FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/vdpau.c
Date: 2025-04-25 22:50:00
Exec Total Coverage
Lines: 0 214 0.0%
Functions: 0 11 0.0%
Branches: 0 119 0.0%

Line Branch Exec Source
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 "config_components.h"
25
26 #include "libavutil/mem.h"
27 #include "avcodec.h"
28 #include "decode.h"
29 #include "hwaccel_internal.h"
30 #include "internal.h"
31 #include "vdpau.h"
32 #include "vdpau_internal.h"
33
34 /**
35 * @addtogroup VDPAU_Decoding
36 *
37 * @{
38 */
39
40 static int vdpau_error(VdpStatus status)
41 {
42 switch (status) {
43 case VDP_STATUS_OK:
44 return 0;
45 case VDP_STATUS_NO_IMPLEMENTATION:
46 return AVERROR(ENOSYS);
47 case VDP_STATUS_DISPLAY_PREEMPTED:
48 return AVERROR(EIO);
49 case VDP_STATUS_INVALID_HANDLE:
50 return AVERROR(EBADF);
51 case VDP_STATUS_INVALID_POINTER:
52 return AVERROR(EFAULT);
53 case VDP_STATUS_RESOURCES:
54 return AVERROR(ENOBUFS);
55 case VDP_STATUS_HANDLE_DEVICE_MISMATCH:
56 return AVERROR(EXDEV);
57 case VDP_STATUS_ERROR:
58 return AVERROR(EIO);
59 default:
60 return AVERROR(EINVAL);
61 }
62 }
63
64 int av_vdpau_get_surface_parameters(AVCodecContext *avctx,
65 VdpChromaType *type,
66 uint32_t *width, uint32_t *height)
67 {
68 VdpChromaType t;
69 uint32_t w = avctx->coded_width;
70 uint32_t h = avctx->coded_height;
71
72 /* See <vdpau/vdpau.h> for per-type alignment constraints. */
73 switch (avctx->sw_pix_fmt) {
74 case AV_PIX_FMT_YUV420P:
75 case AV_PIX_FMT_YUVJ420P:
76 case AV_PIX_FMT_YUV420P10:
77 case AV_PIX_FMT_YUV420P12:
78 t = VDP_CHROMA_TYPE_420;
79 w = (w + 1) & ~1;
80 h = (h + 3) & ~3;
81 break;
82 case AV_PIX_FMT_YUV422P:
83 case AV_PIX_FMT_YUVJ422P:
84 t = VDP_CHROMA_TYPE_422;
85 w = (w + 1) & ~1;
86 h = (h + 1) & ~1;
87 break;
88 case AV_PIX_FMT_YUV444P:
89 case AV_PIX_FMT_YUVJ444P:
90 case AV_PIX_FMT_YUV444P10:
91 case AV_PIX_FMT_YUV444P12:
92 t = VDP_CHROMA_TYPE_444;
93 h = (h + 1) & ~1;
94 break;
95 default:
96 return AVERROR(ENOSYS);
97 }
98
99 if (type)
100 *type = t;
101 if (width)
102 *width = w;
103 if (height)
104 *height = h;
105 return 0;
106 }
107
108 int ff_vdpau_common_frame_params(AVCodecContext *avctx,
109 AVBufferRef *hw_frames_ctx)
110 {
111 AVHWFramesContext *hw_frames = (AVHWFramesContext*)hw_frames_ctx->data;
112 VdpChromaType type;
113 uint32_t width;
114 uint32_t height;
115
116 if (av_vdpau_get_surface_parameters(avctx, &type, &width, &height))
117 return AVERROR(EINVAL);
118
119 hw_frames->format = AV_PIX_FMT_VDPAU;
120 hw_frames->sw_format = avctx->sw_pix_fmt;
121 hw_frames->width = width;
122 hw_frames->height = height;
123
124 return 0;
125 }
126
127 av_cold int ff_vdpau_common_init(AVCodecContext *avctx,
128 VdpDecoderProfile profile, int level)
129 {
130 VDPAUHWContext *hwctx = avctx->hwaccel_context;
131 VDPAUContext *vdctx = avctx->internal->hwaccel_priv_data;
