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/opt.h"
22 #include "libavutil/pixdesc.h"
23 
24 #include "avfilter.h"
25 #include "internal.h"
26 #include "scale_eval.h"
27 #include "video.h"
28 #include "vaapi_vpp.h"
29 
30 typedef struct ScaleVAAPIContext {
31  VAAPIVPPContext vpp_ctx; // must be the first field
32 
34 
35  int mode;
36 
37  char *w_expr; // width expression string
38  char *h_expr; // height expression string
39 
42 
48 
54 
55 static const char *scale_vaapi_mode_name(int mode)
56 {
57  switch (mode) {
58 #define D(name) case VA_FILTER_SCALING_ ## name: return #name
59  D(DEFAULT);
60  D(FAST);
61  D(HQ);
62  D(NL_ANAMORPHIC);
63 #undef D
64  default:
65  return "Invalid";
66  }
67 }
68 
69 
71 {
72  AVFilterLink *inlink = outlink->src->inputs[0];
73  AVFilterContext *avctx = outlink->src;
74  VAAPIVPPContext *vpp_ctx = avctx->priv;
75  ScaleVAAPIContext *ctx = avctx->priv;
76  int err;
77 
78  if ((err = ff_scale_eval_dimensions(ctx,
79  ctx->w_expr, ctx->h_expr,
80  inlink, outlink,
81  &vpp_ctx->output_width, &vpp_ctx->output_height)) < 0)
82  return err;
83 
85  ctx->force_original_aspect_ratio, ctx->force_divisible_by);
86 
87  if (inlink->w == vpp_ctx->output_width && inlink->h == vpp_ctx->output_height &&
88  (vpp_ctx->input_frames->sw_format == vpp_ctx->output_format ||
89  vpp_ctx->output_format == AV_PIX_FMT_NONE) &&
90  ctx->colour_primaries == AVCOL_PRI_UNSPECIFIED &&
91  ctx->colour_transfer == AVCOL_TRC_UNSPECIFIED &&
92  ctx->colour_matrix == AVCOL_SPC_UNSPECIFIED &&
93  ctx->colour_range == AVCOL_RANGE_UNSPECIFIED &&
94  ctx->chroma_location == AVCHROMA_LOC_UNSPECIFIED)
95  vpp_ctx->passthrough = 1;
96 
97  err = ff_vaapi_vpp_config_output(outlink);
98  if (err < 0)
99  return err;
100 
101  if (inlink->sample_aspect_ratio.num)
102  outlink->sample_aspect_ratio = av_mul_q((AVRational){outlink->h * inlink->w, outlink->w * inlink->h}, inlink->sample_aspect_ratio);
103  else
104  outlink->sample_aspect_ratio = inlink->sample_aspect_ratio;
105 
106  return 0;
107 }
108 
110 {
111  AVFilterContext *avctx = inlink->dst;
112  AVFilterLink *outlink = avctx->outputs[0];
113  VAAPIVPPContext *vpp_ctx = avctx->priv;
114  ScaleVAAPIContext *ctx = avctx->priv;
116  VAProcPipelineParameterBuffer params;
117  int err;
118 
119  av_log(avctx, AV_LOG_DEBUG, "Filter input: %s, %ux%u (%"PRId64").\n",
120  av_get_pix_fmt_name(input_frame->format),
121  input_frame->width, input_frame->height, input_frame->pts);
122 
123  if (vpp_ctx->passthrough)
124  return ff_filter_frame(outlink, input_frame);
125 
126  if (vpp_ctx->va_context == VA_INVALID_ID)
127  return AVERROR(EINVAL);
128 
129  output_frame = ff_get_video_buffer(outlink, vpp_ctx->output_width,
130  vpp_ctx->output_height);
131  if (!output_frame) {
132  err = AVERROR(ENOMEM);
133  goto fail;
134  }
135 
136  err = av_frame_copy_props(output_frame, input_frame);
137  if (err < 0)
138  goto fail;
139 
140  if (ctx->colour_primaries != AVCOL_PRI_UNSPECIFIED)
141  output_frame->color_primaries = ctx->colour_primaries;
142  if (ctx->colour_transfer != AVCOL_TRC_UNSPECIFIED)
143  output_frame->color_trc = ctx->colour_transfer;
144  if (ctx->colour_matrix != AVCOL_SPC_UNSPECIFIED)
145  output_frame->colorspace = ctx->colour_matrix;
146  if (ctx->colour_range != AVCOL_RANGE_UNSPECIFIED)
147  output_frame->color_range = ctx->colour_range;
