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 Libav.
9 * Libav 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 * Libav 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 Libav; 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"
41 #include "qsv_internal.h"
44 static int qsv_init_session(AVCodecContext *avctx, QSVContext *q, mfxSession session,
45 AVBufferRef *hw_frames_ref)
51 } else if (hw_frames_ref) {
52 if (q->internal_session) {
53 MFXClose(q->internal_session);
54 q->internal_session = NULL;
56 av_buffer_unref(&q->frames_ctx.hw_frames_ctx);
58 q->frames_ctx.hw_frames_ctx = av_buffer_ref(hw_frames_ref);
59 if (!q->frames_ctx.hw_frames_ctx)
60 return AVERROR(ENOMEM);
62 ret = ff_qsv_init_session_hwcontext(avctx, &q->internal_session,
63 &q->frames_ctx, q->load_plugins,
64 q->iopattern == MFX_IOPATTERN_OUT_OPAQUE_MEMORY);
66 av_buffer_unref(&q->frames_ctx.hw_frames_ctx);
70 q->session = q->internal_session;
72 if (!q->internal_session) {
73 ret = ff_qsv_init_internal_session(avctx, &q->internal_session,
79 q->session = q->internal_session;
82 /* make sure the decoder is uninitialized */
83 MFXVideoDECODE_Close(q->session);
88 static int qsv_decode_init(AVCodecContext *avctx, QSVContext *q)
90 const AVPixFmtDescriptor *desc;
91 mfxSession session = NULL;
93 mfxVideoParam param = { { 0 } };
94 int frame_width = avctx->coded_width;
95 int frame_height = avctx->coded_height;
98 desc = av_pix_fmt_desc_get(avctx->sw_pix_fmt);
102 if (!q->async_fifo) {
103 q->async_fifo = av_fifo_alloc((1 + q->async_depth) *
104 (sizeof(mfxSyncPoint*) + sizeof(QSVFrame*)));
106 return AVERROR(ENOMEM);
109 if (avctx->pix_fmt == AV_PIX_FMT_QSV && avctx->hwaccel_context) {
110 AVQSVContext *user_ctx = avctx->hwaccel_context;
111 session = user_ctx->session;
112 iopattern = user_ctx->iopattern;
113 q->ext_buffers = user_ctx->ext_buffers;
114 q->nb_ext_buffers = user_ctx->nb_ext_buffers;
117 if (avctx->hw_frames_ctx) {
118 AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
119 AVQSVFramesContext *frames_hwctx = frames_ctx->hwctx;
122 if (frames_hwctx->frame_type & MFX_MEMTYPE_OPAQUE_FRAME)
123 iopattern = MFX_IOPATTERN_OUT_OPAQUE_MEMORY;
124 else if (frames_hwctx->frame_type & MFX_MEMTYPE_VIDEO_MEMORY_DECODER_TARGET)
125 iopattern = MFX_IOPATTERN_OUT_VIDEO_MEMORY;
128 frame_width = frames_hwctx->surfaces[0].Info.Width;
129 frame_height = frames_hwctx->surfaces[0].Info.Height;
133 iopattern = MFX_IOPATTERN_OUT_SYSTEM_MEMORY;
134 q->iopattern = iopattern;
136 ret = qsv_init_session(avctx, q, session, avctx->hw_frames_ctx);
138 av_log(avctx, AV_LOG_ERROR, "Error initializing an MFX session\n");
142 ret = ff_qsv_codec_id_to_mfx(avctx->codec_id);
146 param.mfx.CodecId = ret;
147 param.mfx.CodecProfile = avctx->profile;
148 param.mfx.CodecLevel = avctx->level;
150 param.mfx.FrameInfo.BitDepthLuma = desc->comp[0].depth;
151 param.mfx.FrameInfo.BitDepthChroma = desc->comp[0].depth;
152 param.mfx.FrameInfo.Shift = desc->comp[0].depth > 8;
153 param.mfx.FrameInfo.FourCC = q->fourcc;
154 param.mfx.FrameInfo.Width = frame_width;
155 param.mfx.FrameInfo.Height = frame_height;
156 param.mfx.FrameInfo.ChromaFormat = MFX_CHROMAFORMAT_YUV420;
158 param.IOPattern = q->iopattern;
159 param.AsyncDepth = q->async_depth;
160 param.ExtParam = q->ext_buffers;
161 param.NumExtParam = q->nb_ext_buffers;
163 ret = MFXVideoDECODE_Init(q->session, ¶m);
165 return ff_qsv_print_error(avctx, ret,
166 "Error initializing the MFX video decoder");
