mirror of https://git.videolan.org/git/ffmpeg.git
430 lines
14 KiB
C
430 lines
14 KiB
C
/*
|
|
* 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/opt.h"
|
|
#include "libavutil/pixdesc.h"
|
|
|
|
#include "avfilter.h"
|
|
#include "framesync.h"
|
|
#include "internal.h"
|
|
#include "vaapi_vpp.h"
|
|
#include "video.h"
|
|
#include "libavutil/eval.h"
|
|
|
|
enum var_name {
|
|
VAR_MAIN_IW, VAR_MW,
|
|
VAR_MAIN_IH, VAR_MH,
|
|
VAR_OVERLAY_IW,
|
|
VAR_OVERLAY_IH,
|
|
VAR_OVERLAY_X, VAR_OX,
|
|
VAR_OVERLAY_Y, VAR_OY,
|
|
VAR_OVERLAY_W, VAR_OW,
|
|
VAR_OVERLAY_H, VAR_OH,
|
|
VAR_VARS_NB
|
|
};
|
|
|
|
typedef struct OverlayVAAPIContext {
|
|
VAAPIVPPContext vpp_ctx; /**< must be the first field */
|
|
FFFrameSync fs;
|
|
|
|
double var_values[VAR_VARS_NB];
|
|
char *overlay_ox;
|
|
char *overlay_oy;
|
|
char *overlay_ow;
|
|
char *overlay_oh;
|
|
int ox;
|
|
int oy;
|
|
int ow;
|
|
int oh;
|
|
float alpha;
|
|
unsigned int blend_flags;
|
|
float blend_alpha;
|
|
} OverlayVAAPIContext;
|
|
|
|
static const char *const var_names[] = {
|
|
"main_w", "W", /* input width of the main layer */
|
|
"main_h", "H", /* input height of the main layer */
|
|
"overlay_iw", /* input width of the overlay layer */
|
|
"overlay_ih", /* input height of the overlay layer */
|
|
"overlay_x", "x", /* x position of the overlay layer inside of main */
|
|
"overlay_y", "y", /* y position of the overlay layer inside of main */
|
|
"overlay_w", "w", /* output width of overlay layer */
|
|
"overlay_h", "h", /* output height of overlay layer */
|
|
NULL
|
|
};
|
|
|
|
static int eval_expr(AVFilterContext *avctx)
|
|
{
|
|
OverlayVAAPIContext *ctx = avctx->priv;
|
|
double *var_values = ctx->var_values;
|
|
int ret = 0;
|
|
AVExpr *ox_expr = NULL, *oy_expr = NULL;
|
|
AVExpr *ow_expr = NULL, *oh_expr = NULL;
|
|
|
|
#define PARSE_EXPR(e, s) {\
|
|
ret = av_expr_parse(&(e), s, var_names, NULL, NULL, NULL, NULL, 0, ctx); \
|
|
if (ret < 0) {\
|
|
av_log(ctx, AV_LOG_ERROR, "Error when parsing '%s'.\n", s);\
|
|
goto release;\
|
|
}\
|
|
}
|
|
PARSE_EXPR(ox_expr, ctx->overlay_ox)
|
|
PARSE_EXPR(oy_expr, ctx->overlay_oy)
|
|
PARSE_EXPR(ow_expr, ctx->overlay_ow)
|
|
PARSE_EXPR(oh_expr, ctx->overlay_oh)
|
|
#undef PASS_EXPR
|
|
|
|
var_values[VAR_OVERLAY_W] =
|
|
var_values[VAR_OW] = av_expr_eval(ow_expr, var_values, NULL);
|
|
var_values[VAR_OVERLAY_H] =
|
|
var_values[VAR_OH] = av_expr_eval(oh_expr, var_values, NULL);
|
|
|
|
/* calc again in case ow is relative to oh */
|
|
var_values[VAR_OVERLAY_W] =
|
|
var_values[VAR_OW] = av_expr_eval(ow_expr, var_values, NULL);
|
|
|
|
var_values[VAR_OVERLAY_X] =
|
|
var_values[VAR_OX] = av_expr_eval(ox_expr, var_values, NULL);
|
|
var_values[VAR_OVERLAY_Y] =
|
|
var_values[VAR_OY] = av_expr_eval(oy_expr, var_values, NULL);
|
|
|
|
/* calc again in case ox is relative to oy */
|
|
var_values[VAR_OVERLAY_X] =
|
|
var_values[VAR_OX] = av_expr_eval(ox_expr, var_values, NULL);
|
|
|
|
/* calc overlay_w and overlay_h again incase relative to ox,oy */
|
|
var_values[VAR_OVERLAY_W] =
|
|
var_values[VAR_OW] = av_expr_eval(ow_expr, var_values, NULL);
|
|
var_values[VAR_OVERLAY_H] =
|
|
var_values[VAR_OH] = av_expr_eval(oh_expr, var_values, NULL);
|
|
var_values[VAR_OVERLAY_W] =
|
|
var_values[VAR_OW] = av_expr_eval(ow_expr, var_values, NULL);
|
|
|
|
release:
|
|
av_expr_free(ox_expr);
|
|
av_expr_free(oy_expr);
