lavc: Delete all fake hwaccels
[libav.git] / libavcodec / qsvdec_other.c
1 /*
2 * Intel MediaSDK QSV based MPEG-2, VC-1 and VP8 decoders
3 *
4 * copyright (c) 2015 Anton Khirnov
5 *
6 * This file is part of Libav.
7 *
8 * Libav 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.
12 *
13 * Libav 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.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with Libav; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 */
22
23
24 #include <stdint.h>
25 #include <string.h>
26
27 #include <mfx/mfxvideo.h>
28
29 #include "libavutil/common.h"
30 #include "libavutil/fifo.h"
31 #include "libavutil/opt.h"
32
33 #include "avcodec.h"
34 #include "internal.h"
35 #include "qsv_internal.h"
36 #include "qsvdec.h"
37 #include "qsv.h"
38
39 typedef struct QSVOtherContext {
40 AVClass *class;
41 QSVContext qsv;
42
43 AVFifoBuffer *packet_fifo;
44
45 AVPacket input_ref;
46 } QSVOtherContext;
47
48 static void qsv_clear_buffers(QSVOtherContext *s)
49 {
50 AVPacket pkt;
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);
54 }
55
56 av_packet_unref(&s->input_ref);
57 }
58
59 static av_cold int qsv_decode_close(AVCodecContext *avctx)
60 {
61 QSVOtherContext *s = avctx->priv_data;
62
63 #if CONFIG_VP8_QSV_DECODER
64 if (avctx->codec_id == AV_CODEC_ID_VP8)
65 av_freep(&s->qsv.load_plugins);
66 #endif
67
68 ff_qsv_decode_close(&s->qsv);
69
70 qsv_clear_buffers(s);
71
72 av_fifo_free(s->packet_fifo);
73
74 return 0;
75 }
76
77 static av_cold int qsv_decode_init(AVCodecContext *avctx)
78 {
79 QSVOtherContext *s = avctx->priv_data;
80 int ret;
81
82 #if CONFIG_VP8_QSV_DECODER
83 if (avctx->codec_id == AV_CODEC_ID_VP8) {
84 static const char *uid_vp8dec_hw = "f622394d8d87452f878c51f2fc9b4131";
85
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);
90 }
91 #endif
92
93 s->packet_fifo = av_fifo_alloc(sizeof(AVPacket));
94 if (!s->packet_fifo) {
95 ret = AVERROR(ENOMEM);
96 goto fail;
97 }
98
99 return 0;
100 fail:
101 qsv_decode_close(avctx);
102 return ret;
103 }
104
105 static int qsv_decode_frame(AVCodecContext *avctx, void *data,
106 int *got_frame, AVPacket *avpkt)
107 {
108 QSVOtherContext *s = avctx->priv_data;
109 AVFrame *frame = data;
110 int ret;
111
112 /* buffer the input packet */
113 if (avpkt->size) {
114 AVPacket input_ref = { 0 };
115
116 if (av_fifo_space(s->packet_fifo) < sizeof(input_ref)) {
117 ret = av_fifo_realloc2(s->packet_fifo,
118 av_fifo_size(s->packet_fifo) + sizeof(input_ref));
119 if (ret < 0)
120 return ret;
121 }
122
123 ret = av_packet_ref(&input_ref, avpkt);
124 if (ret < 0)
125 return ret;
126 av_fifo_generic_write(s->packet_fifo, &input_ref, sizeof(input_ref), NULL);
127 }
128
129 /* process buffered data */
130 while (!*got_frame) {
131 if (s->input_ref.size <= 0) {
132 /* no more data */
133 if (av_fifo_size(s->packet_fifo) < sizeof(AVPacket))
134 return avpkt->size ? avpkt->size : ff_qsv_process_data(avctx, &s->qsv, frame, got_frame, avpkt);
135
136 av_packet_unref(&s->input_ref);
137 av_fifo_generic_read(s->packet_fifo, &s->input_ref, sizeof(s->input_ref), NULL);
138 }
139
140 ret = ff_qsv_process_data(avctx, &s->qsv, frame, got_frame, &s->input_ref);
141 if (ret < 0)
142 return ret;
143
144 s->input_ref.size -= ret;