132 VdpVideoSurfaceQueryCapabilities *surface_query_caps;
133 VdpDecoderQueryCapabilities *decoder_query_caps;
134 VdpDecoderCreate *create;
135 VdpGetInformationString *info;
136 const char *info_string;
137 void *func;
138 VdpStatus status;
139 VdpBool supported;
140 uint32_t max_level, max_mb, max_width, max_height;
141 VdpChromaType type;
142 uint32_t width;
143 uint32_t height;
144 int ret;
145
146 vdctx->width = UINT32_MAX;
147 vdctx->height = UINT32_MAX;
148
149 if (av_vdpau_get_surface_parameters(avctx, &type, &width, &height))
150 return AVERROR(ENOSYS);
151
152 if (hwctx) {
153 hwctx->reset = 0;
154
155 if (hwctx->context.decoder != VDP_INVALID_HANDLE) {
156 vdctx->decoder = hwctx->context.decoder;
157 vdctx->render = hwctx->context.render;
158 vdctx->device = VDP_INVALID_HANDLE;
159 return 0; /* Decoder created by user */
160 }
161
162 vdctx->device = hwctx->device;
163 vdctx->get_proc_address = hwctx->get_proc_address;
164
165 if (hwctx->flags & AV_HWACCEL_FLAG_IGNORE_LEVEL)
166 level = 0;
167
168 if (!(hwctx->flags & AV_HWACCEL_FLAG_ALLOW_HIGH_DEPTH) &&
169 type != VDP_CHROMA_TYPE_420)
170 return AVERROR(ENOSYS);
171 } else {
172 AVHWFramesContext *frames_ctx;
173 AVVDPAUDeviceContext *dev_ctx;
174
175 ret = ff_decode_get_hw_frames_ctx(avctx, AV_HWDEVICE_TYPE_VDPAU);
176 if (ret < 0)
177 return ret;
178
179 frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
180 dev_ctx = frames_ctx->device_ctx->hwctx;
181
182 vdctx->device = dev_ctx->device;
183 vdctx->get_proc_address = dev_ctx->get_proc_address;
184
185 if (avctx->hwaccel_flags & AV_HWACCEL_FLAG_IGNORE_LEVEL)
186 level = 0;
187 }
188
189 if (level < 0)
190 return AVERROR(ENOTSUP);
191
192 status = vdctx->get_proc_address(vdctx->device,
193 VDP_FUNC_ID_GET_INFORMATION_STRING,
194 &func);
195 if (status != VDP_STATUS_OK)
196 return vdpau_error(status);
197 else
198 info = func;
199
200 status = info(&info_string);
201 if (status != VDP_STATUS_OK)
202 return vdpau_error(status);
203 if (avctx->codec_id == AV_CODEC_ID_HEVC && strncmp(info_string, "NVIDIA ", 7) == 0 &&
204 !(avctx->hwaccel_flags & AV_HWACCEL_FLAG_ALLOW_PROFILE_MISMATCH)) {
205 int driver_version = 0;
206 sscanf(info_string, "NVIDIA VDPAU Driver Shared Library %d", &driver_version);
207 if (driver_version < 410) {
208 av_log(avctx, AV_LOG_VERBOSE, "HEVC with NVIDIA VDPAU drivers is buggy, skipping.\n");
209 return AVERROR(ENOTSUP);
210 }
211 }
212
213 status = vdctx->get_proc_address(vdctx->device,
214 VDP_FUNC_ID_VIDEO_SURFACE_QUERY_CAPABILITIES,
215 &func);
216 if (status != VDP_STATUS_OK)
217 return vdpau_error(status);
218 else
219 surface_query_caps = func;
220
221 status = surface_query_caps(vdctx->device, type, &supported,
222 &max_width, &max_height);
223 if (status != VDP_STATUS_OK)
224 return vdpau_error(status);
225 if (supported != VDP_TRUE ||
226 max_width < width || max_height < height)