|
|
av_expr_free(ow_expr);
|
|
av_expr_free(oh_expr);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int overlay_vaapi_build_filter_params(AVFilterContext *avctx)
|
|
{
|
|
VAAPIVPPContext *vpp_ctx = avctx->priv;
|
|
VAStatus vas;
|
|
int support_flag;
|
|
VAProcPipelineCaps pipeline_caps;
|
|
|
|
memset(&pipeline_caps, 0, sizeof(pipeline_caps));
|
|
vas = vaQueryVideoProcPipelineCaps(vpp_ctx->hwctx->display,
|
|
vpp_ctx->va_context,
|
|
NULL, 0,
|
|
&pipeline_caps);
|
|
if (vas != VA_STATUS_SUCCESS) {
|
|
av_log(avctx, AV_LOG_ERROR, "Failed to query pipeline "
|
|
"caps: %d (%s).\n", vas, vaErrorStr(vas));
|
|
return AVERROR(EIO);
|
|
}
|
|
|
|
if (!pipeline_caps.blend_flags) {
|
|
av_log(avctx, AV_LOG_ERROR, "VAAPI driver doesn't support overlay\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
support_flag = pipeline_caps.blend_flags & VA_BLEND_GLOBAL_ALPHA;
|
|
if (!support_flag) {
|
|
av_log(avctx, AV_LOG_ERROR, "VAAPI driver doesn't support global alpha blending\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int overlay_vaapi_blend(FFFrameSync *fs)
|
|
{
|
|
AVFilterContext *avctx = fs->parent;
|
|
AVFilterLink *outlink = avctx->outputs[0];
|
|
OverlayVAAPIContext *ctx = avctx->priv;
|
|
VAAPIVPPContext *vpp_ctx = avctx->priv;
|
|
AVFrame *input_main, *input_overlay;
|
|
AVFrame *output;
|
|
VAProcPipelineParameterBuffer params[2];
|
|
VABlendState blend_state = { 0 }; /**< Blend State */
|
|
VARectangle overlay_region, output_region;
|
|
int err;
|
|
|
|
err = ff_framesync_get_frame(fs, 0, &input_main, 0);
|
|
if (err < 0)
|
|
return err;
|
|
err = ff_framesync_get_frame(fs, 1, &input_overlay, 0);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
av_log(avctx, AV_LOG_DEBUG, "Filter main: %s, %ux%u (%"PRId64").\n",
|
|
av_get_pix_fmt_name(input_main->format),
|
|
input_main->width, input_main->height, input_main->pts);
|
|
|
|
if (vpp_ctx->va_context == VA_INVALID_ID)
|
|
return AVERROR(EINVAL);
|
|
|
|
output = ff_get_video_buffer(outlink, outlink->w, outlink->h);
|
|
if (!output) {
|
|
err = AVERROR(ENOMEM);
|
|
goto fail;
|
|
}
|
|
|
|
err = av_frame_copy_props(output, input_main);
|
|
if (err < 0)
|
|
goto fail;
|
|
|
|
err = ff_vaapi_vpp_init_params(avctx, ¶ms[0],
|
|
input_main, output);
|
|
if (err < 0)
|
|
goto fail;
|
|
|
|
output_region = (VARectangle) {
|
|
.x = 0,
|
|
.y = 0,
|
|
.width = output->width,
|
|
.height = output->height,
|
|
};
|
|
|
|
params[0].output_region = &output_region;
|
|
params[0].output_background_color = VAAPI_VPP_BACKGROUND_BLACK;
|
|
|
|
if (input_overlay) {
|
|
av_log(avctx, AV_LOG_DEBUG, "Filter overlay: %s, %ux%u (%"PRId64").\n",
|
|
av_get_pix_fmt_name(input_overlay->format),
|
|
input_overlay->width, input_overlay->height, input_overlay->pts);
|
|
|
|
overlay_region = (VARectangle) {
|
|
.x = ctx->ox,
|
|
.y = ctx->oy,
|
|
.width = ctx->ow ? ctx->ow : input_overlay->width,
|
|
.height = ctx->oh ? ctx->oh : input_overlay->height,
|
|
};
|
|
|
|
if (overlay_region.x + overlay_region.width > input_main->width ||
|
|
overlay_region.y + overlay_region.height > input_main->height) {
|
|
av_log(ctx, AV_LOG_WARNING,
|
|
"The overlay image exceeds the scope of the main image, "
|
|
"will crop the overlay image according based on the main image.\n");
|
|
}
|
|
|
|
memcpy(¶ms[1], ¶ms[0], sizeof(params[0]));
|
|
|
|
blend_state.flags = ctx->blend_flags;
