FFmpeg: libavfilter/vf_transpose_vaapi.c Source File

FFmpeg
vf_transpose_vaapi.c
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1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 #include <string.h>
19 
20 #include "libavutil/opt.h"
21 #include "libavutil/pixdesc.h"
22 
23 #include "avfilter.h"
24 #include "formats.h"
25 #include "internal.h"
26 #include "transpose.h"
27 #include "vaapi_vpp.h"
28 
29  typedef struct TransposeVAAPIContext {
30   VAAPIVPPContext vpp_ctx; // must be the first field
31   int passthrough; // PassthroughType, landscape passthrough mode enabled
32   int dir; // TransposeDir
33 
34   int rotation_state;
35   int mirror_state;
36 } TransposeVAAPIContext;
37 
38  static int transpose_vaapi_build_filter_params(AVFilterContext *avctx)
39 {
40  VAAPIVPPContext *vpp_ctx = avctx->priv;
41  TransposeVAAPIContext *ctx = avctx->priv;
42  VAStatus vas;
43  int support_flag;
44  VAProcPipelineCaps pipeline_caps;
45 
46  memset(&pipeline_caps, 0, sizeof(pipeline_caps));
47  vas = vaQueryVideoProcPipelineCaps(vpp_ctx->hwctx->display,
48  vpp_ctx->va_context,
49  NULL, 0,
50  &pipeline_caps);
51  if (vas != VA_STATUS_SUCCESS) {
52  av_log(avctx, AV_LOG_ERROR, "Failed to query pipeline "
53  "caps: %d (%s).\n", vas, vaErrorStr(vas));
54  return AVERROR(EIO);
55  }
56 
57  if (!pipeline_caps.rotation_flags) {
58  av_log(avctx, AV_LOG_ERROR, "VAAPI driver doesn't support transpose\n");
59  return AVERROR(EINVAL);
60  }
61 
62  switch (ctx->dir) {
63  case TRANSPOSE_CCLOCK_FLIP:
64  ctx->rotation_state = VA_ROTATION_270;
65  ctx->mirror_state = VA_MIRROR_VERTICAL;
66  break;
67  case TRANSPOSE_CLOCK:
68  ctx->rotation_state = VA_ROTATION_90;
69  ctx->mirror_state = VA_MIRROR_NONE;
70  break;
71  case TRANSPOSE_CCLOCK:
72  ctx->rotation_state = VA_ROTATION_270;
73  ctx->mirror_state = VA_MIRROR_NONE;
74  break;
75  case TRANSPOSE_CLOCK_FLIP:
76  ctx->rotation_state = VA_ROTATION_90;
77  ctx->mirror_state = VA_MIRROR_VERTICAL;
78  break;
79  case TRANSPOSE_REVERSAL:
80  ctx->rotation_state = VA_ROTATION_180;
81  ctx->mirror_state = VA_MIRROR_NONE;
82  break;
83  case TRANSPOSE_HFLIP:
84  ctx->rotation_state = VA_ROTATION_NONE;
85  ctx->mirror_state = VA_MIRROR_HORIZONTAL;
86  break;
87  case TRANSPOSE_VFLIP:
88  ctx->rotation_state = VA_ROTATION_NONE;
89  ctx->mirror_state = VA_MIRROR_VERTICAL;
90  break;
91  default:
92  av_log(avctx, AV_LOG_ERROR, "Failed to set direction to %d\n", ctx->dir);
93  return AVERROR(EINVAL);
94  }
95 
96  if (VA_ROTATION_NONE != ctx->rotation_state) {
97  support_flag = pipeline_caps.rotation_flags & (1 << ctx->rotation_state);
98  if (!support_flag) {
99  av_log(avctx, AV_LOG_ERROR, "VAAPI driver doesn't support rotation %d\n",
100  ctx->rotation_state);
101  return AVERROR(EINVAL);
102  }
103  }
104 
105  if (VA_MIRROR_NONE != ctx->mirror_state) {
106  support_flag = pipeline_caps.mirror_flags & ctx->mirror_state;
107  if (!support_flag) {
108  av_log(avctx, AV_LOG_ERROR, "VAAPI driver doesn't support mirror %d\n",
109  ctx->mirror_state);
110  return AVERROR(EINVAL);
111  }
112  }
113 
114  return 0;
115 }
116 
117  static int transpose_vaapi_filter_frame(AVFilterLink *inlink, AVFrame *input_frame)
118 {
119  AVFilterContext *avctx = inlink->dst;
120  AVFilterLink *outlink = avctx->outputs[0];
