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![Matthieu Bouron](/assets/img/avatar_default.png)
* commit 'e3fb74f7f9a8f1895381355f40c92cac3c1023d9': lavfi: Always propagate hw_frames_ctx through links Merged-by: Matthieu Bouron <matthieu.bouron@gmail.com>
482 lines
15 KiB
C
482 lines
15 KiB
C
/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <string.h>
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#include <va/va.h>
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#include <va/va_vpp.h>
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#include "libavutil/avassert.h"
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#include "libavutil/hwcontext.h"
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#include "libavutil/hwcontext_vaapi.h"
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#include "libavutil/mem.h"
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#include "libavutil/opt.h"
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#include "libavutil/pixdesc.h"
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#include "avfilter.h"
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#include "formats.h"
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#include "internal.h"
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#include "scale.h"
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#include "video.h"
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typedef struct ScaleVAAPIContext {
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const AVClass *class;
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AVVAAPIDeviceContext *hwctx;
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AVBufferRef *device_ref;
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int valid_ids;
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VAConfigID va_config;
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VAContextID va_context;
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AVBufferRef *input_frames_ref;
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AVHWFramesContext *input_frames;
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AVBufferRef *output_frames_ref;
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AVHWFramesContext *output_frames;
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char *output_format_string;
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enum AVPixelFormat output_format;
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char *w_expr; // width expression string
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char *h_expr; // height expression string
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int output_width; // computed width
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int output_height; // computed height
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} ScaleVAAPIContext;
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static int scale_vaapi_query_formats(AVFilterContext *avctx)
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{
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enum AVPixelFormat pix_fmts[] = {
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AV_PIX_FMT_VAAPI, AV_PIX_FMT_NONE,
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};
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int err;
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if ((err = ff_formats_ref(ff_make_format_list(pix_fmts),
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&avctx->inputs[0]->out_formats)) < 0)
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return err;
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if ((err = ff_formats_ref(ff_make_format_list(pix_fmts),
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&avctx->outputs[0]->in_formats)) < 0)
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return err;
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return 0;
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}
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static int scale_vaapi_pipeline_uninit(ScaleVAAPIContext *ctx)
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{
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if (ctx->va_context != VA_INVALID_ID) {
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vaDestroyContext(ctx->hwctx->display, ctx->va_context);
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ctx->va_context = VA_INVALID_ID;
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}
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if (ctx->va_config != VA_INVALID_ID) {
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vaDestroyConfig(ctx->hwctx->display, ctx->va_config);
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ctx->va_config = VA_INVALID_ID;
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}
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av_buffer_unref(&ctx->output_frames_ref);
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av_buffer_unref(&ctx->device_ref);
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ctx->hwctx = 0;
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return 0;
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}
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static int scale_vaapi_config_input(AVFilterLink *inlink)
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{
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AVFilterContext *avctx = inlink->dst;
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ScaleVAAPIContext *ctx = avctx->priv;
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scale_vaapi_pipeline_uninit(ctx);
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if (!inlink->hw_frames_ctx) {
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av_log(avctx, AV_LOG_ERROR, "A hardware frames reference is "
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"required to associate the processing device.\n");
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return AVERROR(EINVAL);
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}
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ctx->input_frames_ref = av_buffer_ref(inlink->hw_frames_ctx);
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ctx->input_frames = (AVHWFramesContext*)ctx->input_frames_ref->data;
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return 0;
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}
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static int scale_vaapi_config_output(AVFilterLink *outlink)
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{
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AVFilterLink *inlink = outlink->src->inputs[0];
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AVFilterContext *avctx = outlink->src;
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ScaleVAAPIContext *ctx = avctx->priv;
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AVVAAPIHWConfig *hwconfig = NULL;
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AVHWFramesConstraints *constraints = NULL;
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AVVAAPIFramesContext *va_frames;
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VAStatus vas;
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int err, i;
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scale_vaapi_pipeline_uninit(ctx);
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ctx->device_ref = av_buffer_ref(ctx->input_frames->device_ref);
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ctx->hwctx = ((AVHWDeviceContext*)ctx->device_ref->data)->hwctx;
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av_assert0(ctx->va_config == VA_INVALID_ID);
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vas = vaCreateConfig(ctx->hwctx->display, VAProfileNone,
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VAEntrypointVideoProc, 0, 0, &ctx->va_config);
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if (vas != VA_STATUS_SUCCESS) {
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av_log(ctx, AV_LOG_ERROR, "Failed to create processing pipeline "
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"config: %d (%s).\n", vas, vaErrorStr(vas));
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err = AVERROR(EIO);
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goto fail;
