2 * Intel MediaSDK QSV codec-independent code
4 * copyright (c) 2013 Luca Barbato
5 * copyright (c) 2015 Anton Khirnov <anton@khirnov.net>
7 * This file is part of FFmpeg.
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.
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.
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
25 #include <sys/types.h>
27 #include <mfx/mfxvideo.h>
29 #include "libavutil/common.h"
30 #include "libavutil/hwcontext.h"
31 #include "libavutil/hwcontext_qsv.h"
32 #include "libavutil/mem.h"
33 #include "libavutil/log.h"
34 #include "libavutil/pixdesc.h"
35 #include "libavutil/pixfmt.h"
36 #include "libavutil/time.h"
37 #include "libavutil/imgutils.h"
43 #include "qsv_internal.h"
46 const AVCodecHWConfigInternal *ff_qsv_hw_configs[] = {
47 &(const AVCodecHWConfigInternal) {
49 .pix_fmt = AV_PIX_FMT_QSV,
50 .methods = AV_CODEC_HW_CONFIG_METHOD_HW_FRAMES_CTX |
51 AV_CODEC_HW_CONFIG_METHOD_AD_HOC,
52 .device_type = AV_HWDEVICE_TYPE_QSV,
59 static int ff_qsv_get_continuous_buffer(AVCodecContext *avctx, AVFrame *frame, AVBufferPool *pool)
63 ff_decode_frame_props(avctx, frame);
65 frame->width = avctx->width;
66 frame->height = avctx->height;
68 switch (avctx->pix_fmt) {
70 frame->linesize[0] = FFALIGN(avctx->width, 128);
73 frame->linesize[0] = 2 * FFALIGN(avctx->width, 128);
76 av_log(avctx, AV_LOG_ERROR, "Unsupported pixel format.\n");
77 return AVERROR(EINVAL);
80 frame->linesize[1] = frame->linesize[0];
81 frame->buf[0] = av_buffer_pool_get(pool);
83 return AVERROR(ENOMEM);
85 frame->data[0] = frame->buf[0]->data;
86 frame->data[1] = frame->data[0] +
87 frame->linesize[0] * FFALIGN(avctx->height, 64);
89 ret = ff_attach_decode_data(frame);
96 static int qsv_init_session(AVCodecContext *avctx, QSVContext *q, mfxSession session,
97 AVBufferRef *hw_frames_ref, AVBufferRef *hw_device_ref)
101 if (q->gpu_copy == MFX_GPUCOPY_ON &&
102 !(q->iopattern & MFX_IOPATTERN_OUT_SYSTEM_MEMORY))
103 av_log(avctx, AV_LOG_WARNING, "GPU-accelerated memory copy "
104 "only works in MFX_IOPATTERN_OUT_SYSTEM_MEMORY.\n");
106 q->session = session;
107 } else if (hw_frames_ref) {
108 if (q->internal_qs.session) {
109 MFXClose(q->internal_qs.session);
110 q->internal_qs.session = NULL;
112 av_buffer_unref(&q->frames_ctx.hw_frames_ctx);
114 q->frames_ctx.hw_frames_ctx = av_buffer_ref(hw_frames_ref);
115 if (!q->frames_ctx.hw_frames_ctx)
116 return AVERROR(ENOMEM);
118 ret = ff_qsv_init_session_frames(avctx, &q->internal_qs.session,
119 &q->frames_ctx, q->load_plugins,
120 q->iopattern == MFX_IOPATTERN_OUT_OPAQUE_MEMORY,
123 av_buffer_unref(&q->frames_ctx.hw_frames_ctx);
127 q->session = q->internal_qs.session;
128 } else if (hw_device_ref) {
129 if (q->internal_qs.session) {
130 MFXClose(q->internal_qs.session);
131 q->internal_qs.session = NULL;
134 ret = ff_qsv_init_session_device(avctx, &q->internal_qs.session,