148  if (ctx->chroma_location != AVCHROMA_LOC_UNSPECIFIED)
149  output_frame->chroma_location = ctx->chroma_location;
150 
151  err = ff_vaapi_vpp_init_params(avctx, &params,
152  input_frame, output_frame);
153  if (err < 0)
154  goto fail;
155 
156  params.filter_flags |= ctx->mode;
157 
158  err = ff_vaapi_vpp_render_picture(avctx, &params, output_frame);
159  if (err < 0)
160  goto fail;
161 
162  av_frame_free(&input_frame);
163 
164  av_log(avctx, AV_LOG_DEBUG, "Filter output: %s, %ux%u (%"PRId64"), mode: %s.\n",
166  output_frame->width, output_frame->height, output_frame->pts,
167  scale_vaapi_mode_name(ctx->mode));
168 
169  return ff_filter_frame(outlink, output_frame);
170 
171 fail:
172  av_frame_free(&input_frame);
174  return err;
175 }
176 
178 {
179  VAAPIVPPContext *vpp_ctx = avctx->priv;
180  ScaleVAAPIContext *ctx = avctx->priv;
181 
182  ff_vaapi_vpp_ctx_init(avctx);
184 
185  if (ctx->output_format_string) {
186  vpp_ctx->output_format = av_get_pix_fmt(ctx->output_format_string);
187  if (vpp_ctx->output_format == AV_PIX_FMT_NONE) {
188  av_log(avctx, AV_LOG_ERROR, "Invalid output format.\n");
189  return AVERROR(EINVAL);
190  }
191  } else {
192  // Use the input format once that is configured.
193  vpp_ctx->output_format = AV_PIX_FMT_NONE;
194  }
195 
196 #define STRING_OPTION(var_name, func_name, default_value) do { \
197  if (ctx->var_name ## _string) { \
198  int var = av_ ## func_name ## _from_name(ctx->var_name ## _string); \
199  if (var < 0) { \
200  av_log(avctx, AV_LOG_ERROR, "Invalid %s.\n", #var_name); \
201  return AVERROR(EINVAL); \
202  } \
203  ctx->var_name = var; \
204  } else { \
205  ctx->var_name = default_value; \
206  } \
207  } while (0)
208 
210  STRING_OPTION(colour_transfer, color_transfer, AVCOL_TRC_UNSPECIFIED);
211  STRING_OPTION(colour_matrix, color_space, AVCOL_SPC_UNSPECIFIED);
212  STRING_OPTION(chroma_location, chroma_location, AVCHROMA_LOC_UNSPECIFIED);
213 
214  return 0;
215 }
216 
217 #define OFFSET(x) offsetof(ScaleVAAPIContext, x)
218 #define FLAGS (AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM)
219 static const AVOption scale_vaapi_options[] = {
220  { "w", "Output video width",
221  OFFSET(w_expr), AV_OPT_TYPE_STRING, {.str = "iw"}, .flags = FLAGS },
222  { "h", "Output video height",
223  OFFSET(h_expr), AV_OPT_TYPE_STRING, {.str = "ih"}, .flags = FLAGS },
224  { "format", "Output video format (software format of hardware frames)",
225  OFFSET(output_format_string), AV_OPT_TYPE_STRING, .flags = FLAGS },
226  { "mode", "Scaling mode",
227  OFFSET(mode), AV_OPT_TYPE_INT, { .i64 = VA_FILTER_SCALING_HQ },
228  0, VA_FILTER_SCALING_NL_ANAMORPHIC, FLAGS, .unit = "mode" },
229  { "default", "Use the default (depend on the driver) scaling algorithm",
230  0, AV_OPT_TYPE_CONST, { .i64 = VA_FILTER_SCALING_DEFAULT }, 0, 0, FLAGS, .unit = "mode" },
231  { "fast", "Use fast scaling algorithm",
232  0, AV_OPT_TYPE_CONST, { .i64 = VA_FILTER_SCALING_FAST }, 0, 0, FLAGS, .unit = "mode" },
233  { "hq", "Use high quality scaling algorithm",
234  0, AV_OPT_TYPE_CONST, { .i64 = VA_FILTER_SCALING_HQ }, 0, 0, FLAGS, .unit = "mode" },
235  { "nl_anamorphic", "Use nolinear anamorphic scaling algorithm",
236  0, AV_OPT_TYPE_CONST, { .i64 = VA_FILTER_SCALING_NL_ANAMORPHIC }, 0, 0, FLAGS, .unit = "mode" },
237 
238  // These colour properties match the ones of the same name in vf_scale.
