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 "formats.h"
26 #include "internal.h"
27 #include "scale_eval.h"
28 #include "video.h"
29 #include "vaapi_vpp.h"
30
31 typedef struct ScaleVAAPIContext {
32 VAAPIVPPContext vpp_ctx; // must be the first field
33
34 char *output_format_string;
35
36 int mode;
37
38 char *w_expr; // width expression string
39 char *h_expr; // height expression string
40
41 int force_original_aspect_ratio;
42 int force_divisible_by;
43
44 char *colour_primaries_string;
45 char *colour_transfer_string;
46 char *colour_matrix_string;
47 int colour_range;
48 char *chroma_location_string;
49
50 enum AVColorPrimaries colour_primaries;
51 enum AVColorTransferCharacteristic colour_transfer;
52 enum AVColorSpace colour_matrix;
53 enum AVChromaLocation chroma_location;
54 } ScaleVAAPIContext;
55
scale_vaapi_mode_name(int mode)56 static const char *scale_vaapi_mode_name(int mode)
57 {
58 switch (mode) {
59 #define D(name) case VA_FILTER_SCALING_ ## name: return #name
60 D(DEFAULT);
61 D(FAST);
62 D(HQ);
63 D(NL_ANAMORPHIC);
64 #undef D
65 default:
66 return "Invalid";
67 }
68 }
69
70
scale_vaapi_config_output(AVFilterLink * outlink)71 static int scale_vaapi_config_output(AVFilterLink *outlink)
72 {
73 AVFilterLink *inlink = outlink->src->inputs[0];
74 AVFilterContext *avctx = outlink->src;
75 VAAPIVPPContext *vpp_ctx = avctx->priv;
76 ScaleVAAPIContext *ctx = avctx->priv;
77 int err;
78
79 if ((err = ff_scale_eval_dimensions(ctx,
80 ctx->w_expr, ctx->h_expr,
81 inlink, outlink,
82 &vpp_ctx->output_width, &vpp_ctx->output_height)) < 0)
83 return err;
84
85 ff_scale_adjust_dimensions(inlink, &vpp_ctx->output_width, &vpp_ctx->output_height,
86 ctx->force_original_aspect_ratio, ctx->force_divisible_by);
87
88 err = ff_vaapi_vpp_config_output(outlink);
89 if (err < 0)
90 return err;
91
92 if (inlink->sample_aspect_ratio.num)
93 outlink->sample_aspect_ratio = av_mul_q((AVRational){outlink->h * inlink->w, outlink->w * inlink->h}, inlink->sample_aspect_ratio);
94 else
95 outlink->sample_aspect_ratio = inlink->sample_aspect_ratio;
96
97 return 0;
98 }
99
scale_vaapi_filter_frame(AVFilterLink * inlink,AVFrame * input_frame)100 static int scale_vaapi_filter_frame(AVFilterLink *inlink, AVFrame *input_frame)
101 {
102 AVFilterContext *avctx = inlink->dst;
103 AVFilterLink *outlink = avctx->outputs[0];
104 VAAPIVPPContext *vpp_ctx = avctx->priv;
105 ScaleVAAPIContext *ctx = avctx->priv;
106 AVFrame *output_frame = NULL;
107 VAProcPipelineParameterBuffer params;
108 int err;
109
110 av_log(avctx, AV_LOG_DEBUG, "Filter input: %s, %ux%u (%"PRId64").\n",
111 av_get_pix_fmt_name(input_frame->format),
112 input_frame->width, input_frame->height, input_frame->pts);
113
114 if (vpp_ctx->va_context == VA_INVALID_ID)
115 return AVERROR(EINVAL);
116
117 output_frame = ff_get_video_buffer(outlink, vpp_ctx->output_width,
118 vpp_ctx->output_height);
119 if (!output_frame) {
120 err = AVERROR(ENOMEM);
121 goto fail;
122 }
123
124 err = av_frame_copy_props(output_frame, input_frame);
125 if (err < 0)
126 goto fail;
127
128 if (ctx->colour_primaries != AVCOL_PRI_UNSPECIFIED)
129 output_frame->color_primaries = ctx->colour_primaries;
130 if (ctx->colour_transfer != AVCOL_TRC_UNSPECIFIED)
131 output_frame->color_trc = ctx->colour_transfer;
132 if (ctx->colour_matrix != AVCOL_SPC_UNSPECIFIED)
133 output_frame->colorspace = ctx->colour_matrix;
134 if (ctx->colour_range != AVCOL_RANGE_UNSPECIFIED)
135 output_frame->color_range = ctx->colour_range;
136 if (ctx->chroma_location != AVCHROMA_LOC_UNSPECIFIED)
