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qsvdec_other.c
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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 FFmpeg.
7  *
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.
12  *
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.
17  *
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
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;
42 
44 
47 
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 
57 }
58 
60 {
61  QSVOtherContext *s = avctx->priv_data;
62 
63 #if CONFIG_VP8_QSV_DECODER
64  if (avctx->codec_id == AV_CODEC_ID_VP8)
66 #endif
67 
69 
71 
73 
74  return 0;
75 }
76 
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 
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  /* in progress of reinit, no read from fifo and keep the buffer_pkt */
136  if (!s->qsv.reinit_flag) {
139  }
140  }
141 
142  ret = ff_qsv_process_data(avctx, &s->qsv, frame, got_frame, &s->input_ref);
143  if (ret < 0) {
144  /* Drop input packet when failed to decode the packet. Otherwise,
145  the decoder will keep decoding the failure packet. */
147 
148  return ret;
149  }
150  if (s->qsv.reinit_flag)
151  continue;
152 
153  s->input_ref.size -= ret;
154  s->input_ref.data += ret;
155  }
156 
157  return avpkt->size;
158 }
159 
160 static void qsv_decode_flush(AVCodecContext *avctx)
161 {
162  QSVOtherContext *s = avctx->priv_data;
163 
165  ff_qsv_decode_flush(avctx, &s->qsv);
166 }
167 
168 #define OFFSET(x) offsetof(QSVOtherContext, x)
169 #define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
170 static const AVOption options[] = {
171  { "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 },
172  { NULL },
173 };
174 
175 #if CONFIG_MPEG2_QSV_DECODER
176 static const AVClass mpeg2_qsv_class = {
177  .class_name = "mpeg2_qsv",
178  .item_name = av_default_item_name,
179  .option = options,
180  .version = LIBAVUTIL_VERSION_INT,
181 };
182 
184  .name = "mpeg2_qsv",
185  .long_name = NULL_IF_CONFIG_SMALL("MPEG-2 video (Intel Quick Sync Video acceleration)"),
186  .priv_data_size = sizeof(QSVOtherContext),
192  .close = qsv_decode_close,
194  .priv_class = &mpeg2_qsv_class,
195  .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,
197  AV_PIX_FMT_NONE },
198  .hw_configs = ff_qsv_hw_configs,
199  .wrapper_name = "qsv",
200 };
201 #endif
202 
203 #if CONFIG_VC1_QSV_DECODER
204 static const AVClass vc1_qsv_class = {
205  .class_name = "vc1_qsv",
206  .item_name = av_default_item_name,
207  .option = options,
208  .version = LIBAVUTIL_VERSION_INT,
209 };
210 
212  .name = "vc1_qsv",
213  .long_name = NULL_IF_CONFIG_SMALL("VC-1 video (Intel Quick Sync Video acceleration)"),
214  .priv_data_size = sizeof(QSVOtherContext),
216  .id = AV_CODEC_ID_VC1,
220  .close = qsv_decode_close,
222  .priv_class = &vc1_qsv_class,
223  .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,
225  AV_PIX_FMT_NONE },
226  .hw_configs = ff_qsv_hw_configs,
227  .wrapper_name = "qsv",
228 };
229 #endif
230 
231 #if CONFIG_VP8_QSV_DECODER
232 static const AVClass vp8_qsv_class = {
233  .class_name = "vp8_qsv",
234  .item_name = av_default_item_name,
235  .option = options,
236  .version = LIBAVUTIL_VERSION_INT,
237 };
238 
240  .name = "vp8_qsv",
241  .long_name = NULL_IF_CONFIG_SMALL("VP8 video (Intel Quick Sync Video acceleration)"),
242  .priv_data_size = sizeof(QSVOtherContext),
244  .id = AV_CODEC_ID_VP8,
248  .close = qsv_decode_close,
250  .priv_class = &vp8_qsv_class,
251  .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,
253  AV_PIX_FMT_NONE },
254  .hw_configs = ff_qsv_hw_configs,
255  .wrapper_name = "qsv",
256 };
257 #endif
#define OFFSET(x)
Definition: qsvdec_other.c:168
#define NULL
Definition: coverity.c:32
static void qsv_decode_flush(AVCodecContext *avctx)
Definition: qsvdec_other.c:160
This structure describes decoded (raw) audio or video data.
Definition: frame.h:226
static av_cold int qsv_decode_close(AVCodecContext *avctx)
Definition: qsvdec_other.c:59
AVOption.
Definition: opt.h:246
ptrdiff_t const GLvoid * data
Definition: opengl_enc.c:101
static void flush(AVCodecContext *avctx)
AVCodec ff_vc1_qsv_decoder
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
int size
Definition: avcodec.h:1453
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:191
static AVPacket pkt
AVCodec.