|
|
blend_state.global_alpha = ctx->blend_alpha;
|
|
params[1].blend_state = &blend_state;
|
|
|
|
params[1].surface = (VASurfaceID)(uintptr_t)input_overlay->data[3];
|
|
params[1].surface_region = NULL;
|
|
params[1].output_region = &overlay_region;
|
|
}
|
|
|
|
err = ff_vaapi_vpp_render_pictures(avctx, params, input_overlay ? 2 : 1, output);
|
|
if (err < 0)
|
|
goto fail;
|
|
|
|
av_log(avctx, AV_LOG_DEBUG, "Filter output: %s, %ux%u (%"PRId64").\n",
|
|
av_get_pix_fmt_name(output->format),
|
|
output->width, output->height, output->pts);
|
|
|
|
return ff_filter_frame(outlink, output);
|
|
|
|
fail:
|
|
av_frame_free(&output);
|
|
return err;
|
|
}
|
|
|
|
static int have_alpha_planar(AVFilterLink *link)
|
|
{
|
|
enum AVPixelFormat pix_fmt = link->format;
|
|
const AVPixFmtDescriptor *desc;
|
|
AVHWFramesContext *fctx;
|
|
|
|
if (link->format == AV_PIX_FMT_VAAPI) {
|
|
fctx = (AVHWFramesContext *)link->hw_frames_ctx->data;
|
|
pix_fmt = fctx->sw_format;
|
|
}
|
|
|
|
desc = av_pix_fmt_desc_get(pix_fmt);
|
|
if (!desc)
|
|
return 0;
|
|
|
|
return !!(desc->flags & AV_PIX_FMT_FLAG_ALPHA);
|
|
}
|
|
|
|
static int overlay_vaapi_config_input_main(AVFilterLink *inlink)
|
|
{
|
|
AVFilterContext *avctx = inlink->dst;
|
|
OverlayVAAPIContext *ctx = avctx->priv;
|
|
|
|
ctx->var_values[VAR_MAIN_IW] =
|
|
ctx->var_values[VAR_MW] = inlink->w;
|
|
ctx->var_values[VAR_MAIN_IH] =
|
|
ctx->var_values[VAR_MH] = inlink->h;
|
|
|
|
return ff_vaapi_vpp_config_input(inlink);
|
|
}
|
|
|
|
static int overlay_vaapi_config_input_overlay(AVFilterLink *inlink)
|
|
{
|
|
AVFilterContext *avctx = inlink->dst;
|
|
OverlayVAAPIContext *ctx = avctx->priv;
|
|
int ret;
|
|
|
|
ctx->var_values[VAR_OVERLAY_IW] = inlink->w;
|
|
ctx->var_values[VAR_OVERLAY_IH] = inlink->h;
|
|
|
|
ret = eval_expr(avctx);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
ctx->ox = (int)ctx->var_values[VAR_OX];
|
|
ctx->oy = (int)ctx->var_values[VAR_OY];
|
|
ctx->ow = (int)ctx->var_values[VAR_OW];
|
|
ctx->oh = (int)ctx->var_values[VAR_OH];
|
|
|
|
ctx->blend_flags = 0;
|
|
ctx->blend_alpha = 1.0f;
|
|
|
|
if (ctx->alpha < 1.0f) {
|
|
ctx->blend_flags |= VA_BLEND_GLOBAL_ALPHA;
|
|
ctx->blend_alpha = ctx->alpha;
|
|
}
|
|
|
|
if (have_alpha_planar(inlink))
|
|
ctx->blend_flags |= VA_BLEND_PREMULTIPLIED_ALPHA;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int overlay_vaapi_config_output(AVFilterLink *outlink)
|
|
{
|
|
AVFilterContext *avctx = outlink->src;
|
|
OverlayVAAPIContext *ctx = avctx->priv;
|
|
VAAPIVPPContext *vpp_ctx = avctx->priv;
|
|
int err;
|
|
|
|
outlink->time_base = avctx->inputs[0]->time_base;
|
|
vpp_ctx->output_width = avctx->inputs[0]->w;
|
|
vpp_ctx->output_height = avctx->inputs[0]->h;
|
|
|
|
err = ff_vaapi_vpp_config_output(outlink);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
err = overlay_vaapi_build_filter_params(avctx);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
err = ff_framesync_init_dualinput(&ctx->fs, avctx);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
ctx->fs.on_event = overlay_vaapi_blend;
|
|
ctx->fs.time_base = outlink->time_base;
|
|
|
|
return ff_framesync_configure(&ctx->fs);
|
|
}
|
|
|
|
static av_cold int overlay_vaapi_init(AVFilterContext *avctx)
|
|
{
|
|
VAAPIVPPContext *vpp_ctx = avctx->priv;
|
|
|
|
ff_vaapi_vpp_ctx_init(avctx);
|
|
