qsv: Add VP8 decoder
[libav.git] / libavcodec / qsv.c
1 /*
2 * Intel MediaSDK QSV encoder/decoder shared code
3 *
4 * This file is part of Libav.
5 *
6 * Libav is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * Libav is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with Libav; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #include <mfx/mfxvideo.h>
22 #include <mfx/mfxplugin.h>
23
24 #include <stdio.h>
25 #include <string.h>
26
27 #include "libavutil/avstring.h"
28 #include "libavutil/common.h"
29 #include "libavutil/error.h"
30 #include "libavutil/hwcontext.h"
31 #include "libavutil/hwcontext_qsv.h"
32 #include "libavutil/imgutils.h"
33
34 #include "avcodec.h"
35 #include "qsv_internal.h"
36
37 #if QSV_VERSION_ATLEAST(1, 12)
38 #include "mfx/mfxvp8.h"
39 #endif
40
41 int ff_qsv_codec_id_to_mfx(enum AVCodecID codec_id)
42 {
43 switch (codec_id) {
44 case AV_CODEC_ID_H264:
45 return MFX_CODEC_AVC;
46 #if QSV_VERSION_ATLEAST(1, 8)
47 case AV_CODEC_ID_HEVC:
48 return MFX_CODEC_HEVC;
49 #endif
50 case AV_CODEC_ID_MPEG1VIDEO:
51 case AV_CODEC_ID_MPEG2VIDEO:
52 return MFX_CODEC_MPEG2;
53 case AV_CODEC_ID_VC1:
54 return MFX_CODEC_VC1;
55 #if QSV_VERSION_ATLEAST(1, 12)
56 case AV_CODEC_ID_VP8:
57 return MFX_CODEC_VP8;
58 #endif
59 default:
60 break;
61 }
62
63 return AVERROR(ENOSYS);
64 }
65
66 int ff_qsv_profile_to_mfx(enum AVCodecID codec_id, int profile)
67 {
68 if (profile == FF_PROFILE_UNKNOWN)
69 return MFX_PROFILE_UNKNOWN;
70 switch (codec_id) {
71 case AV_CODEC_ID_H264:
72 case AV_CODEC_ID_HEVC:
73 return profile;
74 case AV_CODEC_ID_VC1:
75 return 4 * profile + 1;
76 case AV_CODEC_ID_MPEG2VIDEO:
77 return 0x10 * profile;
78 }
79 return MFX_PROFILE_UNKNOWN;
80 }
81
82 static const struct {
83 mfxStatus mfxerr;
84 int averr;
85 const char *desc;
86 } qsv_errors[] = {
87 { MFX_ERR_NONE, 0, "success" },
88 { MFX_ERR_UNKNOWN, AVERROR_UNKNOWN, "unknown error" },
89 { MFX_ERR_NULL_PTR, AVERROR(EINVAL), "NULL pointer" },
90 { MFX_ERR_UNSUPPORTED, AVERROR(ENOSYS), "unsupported" },
91 { MFX_ERR_MEMORY_ALLOC, AVERROR(ENOMEM), "failed to allocate memory" },
92 { MFX_ERR_NOT_ENOUGH_BUFFER, AVERROR(ENOMEM), "insufficient input/output buffer" },
93 { MFX_ERR_INVALID_HANDLE, AVERROR(EINVAL), "invalid handle" },
94 { MFX_ERR_LOCK_MEMORY, AVERROR(EIO), "failed to lock the memory block" },
95 { MFX_ERR_NOT_INITIALIZED, AVERROR_BUG, "not initialized" },
96 { MFX_ERR_NOT_FOUND, AVERROR(ENOSYS), "specified object was not found" },
97 { MFX_ERR_MORE_DATA, AVERROR(EAGAIN), "expect more data at input" },
98 { MFX_ERR_MORE_SURFACE, AVERROR(EAGAIN), "expect more surface at output" },
99 { MFX_ERR_ABORTED, AVERROR_UNKNOWN, "operation aborted" },
100 { MFX_ERR_DEVICE_LOST, AVERROR(EIO), "device lost" },