168 q->frame_info = param.mfx.FrameInfo;
173 static int alloc_frame(AVCodecContext *avctx, QSVContext *q, QSVFrame *frame)
177 ret = ff_get_buffer(avctx, frame->frame, AV_GET_BUFFER_FLAG_REF);
181 if (frame->frame->format == AV_PIX_FMT_QSV) {
182 frame->surface = (mfxFrameSurface1*)frame->frame->data[3];
184 frame->surface_internal.Info = q->frame_info;
186 frame->surface_internal.Data.PitchLow = frame->frame->linesize[0];
187 frame->surface_internal.Data.Y = frame->frame->data[0];
188 frame->surface_internal.Data.UV = frame->frame->data[1];
190 frame->surface = &frame->surface_internal;
196 static void qsv_clear_unused_frames(QSVContext *q)
198 QSVFrame *cur = q->work_frames;
200 if (cur->surface && !cur->surface->Data.Locked && !cur->queued) {
202 av_frame_unref(cur->frame);
208 static int get_surface(AVCodecContext *avctx, QSVContext *q, mfxFrameSurface1 **surf)
210 QSVFrame *frame, **last;
213 qsv_clear_unused_frames(q);
215 frame = q->work_frames;
216 last = &q->work_frames;
218 if (!frame->surface) {
219 ret = alloc_frame(avctx, q, frame);
222 *surf = frame->surface;
230 frame = av_mallocz(sizeof(*frame));
232 return AVERROR(ENOMEM);
233 frame->frame = av_frame_alloc();
236 return AVERROR(ENOMEM);
240 ret = alloc_frame(avctx, q, frame);
244 *surf = frame->surface;
249 static QSVFrame *find_frame(QSVContext *q, mfxFrameSurface1 *surf)
251 QSVFrame *cur = q->work_frames;
253 if (surf == cur->surface)
260 static int qsv_decode(AVCodecContext *avctx, QSVContext *q,
261 AVFrame *frame, int *got_frame,
265 mfxFrameSurface1 *insurf;
266 mfxFrameSurface1 *outsurf;
268 mfxBitstream bs = { { { 0 } } };
272 bs.Data = avpkt->data;
273 bs.DataLength = avpkt->size;
274 bs.MaxLength = bs.DataLength;
275 bs.TimeStamp = avpkt->pts;
278 sync = av_mallocz(sizeof(*sync));
281 return AVERROR(ENOMEM);
285 ret = get_surface(avctx, q, &insurf);
289 ret = MFXVideoDECODE_DecodeFrameAsync(q->session, avpkt->size ? &bs : NULL,
290 insurf, &outsurf, sync);
291 if (ret == MFX_WRN_DEVICE_BUSY)
294 } while (ret == MFX_WRN_DEVICE_BUSY || ret == MFX_ERR_MORE_SURFACE);
296 if (ret != MFX_ERR_NONE &&
297 ret != MFX_ERR_MORE_DATA &&
298 ret != MFX_WRN_VIDEO_PARAM_CHANGED &&
299 ret != MFX_ERR_MORE_SURFACE) {
301 return ff_qsv_print_error(avctx, ret,
302 "Error during QSV decoding.");
305 /* make sure we do not enter an infinite loop if the SDK
306 * did not consume any data and did not return anything */
307 if (!*sync && !bs.DataOffset) {
308 av_log(avctx, AV_LOG_WARNING, "A decode call did not consume any data\n");
309 bs.DataOffset = avpkt->size;
313 QSVFrame *out_frame = find_frame(q, outsurf);
316 av_log(avctx, AV_LOG_ERROR,
317 "The returned surface does not correspond to any frame\n");
322 out_frame->queued = 1;
323 av_fifo_generic_write(q->async_fifo, &out_frame, sizeof(out_frame), NULL);
324 av_fifo_generic_write(q->async_fifo, &sync, sizeof(sync), NULL);
329 if (!av_fifo_space(q->async_fifo) ||
330 (!avpkt->size && av_fifo_size(q->async_fifo))) {
333 av_fifo_generic_read(q->async_fifo, &out_frame, sizeof(out_frame), NULL);
334 av_fifo_generic_read(q->async_fifo, &sync, sizeof(sync), NULL);
335 out_frame->queued = 0;
338 ret = MFXVideoCORE_SyncOperation(q->session, *sync, 1000);
339 } while (ret == MFX_WRN_IN_EXECUTION);
343 src_frame = out_frame->frame;
345 ret = av_frame_ref(frame, src_frame);
349 outsurf = out_frame->surface;
352 FF_DISABLE_DEPRECATION_WARNINGS
353 frame->pkt_pts = outsurf->Data.TimeStamp;
354 FF_ENABLE_DEPRECATION_WARNINGS
