| /* |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include <string.h> |
| |
| #include "libavutil/avassert.h" |
| #include "libavutil/mem.h" |
| #include "libavutil/opt.h" |
| #include "libavutil/pixdesc.h" |
| |
| #include "avfilter.h" |
| #include "formats.h" |
| #include "internal.h" |
| #include "scale.h" |
| #include "video.h" |
| #include "vaapi_vpp.h" |
| |
| typedef struct ScaleVAAPIContext { |
| VAAPIVPPContext vpp_ctx; // must be the first field |
| |
| char *output_format_string; |
| |
| char *w_expr; // width expression string |
| char *h_expr; // height expression string |
| } ScaleVAAPIContext; |
| |
| static int scale_vaapi_config_output(AVFilterLink *outlink) |
| { |
| AVFilterLink *inlink = outlink->src->inputs[0]; |
| AVFilterContext *avctx = outlink->src; |
| VAAPIVPPContext *vpp_ctx = avctx->priv; |
| ScaleVAAPIContext *ctx = avctx->priv; |
| int err; |
| |
| if ((err = ff_scale_eval_dimensions(ctx, |
| ctx->w_expr, ctx->h_expr, |
| inlink, outlink, |
| &vpp_ctx->output_width, &vpp_ctx->output_height)) < 0) |
| return err; |
| |
| err = ff_vaapi_vpp_config_output(outlink); |
| if (err < 0) |
| return err; |
| |
| if (inlink->sample_aspect_ratio.num) |
| outlink->sample_aspect_ratio = av_mul_q((AVRational){outlink->h * inlink->w, outlink->w * inlink->h}, inlink->sample_aspect_ratio); |
| else |
| outlink->sample_aspect_ratio = inlink->sample_aspect_ratio; |
| |
| return 0; |
| } |
| |
| static int scale_vaapi_filter_frame(AVFilterLink *inlink, AVFrame *input_frame) |
| { |
| AVFilterContext *avctx = inlink->dst; |
| AVFilterLink *outlink = avctx->outputs[0]; |
| VAAPIVPPContext *vpp_ctx = avctx->priv; |
| AVFrame *output_frame = NULL; |
| VASurfaceID input_surface, output_surface; |
| VAProcPipelineParameterBuffer params; |
| VARectangle input_region; |
| int err; |
| |
| av_log(avctx, AV_LOG_DEBUG, "Filter input: %s, %ux%u (%"PRId64").\n", |
| av_get_pix_fmt_name(input_frame->format), |
| input_frame->width, input_frame->height, input_frame->pts); |
| |
| if (vpp_ctx->va_context == VA_INVALID_ID) |
| return AVERROR(EINVAL); |
| |
| input_surface = (VASurfaceID)(uintptr_t)input_frame->data[3]; |
| av_log(avctx, AV_LOG_DEBUG, "Using surface %#x for scale input.\n", |
| input_surface); |
| |
| output_frame = ff_get_video_buffer(outlink, vpp_ctx->output_width, |
| vpp_ctx->output_height); |
| if (!output_frame) { |
| err = AVERROR(ENOMEM); |
| goto fail; |
| } |
| |
| output_surface = (VASurfaceID)(uintptr_t)output_frame->data[3]; |
| av_log(avctx, AV_LOG_DEBUG, "Using surface %#x for scale output.\n", |
| output_surface); |
| |
| memset(¶ms, 0, sizeof(params)); |
| |
| input_region = (VARectangle) { |
| .x = input_frame->crop_left, |
| .y = input_frame->crop_top, |
| .width = input_frame->width - |
| (input_frame->crop_left + input_frame->crop_right), |
| .height = input_frame->height - |
| (input_frame->crop_top + input_frame->crop_bottom), |
| }; |
| |
| params.surface = input_surface; |
| params.surface_region = &input_region; |
| params.surface_color_standard = |