121  VAAPIVPPContext *vpp_ctx = avctx->priv;
122  TransposeVAAPIContext *ctx = avctx->priv;
123  AVFrame *output_frame = NULL;
124  VAProcPipelineParameterBuffer params;
125  int err;
126 
127  if (ctx->passthrough)
128  return ff_filter_frame(outlink, input_frame);
129 
130  av_log(avctx, AV_LOG_DEBUG, "Filter input: %s, %ux%u (%"PRId64").\n",
131  av_get_pix_fmt_name(input_frame->format),
132  input_frame->width, input_frame->height, input_frame->pts);
133 
134  if (vpp_ctx->va_context == VA_INVALID_ID)
135  return AVERROR(EINVAL);
136 
137  output_frame = ff_get_video_buffer(outlink, vpp_ctx->output_width,
138  vpp_ctx->output_height);
139  if (!output_frame) {
140  err = AVERROR(ENOMEM);
141  goto fail;
142  }
143 
144  err = av_frame_copy_props(output_frame, input_frame);
145  if (err < 0)
146  goto fail;
147 
148  err = ff_vaapi_vpp_init_params(avctx, &params,
149  input_frame, output_frame);
150  if (err < 0)
151  goto fail;
152 
153  params.rotation_state = ctx->rotation_state;
154  params.mirror_state = ctx->mirror_state;
155 
156  err = ff_vaapi_vpp_render_picture(avctx, &params, output_frame);
157  if (err < 0)
158  goto fail;
159 
160  av_frame_free(&input_frame);
161 
162  av_log(avctx, AV_LOG_DEBUG, "Filter output: %s, %ux%u (%"PRId64").\n",
163  av_get_pix_fmt_name(output_frame->format),
164  output_frame->width, output_frame->height, output_frame->pts);
165 
166  return ff_filter_frame(outlink, output_frame);
167 
168 fail:
169  av_frame_free(&input_frame);
170  av_frame_free(&output_frame);
171  return err;
172 }
173 
174  static av_cold int transpose_vaapi_init(AVFilterContext *avctx)
175 {
176  VAAPIVPPContext *vpp_ctx = avctx->priv;
177 
178  ff_vaapi_vpp_ctx_init(avctx);
179  vpp_ctx->pipeline_uninit = ff_vaapi_vpp_pipeline_uninit;
180  vpp_ctx->build_filter_params = transpose_vaapi_build_filter_params;
181  vpp_ctx->output_format = AV_PIX_FMT_NONE;
182 
183  return 0;
184 }
185 
186  static int transpose_vaapi_vpp_config_output(AVFilterLink *outlink)
187 {
188  AVFilterContext *avctx = outlink->src;
189  VAAPIVPPContext *vpp_ctx = avctx->priv;
190  TransposeVAAPIContext *ctx = avctx->priv;
191  AVFilterLink *inlink = avctx->inputs[0];
192 
193  if ((inlink->w >= inlink->h && ctx->passthrough == TRANSPOSE_PT_TYPE_LANDSCAPE) ||
194  (inlink->w <= inlink->h && ctx->passthrough == TRANSPOSE_PT_TYPE_PORTRAIT)) {
195  outlink->hw_frames_ctx = av_buffer_ref(inlink->hw_frames_ctx);
196  if (!outlink->hw_frames_ctx)
197  return AVERROR(ENOMEM);
198  av_log(avctx, AV_LOG_VERBOSE,
199  "w:%d h:%d -> w:%d h:%d (passthrough mode)\n",
200  inlink->w, inlink->h, inlink->w, inlink->h);
201  return 0;
202  }
203 
204  ctx->passthrough = TRANSPOSE_PT_TYPE_NONE;
205 
206  switch (ctx->dir) {
207  case TRANSPOSE_CCLOCK_FLIP:
208  case TRANSPOSE_CCLOCK:
209  case TRANSPOSE_CLOCK:
210  case TRANSPOSE_CLOCK_FLIP:
211  vpp_ctx->output_width = avctx->inputs[0]->h;
212  vpp_ctx->output_height = avctx->inputs[0]->w;
213  av_log(avctx, AV_LOG_DEBUG, "swap width and height for clock/cclock rotation\n");
214  break;
215  default:
216  break;
217  }
218 
219  return ff_vaapi_vpp_config_output(outlink);
220 }
221 
222  static AVFrame *get_video_buffer(AVFilterLink *inlink, int w, int h)
223 {
224  TransposeVAAPIContext *ctx = inlink->dst->priv;
225 
226  return ctx->passthrough ?