135 hw_device_ref, q->load_plugins, q->gpu_copy);
139 q->session = q->internal_qs.session;
141 if (!q->internal_qs.session) {
142 ret = ff_qsv_init_internal_session(avctx, &q->internal_qs,
143 q->load_plugins, q->gpu_copy);
148 q->session = q->internal_qs.session;
151 /* make sure the decoder is uninitialized */
152 MFXVideoDECODE_Close(q->session);
157 static inline unsigned int qsv_fifo_item_size(void)
159 return sizeof(mfxSyncPoint*) + sizeof(QSVFrame*);
162 static inline unsigned int qsv_fifo_size(const AVFifoBuffer* fifo)
164 return av_fifo_size(fifo) / qsv_fifo_item_size();
167 static int qsv_decode_preinit(AVCodecContext *avctx, QSVContext *q, enum AVPixelFormat pix_fmt, mfxVideoParam *param)
169 mfxSession session = NULL;
172 enum AVPixelFormat pix_fmts[3] = {
173 AV_PIX_FMT_QSV, /* opaque format in case of video memory output */
174 pix_fmt, /* system memory format obtained from bitstream parser */
177 ret = ff_get_format(avctx, pix_fmts);
179 q->orig_pix_fmt = avctx->pix_fmt = AV_PIX_FMT_NONE;
183 if (!q->async_fifo) {
184 q->async_fifo = av_fifo_alloc(q->async_depth * qsv_fifo_item_size());
186 return AVERROR(ENOMEM);
189 if (avctx->pix_fmt == AV_PIX_FMT_QSV && avctx->hwaccel_context) {
190 AVQSVContext *user_ctx = avctx->hwaccel_context;
191 session = user_ctx->session;
192 iopattern = user_ctx->iopattern;
193 q->ext_buffers = user_ctx->ext_buffers;
194 q->nb_ext_buffers = user_ctx->nb_ext_buffers;
197 if (avctx->hw_frames_ctx) {
198 AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
199 AVQSVFramesContext *frames_hwctx = frames_ctx->hwctx;
202 if (frames_hwctx->frame_type & MFX_MEMTYPE_OPAQUE_FRAME)
203 iopattern = MFX_IOPATTERN_OUT_OPAQUE_MEMORY;
204 else if (frames_hwctx->frame_type & MFX_MEMTYPE_VIDEO_MEMORY_DECODER_TARGET)
205 iopattern = MFX_IOPATTERN_OUT_VIDEO_MEMORY;
210 iopattern = MFX_IOPATTERN_OUT_SYSTEM_MEMORY;
211 q->iopattern = iopattern;
213 ff_qsv_print_iopattern(avctx, q->iopattern, "Decoder");
215 ret = qsv_init_session(avctx, q, session, avctx->hw_frames_ctx, avctx->hw_device_ctx);
217 av_log(avctx, AV_LOG_ERROR, "Error initializing an MFX session\n");
221 param->IOPattern = q->iopattern;
222 param->AsyncDepth = q->async_depth;
223 param->ExtParam = q->ext_buffers;
224 param->NumExtParam = q->nb_ext_buffers;
229 static int qsv_decode_init(AVCodecContext *avctx, QSVContext *q, mfxVideoParam *param)
233 avctx->width = param->mfx.FrameInfo.CropW;
234 avctx->height = param->mfx.FrameInfo.CropH;
235 avctx->coded_width = param->mfx.FrameInfo.Width;
236 avctx->coded_height = param->mfx.FrameInfo.Height;
237 avctx->level = param->mfx.CodecLevel;
238 avctx->profile = param->mfx.CodecProfile;
239 avctx->field_order = ff_qsv_map_picstruct(param->mfx.FrameInfo.PicStruct);
240 avctx->pix_fmt = ff_qsv_map_fourcc(param->mfx.FrameInfo.FourCC);
242 ret = MFXVideoDECODE_Init(q->session, param);
244 return ff_qsv_print_error(avctx, ret,