| ff_vaapi_vpp_colour_standard(input_frame->colorspace); |
| |
| params.output_region = 0; |
| params.output_background_color = 0xff000000; |
| params.output_color_standard = params.surface_color_standard; |
| |
| params.pipeline_flags = 0; |
| params.filter_flags = VA_FILTER_SCALING_HQ; |
| |
| err = ff_vaapi_vpp_render_picture(avctx, ¶ms, output_surface); |
| if (err < 0) |
| goto fail; |
| |
| err = av_frame_copy_props(output_frame, input_frame); |
| if (err < 0) |
| goto fail; |
| |
| av_frame_free(&input_frame); |
| |
| av_log(avctx, AV_LOG_DEBUG, "Filter output: %s, %ux%u (%"PRId64").\n", |
| av_get_pix_fmt_name(output_frame->format), |
| output_frame->width, output_frame->height, output_frame->pts); |
| |
| return ff_filter_frame(outlink, output_frame); |
| |
| fail: |
| av_frame_free(&input_frame); |
| av_frame_free(&output_frame); |
| return err; |
| } |
| |
| static av_cold int scale_vaapi_init(AVFilterContext *avctx) |
| { |
| VAAPIVPPContext *vpp_ctx = avctx->priv; |
| ScaleVAAPIContext *ctx = avctx->priv; |
| |
| ff_vaapi_vpp_ctx_init(avctx); |
| vpp_ctx->pipeline_uninit = ff_vaapi_vpp_pipeline_uninit; |
| |
| if (ctx->output_format_string) { |
| vpp_ctx->output_format = av_get_pix_fmt(ctx->output_format_string); |
| if (vpp_ctx->output_format == AV_PIX_FMT_NONE) { |
| av_log(avctx, AV_LOG_ERROR, "Invalid output format.\n"); |
| return AVERROR(EINVAL); |
| } |
| } else { |
| // Use the input format once that is configured. |
| vpp_ctx->output_format = AV_PIX_FMT_NONE; |
| } |
| |
| return 0; |
| } |
| |
| #define OFFSET(x) offsetof(ScaleVAAPIContext, x) |
| #define FLAGS (AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM) |
| static const AVOption scale_vaapi_options[] = { |
| { "w", "Output video width", |
| OFFSET(w_expr), AV_OPT_TYPE_STRING, {.str = "iw"}, .flags = FLAGS }, |
| { "h", "Output video height", |
| OFFSET(h_expr), AV_OPT_TYPE_STRING, {.str = "ih"}, .flags = FLAGS }, |
| { "format", "Output video format (software format of hardware frames)", |
| OFFSET(output_format_string), AV_OPT_TYPE_STRING, .flags = FLAGS }, |
| { NULL }, |
| }; |
| |
| AVFILTER_DEFINE_CLASS(scale_vaapi); |
| |
| static const AVFilterPad scale_vaapi_inputs[] = { |
| { |
| .name = "default", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .filter_frame = &scale_vaapi_filter_frame, |
| .config_props = &ff_vaapi_vpp_config_input, |
| }, |
| { NULL } |
| }; |
| |
| static const AVFilterPad scale_vaapi_outputs[] = { |
| { |
| .name = "default", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .config_props = &scale_vaapi_config_output, |
| }, |
| { NULL } |
| }; |
| |
| AVFilter ff_vf_scale_vaapi = { |
| .name = "scale_vaapi", |
| .description = NULL_IF_CONFIG_SMALL("Scale to/from VAAPI surfaces."), |
| .priv_size = sizeof(ScaleVAAPIContext), |
| .init = &scale_vaapi_init, |
| .uninit = &ff_vaapi_vpp_ctx_uninit, |
| .query_formats = &ff_vaapi_vpp_query_formats, |
| .inputs = scale_vaapi_inputs, |
| .outputs = scale_vaapi_outputs, |
| .priv_class = &scale_vaapi_class, |
| .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE, |
| }; |