239  { "out_color_matrix", "Output colour matrix coefficient set",
240  OFFSET(colour_matrix_string), AV_OPT_TYPE_STRING, { .str = NULL }, .flags = FLAGS },
241  { "out_range", "Output colour range",
242  OFFSET(colour_range), AV_OPT_TYPE_INT, { .i64 = AVCOL_RANGE_UNSPECIFIED },
243  AVCOL_RANGE_UNSPECIFIED, AVCOL_RANGE_JPEG, FLAGS, .unit = "range" },
244  { "full", "Full range",
245  0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_JPEG }, 0, 0, FLAGS, .unit = "range" },
246  { "limited", "Limited range",
247  0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_MPEG }, 0, 0, FLAGS, .unit = "range" },
248  { "jpeg", "Full range",
249  0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_JPEG }, 0, 0, FLAGS, .unit = "range" },
250  { "mpeg", "Limited range",
251  0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_MPEG }, 0, 0, FLAGS, .unit = "range" },
252  { "tv", "Limited range",
253  0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_MPEG }, 0, 0, FLAGS, .unit = "range" },
254  { "pc", "Full range",
255  0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_JPEG }, 0, 0, FLAGS, .unit = "range" },
256  // These colour properties are new here.
257  { "out_color_primaries", "Output colour primaries",
258  OFFSET(colour_primaries_string), AV_OPT_TYPE_STRING,
259  { .str = NULL }, .flags = FLAGS },
260  { "out_color_transfer", "Output colour transfer characteristics",
261  OFFSET(colour_transfer_string), AV_OPT_TYPE_STRING,
262  { .str = NULL }, .flags = FLAGS },
263  { "out_chroma_location", "Output chroma sample location",
264  OFFSET(chroma_location_string), AV_OPT_TYPE_STRING,
265  { .str = NULL }, .flags = FLAGS },
266  { "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, .unit = "force_oar" },
267  { "disable", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 0 }, 0, 0, FLAGS, .unit = "force_oar" },
268  { "decrease", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 1 }, 0, 0, FLAGS, .unit = "force_oar" },
269  { "increase", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 2 }, 0, 0, FLAGS, .unit = "force_oar" },
270  { "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 },
271 
272  { NULL },
273 };
274 
275 AVFILTER_DEFINE_CLASS(scale_vaapi);
276 
277 static const AVFilterPad scale_vaapi_inputs[] = {
278  {
279  .name = "default",
280  .type = AVMEDIA_TYPE_VIDEO,
281  .filter_frame = &scale_vaapi_filter_frame,
282  .config_props = &ff_vaapi_vpp_config_input,
283  },
284 };
285 
287  {
288  .name = "default",
289  .type = AVMEDIA_TYPE_VIDEO,
290  .config_props = &scale_vaapi_config_output,
291  },
292 };
293 
295  .name = "scale_vaapi",
296  .description = NULL_IF_CONFIG_SMALL("Scale to/from VAAPI surfaces."),
297  .priv_size = sizeof(ScaleVAAPIContext),
303  .priv_class = &scale_vaapi_class,
304  .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
305 };
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:112
ff_vaapi_vpp_pipeline_uninit
void ff_vaapi_vpp_pipeline_uninit(AVFilterContext *avctx)
Definition: vaapi_vpp.c:49
ff_vaapi_vpp_ctx_init
void ff_vaapi_vpp_ctx_init(AVFilterContext *avctx)
Definition: vaapi_vpp.c:715
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:580
ff_vaapi_vpp_render_picture
int ff_vaapi_vpp_render_picture(AVFilterContext *avctx, VAProcPipelineParameterBuffer *params, AVFrame *output_frame)
Definition: vaapi_vpp.c:708
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:351
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1015
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:160
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:374
pixdesc.h
AVFrame::pts
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:486
AVFrame::width
int width
Definition: frame.h:446
ScaleVAAPIContext::colour_transfer_string
char * colour_transfer_string
Definition: vf_scale_vaapi.c:44
AVCOL_RANGE_JPEG
@ AVCOL_RANGE_JPEG
Full range content.
