FFmpeg
vf_scale_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 
19 #include <string.h>
20 
21 #include "libavutil/avassert.h"
22 #include "libavutil/mem.h"
23 #include "libavutil/opt.h"
24 #include "libavutil/pixdesc.h"
25 
26 #include "avfilter.h"
27 #include "formats.h"
28 #include "internal.h"
29 #include "scale_eval.h"
30 #include "video.h"
31 #include "vaapi_vpp.h"
32 
33 typedef struct ScaleVAAPIContext {
34  VAAPIVPPContext vpp_ctx; // must be the first field
35 
37 
38  int mode;
39 
40  char *w_expr; // width expression string
41  char *h_expr; // height expression string
42 
45 
51 
57 
58 static const char *scale_vaapi_mode_name(int mode)
59 {
60  switch (mode) {
61 #define D(name) case VA_FILTER_SCALING_ ## name: return #name
62  D(DEFAULT);
63  D(FAST);
64  D(HQ);
65  D(NL_ANAMORPHIC);
66 #undef D
67  default:
68  return "Invalid";
69  }
70 }
71 
72 
74 {
75  AVFilterLink *inlink = outlink->src->inputs[0];
76  AVFilterContext *avctx = outlink->src;
77  VAAPIVPPContext *vpp_ctx = avctx->priv;
78  ScaleVAAPIContext *ctx = avctx->priv;
79  int err;
80 
81  if ((err = ff_scale_eval_dimensions(ctx,
82  ctx->w_expr, ctx->h_expr,
83  inlink, outlink,
84  &vpp_ctx->output_width, &vpp_ctx->output_height)) < 0)
85  return err;
86 
88  ctx->force_original_aspect_ratio, ctx->force_divisible_by);
89 
90  err = ff_vaapi_vpp_config_output(outlink);
91  if (err < 0)
92  return err;
93 
94  if (inlink->sample_aspect_ratio.num)
95  outlink->sample_aspect_ratio = av_mul_q((AVRational){outlink->h * inlink->w, outlink->w * inlink->h}, inlink->sample_aspect_ratio);
96  else
97  outlink->sample_aspect_ratio = inlink->sample_aspect_ratio;
98 
99  return 0;
100 }
101 
103 {
104  AVFilterContext *avctx = inlink->dst;
105  AVFilterLink *outlink = avctx->outputs[0];
106  VAAPIVPPContext *vpp_ctx = avctx->priv;
107  ScaleVAAPIContext *ctx = avctx->priv;
109  VAProcPipelineParameterBuffer params;
110  int err;
111 
112  av_log(avctx, AV_LOG_DEBUG, "Filter input: %s, %ux%u (%"PRId64").\n",
113  av_get_pix_fmt_name(input_frame->format),
114  input_frame->width, input_frame->height, input_frame->pts);
115 
116  if (vpp_ctx->va_context == VA_INVALID_ID)
117  return AVERROR(EINVAL);
118 
119  output_frame = ff_get_video_buffer(outlink, vpp_ctx->output_width,
120  vpp_ctx->output_height);
121  if (!output_frame) {
122  err = AVERROR(ENOMEM);
123  goto fail;
124  }
125 
126  err = av_frame_copy_props(output_frame, input_frame);
127  if (err < 0)
128  goto fail;
129 
130  if (ctx->colour_primaries != AVCOL_PRI_UNSPECIFIED)
131  output_frame->color_primaries = ctx->colour_primaries;
132  if (ctx->colour_transfer != AVCOL_TRC_UNSPECIFIED)
133  output_frame->color_trc = ctx->colour_transfer;
134  if (ctx->colour_matrix != AVCOL_SPC_UNSPECIFIED)
135  output_frame->colorspace = ctx->colour_matrix;
136  if (ctx->colour_range != AVCOL_RANGE_UNSPECIFIED)
137  output_frame->color_range = ctx->colour_range;
138  if (ctx->chroma_location != AVCHROMA_LOC_UNSPECIFIED)
139  output_frame->chroma_location = ctx->chroma_location;
140 
141  err = ff_vaapi_vpp_init_params(avctx, &params,
142  input_frame, output_frame);
