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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 
64 
66 
68 
69  return 0;
70 }
71 
73 {
74  QSVOtherContext *s = avctx->priv_data;
75  int ret;
76 
77 #if CONFIG_VP8_QSV_DECODER
78  if (avctx->codec_id == AV_CODEC_ID_VP8) {
79  static const char *uid_vp8dec_hw = "f622394d8d87452f878c51f2fc9b4131";
80 
82  s->qsv.load_plugins = av_strdup(uid_vp8dec_hw);
83  if (!s->qsv.load_plugins)
84  return AVERROR(ENOMEM);
85  }
86 #endif
87 
88  s->packet_fifo = av_fifo_alloc(sizeof(AVPacket));
89  if (!s->packet_fifo) {
90  ret = AVERROR(ENOMEM);
91  goto fail;
92  }
93 
94  return 0;
95 fail:
96  qsv_decode_close(avctx);
97  return ret;
98 }
99 
100 static int qsv_decode_frame(AVCodecContext *avctx, void *data,
101  int *got_frame, AVPacket *avpkt)
102 {
103  QSVOtherContext *s = avctx->priv_data;
104  AVFrame *frame = data;
105  int ret;
106 
107  /* buffer the input packet */
108  if (avpkt->size) {
109  AVPacket input_ref = { 0 };
110 
111  if (av_fifo_space(s->packet_fifo) < sizeof(input_ref)) {
112  ret = av_fifo_realloc2(s->packet_fifo,
113  av_fifo_size(s->packet_fifo) + sizeof(input_ref));
114  if (ret < 0)
115  return ret;
116  }
117 
118  ret = av_packet_ref(&input_ref, avpkt);
119  if (ret < 0)
120  return ret;
121  av_fifo_generic_write(s->packet_fifo, &input_ref, sizeof(input_ref), NULL);
122  }
123 
124  /* process buffered data */
125  while (!*got_frame) {
126  if (s->input_ref.size <= 0) {
127  /* no more data */
128  if (av_fifo_size(s->packet_fifo) < sizeof(AVPacket))
129  return avpkt->size ? avpkt->size : ff_qsv_process_data(avctx, &s->qsv, frame, got_frame, avpkt);
130 
133  }
134 
135  ret = ff_qsv_process_data(avctx, &s->qsv, frame, got_frame, &s->input_ref);
136  if (ret < 0)
137  return ret;
138 
139  s->input_ref.size -= ret;
140  s->input_ref.data += ret;
141  }
142 
143  return avpkt->size;
144 }
145 
146 static void qsv_decode_flush(AVCodecContext *avctx)
147 {
148  QSVOtherContext *s = avctx->priv_data;
149 
151  ff_qsv_decode_flush(avctx, &s->qsv);
152 }
153 
154 #define OFFSET(x) offsetof(QSVOtherContext, x)
155 #define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
156 static const AVOption options[] = {
157  { "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 },
158  { NULL },
159 };
160 
161 #if CONFIG_MPEG2_QSV_DECODER
162 static const AVClass mpeg2_qsv_class = {
163  .class_name = "mpeg2_qsv",
164  .item_name = av_default_item_name,
165  .option = options,
166  .version = LIBAVUTIL_VERSION_INT,
167 };
168 
169 AVCodec ff_mpeg2_qsv_decoder = {
170  .name = "mpeg2_qsv",
171  .long_name = NULL_IF_CONFIG_SMALL("MPEG-2 video (Intel Quick Sync Video acceleration)"),
172  .priv_data_size = sizeof(QSVOtherContext),
178  .close = qsv_decode_close,
180  .priv_class = &mpeg2_qsv_class,
181  .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,
183  AV_PIX_FMT_NONE },
184  .hw_configs = ff_qsv_hw_configs,
185 };
186 #endif
187 
188 #if CONFIG_VC1_QSV_DECODER
189 static const AVClass vc1_qsv_class = {
190  .class_name = "vc1_qsv",
191  .item_name = av_default_item_name,
192  .option = options,
193  .version = LIBAVUTIL_VERSION_INT,
194 };
195 
196 AVCodec ff_vc1_qsv_decoder = {
197  .name = "vc1_qsv",
198  .long_name = NULL_IF_CONFIG_SMALL("VC-1 video (Intel Quick Sync Video acceleration)"),
199  .priv_data_size = sizeof(QSVOtherContext),
201  .id = AV_CODEC_ID_VC1,
205  .close = qsv_decode_close,
207  .priv_class = &vc1_qsv_class,
208  .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,
210  AV_PIX_FMT_NONE },
211  .hw_configs = ff_qsv_hw_configs,
212 };
213 #endif
214 
215 #if CONFIG_VP8_QSV_DECODER
216 static const AVClass vp8_qsv_class = {
217  .class_name = "vp8_qsv",
218  .item_name = av_default_item_name,
219  .option = options,
220  .version = LIBAVUTIL_VERSION_INT,
221 };
222 
223 AVCodec ff_vp8_qsv_decoder = {
224  .name = "vp8_qsv",
225  .long_name = NULL_IF_CONFIG_SMALL("VP8 video (Intel Quick Sync Video acceleration)"),
226  .priv_data_size = sizeof(QSVOtherContext),
228  .id = AV_CODEC_ID_VP8,
232  .close = qsv_decode_close,
234  .priv_class = &vp8_qsv_class,
235  .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,
237  AV_PIX_FMT_NONE },
238  .hw_configs = ff_qsv_hw_configs,
239 };
240 #endif
#define OFFSET(x)
Definition: qsvdec_other.c:154
#define NULL
Definition: coverity.c:32
const char * s
Definition: avisynth_c.h:768
static void qsv_decode_flush(AVCodecContext *avctx)
Definition: qsvdec_other.c:146
This structure describes decoded (raw) audio or video data.
Definition: frame.h:201
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)
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
int size
Definition: avcodec.h:1401
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:193
static AVPacket pkt
AVCodec.
Definition: avcodec.h:3351
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:981
#define av_cold
Definition: attributes.h:82
AVOptions.
int ff_qsv_decode_close(QSVContext *q)
Definition: qsvdec.c:433
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:1400
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:599
static const AVOption options[]
Definition: qsvdec_other.c:156
#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 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:85
const char * name
Name of the codec implementation.
Definition: avcodec.h:3358
#define fail()
Definition: checkasm.h:113
void ff_qsv_decode_flush(AVCodecContext *avctx, QSVContext *q)
Definition: qsvdec.c:548
#define ASYNC_DEPTH_DEFAULT
Definition: qsv_internal.h:33
AVPacket input_ref
Definition: qsvdec_other.c:45
#define VD
Definition: qsvdec_other.c:155
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.
static void qsv_clear_buffers(QSVOtherContext *s)
Definition: qsvdec_other.c:48
enum AVCodecID codec_id
Definition: avcodec.h:1498
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:1488
void av_packet_unref(AVPacket *pkt)
Wipe the packet.
Definition: avpacket.c:590
a very simple circular buffer FIFO implementation
GLint GLenum type
Definition: opengl_enc.c:105
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:218
char * load_plugins
Definition: qsvdec.h:68
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:72
static int qsv_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
Definition: qsvdec_other.c:100
void * priv_data
Definition: avcodec.h:1515
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:1038
#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:472
AVPixelFormat
Pixel format.
Definition: pixfmt.h:60
This structure stores compressed data.
Definition: avcodec.h:1377
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
Definition: avcodec.h:956
QSVContext qsv
Definition: qsvdec_other.c:41