101 { MFX_ERR_INCOMPATIBLE_VIDEO_PARAM, AVERROR(EINVAL), "incompatible video parameters" },
102 { MFX_ERR_INVALID_VIDEO_PARAM, AVERROR(EINVAL), "invalid video parameters" },
103 { MFX_ERR_UNDEFINED_BEHAVIOR, AVERROR_BUG, "undefined behavior" },
104 { MFX_ERR_DEVICE_FAILED, AVERROR(EIO), "device failed" },
105 { MFX_ERR_MORE_BITSTREAM, AVERROR(EAGAIN), "expect more bitstream at output" },
106 { MFX_ERR_INCOMPATIBLE_AUDIO_PARAM, AVERROR(EINVAL), "incompatible audio parameters" },
107 { MFX_ERR_INVALID_AUDIO_PARAM, AVERROR(EINVAL), "invalid audio parameters" },
108
109 { MFX_WRN_IN_EXECUTION, 0, "operation in execution" },
110 { MFX_WRN_DEVICE_BUSY, 0, "device busy" },
111 { MFX_WRN_VIDEO_PARAM_CHANGED, 0, "video parameters changed" },
112 { MFX_WRN_PARTIAL_ACCELERATION, 0, "partial acceleration" },
113 { MFX_WRN_INCOMPATIBLE_VIDEO_PARAM, 0, "incompatible video parameters" },
114 { MFX_WRN_VALUE_NOT_CHANGED, 0, "value is saturated" },
115 { MFX_WRN_OUT_OF_RANGE, 0, "value out of range" },
116 { MFX_WRN_FILTER_SKIPPED, 0, "filter skipped" },
117 { MFX_WRN_INCOMPATIBLE_AUDIO_PARAM, 0, "incompatible audio parameters" },
118 };
119
120 int ff_qsv_map_error(mfxStatus mfx_err, const char **desc)
121 {
122 int i;
123 for (i = 0; i < FF_ARRAY_ELEMS(qsv_errors); i++) {
124 if (qsv_errors[i].mfxerr == mfx_err) {
125 if (desc)
126 *desc = qsv_errors[i].desc;
127 return qsv_errors[i].averr;
128 }
129 }
130 if (desc)
131 *desc = "unknown error";
132 return AVERROR_UNKNOWN;
133 }
134
135 int ff_qsv_print_error(void *log_ctx, mfxStatus err,
136 const char *error_string)
137 {
138 const char *desc;
139 int ret;
140 ret = ff_qsv_map_error(err, &desc);
141 av_log(log_ctx, AV_LOG_ERROR, "%s: %s (%d)\n", error_string, desc, err);
142 return ret;
143 }
144
145 int ff_qsv_print_warning(void *log_ctx, mfxStatus err,
146 const char *warning_string)
147 {
148 const char *desc;
149 int ret;
150 ret = ff_qsv_map_error(err, &desc);
151 av_log(log_ctx, AV_LOG_WARNING, "%s: %s (%d)\n", warning_string, desc, err);
152 return ret;
153 }
154
155 static enum AVPixelFormat qsv_map_fourcc(uint32_t fourcc)
156 {
157 switch (fourcc) {
158 case MFX_FOURCC_NV12: return AV_PIX_FMT_NV12;
159 case MFX_FOURCC_P010: return AV_PIX_FMT_P010;
160 case MFX_FOURCC_P8: return AV_PIX_FMT_PAL8;
161 }
162 return AV_PIX_FMT_NONE;
163 }
164
165 int ff_qsv_map_pixfmt(enum AVPixelFormat format, uint32_t *fourcc)
166 {
167 switch (format) {
168 case AV_PIX_FMT_YUV420P:
169 case AV_PIX_FMT_YUVJ420P:
170 case AV_PIX_FMT_NV12:
171 *fourcc = MFX_FOURCC_NV12;
172 return AV_PIX_FMT_NV12;
173 case AV_PIX_FMT_YUV420P10:
174 case AV_PIX_FMT_P010:
175 *fourcc = MFX_FOURCC_P010;
176 return AV_PIX_FMT_P010;
177 default:
178 return AVERROR(ENOSYS);