143  if (err < 0)
144  goto fail;
145 
146  params.filter_flags |= ctx->mode;
147 
148  err = ff_vaapi_vpp_render_picture(avctx, &params, output_frame);
149  if (err < 0)
150  goto fail;
151 
152  av_frame_free(&input_frame);
153 
154  av_log(avctx, AV_LOG_DEBUG, "Filter output: %s, %ux%u (%"PRId64"), mode: %s.\n",
156  output_frame->width, output_frame->height, output_frame->pts,
157  scale_vaapi_mode_name(ctx->mode));
158 
159  return ff_filter_frame(outlink, output_frame);
160 
161 fail:
162  av_frame_free(&input_frame);
164  return err;
165 }
166 
168 {
169  VAAPIVPPContext *vpp_ctx = avctx->priv;
170  ScaleVAAPIContext *ctx = avctx->priv;
171 
172  ff_vaapi_vpp_ctx_init(avctx);
174 
175  if (ctx->output_format_string) {
176  vpp_ctx->output_format = av_get_pix_fmt(ctx->output_format_string);
177  if (vpp_ctx->output_format == AV_PIX_FMT_NONE) {
178  av_log(avctx, AV_LOG_ERROR, "Invalid output format.\n");
179  return AVERROR(EINVAL);
180  }
181  } else {
182  // Use the input format once that is configured.
183  vpp_ctx->output_format = AV_PIX_FMT_NONE;
184  }
185 
186 #define STRING_OPTION(var_name, func_name, default_value) do { \
187  if (ctx->var_name ## _string) { \
188  int var = av_ ## func_name ## _from_name(ctx->var_name ## _string); \
189  if (var < 0) { \
190  av_log(avctx, AV_LOG_ERROR, "Invalid %s.\n", #var_name); \
191  return AVERROR(EINVAL); \
192  } \
193  ctx->var_name = var; \
194  } else { \
195  ctx->var_name = default_value; \
196  } \
197  } while (0)
198 
200  STRING_OPTION(colour_transfer, color_transfer, AVCOL_TRC_UNSPECIFIED);
201  STRING_OPTION(colour_matrix, color_space, AVCOL_SPC_UNSPECIFIED);
202  STRING_OPTION(chroma_location, chroma_location, AVCHROMA_LOC_UNSPECIFIED);
203 
204  return 0;
205 }
206 
207 #define OFFSET(x) offsetof(ScaleVAAPIContext, x)
208 #define FLAGS (AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM)
209 static const AVOption scale_vaapi_options[] = {
210  { "w", "Output video width",
211  OFFSET(w_expr), AV_OPT_TYPE_STRING, {.str = "iw"}, .flags = FLAGS },
212  { "h", "Output video height",
213  OFFSET(h_expr), AV_OPT_TYPE_STRING, {.str = "ih"}, .flags = FLAGS },
214  { "format", "Output video format (software format of hardware frames)",
215  OFFSET(output_format_string), AV_OPT_TYPE_STRING, .flags = FLAGS },
216  { "mode", "Scaling mode",
217  OFFSET(mode), AV_OPT_TYPE_INT, { .i64 = VA_FILTER_SCALING_HQ },
218  0, VA_FILTER_SCALING_NL_ANAMORPHIC, FLAGS, "mode" },
219  { "default", "Use the default (depend on the driver) scaling algorithm",
220  0, AV_OPT_TYPE_CONST, { .i64 = VA_FILTER_SCALING_DEFAULT }, 0, 0, FLAGS, "mode" },
221  { "fast", "Use fast scaling algorithm",
222  0, AV_OPT_TYPE_CONST, { .i64 = VA_FILTER_SCALING_FAST }, 0, 0, FLAGS, "mode" },
223  { "hq", "Use high quality scaling algorithm",
224  0, AV_OPT_TYPE_CONST, { .i64 = VA_FILTER_SCALING_HQ }, 0, 0, FLAGS, "mode" },
225  { "nl_anamorphic", "Use nolinear anamorphic scaling algorithm",
226  0, AV_OPT_TYPE_CONST, { .i64 = VA_FILTER_SCALING_NL_ANAMORPHIC }, 0, 0, FLAGS, "mode" },
227 
228  // These colour properties match the ones of the same name in vf_scale.