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}
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hwconfig = av_hwdevice_hwconfig_alloc(ctx->device_ref);
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if (!hwconfig) {
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err = AVERROR(ENOMEM);
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goto fail;
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}
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hwconfig->config_id = ctx->va_config;
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constraints = av_hwdevice_get_hwframe_constraints(ctx->device_ref,
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hwconfig);
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if (!constraints) {
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err = AVERROR(ENOMEM);
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goto fail;
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}
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if (ctx->output_format == AV_PIX_FMT_NONE)
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ctx->output_format = ctx->input_frames->sw_format;
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if (constraints->valid_sw_formats) {
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for (i = 0; constraints->valid_sw_formats[i] != AV_PIX_FMT_NONE; i++) {
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if (ctx->output_format == constraints->valid_sw_formats[i])
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break;
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}
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if (constraints->valid_sw_formats[i] == AV_PIX_FMT_NONE) {
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av_log(ctx, AV_LOG_ERROR, "Hardware does not support output "
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"format %s.\n", av_get_pix_fmt_name(ctx->output_format));
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err = AVERROR(EINVAL);
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goto fail;
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}
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}
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if ((err = ff_scale_eval_dimensions(ctx,
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ctx->w_expr, ctx->h_expr,
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inlink, outlink,
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&ctx->output_width, &ctx->output_height)) < 0)
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goto fail;
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if (ctx->output_width < constraints->min_width ||
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ctx->output_height < constraints->min_height ||
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ctx->output_width > constraints->max_width ||
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ctx->output_height > constraints->max_height) {
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av_log(ctx, AV_LOG_ERROR, "Hardware does not support scaling to "
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"size %dx%d (constraints: width %d-%d height %d-%d).\n",
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ctx->output_width, ctx->output_height,
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constraints->min_width, constraints->max_width,
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constraints->min_height, constraints->max_height);
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err = AVERROR(EINVAL);
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goto fail;
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}
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ctx->output_frames_ref = av_hwframe_ctx_alloc(ctx->device_ref);
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if (!ctx->output_frames_ref) {
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av_log(ctx, AV_LOG_ERROR, "Failed to create HW frame context "
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"for output.\n");
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err = AVERROR(ENOMEM);
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goto fail;
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}
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ctx->output_frames = (AVHWFramesContext*)ctx->output_frames_ref->data;
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ctx->output_frames->format = AV_PIX_FMT_VAAPI;
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ctx->output_frames->sw_format = ctx->output_format;
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ctx->output_frames->width = ctx->output_width;
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ctx->output_frames->height = ctx->output_height;
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// The number of output frames we need is determined by what follows
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// the filter. If it's an encoder with complex frame reference
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// structures then this could be very high.
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ctx->output_frames->initial_pool_size = 10;
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err = av_hwframe_ctx_init(ctx->output_frames_ref);
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if (err < 0) {
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av_log(ctx, AV_LOG_ERROR, "Failed to initialise VAAPI frame "
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"context for output: %d\n", err);
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goto fail;
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}
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va_frames = ctx->output_frames->hwctx;
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av_assert0(ctx->va_context == VA_INVALID_ID);
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vas = vaCreateContext(ctx->hwctx->display, ctx->va_config,
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ctx->output_width, ctx->output_height,
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VA_PROGRESSIVE,
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va_frames->surface_ids, va_frames->nb_surfaces,
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&ctx->va_context);
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if (vas != VA_STATUS_SUCCESS) {
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av_log(ctx, AV_LOG_ERROR, "Failed to create processing pipeline "
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"context: %d (%s).\n", vas, vaErrorStr(vas));
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return AVERROR(EIO);
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}
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outlink->w = ctx->output_width;
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outlink->h = ctx->output_height;
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outlink->hw_frames_ctx = av_buffer_ref(ctx->output_frames_ref);
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if (!outlink->hw_frames_ctx) {
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err = AVERROR(ENOMEM);
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goto fail;
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}
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av_freep(&hwconfig);
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av_hwframe_constraints_free(&constraints);
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return 0;
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fail:
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av_buffer_unref(&ctx->output_frames_ref);
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av_freep(&hwconfig);
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av_hwframe_constraints_free(&constraints);
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return err;
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}
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static int vaapi_proc_colour_standard(enum AVColorSpace av_cs)
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{
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switch(av_cs) {