179 }
180 }
181
182 int ff_qsv_find_surface_idx(QSVFramesContext *ctx, QSVFrame *frame)
183 {
184 int i;
185 for (i = 0; i < ctx->nb_mids; i++) {
186 QSVMid *mid = &ctx->mids[i];
187 if (mid->handle == frame->surface.Data.MemId)
188 return i;
189 }
190 return AVERROR_BUG;
191 }
192
193 static int qsv_load_plugins(mfxSession session, const char *load_plugins,
194 void *logctx)
195 {
196 if (!load_plugins || !*load_plugins)
197 return 0;
198
199 while (*load_plugins) {
200 mfxPluginUID uid;
201 mfxStatus ret;
202 int i, err = 0;
203
204 char *plugin = av_get_token(&load_plugins, ":");
205 if (!plugin)
206 return AVERROR(ENOMEM);
207 if (strlen(plugin) != 2 * sizeof(uid.Data)) {
208 av_log(logctx, AV_LOG_ERROR, "Invalid plugin UID length\n");
209 err = AVERROR(EINVAL);
210 goto load_plugin_fail;
211 }
212
213 for (i = 0; i < sizeof(uid.Data); i++) {
214 err = sscanf(plugin + 2 * i, "%2hhx", uid.Data + i);
215 if (err != 1) {
216 av_log(logctx, AV_LOG_ERROR, "Invalid plugin UID\n");
217 err = AVERROR(EINVAL);
218 goto load_plugin_fail;
219 }
220
221 }
222
223 ret = MFXVideoUSER_Load(session, &uid, 1);
224 if (ret < 0) {
225 char errorbuf[128];
226 snprintf(errorbuf, sizeof(errorbuf),
227 "Could not load the requested plugin '%s'", plugin);
228 err = ff_qsv_print_error(logctx, ret, errorbuf);
229 goto load_plugin_fail;
230 }
231
232 if (*load_plugins)
233 load_plugins++;
234 load_plugin_fail:
235 av_freep(&plugin);
236 if (err < 0)
237 return err;
238 }
239
240 return 0;
241
242 }
243
244 int ff_qsv_init_internal_session(AVCodecContext *avctx, mfxSession *session,
245 const char *load_plugins)
246 {
247 mfxIMPL impl = MFX_IMPL_AUTO_ANY;
248 mfxVersion ver = { { QSV_VERSION_MINOR, QSV_VERSION_MAJOR } };
249
250 const char *desc;
251 int ret;
252
253 ret = MFXInit(impl, &ver, session);
254 if (ret < 0)
255 return ff_qsv_print_error(avctx, ret,
256 "Error initializing an internal MFX session");
257
258 ret = qsv_load_plugins(*session, load_plugins, avctx);
259 if (ret < 0) {
260 av_log(avctx, AV_LOG_ERROR, "Error loading plugins\n");
261 return ret;
262 }
263
264 MFXQueryIMPL(*session, &impl);
265
266 switch (MFX_IMPL_BASETYPE(impl)) {
267 case MFX_IMPL_SOFTWARE:
268 desc = "software";
269 break;
270 case MFX_IMPL_HARDWARE:
271 case MFX_IMPL_HARDWARE2:
272 case MFX_IMPL_HARDWARE3:
273 case MFX_IMPL_HARDWARE4:
274 desc = "hardware accelerated";
275 break;
276 default:
277 desc = "unknown";
278 }
279
280 av_log(avctx, AV_LOG_VERBOSE,
281 "Initialized an internal MFX session using %s implementation\n",
282 desc);
283
284 return 0;
285 }
286
287 static void mids_buf_free(void *opaque, uint8_t *data)
288 {
289 AVBufferRef *hw_frames_ref = opaque;
290 av_buffer_unref(&hw_frames_ref);
