2 * Intel MediaSDK QSV based MPEG-2, VC-1, VP8, MJPEG and VP9 decoders
4 * copyright (c) 2015 Anton Khirnov
6 * This file is part of FFmpeg.
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
27 #include <mfx/mfxvideo.h>
29 #include "libavutil/common.h"
30 #include "libavutil/fifo.h"
31 #include "libavutil/opt.h"
35 #include "qsv_internal.h"
39 typedef struct QSVOtherContext {
43 AVFifoBuffer *packet_fifo;
48 static void qsv_clear_buffers(QSVOtherContext *s)
51 while (av_fifo_size(s->packet_fifo) >= sizeof(pkt)) {
52 av_fifo_generic_read(s->packet_fifo, &pkt, sizeof(pkt), NULL);
53 av_packet_unref(&pkt);
56 av_packet_unref(&s->input_ref);
59 static av_cold int qsv_decode_close(AVCodecContext *avctx)
61 QSVOtherContext *s = avctx->priv_data;
63 #if CONFIG_VP8_QSV_DECODER || CONFIG_VP9_QSV_DECODER
64 if (avctx->codec_id == AV_CODEC_ID_VP8 || avctx->codec_id == AV_CODEC_ID_VP9)
65 av_freep(&s->qsv.load_plugins);
68 ff_qsv_decode_close(&s->qsv);
72 av_fifo_free(s->packet_fifo);
77 static av_cold int qsv_decode_init(AVCodecContext *avctx)
79 QSVOtherContext *s = avctx->priv_data;
82 #if CONFIG_VP8_QSV_DECODER
83 if (avctx->codec_id == AV_CODEC_ID_VP8) {
84 static const char *uid_vp8dec_hw = "f622394d8d87452f878c51f2fc9b4131";
86 av_freep(&s->qsv.load_plugins);
87 s->qsv.load_plugins = av_strdup(uid_vp8dec_hw);
88 if (!s->qsv.load_plugins)
89 return AVERROR(ENOMEM);
93 #if CONFIG_VP9_QSV_DECODER
94 if (avctx->codec_id == AV_CODEC_ID_VP9) {
95 static const char *uid_vp9dec_hw = "a922394d8d87452f878c51f2fc9b4131";
97 av_freep(&s->qsv.load_plugins);
98 s->qsv.load_plugins = av_strdup(uid_vp9dec_hw);
99 if (!s->qsv.load_plugins)
100 return AVERROR(ENOMEM);
104 s->qsv.orig_pix_fmt = AV_PIX_FMT_NV12;
105 s->packet_fifo = av_fifo_alloc(sizeof(AVPacket));
106 if (!s->packet_fifo) {
107 ret = AVERROR(ENOMEM);
113 qsv_decode_close(avctx);
117 static int qsv_decode_frame(AVCodecContext *avctx, void *data,
118 int *got_frame, AVPacket *avpkt)
120 QSVOtherContext *s = avctx->priv_data;
121 AVFrame *frame = data;
124 /* buffer the input packet */
126 AVPacket input_ref = { 0 };
128 if (av_fifo_space(s->packet_fifo) < sizeof(input_ref)) {
129 ret = av_fifo_realloc2(s->packet_fifo,
130 av_fifo_size(s->packet_fifo) + sizeof(input_ref));
135 ret = av_packet_ref(&input_ref, avpkt);
138 av_fifo_generic_write(s->packet_fifo, &input_ref, sizeof(input_ref), NULL);
141 /* process buffered data */
142 while (!*got_frame) {
143 if (s->input_ref.size <= 0) {
145 if (av_fifo_size(s->packet_fifo) < sizeof(AVPacket))
146 return avpkt->size ? avpkt->size : ff_qsv_process_data(avctx, &s->qsv, frame, got_frame, avpkt);
147 /* in progress of reinit, no read from fifo and keep the buffer_pkt */
148 if (!s->qsv.reinit_flag) {
149 av_packet_unref(&s->input_ref);
150 av_fifo_generic_read(s->packet_fifo, &s->input_ref, sizeof(s->input_ref), NULL);
154 ret = ff_qsv_process_data(avctx, &s->qsv, frame, got_frame, &s->input_ref);
156 /* Drop input packet when failed to decode the packet. Otherwise,
157 the decoder will keep decoding the failure packet. */
158 av_packet_unref(&s->input_ref);
162 if (s->qsv.reinit_flag)
165 s->input_ref.size -= ret;
166 s->input_ref.data += ret;
172 static void qsv_decode_flush(AVCodecContext *avctx)
174 QSVOtherContext *s = avctx->priv_data;
176 qsv_clear_buffers(s);
177 ff_qsv_decode_flush(avctx, &s->qsv);
180 #define OFFSET(x) offsetof(QSVOtherContext, x)
181 #define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
182 static const AVOption options[] = {
183 { "async_depth", "Internal parallelization depth, the higher the value the higher the latency.", OFFSET(qsv.async_depth), AV_OPT_TYPE_INT, { .i64 = ASYNC_DEPTH_DEFAULT }, 1, INT_MAX, VD },
187 #if CONFIG_MPEG2_QSV_DECODER
188 static const AVClass mpeg2_qsv_class = {
189 .class_name = "mpeg2_qsv",
190 .item_name = av_default_item_name,