229  { "out_color_matrix", "Output colour matrix coefficient set",
230  OFFSET(colour_matrix_string), AV_OPT_TYPE_STRING, { .str = NULL }, .flags = FLAGS },
231  { "out_range", "Output colour range",
232  OFFSET(colour_range), AV_OPT_TYPE_INT, { .i64 = AVCOL_RANGE_UNSPECIFIED },
234  { "full", "Full range",
235  0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_JPEG }, 0, 0, FLAGS, "range" },
236  { "limited", "Limited range",
237  0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_MPEG }, 0, 0, FLAGS, "range" },
238  { "jpeg", "Full range",
239  0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_JPEG }, 0, 0, FLAGS, "range" },
240  { "mpeg", "Limited range",
241  0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_MPEG }, 0, 0, FLAGS, "range" },
242  { "tv", "Limited range",
243  0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_MPEG }, 0, 0, FLAGS, "range" },
244  { "pc", "Full range",
245  0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_JPEG }, 0, 0, FLAGS, "range" },
246  // These colour properties are new here.
247  { "out_color_primaries", "Output colour primaries",
248  OFFSET(colour_primaries_string), AV_OPT_TYPE_STRING,
249  { .str = NULL }, .flags = FLAGS },
250  { "out_color_transfer", "Output colour transfer characteristics",
251  OFFSET(colour_transfer_string), AV_OPT_TYPE_STRING,
252  { .str = NULL }, .flags = FLAGS },
253  { "out_chroma_location", "Output chroma sample location",
254  OFFSET(chroma_location_string), AV_OPT_TYPE_STRING,
255  { .str = NULL }, .flags = FLAGS },
256  { "force_original_aspect_ratio", "decrease or increase w/h if necessary to keep the original AR", OFFSET(force_original_aspect_ratio), AV_OPT_TYPE_INT, { .i64 = 0}, 0, 2, FLAGS, "force_oar" },
257  { "disable", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 0 }, 0, 0, FLAGS, "force_oar" },
258  { "decrease", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 1 }, 0, 0, FLAGS, "force_oar" },
259  { "increase", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 2 }, 0, 0, FLAGS, "force_oar" },
260  { "force_divisible_by", "enforce that the output resolution is divisible by a defined integer when force_original_aspect_ratio is used", OFFSET(force_divisible_by), AV_OPT_TYPE_INT, { .i64 = 1}, 1, 256, FLAGS },
261 
262  { NULL },
263 };
264 
265 AVFILTER_DEFINE_CLASS(scale_vaapi);
266 
267 static const AVFilterPad scale_vaapi_inputs[] = {
268  {
269  .name = "default",
270  .type = AVMEDIA_TYPE_VIDEO,
271  .filter_frame = &scale_vaapi_filter_frame,
272  .config_props = &ff_vaapi_vpp_config_input,
273  },
274  { NULL }
275 };
276 
278  {
279  .name = "default",
280  .type = AVMEDIA_TYPE_VIDEO,
281  .config_props = &scale_vaapi_config_output,
282  },
283  { NULL }
284 };
285 
287  .name = "scale_vaapi",
288  .description = NULL_IF_CONFIG_SMALL("Scale to/from VAAPI surfaces."),
289  .priv_size = sizeof(ScaleVAAPIContext),
295  .priv_class = &scale_vaapi_class,
296  .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
297 };
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:99
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
init
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.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
AVColorTransferCharacteristic
AVColorTransferCharacteristic
Color Transfer Characteristic.
Definition: pixfmt.h:473
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:339
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:978
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
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:303
pixdesc.h
AVFrame::pts
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:396
AVFrame::width
int width
Definition: frame.h:361
ScaleVAAPIContext::colour_transfer_string
char * colour_transfer_string
Definition: vf_scale_vaapi.c:47
AVCOL_RANGE_JPEG
@ AVCOL_RANGE_JPEG
Full range content.