291 av_freep(&data);
292 }
293
294 static AVBufferRef *qsv_create_mids(AVBufferRef *hw_frames_ref)
295 {
296 AVHWFramesContext *frames_ctx = (AVHWFramesContext*)hw_frames_ref->data;
297 AVQSVFramesContext *frames_hwctx = frames_ctx->hwctx;
298 int nb_surfaces = frames_hwctx->nb_surfaces;
299
300 AVBufferRef *mids_buf, *hw_frames_ref1;
301 QSVMid *mids;
302 int i;
303
304 hw_frames_ref1 = av_buffer_ref(hw_frames_ref);
305 if (!hw_frames_ref1)
306 return NULL;
307
308 mids = av_mallocz_array(nb_surfaces, sizeof(*mids));
309 if (!mids) {
310 av_buffer_unref(&hw_frames_ref1);
311 return NULL;
312 }
313
314 mids_buf = av_buffer_create((uint8_t*)mids, nb_surfaces * sizeof(*mids),
315 mids_buf_free, hw_frames_ref1, 0);
316 if (!mids_buf) {
317 av_buffer_unref(&hw_frames_ref1);
318 av_freep(&mids);
319 return NULL;
320 }
321
322 for (i = 0; i < nb_surfaces; i++) {
323 QSVMid *mid = &mids[i];
324 mid->handle = frames_hwctx->surfaces[i].Data.MemId;
325 mid->hw_frames_ref = hw_frames_ref1;
326 }
327
328 return mids_buf;
329 }
330
331 static int qsv_setup_mids(mfxFrameAllocResponse *resp, AVBufferRef *hw_frames_ref,
332 AVBufferRef *mids_buf)
333 {
334 AVHWFramesContext *frames_ctx = (AVHWFramesContext*)hw_frames_ref->data;
335 AVQSVFramesContext *frames_hwctx = frames_ctx->hwctx;
336 QSVMid *mids = (QSVMid*)mids_buf->data;
337 int nb_surfaces = frames_hwctx->nb_surfaces;
338 int i;
339
340 // the allocated size of the array is two larger than the number of
341 // surfaces, we store the references to the frames context and the
342 // QSVMid array there
343 resp->mids = av_mallocz_array(nb_surfaces + 2, sizeof(*resp->mids));
344 if (!resp->mids)
345 return AVERROR(ENOMEM);
346
347 for (i = 0; i < nb_surfaces; i++)
348 resp->mids[i] = &mids[i];
349 resp->NumFrameActual = nb_surfaces;
350
351 resp->mids[resp->NumFrameActual] = (mfxMemId)av_buffer_ref(hw_frames_ref);
352 if (!resp->mids[resp->NumFrameActual]) {
353 av_freep(&resp->mids);
354 return AVERROR(ENOMEM);
355 }
356
357 resp->mids[resp->NumFrameActual + 1] = av_buffer_ref(mids_buf);
358 if (!resp->mids[resp->NumFrameActual + 1]) {
359 av_buffer_unref((AVBufferRef**)&resp->mids[resp->NumFrameActual]);
360 av_freep(&resp->mids);
361 return AVERROR(ENOMEM);
362 }
363
364 return 0;
365 }
366
367 static mfxStatus qsv_frame_alloc(mfxHDL pthis, mfxFrameAllocRequest *req,
368 mfxFrameAllocResponse *resp)
369 {
370 QSVFramesContext *ctx = pthis;
371 int ret;
372
373 /* this should only be called from an encoder or decoder and
374 * only allocates video memory frames */
375 if (!(req->Type & (MFX_MEMTYPE_VIDEO_MEMORY_DECODER_TARGET |
376 MFX_MEMTYPE_VIDEO_MEMORY_PROCESSOR_TARGET)) ||
377 !(req->Type & (MFX_MEMTYPE_FROM_DECODE | MFX_MEMTYPE_FROM_ENCODE)))