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#define CS(av, va) case AVCOL_SPC_ ## av: return VAProcColorStandard ## va;
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CS(BT709, BT709);
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CS(BT470BG, BT601);
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CS(SMPTE170M, SMPTE170M);
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CS(SMPTE240M, SMPTE240M);
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#undef CS
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default:
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return VAProcColorStandardNone;
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}
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}
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static int scale_vaapi_filter_frame(AVFilterLink *inlink, AVFrame *input_frame)
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{
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AVFilterContext *avctx = inlink->dst;
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AVFilterLink *outlink = avctx->outputs[0];
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ScaleVAAPIContext *ctx = avctx->priv;
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AVFrame *output_frame = NULL;
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VASurfaceID input_surface, output_surface;
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VAProcPipelineParameterBuffer params;
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VABufferID params_id;
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VARectangle input_region;
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VAStatus vas;
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int err;
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av_log(ctx, AV_LOG_DEBUG, "Filter input: %s, %ux%u (%"PRId64").\n",
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av_get_pix_fmt_name(input_frame->format),
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input_frame->width, input_frame->height, input_frame->pts);
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if (ctx->va_context == VA_INVALID_ID)
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return AVERROR(EINVAL);
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input_surface = (VASurfaceID)(uintptr_t)input_frame->data[3];
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av_log(ctx, AV_LOG_DEBUG, "Using surface %#x for scale input.\n",
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input_surface);
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output_frame = ff_get_video_buffer(outlink, ctx->output_width,
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ctx->output_height);
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if (!output_frame) {
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err = AVERROR(ENOMEM);
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goto fail;
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}
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output_surface = (VASurfaceID)(uintptr_t)output_frame->data[3];
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av_log(ctx, AV_LOG_DEBUG, "Using surface %#x for scale output.\n",
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output_surface);
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memset(¶ms, 0, sizeof(params));
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// If there were top/left cropping, it could be taken into
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// account here.
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input_region = (VARectangle) {
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.x = 0,
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.y = 0,
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.width = input_frame->width,
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.height = input_frame->height,
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};
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params.surface = input_surface;
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params.surface_region = &input_region;
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params.surface_color_standard =
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vaapi_proc_colour_standard(input_frame->colorspace);
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params.output_region = 0;
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params.output_background_color = 0xff000000;
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params.output_color_standard = params.surface_color_standard;
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params.pipeline_flags = 0;
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params.filter_flags = VA_FILTER_SCALING_HQ;
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vas = vaBeginPicture(ctx->hwctx->display,
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ctx->va_context, output_surface);
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if (vas != VA_STATUS_SUCCESS) {
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av_log(ctx, AV_LOG_ERROR, "Failed to attach new picture: "
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"%d (%s).\n", vas, vaErrorStr(vas));
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err = AVERROR(EIO);
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goto fail;
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}
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vas = vaCreateBuffer(ctx->hwctx->display, ctx->va_context,
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VAProcPipelineParameterBufferType,
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sizeof(params), 1, ¶ms, ¶ms_id);
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if (vas != VA_STATUS_SUCCESS) {
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av_log(ctx, AV_LOG_ERROR, "Failed to create parameter buffer: "
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"%d (%s).\n", vas, vaErrorStr(vas));
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err = AVERROR(EIO);
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goto fail_after_begin;
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}
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av_log(ctx, AV_LOG_DEBUG, "Pipeline parameter buffer is %#x.\n",
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params_id);
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vas = vaRenderPicture(ctx->hwctx->display, ctx->va_context,
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¶ms_id, 1);
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if (vas != VA_STATUS_SUCCESS) {
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av_log(ctx, AV_LOG_ERROR, "Failed to render parameter buffer: "
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"%d (%s).\n", vas, vaErrorStr(vas));
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err = AVERROR(EIO);
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goto fail_after_begin;
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}
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vas = vaEndPicture(ctx->hwctx->display, ctx->va_context);
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if (vas != VA_STATUS_SUCCESS) {
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av_log(ctx, AV_LOG_ERROR, "Failed to start picture processing: "
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"%d (%s).\n", vas, vaErrorStr(vas));
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err = AVERROR(EIO);
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goto fail_after_render;
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}
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if (ctx->hwctx->driver_quirks &
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AV_VAAPI_DRIVER_QUIRK_RENDER_PARAM_BUFFERS) {
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vas = vaDestroyBuffer(ctx->hwctx->display, params_id);
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if (vas != VA_STATUS_SUCCESS) {
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av_log(ctx, AV_LOG_ERROR, "Failed to free parameter buffer: "
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"%d (%s).\n", vas, vaErrorStr(vas));
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// And ignore.