245 "Error initializing the MFX video decoder");
247 q->frame_info = param->mfx.FrameInfo;
249 if (!avctx->hw_frames_ctx)
250 q->pool = av_buffer_pool_init(av_image_get_buffer_size(avctx->pix_fmt,
251 FFALIGN(avctx->width, 128), FFALIGN(avctx->height, 64), 1), av_buffer_allocz);
255 static int qsv_decode_header(AVCodecContext *avctx, QSVContext *q, AVPacket *avpkt, enum AVPixelFormat pix_fmt, mfxVideoParam *param)
259 mfxBitstream bs = { 0 };
262 bs.Data = avpkt->data;
263 bs.DataLength = avpkt->size;
264 bs.MaxLength = bs.DataLength;
265 bs.TimeStamp = avpkt->pts;
266 if (avctx->field_order == AV_FIELD_PROGRESSIVE)
267 bs.DataFlag |= MFX_BITSTREAM_COMPLETE_FRAME;
269 return AVERROR_INVALIDDATA;
273 ret = qsv_decode_preinit(avctx, q, pix_fmt, param);
278 ret = ff_qsv_codec_id_to_mfx(avctx->codec_id);
282 param->mfx.CodecId = ret;
283 ret = MFXVideoDECODE_DecodeHeader(q->session, &bs, param);
284 if (MFX_ERR_MORE_DATA == ret) {
285 return AVERROR(EAGAIN);
288 return ff_qsv_print_error(avctx, ret,
289 "Error decoding stream header");
294 static int alloc_frame(AVCodecContext *avctx, QSVContext *q, QSVFrame *frame)
299 ret = ff_qsv_get_continuous_buffer(avctx, frame->frame, q->pool);
301 ret = ff_get_buffer(avctx, frame->frame, AV_GET_BUFFER_FLAG_REF);
306 if (frame->frame->format == AV_PIX_FMT_QSV) {
307 frame->surface = *(mfxFrameSurface1*)frame->frame->data[3];
309 frame->surface.Info = q->frame_info;
311 frame->surface.Data.PitchLow = frame->frame->linesize[0];
312 frame->surface.Data.Y = frame->frame->data[0];
313 frame->surface.Data.UV = frame->frame->data[1];
316 if (q->frames_ctx.mids) {
317 ret = ff_qsv_find_surface_idx(&q->frames_ctx, frame);
321 frame->surface.Data.MemId = &q->frames_ctx.mids[ret];
323 frame->surface.Data.ExtParam = &frame->ext_param;
324 frame->surface.Data.NumExtParam = 1;
325 frame->ext_param = (mfxExtBuffer*)&frame->dec_info;
326 frame->dec_info.Header.BufferId = MFX_EXTBUFF_DECODED_FRAME_INFO;
327 frame->dec_info.Header.BufferSz = sizeof(frame->dec_info);
334 static void qsv_clear_unused_frames(QSVContext *q)
336 QSVFrame *cur = q->work_frames;
338 if (cur->used && !cur->surface.Data.Locked && !cur->queued) {
340 av_frame_unref(cur->frame);
346 static int get_surface(AVCodecContext *avctx, QSVContext *q, mfxFrameSurface1 **surf)
348 QSVFrame *frame, **last;
351 qsv_clear_unused_frames(q);
353 frame = q->work_frames;
354 last = &q->work_frames;
357 ret = alloc_frame(avctx, q, frame);
360 *surf = &frame->surface;
368 frame = av_mallocz(sizeof(*frame));
370 return AVERROR(ENOMEM);
371 frame->frame = av_frame_alloc();
374 return AVERROR(ENOMEM);
378 ret = alloc_frame(avctx, q, frame);
382 *surf = &frame->surface;
387 static QSVFrame *find_frame(QSVContext *q, mfxFrameSurface1 *surf)
389 QSVFrame *cur = q->work_frames;
391 if (surf == &cur->surface)
398 static int qsv_decode(AVCodecContext *avctx, QSVContext *q,