378 return MFX_ERR_UNSUPPORTED;
379
380 if (req->Type & MFX_MEMTYPE_EXTERNAL_FRAME) {
381 /* external frames -- fill from the caller-supplied frames context */
382 AVHWFramesContext *frames_ctx = (AVHWFramesContext*)ctx->hw_frames_ctx->data;
383 AVQSVFramesContext *frames_hwctx = frames_ctx->hwctx;
384 mfxFrameInfo *i = &req->Info;
385 mfxFrameInfo *i1 = &frames_hwctx->surfaces[0].Info;
386
387 if (i->Width != i1->Width || i->Height != i1->Height ||
388 i->FourCC != i1->FourCC || i->ChromaFormat != i1->ChromaFormat) {
389 av_log(ctx->logctx, AV_LOG_ERROR, "Mismatching surface properties in an "
390 "allocation request: %dx%d %d %d vs %dx%d %d %d\n",
391 i->Width, i->Height, i->FourCC, i->ChromaFormat,
392 i1->Width, i1->Height, i1->FourCC, i1->ChromaFormat);
393 return MFX_ERR_UNSUPPORTED;
394 }
395
396 ret = qsv_setup_mids(resp, ctx->hw_frames_ctx, ctx->mids_buf);
397 if (ret < 0) {
398 av_log(ctx->logctx, AV_LOG_ERROR,
399 "Error filling an external frame allocation request\n");
400 return MFX_ERR_MEMORY_ALLOC;
401 }
402 } else if (req->Type & MFX_MEMTYPE_INTERNAL_FRAME) {
403 /* internal frames -- allocate a new hw frames context */
404 AVHWFramesContext *ext_frames_ctx = (AVHWFramesContext*)ctx->hw_frames_ctx->data;
405 mfxFrameInfo *i = &req->Info;
406
407 AVBufferRef *frames_ref, *mids_buf;
408 AVHWFramesContext *frames_ctx;
409 AVQSVFramesContext *frames_hwctx;
410
411 frames_ref = av_hwframe_ctx_alloc(ext_frames_ctx->device_ref);
412 if (!frames_ref)
413 return MFX_ERR_MEMORY_ALLOC;
414
415 frames_ctx = (AVHWFramesContext*)frames_ref->data;
416 frames_hwctx = frames_ctx->hwctx;
417
418 frames_ctx->format = AV_PIX_FMT_QSV;
419 frames_ctx->sw_format = qsv_map_fourcc(i->FourCC);
420 frames_ctx->width = i->Width;
421 frames_ctx->height = i->Height;
422 frames_ctx->initial_pool_size = req->NumFrameSuggested;
423
424 frames_hwctx->frame_type = req->Type;
425
426 ret = av_hwframe_ctx_init(frames_ref);
427 if (ret < 0) {
428 av_log(ctx->logctx, AV_LOG_ERROR,
429 "Error initializing a frames context for an internal frame "
430 "allocation request\n");
431 av_buffer_unref(&frames_ref);
432 return MFX_ERR_MEMORY_ALLOC;
433 }
434
435 mids_buf = qsv_create_mids(frames_ref);
436 if (!mids_buf) {
437 av_buffer_unref(&frames_ref);
438 return MFX_ERR_MEMORY_ALLOC;
439 }
440
441 ret = qsv_setup_mids(resp, frames_ref, mids_buf);
442 av_buffer_unref(&mids_buf);
443 av_buffer_unref(&frames_ref);
444 if (ret < 0) {
445 av_log(ctx->logctx, AV_LOG_ERROR,
446 "Error filling an internal frame allocation request\n");
447 return MFX_ERR_MEMORY_ALLOC;
448 }
449 } else {
450 return MFX_ERR_UNSUPPORTED;
451 }
452
453 return MFX_ERR_NONE;
454 }
455
456 static mfxStatus qsv_frame_free(mfxHDL pthis, mfxFrameAllocResponse *resp)