Definition: pixfmt.h:686
AVOption
AVOption.
Definition: opt.h:357
VAAPIVPPContext::input_frames
AVHWFramesContext * input_frames
Definition: vaapi_vpp.h:49
AVCOL_TRC_UNSPECIFIED
@ AVCOL_TRC_UNSPECIFIED
Definition: pixfmt.h:583
FILTER_QUERY_FUNC
#define FILTER_QUERY_FUNC(func)
Definition: internal.h:159
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:49
AVColorPrimaries
AVColorPrimaries
Chromaticity coordinates of the source primaries.
Definition: pixfmt.h:555
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:170
ScaleVAAPIContext::colour_primaries_string
char * colour_primaries_string
Definition: vf_scale_vaapi.c:43
video.h
ScaleVAAPIContext::mode
int mode
Definition: vf_scale_vaapi.c:35
AVFilterContext::priv
void * priv
private data for use by the filter
Definition: avfilter.h:422
fail
#define fail()
Definition: checkasm.h:185
ScaleVAAPIContext::vpp_ctx
VAAPIVPPContext vpp_ctx
Definition: vf_scale_vaapi.c:31
ScaleVAAPIContext::force_divisible_by
int force_divisible_by
Definition: vf_scale_vaapi.c:41
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:33
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:53
AV_LOG_DEBUG
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:201
D
#define D(name)
ctx
AVFormatContext * ctx
Definition: movenc.c:49
VAAPIVPPContext::output_format
enum AVPixelFormat output_format
Definition: vaapi_vpp.h:52
scale_vaapi_mode_name
static const char * scale_vaapi_mode_name(int mode)
Definition: vf_scale_vaapi.c:55
AVCOL_PRI_UNSPECIFIED
@ AVCOL_PRI_UNSPECIFIED
Definition: pixfmt.h:558
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:182
ScaleVAAPIContext::colour_range
int colour_range
Definition: vf_scale_vaapi.c:46
ScaleVAAPIContext::chroma_location
enum AVChromaLocation chroma_location
Definition: vf_scale_vaapi.c:52
NULL
#define NULL
Definition: coverity.c:32
AVHWFramesContext::sw_format
enum AVPixelFormat sw_format
The pixel format identifying the actual data layout of the hardware frames.
Definition: hwcontext.h:210
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:709
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:415
scale_vaapi_inputs
static const AVFilterPad scale_vaapi_inputs[]
Definition: vf_scale_vaapi.c:277
ff_vaapi_vpp_config_input
int ff_vaapi_vpp_config_input(AVFilterLink *inlink)
Definition: vaapi_vpp.c:75
ff_vaapi_vpp_ctx_uninit
void ff_vaapi_vpp_ctx_uninit(AVFilterContext *avctx)
Definition: vaapi_vpp.c:729
AVCOL_RANGE_UNSPECIFIED
@ AVCOL_RANGE_UNSPECIFIED
Definition: pixfmt.h:652
ScaleVAAPIContext::output_format_string
char * output_format_string
Definition: vf_scale_vaapi.c:33
ff_vaapi_vpp_query_formats
int ff_vaapi_vpp_query_formats(AVFilterContext *avctx)
Definition: vaapi_vpp.c:28
color_primaries
static const AVColorPrimariesDesc color_primaries[AVCOL_PRI_NB]
Definition: csp.c:76
ff_vf_scale_vaapi
const AVFilter ff_vf_scale_vaapi
Definition: vf_scale_vaapi.c:294
vaapi_vpp.h
ScaleVAAPIContext::colour_transfer
enum AVColorTransferCharacteristic colour_transfer
Definition: vf_scale_vaapi.c:50
init
int(* init)(AVBSFContext *ctx)
Definition: dts2pts.c:366
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:94
scale_vaapi_config_output
static int scale_vaapi_config_output(AVFilterLink *outlink)
Definition: vf_scale_vaapi.c:70
OFFSET
#define OFFSET(x)
Definition: vf_scale_vaapi.c:217
AVCHROMA_LOC_UNSPECIFIED
@ AVCHROMA_LOC_UNSPECIFIED
Definition: pixfmt.h:706
ScaleVAAPIContext::colour_matrix
enum AVColorSpace colour_matrix
Definition: vf_scale_vaapi.c:51
AVFrame::format
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames,...
