
VDPAUHWContext::device
VdpDevice device
Definition: vdpau_internal.h:64
vdpau_picture_context
Definition: vdpau_internal.h:95
AVVDPAUContext
This structure is used to share data between the libavcodec library and the client video application.
Definition: vdpau.h:80
MAKE_ACCESSORS
#define MAKE_ACCESSORS(str, name, type, field)
Definition: internal.h:89
AVCodecContext::refs
int refs
number of reference frames
Definition: avcodec.h:928
ff_mpeg_draw_horiz_band
void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h)
Definition: mpegvideo.c:2260
val
static double val(void *priv, double ch)
Definition: aeval.c:75
type
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf type
Definition: writing_filters.txt:86
AVCodecContext::coded_height
int coded_height
Definition: avcodec.h:567
AVVDPAUContext::render2
AVVDPAU_Render2 render2
Definition: vdpau.h:95
ff_vdpau_add_buffer
int ff_vdpau_add_buffer(struct vdpau_picture_context *pic_ctx, const uint8_t *buf, uint32_t size)
Definition: vdpau.c:381
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:392
ff_vdpau_common_init
int ff_vdpau_common_init(AVCodecContext *avctx, VdpDecoderProfile profile, int level)
Definition: vdpau.c:137
vdpau.h
AVHWFramesContext::height
int height
Definition: hwcontext.h:229
AV_PIX_FMT_YUVJ422P
@ AV_PIX_FMT_YUVJ422P
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:79
av_fast_realloc
void * av_fast_realloc(void *ptr, unsigned int *size, size_t min_size)
Reallocate the given buffer if it is not large enough, otherwise do nothing.
Definition: mem.c:484
width
#define width
s
#define s(width, name)
Definition: cbs_vp9.c:257
AVHWAccel::uninit
int(* uninit)(AVCodecContext *avctx)
Uninitialize the hwaccel private data.
Definition: avcodec.h:2171
info
MIPS optimizations info
Definition: mips.txt:2
decode.h
limits.h
av_vdpau_bind_context
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.
Definition: vdpau.c:405
AV_HWACCEL_FLAG_ALLOW_HIGH_DEPTH
#define AV_HWACCEL_FLAG_ALLOW_HIGH_DEPTH
Hardware acceleration can output YUV pixel formats with a different chroma sampling than 4:2:0 and/or...
Definition: avcodec.h:2215
ff_vdpau_common_start_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: vdpau.c:326
AV_PIX_FMT_YUV420P
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
ff_vdpau_get_surface_id
static uintptr_t ff_vdpau_get_surface_id(AVFrame *pic)
Extract VdpVideoSurface from an AVFrame.
Definition: vdpau_internal.h:38
Picture::hwaccel_picture_private
void * hwaccel_picture_private
Hardware accelerator private data.
Definition: mpegpicture.h:78
AV_PIX_FMT_YUVJ444P
@ AV_PIX_FMT_YUVJ444P
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:80
ff_decode_get_hw_frames_ctx
int ff_decode_get_hw_frames_ctx(AVCodecContext *avctx, enum AVHWDeviceType dev_type)
Make sure avctx.hw_frames_ctx is set.
Definition: decode.c:934
AVCodecContext::codec_id
enum AVCodecID codec_id
Definition: avcodec.h:389
if
if(ret)
Definition: filter_design.txt:179
NULL
#define NULL
Definition: coverity.c:32
AVHWFramesContext::sw_format
enum AVPixelFormat sw_format
The pixel format identifying the actual data layout of the hardware frames.
Definition: hwcontext.h:222
create
static struct ResampleContext * create(struct ResampleContext *c, int out_rate, int in_rate, int filter_size, int phase_shift, int linear, double cutoff, enum AVSampleFormat format, enum SwrFilterType filter_type, double kaiser_beta, double precision, int cheby, int exact_rational)
Definition: soxr_resample.c:32
VDPAUContext::height
uint32_t height
Definition: vdpau_internal.h:92
AVCodecContext::internal
struct AVCodecInternal * internal
Private context used for internal data.
Definition: avcodec.h:414
AV_PIX_FMT_YUVJ420P
@ AV_PIX_FMT_YUVJ420P
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:78
ff_vdpau_common_end_frame
int ff_vdpau_common_end_frame(AVCodecContext *avctx, AVFrame *frame, struct vdpau_picture_context *pic_ctx)
Definition: vdpau.c:336
AV_HWACCEL_FLAG_ALLOW_PROFILE_MISMATCH
#define AV_HWACCEL_FLAG_ALLOW_PROFILE_MISMATCH
Hardware acceleration should still be attempted for decoding when the codec profile does not match th...
Definition: avcodec.h:2229
AVVDPAUContext::render
VdpDecoderRender * render
VDPAU decoder render callback.
Definition: vdpau.h:93
VDPAUHWContext
Definition: vdpau_internal.h:62
av_vdpau_get_surface_parameters
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 hardw...
Definition: vdpau.c:74
VDPAUContext::device
VdpDevice device
VDPAU device handle.