Definition: avcodec.h:3441
AVCodec ff_vp8_qsv_decoder
static void decode(AVCodecContext *dec_ctx, AVPacket *pkt, AVFrame *frame, FILE *outfile)
Definition: decode_audio.c:42
int av_fifo_generic_write(AVFifoBuffer *f, void *src, int size, int(*func)(void *, void *, int))
Feed data from a user-supplied callback to an AVFifoBuffer.
Definition: fifo.c:122
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
Definition: log.h:72
#define AV_CODEC_CAP_DELAY
Encoder or decoder requires flushing with NULL input at the end in order to give the complete and cor...
Definition: avcodec.h:993
#define av_cold
Definition: attributes.h:82
AVOptions.
int ff_qsv_decode_close(QSVContext *q)
Definition: qsvdec.c:452
AVFifoBuffer * packet_fifo
Definition: qsvdec_other.c:43
int av_fifo_space(const AVFifoBuffer *f)
Return the amount of space in bytes in the AVFifoBuffer, that is the amount of data you can write int...
Definition: fifo.c:82
static AVFrame * frame
uint8_t * data
Definition: avcodec.h:1452
void av_fifo_free(AVFifoBuffer *f)
Free an AVFifoBuffer.
Definition: fifo.c:55
int av_packet_ref(AVPacket *dst, const AVPacket *src)
Setup a new reference to the data described by a given packet.
Definition: avpacket.c:607
static const AVOption options[]
Definition: qsvdec_other.c:170
#define AVERROR(e)
Definition: error.h:43
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:186
int reinit_flag
Definition: qsvdec.h:57
int av_fifo_generic_read(AVFifoBuffer *f, void *dest, int buf_size, void(*func)(void *, void *, int))
Feed data from an AVFifoBuffer to a user-supplied callback.
Definition: fifo.c:213
planar YUV 4:2:0, 12bpp, 1 plane for Y and 1 plane for the UV components, which are interleaved (firs...
Definition: pixfmt.h:89
const char * name
Name of the codec implementation.
Definition: avcodec.h:3448
#define fail()
Definition: checkasm.h:117
void ff_qsv_decode_flush(AVCodecContext *avctx, QSVContext *q)
Definition: qsvdec.c:587
#define ASYNC_DEPTH_DEFAULT
Definition: qsv_internal.h:33
#define s(width, name)
Definition: cbs_vp9.c:257
AVPacket input_ref
Definition: qsvdec_other.c:45
#define VD
Definition: qsvdec_other.c:169
preferred ID for MPEG-1/2 video decoding
Definition: avcodec.h:220
char * av_strdup(const char *s)
Duplicate a string.
Definition: mem.c:251
Libavcodec external API header.
AVCodec ff_mpeg2_qsv_decoder
static void qsv_clear_buffers(QSVOtherContext *s)
Definition: qsvdec_other.c:48
enum AVCodecID codec_id
Definition: avcodec.h:1550
int av_fifo_size(const AVFifoBuffer *f)
Return the amount of data in bytes in the AVFifoBuffer, that is the amount of data you can read from ...
Definition: fifo.c:77
int av_fifo_realloc2(AVFifoBuffer *f, unsigned int new_size)
Resize an AVFifoBuffer.
Definition: fifo.c:87
main external API structure.
Definition: avcodec.h:1540
void av_packet_unref(AVPacket *pkt)
Wipe the packet.
Definition: avpacket.c:598
a very simple circular buffer FIFO implementation
GLint GLenum type
Definition: opengl_enc.c:105
#define AV_CODEC_CAP_HYBRID
Codec is potentially backed by a hardware implementation, but not necessarily.
Definition: avcodec.h:1072
Describe the class of an AVClass context structure.
Definition: log.h:67
HW acceleration through QSV, data[3] contains a pointer to the mfxFrameSurface1 structure.
Definition: pixfmt.h:222
char * load_plugins
Definition: qsvdec.h:70
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:266
common internal api header.
common internal and external API header
static av_cold int qsv_decode_init(AVCodecContext *avctx)
Definition: qsvdec_other.c:77
static int qsv_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
Definition: qsvdec_other.c:105
void * priv_data
Definition: avcodec.h:1567
AVFifoBuffer * av_fifo_alloc(unsigned int size)
Initialize an AVFifoBuffer.
Definition: fifo.c:43
#define AV_CODEC_CAP_AVOID_PROBING
Decoder is not a preferred choice for probing.
Definition: avcodec.h:1050
#define av_freep(p)
const AVCodecHWConfigInternal * ff_qsv_hw_configs[]
Definition: qsvdec.c:44
int ff_qsv_process_data(AVCodecContext *avctx, QSVContext *q, AVFrame *frame, int *got_frame, AVPacket *pkt)
Definition: qsvdec.c:491
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
This structure stores compressed data.
Definition: avcodec.h:1429
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
Definition: avcodec.h:968
QSVContext qsv
Definition: qsvdec_other.c:41