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qsvdec_h2645.c
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1 /*
2  * Intel MediaSDK QSV based H.264 / HEVC decoder
3  *
4  * copyright (c) 2013 Luca Barbato
5  * copyright (c) 2015 Anton Khirnov
6  *
7  * This file is part of FFmpeg.
8  *
9  * FFmpeg is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU Lesser General Public
11  * License as published by the Free Software Foundation; either
12  * version 2.1 of the License, or (at your option) any later version.
13  *
14  * FFmpeg is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17  * Lesser General Public License for more details.
18  *
19  * You should have received a copy of the GNU Lesser General Public
20  * License along with FFmpeg; if not, write to the Free Software
21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22  */
23 
24 
25 #include <stdint.h>
26 #include <string.h>
27 
28 #include <mfx/mfxvideo.h>
29 
30 #include "libavutil/common.h"
31 #include "libavutil/fifo.h"
32 #include "libavutil/opt.h"
33 
34 #include "avcodec.h"
35 #include "internal.h"
36 #include "qsv_internal.h"
37 #include "qsvdec.h"
38 #include "qsv.h"
39 
40 enum LoadPlugin {
44 };
45 
46 typedef struct QSVH2645Context {
47  AVClass *class;
49 
51 
53 
56 
58 {
59  AVPacket pkt;
60  while (av_fifo_size(s->packet_fifo) >= sizeof(pkt)) {
61  av_fifo_generic_read(s->packet_fifo, &pkt, sizeof(pkt), NULL);
62  av_packet_unref(&pkt);
63  }
64 
66 }
67 
69 {
70  QSVH2645Context *s = avctx->priv_data;
71 
73 
75 
77 
78  return 0;
79 }
80 
82 {
83  QSVH2645Context *s = avctx->priv_data;
84  int ret;
85 
86  if (avctx->codec_id == AV_CODEC_ID_HEVC && s->load_plugin != LOAD_PLUGIN_NONE) {
87  static const char * const uid_hevcdec_sw = "15dd936825ad475ea34e35f3f54217a6";
88  static const char * const uid_hevcdec_hw = "33a61c0b4c27454ca8d85dde757c6f8e";
89 
90  if (s->qsv.load_plugins[0]) {
91  av_log(avctx, AV_LOG_WARNING,
92  "load_plugins is not empty, but load_plugin is not set to 'none'."
93  "The load_plugin value will be ignored.\n");
94  } else {
96 
98  s->qsv.load_plugins = av_strdup(uid_hevcdec_sw);
99  else
100  s->qsv.load_plugins = av_strdup(uid_hevcdec_hw);
101  if (!s->qsv.load_plugins)
102  return AVERROR(ENOMEM);
103  }
104  }
105 
106  s->packet_fifo = av_fifo_alloc(sizeof(AVPacket));
107  if (!s->packet_fifo) {
108  ret = AVERROR(ENOMEM);
109  goto fail;
110  }
111 
112  return 0;
113 fail:
114  qsv_decode_close(avctx);
115  return ret;
116 }
117 
118 static int qsv_decode_frame(AVCodecContext *avctx, void *data,
119  int *got_frame, AVPacket *avpkt)
120 {
121  QSVH2645Context *s = avctx->priv_data;
122  AVFrame *frame = data;
123  int ret;
124 
125  /* buffer the input packet */
126  if (avpkt->size) {
127  AVPacket input_ref = { 0 };
128 
129  if (av_fifo_space(s->packet_fifo) < sizeof(input_ref)) {
130  ret = av_fifo_realloc2(s->packet_fifo,
131  av_fifo_size(s->packet_fifo) + sizeof(input_ref));
132  if (ret < 0)
133  return ret;
134  }
135 
136  ret = av_packet_ref(&input_ref, avpkt);
137  if (ret < 0)
138  return ret;
139  av_fifo_generic_write(s->packet_fifo, &input_ref, sizeof(input_ref), NULL);
140  }
141 
142  /* process buffered data */
143  while (!*got_frame) {
144  /* prepare the input data */
145  if (s->buffer_pkt.size <= 0) {
146  /* no more data */
147  if (av_fifo_size(s->packet_fifo) < sizeof(AVPacket))
148  return avpkt->size ? avpkt->size : ff_qsv_process_data(avctx, &s->qsv, frame, got_frame, avpkt);
149 
151 
153  }
154 
155  ret = ff_qsv_process_data(avctx, &s->qsv, frame, got_frame, &s->buffer_pkt);
156  if (ret < 0)
157  return ret;
158 
159  s->buffer_pkt.size -= ret;
160  s->buffer_pkt.data += ret;
161  }
162 
163  return avpkt->size;
164 }
165 
166 static void qsv_decode_flush(AVCodecContext *avctx)
167 {
168  QSVH2645Context *s = avctx->priv_data;
169 
171  ff_qsv_decode_flush(avctx, &s->qsv);
172 }
173 
174 #if defined(_WIN32)
175 #define LOAD_PLUGIN_DEFAULT LOAD_PLUGIN_HEVC_SW
176 #else
177 #define LOAD_PLUGIN_DEFAULT LOAD_PLUGIN_HEVC_HW
178 #endif
179 
180 #define OFFSET(x) offsetof(QSVH2645Context, x)
181 #define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
182 
183 #if CONFIG_HEVC_QSV_DECODER
184 static const AVOption hevc_options[] = {
185  { "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 },
186 
187  { "load_plugin", "A user plugin to load in an internal session", OFFSET(load_plugin), AV_OPT_TYPE_INT, { .i64 = LOAD_PLUGIN_DEFAULT }, LOAD_PLUGIN_NONE, LOAD_PLUGIN_HEVC_HW, VD, "load_plugin" },