227 return AVERROR(ENOTSUP);
228
229 status = vdctx->get_proc_address(vdctx->device,
230 VDP_FUNC_ID_DECODER_QUERY_CAPABILITIES,
231 &func);
232 if (status != VDP_STATUS_OK)
233 return vdpau_error(status);
234 else
235 decoder_query_caps = func;
236
237 status = decoder_query_caps(vdctx->device, profile, &supported, &max_level,
238 &max_mb, &max_width, &max_height);
239 #ifdef VDP_DECODER_PROFILE_H264_CONSTRAINED_BASELINE
240 if ((status != VDP_STATUS_OK || supported != VDP_TRUE) && profile == VDP_DECODER_PROFILE_H264_CONSTRAINED_BASELINE) {
241 profile = VDP_DECODER_PROFILE_H264_MAIN;
242 status = decoder_query_caps(vdctx->device, profile, &supported,
243 &max_level, &max_mb,
244 &max_width, &max_height);
245 }
246 #endif
247 if (status != VDP_STATUS_OK)
248 return vdpau_error(status);
249
250 if (supported != VDP_TRUE || max_level < level ||
251 max_width < width || max_height < height)
252 return AVERROR(ENOTSUP);
253
254 status = vdctx->get_proc_address(vdctx->device, VDP_FUNC_ID_DECODER_CREATE,
255 &func);
256 if (status != VDP_STATUS_OK)
257 return vdpau_error(status);
258 else
259 create = func;
260
261 status = vdctx->get_proc_address(vdctx->device, VDP_FUNC_ID_DECODER_RENDER,
262 &func);
263 if (status != VDP_STATUS_OK)
264 return vdpau_error(status);
265 else
266 vdctx->render = func;
267
268 status = create(vdctx->device, profile, width, height, avctx->refs,
269 &vdctx->decoder);
270 if (status == VDP_STATUS_OK) {
271 vdctx->width = avctx->coded_width;
272 vdctx->height = avctx->coded_height;
273 }
274
275 return vdpau_error(status);
276 }
277
278 av_cold int ff_vdpau_common_uninit(AVCodecContext *avctx)
279 {
280 VDPAUContext *vdctx = avctx->internal->hwaccel_priv_data;
281 VdpDecoderDestroy *destroy;
282 void *func;
283 VdpStatus status;
284
285 if (vdctx->device == VDP_INVALID_HANDLE)
286 return 0; /* Decoder created and destroyed by user */
287 if (vdctx->width == UINT32_MAX && vdctx->height == UINT32_MAX)
288 return 0;
289
290 status = vdctx->get_proc_address(vdctx->device,
291 VDP_FUNC_ID_DECODER_DESTROY, &func);
292 if (status != VDP_STATUS_OK)
293 return vdpau_error(status);
294 else
295 destroy = func;
296
297 status = destroy(vdctx->decoder);
298 return vdpau_error(status);
299 }
300
301 static int ff_vdpau_common_reinit(AVCodecContext *avctx)
302 {
303 VDPAUHWContext *hwctx = avctx->hwaccel_context;
304 VDPAUContext *vdctx = avctx->internal->hwaccel_priv_data;
305
306 if (vdctx->device == VDP_INVALID_HANDLE)
307 return 0; /* Decoder created by user */
308 if (avctx->coded_width == vdctx->width &&
309 avctx->coded_height == vdctx->height && (!hwctx || !hwctx->reset))
310 return 0;
311
312 FF_HW_SIMPLE_CALL(avctx, uninit);
313 return FF_HW_SIMPLE_CALL(avctx, init);
314 }
315
316 int ff_vdpau_common_start_frame(struct vdpau_picture_context *pic_ctx,
317 av_unused const uint8_t *buffer,
318 av_unused uint32_t size)