Definition: pixfmt.h:576
AVOption
AVOption.
Definition: opt.h:248
AVCOL_TRC_UNSPECIFIED
@ AVCOL_TRC_UNSPECIFIED
Definition: pixfmt.h:476
ff_scale_eval_dimensions
int ff_scale_eval_dimensions(void *log_ctx, const char *w_expr, const char *h_expr, AVFilterLink *inlink, AVFilterLink *outlink, int *ret_w, int *ret_h)
Parse and evaluate string expressions for width and height.
Definition: scale_eval.c:57
STRING_OPTION
#define STRING_OPTION(var_name, func_name, default_value)
ScaleVAAPIContext::colour_primaries
enum AVColorPrimaries colour_primaries
Definition: vf_scale_vaapi.c:52
AVColorPrimaries
AVColorPrimaries
Chromaticity coordinates of the source primaries.
Definition: pixfmt.h:448
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:149
ScaleVAAPIContext::colour_primaries_string
char * colour_primaries_string
Definition: vf_scale_vaapi.c:46
video.h
formats.h
ScaleVAAPIContext::mode
int mode
Definition: vf_scale_vaapi.c:38
AVFilterContext::priv
void * priv
private data for use by the filter
Definition: avfilter.h:348
fail
#define fail()
Definition: checkasm.h:134
ScaleVAAPIContext::vpp_ctx
VAAPIVPPContext vpp_ctx
Definition: vf_scale_vaapi.c:34
ScaleVAAPIContext::force_divisible_by
int force_divisible_by
Definition: vf_scale_vaapi.c:44
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:54
avassert.h
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:181
av_cold
#define av_cold
Definition: attributes.h:90
inputs
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several inputs
Definition: filter_design.txt:243
outputs
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
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:202
D
#define D(name)
ctx
AVFormatContext * ctx
Definition: movenc.c:48
VAAPIVPPContext::output_format
enum AVPixelFormat output_format
Definition: vaapi_vpp.h:47
scale_vaapi_mode_name
static const char * scale_vaapi_mode_name(int mode)
Definition: vf_scale_vaapi.c:58
AVCOL_PRI_UNSPECIFIED
@ AVCOL_PRI_UNSPECIFIED
Definition: pixfmt.h:451
ScaleVAAPIContext::colour_range
int colour_range
Definition: vf_scale_vaapi.c:49
ScaleVAAPIContext::chroma_location
enum AVChromaLocation chroma_location
Definition: vf_scale_vaapi.c:55
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:536
AVRational
Rational number (pair of numerator and denominator).
Definition: rational.h:58
AVFilterContext::inputs
AVFilterLink ** inputs
array of pointers to input links
Definition: avfilter.h:341
scale_vaapi_inputs
static const AVFilterPad scale_vaapi_inputs[]
Definition: vf_scale_vaapi.c:267
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
AVCOL_RANGE_UNSPECIFIED
@ AVCOL_RANGE_UNSPECIFIED
Definition: pixfmt.h:542
ScaleVAAPIContext::output_format_string
char * output_format_string
Definition: vf_scale_vaapi.c:36
ff_vaapi_vpp_query_formats
int ff_vaapi_vpp_query_formats(AVFilterContext *avctx)
Definition: vaapi_vpp.c:27
ff_vf_scale_vaapi
const AVFilter ff_vf_scale_vaapi
Definition: vf_scale_vaapi.c:286
vaapi_vpp.h
ScaleVAAPIContext::colour_transfer
enum AVColorTransferCharacteristic colour_transfer
Definition: vf_scale_vaapi.c:53
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
scale_vaapi_config_output
static int scale_vaapi_config_output(AVFilterLink *outlink)
Definition: vf_scale_vaapi.c:73
OFFSET
#define OFFSET(x)
Definition: vf_scale_vaapi.c:207
AVCHROMA_LOC_UNSPECIFIED
@ AVCHROMA_LOC_UNSPECIFIED
Definition: pixfmt.h:596
ScaleVAAPIContext::colour_matrix
enum AVColorSpace colour_matrix
Definition: vf_scale_vaapi.c:54
AVFrame::format
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames,...