145 s->input_ref.data += ret;
146 }
147
148 return avpkt->size;
149 }
150
151 static void qsv_decode_flush(AVCodecContext *avctx)
152 {
153 QSVOtherContext *s = avctx->priv_data;
154
155 qsv_clear_buffers(s);
156 ff_qsv_decode_flush(avctx, &s->qsv);
157 }
158
159 #define OFFSET(x) offsetof(QSVOtherContext, x)
160 #define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
161 static const AVOption options[] = {
162 { "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 }, 0, INT_MAX, VD },
163 { NULL },
164 };
165
166 #if CONFIG_MPEG2_QSV_DECODER
167 static const AVClass mpeg2_qsv_class = {
168 .class_name = "mpeg2_qsv",
169 .item_name = av_default_item_name,
170 .option = options,
171 .version = LIBAVUTIL_VERSION_INT,
172 };
173
174 AVCodec ff_mpeg2_qsv_decoder = {
175 .name = "mpeg2_qsv",
176 .long_name = NULL_IF_CONFIG_SMALL("MPEG-2 video (Intel Quick Sync Video acceleration)"),
177 .priv_data_size = sizeof(QSVOtherContext),
178 .type = AVMEDIA_TYPE_VIDEO,
179 .id = AV_CODEC_ID_MPEG2VIDEO,
180 .init = qsv_decode_init,
181 .decode = qsv_decode_frame,
182 .flush = qsv_decode_flush,
183 .close = qsv_decode_close,
184 .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_DR1 | AV_CODEC_CAP_HYBRID,
185 .priv_class = &mpeg2_qsv_class,
186 .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,
187 AV_PIX_FMT_QSV,
188 AV_PIX_FMT_NONE },
189 .hw_configs = ff_qsv_hw_configs,
190 .wrapper_name = "qsv",
191 };
192 #endif
193
194 #if CONFIG_VC1_QSV_DECODER
195 static const AVClass vc1_qsv_class = {
196 .class_name = "vc1_qsv",
197 .item_name = av_default_item_name,
198 .option = options,
199 .version = LIBAVUTIL_VERSION_INT,
200 };
201
202 AVCodec ff_vc1_qsv_decoder = {
203 .name = "vc1_qsv",
204 .long_name = NULL_IF_CONFIG_SMALL("VC-1 video (Intel Quick Sync Video acceleration)"),
205 .priv_data_size = sizeof(QSVOtherContext),
206 .type = AVMEDIA_TYPE_VIDEO,
207 .id = AV_CODEC_ID_VC1,
208 .init = qsv_decode_init,
209 .decode = qsv_decode_frame,
210 .flush = qsv_decode_flush,
211 .close = qsv_decode_close,
212 .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_DR1 | AV_CODEC_CAP_HYBRID,
213 .priv_class = &vc1_qsv_class,
214 .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,
215 AV_PIX_FMT_QSV,
216 AV_PIX_FMT_NONE },
217 .hw_configs = ff_qsv_hw_configs,
218 .wrapper_name = "qsv",
219 };
220 #endif
221
222 #if CONFIG_VP8_QSV_DECODER
223 static const AVClass vp8_qsv_class = {
224 .class_name = "vp8_qsv",
225 .item_name = av_default_item_name,
226 .option = options,
227 .version = LIBAVUTIL_VERSION_INT,
228 };
229
230 AVCodec ff_vp8_qsv_decoder = {
231 .name = "vp8_qsv",
232 .long_name = NULL_IF_CONFIG_SMALL("VP8 video (Intel Quick Sync Video acceleration)"),
233 .priv_data_size = sizeof(QSVOtherContext),
234 .type = AVMEDIA_TYPE_VIDEO,
235 .id = AV_CODEC_ID_VP8,
236 .init = qsv_decode_init,
237 .decode = qsv_decode_frame,
238 .flush = qsv_decode_flush,
239 .close = qsv_decode_close,
240 .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_DR1 | AV_CODEC_CAP_HYBRID,
241 .priv_class = &vp8_qsv_class,
242 .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,
243 AV_PIX_FMT_QSV,
244 AV_PIX_FMT_NONE },
245 .hw_configs = ff_qsv_hw_configs,
246 .wrapper_name = "qsv",
247 };
248 #endif