137 output_frame->chroma_location = ctx->chroma_location;
138
139 err = ff_vaapi_vpp_init_params(avctx, ¶ms,
140 input_frame, output_frame);
141 if (err < 0)
142 goto fail;
143
144 params.filter_flags |= ctx->mode;
145
146 err = ff_vaapi_vpp_render_picture(avctx, ¶ms, output_frame);
147 if (err < 0)
148 goto fail;
149
150 av_frame_free(&input_frame);
151
152 av_log(avctx, AV_LOG_DEBUG, "Filter output: %s, %ux%u (%"PRId64"), mode: %s.\n",
153 av_get_pix_fmt_name(output_frame->format),
154 output_frame->width, output_frame->height, output_frame->pts,
155 scale_vaapi_mode_name(ctx->mode));
156
157 return ff_filter_frame(outlink, output_frame);
158
159 fail:
160 av_frame_free(&input_frame);
161 av_frame_free(&output_frame);
162 return err;
163 }
164
scale_vaapi_init(AVFilterContext * avctx)165 static av_cold int scale_vaapi_init(AVFilterContext *avctx)
166 {
167 VAAPIVPPContext *vpp_ctx = avctx->priv;
168 ScaleVAAPIContext *ctx = avctx->priv;
169
170 ff_vaapi_vpp_ctx_init(avctx);
171 vpp_ctx->pipeline_uninit = ff_vaapi_vpp_pipeline_uninit;
172
173 if (ctx->output_format_string) {
174 vpp_ctx->output_format = av_get_pix_fmt(ctx->output_format_string);
175 if (vpp_ctx->output_format == AV_PIX_FMT_NONE) {
176 av_log(avctx, AV_LOG_ERROR, "Invalid output format.\n");
177 return AVERROR(EINVAL);
178 }
179 } else {
180 // Use the input format once that is configured.
181 vpp_ctx->output_format = AV_PIX_FMT_NONE;
182 }
183
184 #define STRING_OPTION(var_name, func_name, default_value) do { \
185 if (ctx->var_name ## _string) { \
186 int var = av_ ## func_name ## _from_name(ctx->var_name ## _string); \
187 if (var < 0) { \
188 av_log(avctx, AV_LOG_ERROR, "Invalid %s.\n", #var_name); \
189 return AVERROR(EINVAL); \
190 } \
191 ctx->var_name = var; \
192 } else { \
193 ctx->var_name = default_value; \
194 } \
195 } while (0)
196
197 STRING_OPTION(colour_primaries, color_primaries, AVCOL_PRI_UNSPECIFIED);
198 STRING_OPTION(colour_transfer, color_transfer, AVCOL_TRC_UNSPECIFIED);
199 STRING_OPTION(colour_matrix, color_space, AVCOL_SPC_UNSPECIFIED);
200 STRING_OPTION(chroma_location, chroma_location, AVCHROMA_LOC_UNSPECIFIED);
201
202 return 0;
203 }
204
205 #define OFFSET(x) offsetof(ScaleVAAPIContext, x)
206 #define FLAGS (AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM)
207 static const AVOption scale_vaapi_options[] = {
208 { "w", "Output video width",
209 OFFSET(w_expr), AV_OPT_TYPE_STRING, {.str = "iw"}, .flags = FLAGS },
210 { "h", "Output video height",
211 OFFSET(h_expr), AV_OPT_TYPE_STRING, {.str = "ih"}, .flags = FLAGS },
212 { "format", "Output video format (software format of hardware frames)",
213 OFFSET(output_format_string), AV_OPT_TYPE_STRING, .flags = FLAGS },
214 { "mode", "Scaling mode",
215 OFFSET(mode), AV_OPT_TYPE_INT, { .i64 = VA_FILTER_SCALING_HQ },
216 0, VA_FILTER_SCALING_NL_ANAMORPHIC, FLAGS, "mode" },
217 { "default", "Use the default (depend on the driver) scaling algorithm",
218 0, AV_OPT_TYPE_CONST, { .i64 = VA_FILTER_SCALING_DEFAULT }, 0, 0, FLAGS, "mode" },
219 { "fast", "Use fast scaling algorithm",
220 0, AV_OPT_TYPE_CONST, { .i64 = VA_FILTER_SCALING_FAST }, 0, 0, FLAGS, "mode" },
221 { "hq", "Use high quality scaling algorithm",
222 0, AV_OPT_TYPE_CONST, { .i64 = VA_FILTER_SCALING_HQ }, 0, 0, FLAGS, "mode" },
223 { "nl_anamorphic", "Use nolinear anamorphic scaling algorithm",
224 0, AV_OPT_TYPE_CONST, { .i64 = VA_FILTER_SCALING_NL_ANAMORPHIC }, 0, 0, FLAGS, "mode" },
225
226 // These colour properties match the ones of the same name in vf_scale.