Definition: frame.h:376
scale_vaapi_filter_frame
static int scale_vaapi_filter_frame(AVFilterLink *inlink, AVFrame *input_frame)
Definition: vf_scale_vaapi.c:102
scale_eval.h
output_frame
static int output_frame(H264Context *h, AVFrame *dst, H264Picture *srcp)
Definition: h264dec.c:824
internal.h
AVChromaLocation
AVChromaLocation
Location of chroma samples.
Definition: pixfmt.h:595
ScaleVAAPIContext::h_expr
char * h_expr
Definition: vf_scale_vaapi.c:41
VAAPIVPPContext::output_height
int output_height
Definition: vaapi_vpp.h:49
scale_vaapi_init
static av_cold int scale_vaapi_init(AVFilterContext *avctx)
Definition: vf_scale_vaapi.c:167
ScaleVAAPIContext::force_original_aspect_ratio
int force_original_aspect_ratio
Definition: vf_scale_vaapi.c:43
AVColorSpace
AVColorSpace
YUV colorspace type.
Definition: pixfmt.h:502
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(scale_vaapi)
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:60
AVCOL_SPC_UNSPECIFIED
@ AVCOL_SPC_UNSPECIFIED
Definition: pixfmt.h:505
AVCOL_RANGE_MPEG
@ AVCOL_RANGE_MPEG
Narrow or limited range content.
Definition: pixfmt.h:559
scale_vaapi_options
static const AVOption scale_vaapi_options[]
Definition: vf_scale_vaapi.c:209
AVFilter
Filter definition.
Definition: avfilter.h:145
VAAPIVPPContext
Definition: vaapi_vpp.h:33
VAAPIVPPContext::va_context
VAContextID va_context
Definition: vaapi_vpp.h:41
ff_scale_adjust_dimensions
int ff_scale_adjust_dimensions(AVFilterLink *inlink, int *ret_w, int *ret_h, int force_original_aspect_ratio, int force_divisible_by)
Transform evaluated width and height obtained from ff_scale_eval_dimensions into actual target width ...
Definition: scale_eval.c:113
av_get_pix_fmt
enum AVPixelFormat av_get_pix_fmt(const char *name)
Return the pixel format corresponding to name.
Definition: pixdesc.c:2473
scale_vaapi_outputs
static const AVFilterPad scale_vaapi_outputs[]
Definition: vf_scale_vaapi.c:277
AVFrame::height
int height
Definition: frame.h:361
ff_vaapi_vpp_config_output
int ff_vaapi_vpp_config_output(AVFilterLink *outlink)
Definition: vaapi_vpp.c:95
mode
mode
Definition: ebur128.h:83
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
ScaleVAAPIContext::w_expr
char * w_expr
Definition: vf_scale_vaapi.c:40
ScaleVAAPIContext::chroma_location_string
char * chroma_location_string
Definition: vf_scale_vaapi.c:50
VAAPIVPPContext::pipeline_uninit
void(* pipeline_uninit)(AVFilterContext *avctx)
Definition: vaapi_vpp.h:56
av_mul_q
AVRational av_mul_q(AVRational b, AVRational c)
Multiply two rationals.
Definition: rational.c:80
AVFilterContext
An instance of a filter.
Definition: avfilter.h:333
ScaleVAAPIContext
Definition: vf_scale_vaapi.c:33
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
mem.h
DEFAULT
#define DEFAULT
Definition: avdct.c:28
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: aeval.c:244
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:28
uninit
static av_cold int uninit(AVCodecContext *avctx)
Definition: crystalhd.c:279
AV_OPT_TYPE_STRING
@ AV_OPT_TYPE_STRING
Definition: opt.h:229
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:234
color_primaries
static const struct ColorPrimaries color_primaries[AVCOL_PRI_NB]
Definition: vf_colorspace.c:211
FLAGS
#define FLAGS
Definition: vf_scale_vaapi.c:208
ScaleVAAPIContext::colour_matrix_string
char * colour_matrix_string
Definition: vf_scale_vaapi.c:48
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:2461
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:345