356 frame->pts = outsurf->Data.TimeStamp;
359 outsurf->Info.PicStruct & MFX_PICSTRUCT_FRAME_TRIPLING ? 4 :
360 outsurf->Info.PicStruct & MFX_PICSTRUCT_FRAME_DOUBLING ? 2 :
361 outsurf->Info.PicStruct & MFX_PICSTRUCT_FIELD_REPEATED ? 1 : 0;
362 frame->top_field_first =
363 outsurf->Info.PicStruct & MFX_PICSTRUCT_FIELD_TFF;
364 frame->interlaced_frame =
365 !(outsurf->Info.PicStruct & MFX_PICSTRUCT_PROGRESSIVE);
370 return bs.DataOffset;
373 int ff_qsv_decode_close(QSVContext *q)
375 QSVFrame *cur = q->work_frames;
378 MFXVideoDECODE_Close(q->session);
380 while (q->async_fifo && av_fifo_size(q->async_fifo)) {
384 av_fifo_generic_read(q->async_fifo, &out_frame, sizeof(out_frame), NULL);
385 av_fifo_generic_read(q->async_fifo, &sync, sizeof(sync), NULL);
391 q->work_frames = cur->next;
392 av_frame_free(&cur->frame);
394 cur = q->work_frames;
397 av_fifo_free(q->async_fifo);
398 q->async_fifo = NULL;
400 av_parser_close(q->parser);
401 avcodec_free_context(&q->avctx_internal);
403 if (q->internal_session)
404 MFXClose(q->internal_session);
406 av_buffer_unref(&q->frames_ctx.hw_frames_ctx);
407 av_freep(&q->frames_ctx.mids);
408 q->frames_ctx.nb_mids = 0;
413 int ff_qsv_process_data(AVCodecContext *avctx, QSVContext *q,
414 AVFrame *frame, int *got_frame, AVPacket *pkt)
420 if (!q->avctx_internal) {
421 q->avctx_internal = avcodec_alloc_context3(NULL);
422 if (!q->avctx_internal)
423 return AVERROR(ENOMEM);
425 if (avctx->extradata) {
426 q->avctx_internal->extradata = av_mallocz(avctx->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
427 if (!q->avctx_internal->extradata)
428 return AVERROR(ENOMEM);
430 memcpy(q->avctx_internal->extradata, avctx->extradata,
431 avctx->extradata_size);
432 q->avctx_internal->extradata_size = avctx->extradata_size;
435 q->parser = av_parser_init(avctx->codec_id);
437 return AVERROR(ENOMEM);
439 q->parser->flags |= PARSER_FLAG_COMPLETE_FRAMES;
440 q->orig_pix_fmt = AV_PIX_FMT_NONE;
444 return qsv_decode(avctx, q, frame, got_frame, pkt);
446 /* we assume the packets are already split properly and want
447 * just the codec parameters here */
448 av_parser_parse2(q->parser, q->avctx_internal,
449 &dummy_data, &dummy_size,
450 pkt->data, pkt->size, pkt->pts, pkt->dts,
453 /* TODO: flush delayed frames on reinit */
454 if (q->parser->format != q->orig_pix_fmt ||
455 q->parser->coded_width != avctx->coded_width ||
456 q->parser->coded_height != avctx->coded_height) {
457 enum AVPixelFormat pix_fmts[3] = { AV_PIX_FMT_QSV,
460 enum AVPixelFormat qsv_format;
462 qsv_format = ff_qsv_map_pixfmt(q->parser->format, &q->fourcc);
463 if (qsv_format < 0) {
464 av_log(avctx, AV_LOG_ERROR,
465 "Decoding pixel format '%s' is not supported\n",
466 av_get_pix_fmt_name(q->parser->format));
467 ret = AVERROR(ENOSYS);
471 q->orig_pix_fmt = q->parser->format;
472 avctx->pix_fmt = pix_fmts[1] = qsv_format;
473 avctx->width = q->parser->width;
474 avctx->height = q->parser->height;
475 avctx->coded_width = q->parser->coded_width;
476 avctx->coded_height = q->parser->coded_height;
477 avctx->level = q->avctx_internal->level;
478 avctx->profile = q->avctx_internal->profile;
480 ret = ff_get_format(avctx, pix_fmts);
484 avctx->pix_fmt = ret;
486 ret = qsv_decode_init(avctx, q);
491 return qsv_decode(avctx, q, frame, got_frame, pkt);
494 q->orig_pix_fmt = q->parser->format = avctx->pix_fmt = AV_PIX_FMT_NONE;
498 void ff_qsv_decode_flush(AVCodecContext *avctx, QSVContext *q)
500 q->orig_pix_fmt = AV_PIX_FMT_NONE;