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}
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}
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av_frame_copy_props(output_frame, input_frame);
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av_frame_free(&input_frame);
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av_log(ctx, AV_LOG_DEBUG, "Filter output: %s, %ux%u (%"PRId64").\n",
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av_get_pix_fmt_name(output_frame->format),
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output_frame->width, output_frame->height, output_frame->pts);
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return ff_filter_frame(outlink, output_frame);
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// We want to make sure that if vaBeginPicture has been called, we also
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// call vaRenderPicture and vaEndPicture. These calls may well fail or
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// do something else nasty, but once we're in this failure case there
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// isn't much else we can do.
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fail_after_begin:
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vaRenderPicture(ctx->hwctx->display, ctx->va_context, ¶ms_id, 1);
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fail_after_render:
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vaEndPicture(ctx->hwctx->display, ctx->va_context);
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fail:
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av_frame_free(&input_frame);
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av_frame_free(&output_frame);
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return err;
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}
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static av_cold int scale_vaapi_init(AVFilterContext *avctx)
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{
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ScaleVAAPIContext *ctx = avctx->priv;
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ctx->va_config = VA_INVALID_ID;
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ctx->va_context = VA_INVALID_ID;
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ctx->valid_ids = 1;
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if (ctx->output_format_string) {
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ctx->output_format = av_get_pix_fmt(ctx->output_format_string);
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if (ctx->output_format == AV_PIX_FMT_NONE) {
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av_log(ctx, AV_LOG_ERROR, "Invalid output format.\n");
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return AVERROR(EINVAL);
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}
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} else {
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// Use the input format once that is configured.
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ctx->output_format = AV_PIX_FMT_NONE;
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}
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return 0;
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}
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static av_cold void scale_vaapi_uninit(AVFilterContext *avctx)
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{
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ScaleVAAPIContext *ctx = avctx->priv;
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if (ctx->valid_ids)
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scale_vaapi_pipeline_uninit(ctx);
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av_buffer_unref(&ctx->input_frames_ref);
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av_buffer_unref(&ctx->output_frames_ref);
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av_buffer_unref(&ctx->device_ref);
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}
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#define OFFSET(x) offsetof(ScaleVAAPIContext, x)
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#define FLAGS (AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM)
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static const AVOption scale_vaapi_options[] = {
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{ "w", "Output video width",
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OFFSET(w_expr), AV_OPT_TYPE_STRING, {.str = "iw"}, .flags = FLAGS },
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{ "h", "Output video height",
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OFFSET(h_expr), AV_OPT_TYPE_STRING, {.str = "ih"}, .flags = FLAGS },
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{ "format", "Output video format (software format of hardware frames)",
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OFFSET(output_format_string), AV_OPT_TYPE_STRING, .flags = FLAGS },
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{ NULL },
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};
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static const AVClass scale_vaapi_class = {
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.class_name = "scale_vaapi",
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.item_name = av_default_item_name,
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.option = scale_vaapi_options,
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.version = LIBAVUTIL_VERSION_INT,
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};
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static const AVFilterPad scale_vaapi_inputs[] = {
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{
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.name = "default",
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.type = AVMEDIA_TYPE_VIDEO,
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.filter_frame = &scale_vaapi_filter_frame,
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.config_props = &scale_vaapi_config_input,
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},
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{ NULL }
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};
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static const AVFilterPad scale_vaapi_outputs[] = {
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{
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.name = "default",
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.type = AVMEDIA_TYPE_VIDEO,
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.config_props = &scale_vaapi_config_output,
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},
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{ NULL }
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};
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AVFilter ff_vf_scale_vaapi = {
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.name = "scale_vaapi",
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.description = NULL_IF_CONFIG_SMALL("Scale to/from VAAPI surfaces."),
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.priv_size = sizeof(ScaleVAAPIContext),
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.init = &scale_vaapi_init,
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.uninit = &scale_vaapi_uninit,
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.query_formats = &scale_vaapi_query_formats,
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.inputs = scale_vaapi_inputs,
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.outputs = scale_vaapi_outputs,
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.priv_class = &scale_vaapi_class,
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.flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
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};
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