399 AVFrame *frame, int *got_frame,
403 mfxFrameSurface1 *insurf;
404 mfxFrameSurface1 *outsurf;
406 mfxBitstream bs = { { { 0 } } };
410 bs.Data = avpkt->data;
411 bs.DataLength = avpkt->size;
412 bs.MaxLength = bs.DataLength;
413 bs.TimeStamp = avpkt->pts;
414 if (avctx->field_order == AV_FIELD_PROGRESSIVE)
415 bs.DataFlag |= MFX_BITSTREAM_COMPLETE_FRAME;
418 sync = av_mallocz(sizeof(*sync));
421 return AVERROR(ENOMEM);
425 ret = get_surface(avctx, q, &insurf);
431 ret = MFXVideoDECODE_DecodeFrameAsync(q->session, avpkt->size ? &bs : NULL,
432 insurf, &outsurf, sync);
433 if (ret == MFX_WRN_DEVICE_BUSY)
436 } while (ret == MFX_WRN_DEVICE_BUSY || ret == MFX_ERR_MORE_SURFACE);
438 if (ret != MFX_ERR_NONE &&
439 ret != MFX_ERR_MORE_DATA &&
440 ret != MFX_WRN_VIDEO_PARAM_CHANGED &&
441 ret != MFX_ERR_MORE_SURFACE) {
443 return ff_qsv_print_error(avctx, ret,
444 "Error during QSV decoding.");
447 /* make sure we do not enter an infinite loop if the SDK
448 * did not consume any data and did not return anything */
449 if (!*sync && !bs.DataOffset) {
450 bs.DataOffset = avpkt->size;
451 ++q->zero_consume_run;
452 if (q->zero_consume_run > 1)
453 ff_qsv_print_warning(avctx, ret, "A decode call did not consume any data");
454 } else if (!*sync && bs.DataOffset) {
457 q->zero_consume_run = 0;
461 QSVFrame *out_frame = find_frame(q, outsurf);
464 av_log(avctx, AV_LOG_ERROR,
465 "The returned surface does not correspond to any frame\n");
470 out_frame->queued = 1;
471 av_fifo_generic_write(q->async_fifo, &out_frame, sizeof(out_frame), NULL);
472 av_fifo_generic_write(q->async_fifo, &sync, sizeof(sync), NULL);
477 if ((qsv_fifo_size(q->async_fifo) >= q->async_depth) ||
478 (!avpkt->size && av_fifo_size(q->async_fifo))) {
481 av_fifo_generic_read(q->async_fifo, &out_frame, sizeof(out_frame), NULL);
482 av_fifo_generic_read(q->async_fifo, &sync, sizeof(sync), NULL);
483 out_frame->queued = 0;
485 if (avctx->pix_fmt != AV_PIX_FMT_QSV) {
487 ret = MFXVideoCORE_SyncOperation(q->session, *sync, 1000);
488 } while (ret == MFX_WRN_IN_EXECUTION);
493 src_frame = out_frame->frame;
495 ret = av_frame_ref(frame, src_frame);
499 outsurf = &out_frame->surface;
502 FF_DISABLE_DEPRECATION_WARNINGS
503 frame->pkt_pts = outsurf->Data.TimeStamp;
504 FF_ENABLE_DEPRECATION_WARNINGS
506 frame->pts = outsurf->Data.TimeStamp;
509 outsurf->Info.PicStruct & MFX_PICSTRUCT_FRAME_TRIPLING ? 4 :
510 outsurf->Info.PicStruct & MFX_PICSTRUCT_FRAME_DOUBLING ? 2 :
511 outsurf->Info.PicStruct & MFX_PICSTRUCT_FIELD_REPEATED ? 1 : 0;
512 frame->top_field_first =
513 outsurf->Info.PicStruct & MFX_PICSTRUCT_FIELD_TFF;
514 frame->interlaced_frame =
515 !(outsurf->Info.PicStruct & MFX_PICSTRUCT_PROGRESSIVE);
516 frame->pict_type = ff_qsv_map_pictype(out_frame->dec_info.FrameType);
517 //Key frame is IDR frame is only suitable for H264. For HEVC, IRAPs are key frames.