vpp_ctx->output_format = AV_PIX_FMT_NONE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int overlay_vaapi_activate(AVFilterContext *avctx)
|
|
{
|
|
OverlayVAAPIContext *ctx = avctx->priv;
|
|
|
|
return ff_framesync_activate(&ctx->fs);
|
|
}
|
|
|
|
static av_cold void overlay_vaapi_uninit(AVFilterContext *avctx)
|
|
{
|
|
OverlayVAAPIContext *ctx = avctx->priv;
|
|
|
|
ff_framesync_uninit(&ctx->fs);
|
|
ff_vaapi_vpp_ctx_uninit(avctx);
|
|
}
|
|
|
|
#define OFFSET(x) offsetof(OverlayVAAPIContext, x)
|
|
#define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)
|
|
static const AVOption overlay_vaapi_options[] = {
|
|
{ "x", "Overlay x position", OFFSET(overlay_ox), AV_OPT_TYPE_STRING, { .str="0"}, 0, 255, .flags = FLAGS},
|
|
{ "y", "Overlay y position", OFFSET(overlay_oy), AV_OPT_TYPE_STRING, { .str="0"}, 0, 255, .flags = FLAGS},
|
|
{ "w", "Overlay width", OFFSET(overlay_ow), AV_OPT_TYPE_STRING, { .str="overlay_iw"}, 0, 255, .flags = FLAGS},
|
|
{ "h", "Overlay height", OFFSET(overlay_oh), AV_OPT_TYPE_STRING, { .str="overlay_ih*w/overlay_iw"}, 0, 255, .flags = FLAGS},
|
|
{ "alpha", "Overlay global alpha", OFFSET(alpha), AV_OPT_TYPE_FLOAT, { .dbl = 1.0 }, 0.0, 1.0, .flags = FLAGS },
|
|
{ "eof_action", "Action to take when encountering EOF from secondary input ",
|
|
OFFSET(fs.opt_eof_action), AV_OPT_TYPE_INT, { .i64 = EOF_ACTION_REPEAT },
|
|
EOF_ACTION_REPEAT, EOF_ACTION_PASS, .flags = FLAGS, .unit = "eof_action" },
|
|
{ "repeat", "Repeat the previous frame.", 0, AV_OPT_TYPE_CONST, { .i64 = EOF_ACTION_REPEAT }, .flags = FLAGS, .unit = "eof_action" },
|
|
{ "endall", "End both streams.", 0, AV_OPT_TYPE_CONST, { .i64 = EOF_ACTION_ENDALL }, .flags = FLAGS, .unit = "eof_action" },
|
|
{ "pass", "Pass through the main input.", 0, AV_OPT_TYPE_CONST, { .i64 = EOF_ACTION_PASS }, .flags = FLAGS, .unit = "eof_action" },
|
|
{ "shortest", "force termination when the shortest input terminates", OFFSET(fs.opt_shortest), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS },
|
|
{ "repeatlast", "repeat overlay of the last overlay frame", OFFSET(fs.opt_repeatlast), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, FLAGS },
|
|
{ NULL },
|
|
};
|
|
|
|
FRAMESYNC_DEFINE_CLASS(overlay_vaapi, OverlayVAAPIContext, fs);
|
|
|
|
static const AVFilterPad overlay_vaapi_inputs[] = {
|
|
{
|
|
.name = "main",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.config_props = overlay_vaapi_config_input_main,
|
|
},
|
|
{
|
|
.name = "overlay",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.config_props = overlay_vaapi_config_input_overlay,
|
|
},
|
|
};
|
|
|
|
static const AVFilterPad overlay_vaapi_outputs[] = {
|
|
{
|
|
.name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.config_props = &overlay_vaapi_config_output,
|
|
},
|
|
};
|
|
|
|
const AVFilter ff_vf_overlay_vaapi = {
|
|
.name = "overlay_vaapi",
|
|
.description = NULL_IF_CONFIG_SMALL("Overlay one video on top of another"),
|
|
.priv_size = sizeof(OverlayVAAPIContext),
|
|
.priv_class = &overlay_vaapi_class,
|
|
.init = &overlay_vaapi_init,
|
|
.uninit = &overlay_vaapi_uninit,
|
|
.activate = &overlay_vaapi_activate,
|
|
.preinit = overlay_vaapi_framesync_preinit,
|
|
FILTER_INPUTS(overlay_vaapi_inputs),
|
|
FILTER_OUTPUTS(overlay_vaapi_outputs),
|
|
FILTER_SINGLE_PIXFMT(AV_PIX_FMT_VAAPI),
|
|
.flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
|
|
};
|