Definition: vdpau_internal.h:74
ff_vdpau_common_uninit
int ff_vdpau_common_uninit(AVCodecContext *avctx)
Definition: vdpau.c:288
VDPAUContext
Definition: vdpau_internal.h:70
AVVDPAUContext::decoder
VdpDecoder decoder
VDPAU decoder handle.
Definition: vdpau.h:86
AVCodecInternal::hwaccel_priv_data
void * hwaccel_priv_data
hwaccel-specific private data
Definition: internal.h:183
size
int size
Definition: twinvq_data.h:10344
av_reallocp
int av_reallocp(void *ptr, size_t size)
Allocate, reallocate, or free a block of memory through a pointer to a pointer.
Definition: mem.c:167
VDPAUContext::decoder
VdpDecoder decoder
VDPAU decoder handle.
Definition: vdpau_internal.h:79
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:396
ff_vdpau_mpeg_end_frame
int ff_vdpau_mpeg_end_frame(AVCodecContext *avctx)
height
#define height
AV_PIX_FMT_VDPAU
@ AV_PIX_FMT_VDPAU
HW acceleration through VDPAU, Picture.data[3] contains a VdpVideoSurface.
Definition: pixfmt.h:187
h264dec.h
VDPAUHWContext::reset
char reset
Definition: vdpau_internal.h:66
AVCodecContext::hwaccel_flags
int hwaccel_flags
Bit set of AV_HWACCEL_FLAG_* flags, which affect hardware accelerated decoding (if active).
Definition: avcodec.h:1911
vdpau_picture_context::bitstream_buffers
VdpBitstreamBuffer * bitstream_buffers
Table of bitstream buffers.
Definition: vdpau_internal.h:114
AV_CODEC_ID_HEVC
@ AV_CODEC_ID_HEVC
Definition: codec_id.h:224
av_vdpau_alloc_context
AVVDPAUContext * av_vdpau_alloc_context(void)
Allocate an AVVDPAUContext.
Definition: vdpau.c:400
AVVDPAU_Render2
int(* AVVDPAU_Render2)(struct AVCodecContext *, struct AVFrame *, const VdpPictureInfo *, uint32_t, const VdpBitstreamBuffer *)
Definition: vdpau.h:62
av_mallocz
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:243
VDPAUHWContext::context
AVVDPAUContext context
Definition: vdpau_internal.h:63
AV_HWDEVICE_TYPE_VDPAU
@ AV_HWDEVICE_TYPE_VDPAU
Definition: hwcontext.h:29
AVCodecContext::hw_frames_ctx
AVBufferRef * hw_frames_ctx
A reference to the AVHWFramesContext describing the input (for encoding) or output (decoding) frames.
Definition: avcodec.h:1853
avcodec.h
AVHWFramesContext
This struct describes a set or pool of "hardware" frames (i.e.
Definition: hwcontext.h:124
ret
ret
Definition: filter_design.txt:187
frame
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a frame
Definition: filter_design.txt:264
AVHWFramesContext::device_ctx
AVHWDeviceContext * device_ctx
The parent AVHWDeviceContext.
Definition: hwcontext.h:149
VDPAUContext::get_proc_address
VdpGetProcAddress * get_proc_address
VDPAU device driver.
Definition: vdpau_internal.h:84
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:393
vdpau_picture_context::bitstream_buffers_allocated
int bitstream_buffers_allocated
Allocated size of the bitstream_buffers table.
Definition: vdpau_internal.h:104
AVCodecContext
main external API structure.
Definition: avcodec.h:379
vdpau_picture_context::info
union VDPAUPictureInfo info
VDPAU picture information.
Definition: vdpau_internal.h:99
buffer
the frame and frame reference mechanism is intended to as much as expensive copies of that data while still allowing the filters to produce correct results The data is stored in buffers represented by AVFrame structures Several references can point to the same frame buffer
Definition: filter_design.txt:49
Picture::f
struct AVFrame * f
Definition: mpegpicture.h:46
AV_PIX_FMT_YUV444P
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
AVCodecContext::coded_width
int coded_width
Bitstream width / height, may be different from width/height e.g.
Definition: avcodec.h:567
vdpau_error
static int vdpau_error(VdpStatus status)
Definition: vdpau.c:43
AV_PIX_FMT_YUV422P
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
AVBufferRef
A reference to a data buffer.
Definition: buffer.h:82
av_alloc_vdpaucontext
AVVDPAUContext * av_alloc_vdpaucontext(void)
allocation function for AVVDPAUContext
Definition: vdpau.c:67
VDPAUHWContext::flags
unsigned char flags
Definition: vdpau_internal.h:67
AVCodecContext::priv_data
void * priv_data
Definition: avcodec.h:406
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:35
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:561
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:28
h
h
Definition: vp9dsp_template.c:2038
AVCodecContext::sw_pix_fmt
enum AVPixelFormat sw_pix_fmt
Nominal unaccelerated pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:1713
AVVDPAUDeviceContext::device
VdpDevice device
Definition: hwcontext_vdpau.h:36
int
int
Definition: ffmpeg_filter.c:156
MpegEncContext
MpegEncContext.
Definition: mpegvideo.h:81