227  ff_null_get_video_buffer(inlink, w, h) :
228  ff_default_get_video_buffer(inlink, w, h);
229 }
230 
231  #define OFFSET(x) offsetof(TransposeVAAPIContext, x)
232  #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM)
233  static const AVOption transpose_vaapi_options[] = {
234  { "dir", "set transpose direction", OFFSET(dir), AV_OPT_TYPE_INT, { .i64 = TRANSPOSE_CCLOCK_FLIP }, 0, 6, FLAGS, "dir" },
235  { "cclock_flip", "rotate counter-clockwise with vertical flip", 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CCLOCK_FLIP }, .flags=FLAGS, .unit = "dir" },
236  { "clock", "rotate clockwise", 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CLOCK }, .flags=FLAGS, .unit = "dir" },
237  { "cclock", "rotate counter-clockwise", 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CCLOCK }, .flags=FLAGS, .unit = "dir" },
238  { "clock_flip", "rotate clockwise with vertical flip", 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CLOCK_FLIP }, .flags=FLAGS, .unit = "dir" },
239  { "reversal", "rotate by half-turn", 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_REVERSAL }, .flags=FLAGS, .unit = "dir" },
240  { "hflip", "flip horizontally", 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_HFLIP }, .flags=FLAGS, .unit = "dir" },
241  { "vflip", "flip vertically", 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_VFLIP }, .flags=FLAGS, .unit = "dir" },
242 
243  { "passthrough", "do not apply transposition if the input matches the specified geometry",
244  OFFSET(passthrough), AV_OPT_TYPE_INT, {.i64=TRANSPOSE_PT_TYPE_NONE}, 0, INT_MAX, FLAGS, "passthrough" },
245  { "none", "always apply transposition", 0, AV_OPT_TYPE_CONST, {.i64=TRANSPOSE_PT_TYPE_NONE}, INT_MIN, INT_MAX, FLAGS, "passthrough" },
246  { "portrait", "preserve portrait geometry", 0, AV_OPT_TYPE_CONST, {.i64=TRANSPOSE_PT_TYPE_PORTRAIT}, INT_MIN, INT_MAX, FLAGS, "passthrough" },
247  { "landscape", "preserve landscape geometry", 0, AV_OPT_TYPE_CONST, {.i64=TRANSPOSE_PT_TYPE_LANDSCAPE}, INT_MIN, INT_MAX, FLAGS, "passthrough" },
248 
249  { NULL }
250 };
251 
252 
253 AVFILTER_DEFINE_CLASS(transpose_vaapi);
254 
255  static const AVFilterPad transpose_vaapi_inputs[] = {
256  {
257  .name = "default",
258  .type = AVMEDIA_TYPE_VIDEO,
259  .filter_frame = &transpose_vaapi_filter_frame,
260  .get_buffer.video = get_video_buffer,
261  .config_props = &ff_vaapi_vpp_config_input,
262  },
263 };
264 
265  static const AVFilterPad transpose_vaapi_outputs[] = {
266  {
267  .name = "default",
268  .type = AVMEDIA_TYPE_VIDEO,
269  .config_props = &transpose_vaapi_vpp_config_output,
270  },
271 };
272 
273  const AVFilter ff_vf_transpose_vaapi = {
274  .name = "transpose_vaapi",
275  .description = NULL_IF_CONFIG_SMALL("VAAPI VPP for transpose"),
276  .priv_size = sizeof(TransposeVAAPIContext),
277  .init = &transpose_vaapi_init,
278  .uninit = &ff_vaapi_vpp_ctx_uninit,
279  FILTER_INPUTS(transpose_vaapi_inputs),
280  FILTER_OUTPUTS(transpose_vaapi_outputs),
281  FILTER_QUERY_FUNC(&ff_vaapi_vpp_query_formats),
282  .priv_class = &transpose_vaapi_class,
283  .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
284 };
ff_get_video_buffer
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:101
ff_vaapi_vpp_pipeline_uninit
void ff_vaapi_vpp_pipeline_uninit(AVFilterContext *avctx)
Definition: vaapi_vpp.c:44
ff_vaapi_vpp_ctx_init
void ff_vaapi_vpp_ctx_init(AVFilterContext *avctx)
Definition: vaapi_vpp.c:666
TransposeVAAPIContext::passthrough
int passthrough
Definition: vf_transpose_vaapi.c:31
AVERROR
Filter the word "frame" indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later. That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another. Frame references ownership and permissions
opt.h
ff_vaapi_vpp_render_picture
int ff_vaapi_vpp_render_picture(AVFilterContext *avctx, VAProcPipelineParameterBuffer *params, AVFrame *output_frame)
Definition: vaapi_vpp.c:592
FF_FILTER_FLAG_HWFRAME_AWARE
#define FF_FILTER_FLAG_HWFRAME_AWARE
The filter is aware of hardware frames, and any hardware frame context should not be automatically pr...