192 .version = LIBAVUTIL_VERSION_INT,
195 AVCodec ff_mpeg2_qsv_decoder = {
197 .long_name = NULL_IF_CONFIG_SMALL("MPEG-2 video (Intel Quick Sync Video acceleration)"),
198 .priv_data_size = sizeof(QSVOtherContext),
199 .type = AVMEDIA_TYPE_VIDEO,
200 .id = AV_CODEC_ID_MPEG2VIDEO,
201 .init = qsv_decode_init,
202 .decode = qsv_decode_frame,
203 .flush = qsv_decode_flush,
204 .close = qsv_decode_close,
205 .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_DR1 | AV_CODEC_CAP_AVOID_PROBING | AV_CODEC_CAP_HYBRID,
206 .priv_class = &mpeg2_qsv_class,
207 .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,
210 .hw_configs = ff_qsv_hw_configs,
211 .wrapper_name = "qsv",
215 #if CONFIG_VC1_QSV_DECODER
216 static const AVClass vc1_qsv_class = {
217 .class_name = "vc1_qsv",
218 .item_name = av_default_item_name,
220 .version = LIBAVUTIL_VERSION_INT,
223 AVCodec ff_vc1_qsv_decoder = {
225 .long_name = NULL_IF_CONFIG_SMALL("VC-1 video (Intel Quick Sync Video acceleration)"),
226 .priv_data_size = sizeof(QSVOtherContext),
227 .type = AVMEDIA_TYPE_VIDEO,
228 .id = AV_CODEC_ID_VC1,
229 .init = qsv_decode_init,
230 .decode = qsv_decode_frame,
231 .flush = qsv_decode_flush,
232 .close = qsv_decode_close,
233 .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_DR1 | AV_CODEC_CAP_AVOID_PROBING | AV_CODEC_CAP_HYBRID,
234 .priv_class = &vc1_qsv_class,
235 .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,
238 .hw_configs = ff_qsv_hw_configs,
239 .wrapper_name = "qsv",
243 #if CONFIG_VP8_QSV_DECODER
244 static const AVClass vp8_qsv_class = {
245 .class_name = "vp8_qsv",
246 .item_name = av_default_item_name,
248 .version = LIBAVUTIL_VERSION_INT,
251 AVCodec ff_vp8_qsv_decoder = {
253 .long_name = NULL_IF_CONFIG_SMALL("VP8 video (Intel Quick Sync Video acceleration)"),
254 .priv_data_size = sizeof(QSVOtherContext),
255 .type = AVMEDIA_TYPE_VIDEO,
256 .id = AV_CODEC_ID_VP8,
257 .init = qsv_decode_init,
258 .decode = qsv_decode_frame,
259 .flush = qsv_decode_flush,
260 .close = qsv_decode_close,
261 .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_DR1 | AV_CODEC_CAP_AVOID_PROBING | AV_CODEC_CAP_HYBRID,
262 .priv_class = &vp8_qsv_class,
263 .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,
266 .hw_configs = ff_qsv_hw_configs,
267 .wrapper_name = "qsv",
271 #if CONFIG_MJPEG_QSV_DECODER
272 static const AVClass mjpeg_qsv_class = {
273 .class_name = "mjpeg_qsv",
274 .item_name = av_default_item_name,
276 .version = LIBAVUTIL_VERSION_INT,
279 AVCodec ff_mjpeg_qsv_decoder = {
281 .long_name = NULL_IF_CONFIG_SMALL("MJPEG video (Intel Quick Sync Video acceleration)"),
282 .priv_data_size = sizeof(QSVOtherContext),
283 .type = AVMEDIA_TYPE_VIDEO,
284 .id = AV_CODEC_ID_MJPEG,
285 .init = qsv_decode_init,
286 .decode = qsv_decode_frame,
287 .flush = qsv_decode_flush,
288 .close = qsv_decode_close,
289 .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_DR1 | AV_CODEC_CAP_AVOID_PROBING | AV_CODEC_CAP_HYBRID,
290 .priv_class = &mjpeg_qsv_class,
291 .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,
297 #if CONFIG_VP9_QSV_DECODER
298 static const AVClass vp9_qsv_class = {
299 .class_name = "vp9_qsv",
300 .item_name = av_default_item_name,
302 .version = LIBAVUTIL_VERSION_INT,
305 AVCodec ff_vp9_qsv_decoder = {
307 .long_name = NULL_IF_CONFIG_SMALL("VP9 video (Intel Quick Sync Video acceleration)"),
308 .priv_data_size = sizeof(QSVOtherContext),
309 .type = AVMEDIA_TYPE_VIDEO,
310 .id = AV_CODEC_ID_VP9,
311 .init = qsv_decode_init,
312 .decode = qsv_decode_frame,
313 .flush = qsv_decode_flush,
314 .close = qsv_decode_close,
315 .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_DR1 | AV_CODEC_CAP_AVOID_PROBING | AV_CODEC_CAP_HYBRID,
316 .priv_class = &vp9_qsv_class,
317 .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,
321 .hw_configs = ff_qsv_hw_configs,
322 .wrapper_name = "qsv",