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 */
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 },
185 { "gpu_copy", "A GPU-accelerated copy between video and system memory", OFFSET(qsv.gpu_copy), AV_OPT_TYPE_INT, { .i64 = MFX_GPUCOPY_DEFAULT }, MFX_GPUCOPY_DEFAULT, MFX_GPUCOPY_OFF, VD, "gpu_copy"},
186 { "default", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_GPUCOPY_DEFAULT }, 0, 0, VD, "gpu_copy"},
187 { "on", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_GPUCOPY_ON }, 0, 0, VD, "gpu_copy"},
188 { "off", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_GPUCOPY_OFF }, 0, 0, VD, "gpu_copy"},
192 #if CONFIG_MPEG2_QSV_DECODER
193 static const AVClass mpeg2_qsv_class = {
194 .class_name = "mpeg2_qsv",
195 .item_name = av_default_item_name,
197 .version = LIBAVUTIL_VERSION_INT,
200 AVCodec ff_mpeg2_qsv_decoder = {
202 .long_name = NULL_IF_CONFIG_SMALL("MPEG-2 video (Intel Quick Sync Video acceleration)"),
203 .priv_data_size = sizeof(QSVOtherContext),
204 .type = AVMEDIA_TYPE_VIDEO,
205 .id = AV_CODEC_ID_MPEG2VIDEO,
206 .init = qsv_decode_init,
207 .decode = qsv_decode_frame,
208 .flush = qsv_decode_flush,
209 .close = qsv_decode_close,
210 .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_DR1 | AV_CODEC_CAP_AVOID_PROBING | AV_CODEC_CAP_HYBRID,
211 .priv_class = &mpeg2_qsv_class,
212 .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,
215 .hw_configs = ff_qsv_hw_configs,
216 .wrapper_name = "qsv",
220 #if CONFIG_VC1_QSV_DECODER
221 static const AVClass vc1_qsv_class = {
222 .class_name = "vc1_qsv",
223 .item_name = av_default_item_name,
225 .version = LIBAVUTIL_VERSION_INT,
228 AVCodec ff_vc1_qsv_decoder = {
230 .long_name = NULL_IF_CONFIG_SMALL("VC-1 video (Intel Quick Sync Video acceleration)"),
231 .priv_data_size = sizeof(QSVOtherContext),
232 .type = AVMEDIA_TYPE_VIDEO,
233 .id = AV_CODEC_ID_VC1,
234 .init = qsv_decode_init,
235 .decode = qsv_decode_frame,
236 .flush = qsv_decode_flush,
237 .close = qsv_decode_close,
238 .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_DR1 | AV_CODEC_CAP_AVOID_PROBING | AV_CODEC_CAP_HYBRID,
239 .priv_class = &vc1_qsv_class,
240 .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,
243 .hw_configs = ff_qsv_hw_configs,
244 .wrapper_name = "qsv",
248 #if CONFIG_VP8_QSV_DECODER
249 static const AVClass vp8_qsv_class = {
250 .class_name = "vp8_qsv",
251 .item_name = av_default_item_name,
253 .version = LIBAVUTIL_VERSION_INT,
256 AVCodec ff_vp8_qsv_decoder = {
258 .long_name = NULL_IF_CONFIG_SMALL("VP8 video (Intel Quick Sync Video acceleration)"),
259 .priv_data_size = sizeof(QSVOtherContext),
260 .type = AVMEDIA_TYPE_VIDEO,
261 .id = AV_CODEC_ID_VP8,
262 .init = qsv_decode_init,
263 .decode = qsv_decode_frame,
264 .flush = qsv_decode_flush,
265 .close = qsv_decode_close,
266 .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_DR1 | AV_CODEC_CAP_AVOID_PROBING | AV_CODEC_CAP_HYBRID,
267 .priv_class = &vp8_qsv_class,
268 .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,
271 .hw_configs = ff_qsv_hw_configs,
272 .wrapper_name = "qsv",
276 #if CONFIG_MJPEG_QSV_DECODER
277 static const AVClass mjpeg_qsv_class = {
278 .class_name = "mjpeg_qsv",
279 .item_name = av_default_item_name,
281 .version = LIBAVUTIL_VERSION_INT,
284 AVCodec ff_mjpeg_qsv_decoder = {
286 .long_name = NULL_IF_CONFIG_SMALL("MJPEG video (Intel Quick Sync Video acceleration)"),
287 .priv_data_size = sizeof(QSVOtherContext),
288 .type = AVMEDIA_TYPE_VIDEO,
289 .id = AV_CODEC_ID_MJPEG,
290 .init = qsv_decode_init,
291 .decode = qsv_decode_frame,
292 .flush = qsv_decode_flush,
293 .close = qsv_decode_close,
294 .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_DR1 | AV_CODEC_CAP_AVOID_PROBING | AV_CODEC_CAP_HYBRID,
295 .priv_class = &mjpeg_qsv_class,
296 .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,
302 #if CONFIG_VP9_QSV_DECODER
303 static const AVClass vp9_qsv_class = {
304 .class_name = "vp9_qsv",
305 .item_name = av_default_item_name,
307 .version = LIBAVUTIL_VERSION_INT,
310 AVCodec ff_vp9_qsv_decoder = {
312 .long_name = NULL_IF_CONFIG_SMALL("VP9 video (Intel Quick Sync Video acceleration)"),
313 .priv_data_size = sizeof(QSVOtherContext),
314 .type = AVMEDIA_TYPE_VIDEO,
315 .id = AV_CODEC_ID_VP9,
316 .init = qsv_decode_init,
317 .decode = qsv_decode_frame,
318 .flush = qsv_decode_flush,
319 .close = qsv_decode_close,
320 .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_DR1 | AV_CODEC_CAP_AVOID_PROBING | AV_CODEC_CAP_HYBRID,
321 .priv_class = &vp9_qsv_class,
322 .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,
326 .hw_configs = ff_qsv_hw_configs,
327 .wrapper_name = "qsv",