Definition: internal.h:370
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:999
inlink
The exact code depends on how similar the blocks are and how related they are to the and needs to apply these operations to the correct inlink or outlink if there are several Macros are available to factor that when no extra processing is inlink
Definition: filter_design.txt:212
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:111
TransposeVAAPIContext::rotation_state
int rotation_state
Definition: vf_transpose_vaapi.c:34
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:325
pixdesc.h
AVFrame::pts
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:432
AVFrame::width
int width
Definition: frame.h:397
w
uint8_t w
Definition: llviddspenc.c:38
AVOption
AVOption.
Definition: opt.h:251
FILTER_QUERY_FUNC
#define FILTER_QUERY_FUNC(func)
Definition: internal.h:167
AV_LOG_VERBOSE
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:196
AVVAAPIDeviceContext::display
VADisplay display
The VADisplay handle, to be filled by the user.
Definition: hwcontext_vaapi.h:72
TRANSPOSE_CLOCK_FLIP
@ TRANSPOSE_CLOCK_FLIP
Definition: transpose.h:34
av_buffer_ref
AVBufferRef * av_buffer_ref(const AVBufferRef *buf)
Create a new reference to an AVBuffer.
Definition: buffer.c:103
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:175
transpose_vaapi_inputs
static const AVFilterPad transpose_vaapi_inputs[]
Definition: vf_transpose_vaapi.c:255
formats.h
init
static int init
Definition: av_tx.c:47
VAAPIVPPContext::build_filter_params
int(* build_filter_params)(AVFilterContext *avctx)
Definition: vaapi_vpp.h:54
TRANSPOSE_CCLOCK
@ TRANSPOSE_CCLOCK
Definition: transpose.h:33
ff_default_get_video_buffer
AVFrame * ff_default_get_video_buffer(AVFilterLink *link, int w, int h)
Definition: video.c:96
TransposeVAAPIContext
Definition: vf_transpose_vaapi.c:29
AVFilterContext::priv
void * priv
private data for use by the filter
Definition: avfilter.h:423
fail
#define fail()
Definition: checkasm.h:131
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:49
FLAGS
#define FLAGS
Definition: vf_transpose_vaapi.c:232
TRANSPOSE_HFLIP
@ TRANSPOSE_HFLIP
Definition: transpose.h:36
TransposeVAAPIContext::mirror_state
int mirror_state
Definition: vf_transpose_vaapi.c:35
transpose_vaapi_filter_frame
static int transpose_vaapi_filter_frame(AVFilterLink *inlink, AVFrame *input_frame)
Definition: vf_transpose_vaapi.c:117
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:180
av_cold
#define av_cold
Definition: attributes.h:90
VAAPIVPPContext::output_width
int output_width
Definition: vaapi_vpp.h:48
AV_LOG_DEBUG
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:201
ctx
AVFormatContext * ctx
Definition: movenc.c:48
VAAPIVPPContext::output_format
enum AVPixelFormat output_format
Definition: vaapi_vpp.h:47
VAAPIVPPContext::hwctx
AVVAAPIDeviceContext * hwctx
Definition: vaapi_vpp.h:36
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:190
NULL
#define NULL
Definition: coverity.c:32
av_frame_copy_props
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:596
AVFilterContext::inputs
AVFilterLink ** inputs
array of pointers to input links
Definition: avfilter.h:416
ff_vaapi_vpp_config_input
int ff_vaapi_vpp_config_input(AVFilterLink *inlink)
Definition: vaapi_vpp.c:70
ff_vaapi_vpp_ctx_uninit
void ff_vaapi_vpp_ctx_uninit(AVFilterContext *avctx)
Definition: vaapi_vpp.c:680
TransposeVAAPIContext::vpp_ctx
VAAPIVPPContext vpp_ctx
Definition: vf_transpose_vaapi.c:30
ff_vaapi_vpp_query_formats
int ff_vaapi_vpp_query_formats(AVFilterContext *avctx)
Definition: vaapi_vpp.c:27
vaapi_vpp.h
TRANSPOSE_PT_TYPE_PORTRAIT
@ TRANSPOSE_PT_TYPE_PORTRAIT
Definition: transpose.h:27
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:117
TRANSPOSE_PT_TYPE_NONE
@ TRANSPOSE_PT_TYPE_NONE
Definition: transpose.h:25
AVFrame::format
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames,...