188  { "none", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = LOAD_PLUGIN_NONE }, 0, 0, VD, "load_plugin" },
189  { "hevc_sw", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = LOAD_PLUGIN_HEVC_SW }, 0, 0, VD, "load_plugin" },
190  { "hevc_hw", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = LOAD_PLUGIN_HEVC_HW }, 0, 0, VD, "load_plugin" },
191 
192  { "load_plugins", "A :-separate list of hexadecimal plugin UIDs to load in an internal session",
193  OFFSET(qsv.load_plugins), AV_OPT_TYPE_STRING, { .str = "" }, 0, 0, VD },
194  { NULL },
195 };
196 
197 static const AVClass hevc_class = {
198  .class_name = "hevc_qsv",
199  .item_name = av_default_item_name,
200  .option = hevc_options,
201  .version = LIBAVUTIL_VERSION_INT,
202 };
203 
204 AVCodec ff_hevc_qsv_decoder = {
205  .name = "hevc_qsv",
206  .long_name = NULL_IF_CONFIG_SMALL("HEVC (Intel Quick Sync Video acceleration)"),
207  .priv_data_size = sizeof(QSVH2645Context),
209  .id = AV_CODEC_ID_HEVC,
213  .close = qsv_decode_close,
215  .priv_class = &hevc_class,
216  .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,
219  AV_PIX_FMT_NONE },
220  .hw_configs = ff_qsv_hw_configs,
221  .bsfs = "hevc_mp4toannexb",
222 };
223 #endif
224 
225 #if CONFIG_H264_QSV_DECODER
226 static const AVOption options[] = {
227  { "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 },
228  { NULL },
229 };
230 
231 static const AVClass class = {
232  .class_name = "h264_qsv",
233  .item_name = av_default_item_name,
234  .option = options,
235  .version = LIBAVUTIL_VERSION_INT,
236 };
237 
238 AVCodec ff_h264_qsv_decoder = {
239  .name = "h264_qsv",
240  .long_name = NULL_IF_CONFIG_SMALL("H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (Intel Quick Sync Video acceleration)"),
241  .priv_data_size = sizeof(QSVH2645Context),
243  .id = AV_CODEC_ID_H264,
247  .close = qsv_decode_close,
249  .priv_class = &class,
250  .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,
253  AV_PIX_FMT_NONE },
254  .hw_configs = ff_qsv_hw_configs,
255  .bsfs = "h264_mp4toannexb",
256 };
257 #endif
#define NULL
Definition: coverity.c:32
const char * s
Definition: avisynth_c.h:768
This structure describes decoded (raw) audio or video data.
Definition: frame.h:201
AVOption.
Definition: opt.h:246
ptrdiff_t const GLvoid * data
Definition: opengl_enc.c:101
static void flush(AVCodecContext *avctx)
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
#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 av_cold int qsv_decode_close(AVCodecContext *avctx)
Definition: qsvdec_h2645.c:68
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
AVPacket buffer_pkt
Definition: qsvdec_h2645.c:54
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
#define AV_PIX_FMT_P010
Definition: pixfmt.h:413
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
static const AVOption hevc_options[]
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
#define LOAD_PLUGIN_DEFAULT
Definition: qsvdec_h2645.c:177
uint8_t * data
Definition: avcodec.h:1400
#define VD
Definition: qsvdec_h2645.c:181
void av_fifo_free(AVFifoBuffer *f)
Free an AVFifoBuffer.
Definition: fifo.c:55
const OptionDef options[]
Definition: ffserver.c:3948
#define av_log(a,...)
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
AVFifoBuffer * packet_fifo
Definition: qsvdec_h2645.c:52
#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:112
void ff_qsv_decode_flush(AVCodecContext *avctx, QSVContext *q)
Definition: qsvdec.c:548
#define ASYNC_DEPTH_DEFAULT
Definition: qsv_internal.h:33
static void qsv_decode_flush(AVCodecContext *avctx)
Definition: qsvdec_h2645.c:166
#define OFFSET(x)
Definition: qsvdec_h2645.c:180
QSVContext qsv
Definition: qsvdec_h2645.c:48
char * av_strdup(const char *s)
Duplicate a string.
Definition: mem.c:251
Libavcodec external API header.
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
static int qsv_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
Definition: qsvdec_h2645.c:118
char * load_plugins
Definition: qsvdec.h:68
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:266
static av_cold int qsv_decode_init(AVCodecContext *avctx)
Definition: qsvdec_h2645.c:81
common internal api header.
common internal and external API header
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
static void qsv_clear_buffers(QSVH2645Context *s)
Definition: qsvdec_h2645.c:57
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
LoadPlugin
Definition: qsvdec_h2645.c:40