227 { "out_color_matrix", "Output colour matrix coefficient set",
228 OFFSET(colour_matrix_string), AV_OPT_TYPE_STRING, { .str = NULL }, .flags = FLAGS },
229 { "out_range", "Output colour range",
230 OFFSET(colour_range), AV_OPT_TYPE_INT, { .i64 = AVCOL_RANGE_UNSPECIFIED },
231 AVCOL_RANGE_UNSPECIFIED, AVCOL_RANGE_JPEG, FLAGS, "range" },
232 { "full", "Full range",
233 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_JPEG }, 0, 0, FLAGS, "range" },
234 { "limited", "Limited range",
235 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_MPEG }, 0, 0, FLAGS, "range" },
236 { "jpeg", "Full range",
237 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_JPEG }, 0, 0, FLAGS, "range" },
238 { "mpeg", "Limited range",
239 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_MPEG }, 0, 0, FLAGS, "range" },
240 { "tv", "Limited range",
241 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_MPEG }, 0, 0, FLAGS, "range" },
242 { "pc", "Full range",
243 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_JPEG }, 0, 0, FLAGS, "range" },
244 // These colour properties are new here.
245 { "out_color_primaries", "Output colour primaries",
246 OFFSET(colour_primaries_string), AV_OPT_TYPE_STRING,
247 { .str = NULL }, .flags = FLAGS },
248 { "out_color_transfer", "Output colour transfer characteristics",
249 OFFSET(colour_transfer_string), AV_OPT_TYPE_STRING,
250 { .str = NULL }, .flags = FLAGS },
251 { "out_chroma_location", "Output chroma sample location",
252 OFFSET(chroma_location_string), AV_OPT_TYPE_STRING,
253 { .str = NULL }, .flags = FLAGS },
254 { "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" },
255 { "disable", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 0 }, 0, 0, FLAGS, "force_oar" },
256 { "decrease", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 1 }, 0, 0, FLAGS, "force_oar" },
257 { "increase", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 2 }, 0, 0, FLAGS, "force_oar" },
258 { "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 },
259
260 { NULL },
261 };
262
263 AVFILTER_DEFINE_CLASS(scale_vaapi);
264
265 static const AVFilterPad scale_vaapi_inputs[] = {
266 {
267 .name = "default",
268 .type = AVMEDIA_TYPE_VIDEO,
269 .filter_frame = &scale_vaapi_filter_frame,
270 .config_props = &ff_vaapi_vpp_config_input,
271 },
272 };
273
274 static const AVFilterPad scale_vaapi_outputs[] = {
275 {
276 .name = "default",
277 .type = AVMEDIA_TYPE_VIDEO,
278 .config_props = &scale_vaapi_config_output,
279 },
280 };
281
282 const AVFilter ff_vf_scale_vaapi = {
283 .name = "scale_vaapi",
284 .description = NULL_IF_CONFIG_SMALL("Scale to/from VAAPI surfaces."),
285 .priv_size = sizeof(ScaleVAAPIContext),
286 .init = &scale_vaapi_init,
287 .uninit = &ff_vaapi_vpp_ctx_uninit,
288 FILTER_INPUTS(scale_vaapi_inputs),
289 FILTER_OUTPUTS(scale_vaapi_outputs),
290 FILTER_QUERY_FUNC(&ff_vaapi_vpp_query_formats),
291 .priv_class = &scale_vaapi_class,
292 .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
293 };
294