Definition: frame.h:412
TransposeVAAPIContext::dir
int dir
Definition: vf_transpose_vaapi.c:32
output_frame
static int output_frame(H264Context *h, AVFrame *dst, H264Picture *srcp)
Definition: h264dec.c:844
ff_null_get_video_buffer
AVFrame * ff_null_get_video_buffer(AVFilterLink *link, int w, int h)
Definition: video.c:36
internal.h
VAAPIVPPContext::output_height
int output_height
Definition: vaapi_vpp.h:49
TRANSPOSE_CLOCK
@ TRANSPOSE_CLOCK
Definition: transpose.h:32
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:55
AVFilter
Filter definition.
Definition: avfilter.h:171
transpose_vaapi_outputs
static const AVFilterPad transpose_vaapi_outputs[]
Definition: vf_transpose_vaapi.c:265
VAAPIVPPContext
Definition: vaapi_vpp.h:33
transpose_vaapi_build_filter_params
static int transpose_vaapi_build_filter_params(AVFilterContext *avctx)
Definition: vf_transpose_vaapi.c:38
VAAPIVPPContext::va_context
VAContextID va_context
Definition: vaapi_vpp.h:41
AVFrame::height
int height
Definition: frame.h:397
TRANSPOSE_CCLOCK_FLIP
@ TRANSPOSE_CCLOCK_FLIP
Definition: transpose.h:31
ff_vaapi_vpp_config_output
int ff_vaapi_vpp_config_output(AVFilterLink *outlink)
Definition: vaapi_vpp.c:95
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
avfilter.h
transpose.h
transpose_vaapi_init
static av_cold int transpose_vaapi_init(AVFilterContext *avctx)
Definition: vf_transpose_vaapi.c:174
VAAPIVPPContext::pipeline_uninit
void(* pipeline_uninit)(AVFilterContext *avctx)
Definition: vaapi_vpp.h:56
TRANSPOSE_REVERSAL
@ TRANSPOSE_REVERSAL
Definition: transpose.h:35
AVFilterContext
An instance of a filter.
Definition: avfilter.h:408
TRANSPOSE_PT_TYPE_LANDSCAPE
@ TRANSPOSE_PT_TYPE_LANDSCAPE
Definition: transpose.h:26
TRANSPOSE_VFLIP
@ TRANSPOSE_VFLIP
Definition: transpose.h:37
get_video_buffer
static AVFrame * get_video_buffer(AVFilterLink *inlink, int w, int h)
Definition: vf_transpose_vaapi.c:222
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
transpose_vaapi_options
static const AVOption transpose_vaapi_options[]
Definition: vf_transpose_vaapi.c:233
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:191
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(transpose_vaapi)
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:27
uninit
static av_cold int uninit(AVCodecContext *avctx)
Definition: crystalhd.c:285
h
h
Definition: vp9dsp_template.c:2038
transpose_vaapi_vpp_config_output
static int transpose_vaapi_vpp_config_output(AVFilterLink *outlink)
Definition: vf_transpose_vaapi.c:186
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:234
ff_vf_transpose_vaapi
const AVFilter ff_vf_transpose_vaapi
Definition: vf_transpose_vaapi.c:273
OFFSET
#define OFFSET(x)
Definition: vf_transpose_vaapi.c:231
av_get_pix_fmt_name
const char * av_get_pix_fmt_name(enum AVPixelFormat pix_fmt)
Return the short name for a pixel format, NULL in case pix_fmt is unknown.
Definition: pixdesc.c:2582
ff_vaapi_vpp_init_params
int ff_vaapi_vpp_init_params(AVFilterContext *avctx, VAProcPipelineParameterBuffer *params, const AVFrame *input_frame, AVFrame *output_frame)
Definition: vaapi_vpp.c:515
AVFilterContext::outputs
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:420
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