Definition: frame.h:461
scale_vaapi_filter_frame
static int scale_vaapi_filter_frame(AVFilterLink *inlink, AVFrame *input_frame)
Definition: vf_scale_vaapi.c:109
scale_eval.h
output_frame
static int output_frame(H264Context *h, AVFrame *dst, H264Picture *srcp)
Definition: h264dec.c:875
internal.h
AVChromaLocation
AVChromaLocation
Location of chroma samples.
Definition: pixfmt.h:705
ScaleVAAPIContext::h_expr
char * h_expr
Definition: vf_scale_vaapi.c:38
VAAPIVPPContext::output_height
int output_height
Definition: vaapi_vpp.h:54
uninit
static void uninit(AVBSFContext *ctx)
Definition: pcm_rechunk.c:68
scale_vaapi_init
static av_cold int scale_vaapi_init(AVFilterContext *avctx)
Definition: vf_scale_vaapi.c:177
FAST
@ FAST
Definition: vf_guided.c:33
ScaleVAAPIContext::force_original_aspect_ratio
int force_original_aspect_ratio
Definition: vf_scale_vaapi.c:40
AVColorSpace
AVColorSpace
YUV colorspace type.
Definition: pixfmt.h:609
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(scale_vaapi)
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:39
AVCOL_SPC_UNSPECIFIED
@ AVCOL_SPC_UNSPECIFIED
Definition: pixfmt.h:612
AVCOL_RANGE_MPEG
@ AVCOL_RANGE_MPEG
Narrow or limited range content.
Definition: pixfmt.h:669
scale_vaapi_options
static const AVOption scale_vaapi_options[]
Definition: vf_scale_vaapi.c:219
AVFilter
Filter definition.
Definition: avfilter.h:166
VAAPIVPPContext
Definition: vaapi_vpp.h:38
VAAPIVPPContext::va_context
VAContextID va_context
Definition: vaapi_vpp.h:46
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:2897
scale_vaapi_outputs
static const AVFilterPad scale_vaapi_outputs[]
Definition: vf_scale_vaapi.c:286
AVFrame::height
int height
Definition: frame.h:446
ff_vaapi_vpp_config_output
int ff_vaapi_vpp_config_output(AVFilterLink *outlink)
Definition: vaapi_vpp.c:100
mode
mode
Definition: ebur128.h:83
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:72
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:245
avfilter.h
ScaleVAAPIContext::w_expr
char * w_expr
Definition: vf_scale_vaapi.c:37
ScaleVAAPIContext::chroma_location_string
char * chroma_location_string
Definition: vf_scale_vaapi.c:47
VAAPIVPPContext::passthrough
int passthrough
Definition: vaapi_vpp.h:59
VAAPIVPPContext::pipeline_uninit
void(* pipeline_uninit)(AVFilterContext *avctx)
Definition: vaapi_vpp.h:63
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:407
ScaleVAAPIContext
Definition: vf_scale_vaapi.c:30
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
DEFAULT
#define DEFAULT
Definition: avdct.c:29
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:183
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:27
AV_OPT_TYPE_STRING
@ AV_OPT_TYPE_STRING
Definition: opt.h:249
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:254
FLAGS
#define FLAGS
Definition: vf_scale_vaapi.c:218
ScaleVAAPIContext::colour_matrix_string
char * colour_matrix_string
Definition: vf_scale_vaapi.c:45
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:2885
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:534
AVFilterContext::outputs
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:419