457 {
458 av_buffer_unref((AVBufferRef**)&resp->mids[resp->NumFrameActual]);
459 av_buffer_unref((AVBufferRef**)&resp->mids[resp->NumFrameActual + 1]);
460 av_freep(&resp->mids);
461 return MFX_ERR_NONE;
462 }
463
464 static mfxStatus qsv_frame_lock(mfxHDL pthis, mfxMemId mid, mfxFrameData *ptr)
465 {
466 QSVMid *qsv_mid = mid;
467 AVHWFramesContext *hw_frames_ctx = (AVHWFramesContext*)qsv_mid->hw_frames_ref->data;
468 AVQSVFramesContext *hw_frames_hwctx = hw_frames_ctx->hwctx;
469 int size;
470 int ret;
471 mfxStatus err;
472
473 if (qsv_mid->locked_frame)
474 return MFX_ERR_UNDEFINED_BEHAVIOR;
475
476 /* Allocate a system memory frame that will hold the mapped data. */
477 qsv_mid->locked_frame = av_frame_alloc();
478 if (!qsv_mid->locked_frame)
479 return MFX_ERR_MEMORY_ALLOC;
480 qsv_mid->locked_frame->format = hw_frames_ctx->sw_format;
481
482 /* wrap the provided handle in a hwaccel AVFrame */
483 qsv_mid->hw_frame = av_frame_alloc();
484 if (!qsv_mid->hw_frame)
485 goto fail;
486
487 qsv_mid->hw_frame->data[3] = (uint8_t*)&qsv_mid->surf;
488 qsv_mid->hw_frame->format = AV_PIX_FMT_QSV;
489
490 // doesn't really matter what buffer is used here
491 qsv_mid->hw_frame->buf[0] = av_buffer_alloc(1);
492 if (!qsv_mid->hw_frame->buf[0])
493 goto fail;
494
495 qsv_mid->hw_frame->width = hw_frames_ctx->width;
496 qsv_mid->hw_frame->height = hw_frames_ctx->height;
497
498 qsv_mid->hw_frame->hw_frames_ctx = av_buffer_ref(qsv_mid->hw_frames_ref);
499 if (!qsv_mid->hw_frame->hw_frames_ctx)
500 goto fail;
501
502 qsv_mid->surf.Info = hw_frames_hwctx->surfaces[0].Info;
503 qsv_mid->surf.Data.MemId = qsv_mid->handle;
504
505 /* map the data to the system memory */
506 ret = av_hwframe_map(qsv_mid->locked_frame, qsv_mid->hw_frame,
507 AV_HWFRAME_MAP_DIRECT);
508 if (ret < 0)
509 goto fail;
510
511 ptr->Pitch = qsv_mid->locked_frame->linesize[0];
512 ptr->Y = qsv_mid->locked_frame->data[0];
513 ptr->U = qsv_mid->locked_frame->data[1];
514 ptr->V = qsv_mid->locked_frame->data[1] + 1;
515
516 return MFX_ERR_NONE;
517 fail:
518 av_frame_free(&qsv_mid->hw_frame);
519 av_frame_free(&qsv_mid->locked_frame);
520 return MFX_ERR_MEMORY_ALLOC;
521 }
522
523 static mfxStatus qsv_frame_unlock(mfxHDL pthis, mfxMemId mid, mfxFrameData *ptr)
524 {
525 QSVMid *qsv_mid = mid;
526 int ret;
527
528 av_frame_free(&qsv_mid->locked_frame);
529 av_frame_free(&qsv_mid->hw_frame);
530
531 return MFX_ERR_NONE;
532 }
533
534 static mfxStatus qsv_frame_get_hdl(mfxHDL pthis, mfxMemId mid, mfxHDL *hdl)
535 {
536 QSVMid *qsv_mid = (QSVMid*)mid;
537 *hdl = qsv_mid->handle;
538 return MFX_ERR_NONE;
539 }
540
541 int ff_qsv_init_session_hwcontext(AVCodecContext *avctx, mfxSession *psession,