518 if (avctx->codec_id == AV_CODEC_ID_H264)
519 frame->key_frame = !!(out_frame->dec_info.FrameType & MFX_FRAMETYPE_IDR);
521 /* update the surface properties */
522 if (avctx->pix_fmt == AV_PIX_FMT_QSV)
523 ((mfxFrameSurface1*)frame->data[3])->Info = outsurf->Info;
528 return bs.DataOffset;
531 int ff_qsv_decode_close(QSVContext *q)
533 QSVFrame *cur = q->work_frames;
536 MFXVideoDECODE_Close(q->session);
538 while (q->async_fifo && av_fifo_size(q->async_fifo)) {
542 av_fifo_generic_read(q->async_fifo, &out_frame, sizeof(out_frame), NULL);
543 av_fifo_generic_read(q->async_fifo, &sync, sizeof(sync), NULL);
549 q->work_frames = cur->next;
550 av_frame_free(&cur->frame);
552 cur = q->work_frames;
555 av_fifo_free(q->async_fifo);
556 q->async_fifo = NULL;
558 ff_qsv_close_internal_session(&q->internal_qs);
560 av_buffer_unref(&q->frames_ctx.hw_frames_ctx);
561 av_buffer_unref(&q->frames_ctx.mids_buf);
562 av_buffer_pool_uninit(&q->pool);
567 int ff_qsv_process_data(AVCodecContext *avctx, QSVContext *q,
568 AVFrame *frame, int *got_frame, AVPacket *pkt)
571 mfxVideoParam param = { 0 };
572 enum AVPixelFormat pix_fmt = AV_PIX_FMT_NV12;
575 return qsv_decode(avctx, q, frame, got_frame, pkt);
577 /* TODO: flush delayed frames on reinit */
579 // sw_pix_fmt, coded_width/height should be set for ff_get_format(),
580 // assume sw_pix_fmt is NV12 and coded_width/height to be 1280x720,
581 // the assumption may be not corret but will be updated after header decoded if not true.
582 if (q->orig_pix_fmt != AV_PIX_FMT_NONE)
583 pix_fmt = q->orig_pix_fmt;
584 if (!avctx->coded_width)
585 avctx->coded_width = 1280;
586 if (!avctx->coded_height)
587 avctx->coded_height = 720;
589 ret = qsv_decode_header(avctx, q, pkt, pix_fmt, ¶m);
591 if (ret >= 0 && (q->orig_pix_fmt != ff_qsv_map_fourcc(param.mfx.FrameInfo.FourCC) ||
592 avctx->coded_width != param.mfx.FrameInfo.Width ||
593 avctx->coded_height != param.mfx.FrameInfo.Height)) {
594 AVPacket zero_pkt = {0};
596 if (q->buffered_count) {
598 /* decode zero-size pkt to flush the buffered pkt before reinit */
600 return qsv_decode(avctx, q, frame, got_frame, &zero_pkt);
604 q->orig_pix_fmt = avctx->pix_fmt = pix_fmt = ff_qsv_map_fourcc(param.mfx.FrameInfo.FourCC);
606 avctx->coded_width = param.mfx.FrameInfo.Width;
607 avctx->coded_height = param.mfx.FrameInfo.Height;
609 ret = qsv_decode_preinit(avctx, q, pix_fmt, ¶m);
615 if (!q->initialized) {
616 ret = qsv_decode_init(avctx, q, ¶m);
622 return qsv_decode(avctx, q, frame, got_frame, pkt);
625 q->orig_pix_fmt = avctx->pix_fmt = AV_PIX_FMT_NONE;
629 void ff_qsv_decode_flush(AVCodecContext *avctx, QSVContext *q)
631 q->orig_pix_fmt = AV_PIX_FMT_NONE;