319 {
320 pic_ctx->bitstream_buffers_allocated = 0;
321 pic_ctx->bitstream_buffers_used = 0;
322 pic_ctx->bitstream_buffers = NULL;
323 return 0;
324 }
325
326 int ff_vdpau_common_end_frame(AVCodecContext *avctx, AVFrame *frame,
327 struct vdpau_picture_context *pic_ctx)
328 {
329 VDPAUContext *vdctx = avctx->internal->hwaccel_priv_data;
330 AVVDPAUContext *hwctx = avctx->hwaccel_context;
331 VdpVideoSurface surf = ff_vdpau_get_surface_id(frame);
332 VdpStatus status;
333 int val;
334
335 val = ff_vdpau_common_reinit(avctx);
336 if (val < 0)
337 return val;
338
339 if (hwctx && !hwctx->render && hwctx->render2) {
340 status = hwctx->render2(avctx, frame, (void *)&pic_ctx->info,
341 pic_ctx->bitstream_buffers_used, pic_ctx->bitstream_buffers);
342 } else
343 status = vdctx->render(vdctx->decoder, surf, &pic_ctx->info,
344 pic_ctx->bitstream_buffers_used,
345 pic_ctx->bitstream_buffers);
346
347 av_freep(&pic_ctx->bitstream_buffers);
348
349 return vdpau_error(status);
350 }
351
352 #if CONFIG_MPEG1_VDPAU_HWACCEL || \
353 CONFIG_MPEG2_VDPAU_HWACCEL || CONFIG_MPEG4_VDPAU_HWACCEL || \
354 CONFIG_VC1_VDPAU_HWACCEL || CONFIG_WMV3_VDPAU_HWACCEL
355 #include "mpegvideodec.h"
356
357 int ff_vdpau_mpeg_end_frame(AVCodecContext *avctx)
358 {
359 MpegEncContext *s = avctx->priv_data;
360 MPVPicture *pic = s->cur_pic.ptr;
361 struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
362 int val;
363
364 val = ff_vdpau_common_end_frame(avctx, pic->f, pic_ctx);
365 if (val < 0)
366 return val;
367
368 ff_mpeg_draw_horiz_band(s, 0, s->avctx->height);
369 return 0;
370 }
371 #endif
372
373 int ff_vdpau_add_buffer(struct vdpau_picture_context *pic_ctx,
374 const uint8_t *buf, uint32_t size)
375 {
376 VdpBitstreamBuffer *buffers = pic_ctx->bitstream_buffers;
377
378 buffers = av_fast_realloc(buffers, &pic_ctx->bitstream_buffers_allocated,
379 (pic_ctx->bitstream_buffers_used + 1) * sizeof(*buffers));
380 if (!buffers)
381 return AVERROR(ENOMEM);
382
383 pic_ctx->bitstream_buffers = buffers;
384 buffers += pic_ctx->bitstream_buffers_used++;
385
386 buffers->struct_version = VDP_BITSTREAM_BUFFER_VERSION;
387 buffers->bitstream = buf;
388 buffers->bitstream_bytes = size;
389 return 0;
390 }
391
392 int av_vdpau_bind_context(AVCodecContext *avctx, VdpDevice device,
393 VdpGetProcAddress *get_proc, unsigned flags)
394 {
395 VDPAUHWContext *hwctx;
396
397 if (flags & ~(AV_HWACCEL_FLAG_IGNORE_LEVEL|AV_HWACCEL_FLAG_ALLOW_HIGH_DEPTH))
398 return AVERROR(EINVAL);
399
400 if (av_reallocp(&avctx->hwaccel_context, sizeof(*hwctx)))
401 return AVERROR(ENOMEM);
402
403 hwctx = avctx->hwaccel_context;
404
405 memset(hwctx, 0, sizeof(*hwctx));
406 hwctx->context.decoder = VDP_INVALID_HANDLE;
407 hwctx->device = device;
408 hwctx->get_proc_address = get_proc;
409 hwctx->flags = flags;
410 hwctx->reset = 1;
411 return 0;
412 }
413
414 /* @}*/
415