542 QSVFramesContext *qsv_frames_ctx,
543 const char *load_plugins, int opaque)
544 {
545 static const mfxHandleType handle_types[] = {
546 MFX_HANDLE_VA_DISPLAY,
547 MFX_HANDLE_D3D9_DEVICE_MANAGER,
548 MFX_HANDLE_D3D11_DEVICE,
549 };
550 mfxFrameAllocator frame_allocator = {
551 .pthis = qsv_frames_ctx,
552 .Alloc = qsv_frame_alloc,
553 .Lock = qsv_frame_lock,
554 .Unlock = qsv_frame_unlock,
555 .GetHDL = qsv_frame_get_hdl,
556 .Free = qsv_frame_free,
557 };
558
559 AVHWFramesContext *frames_ctx = (AVHWFramesContext*)qsv_frames_ctx->hw_frames_ctx->data;
560 AVQSVFramesContext *frames_hwctx = frames_ctx->hwctx;
561 AVQSVDeviceContext *device_hwctx = frames_ctx->device_ctx->hwctx;
562 mfxSession parent_session = device_hwctx->session;
563
564 mfxSession session;
565 mfxVersion ver;
566 mfxIMPL impl;
567 mfxHDL handle = NULL;
568 mfxHandleType handle_type;
569 mfxStatus err;
570
571 int i, ret;
572
573 err = MFXQueryIMPL(parent_session, &impl);
574 if (err == MFX_ERR_NONE)
575 err = MFXQueryVersion(parent_session, &ver);
576 if (err != MFX_ERR_NONE)
577 return ff_qsv_print_error(avctx, err,
578 "Error querying the session attributes");
579
580 for (i = 0; i < FF_ARRAY_ELEMS(handle_types); i++) {
581 err = MFXVideoCORE_GetHandle(parent_session, handle_types[i], &handle);
582 if (err == MFX_ERR_NONE) {
583 handle_type = handle_types[i];
584 break;
585 }
586 handle = NULL;
587 }
588 if (!handle) {
589 av_log(avctx, AV_LOG_VERBOSE, "No supported hw handle could be retrieved "
590 "from the session\n");
591 }
592
593 err = MFXInit(impl, &ver, &session);
594 if (err != MFX_ERR_NONE)
595 return ff_qsv_print_error(avctx, err,
596 "Error initializing a child MFX session");
597
598 if (handle) {
599 err = MFXVideoCORE_SetHandle(session, handle_type, handle);
600 if (err != MFX_ERR_NONE)
601 return ff_qsv_print_error(avctx, err,
602 "Error setting a HW handle");
603 }
604
605 ret = qsv_load_plugins(session, load_plugins, avctx);
606 if (ret < 0) {
607 av_log(avctx, AV_LOG_ERROR, "Error loading plugins\n");
608 return ret;
609 }
610
611 if (!opaque) {
612 qsv_frames_ctx->logctx = avctx;
613
614 /* allocate the memory ids for the external frames */
615 av_buffer_unref(&qsv_frames_ctx->mids_buf);
616 qsv_frames_ctx->mids_buf = qsv_create_mids(qsv_frames_ctx->hw_frames_ctx);
617 if (!qsv_frames_ctx->mids_buf)
618 return AVERROR(ENOMEM);
619 qsv_frames_ctx->mids = (QSVMid*)qsv_frames_ctx->mids_buf->data;
620 qsv_frames_ctx->nb_mids = frames_hwctx->nb_surfaces;
621
622 err = MFXVideoCORE_SetFrameAllocator(session, &frame_allocator);
623 if (err != MFX_ERR_NONE)
624 return ff_qsv_print_error(avctx, err,
625 "Error setting a frame allocator");
626 }
627
628 *psession = session;
629 return 0;
630 }