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/*
* 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 "formats.h"
#include "internal.h"
#include "vaapi_vpp.h"
// ProcAmp Min/Max/Default Values
#define BRIGHTNESS_MIN -100.0F
#define BRIGHTNESS_MAX 100.0F
#define BRIGHTNESS_DEFAULT 0.0F
#define CONTRAST_MIN 0.0F
#define CONTRAST_MAX 10.0F
#define CONTRAST_DEFAULT 1.0F
#define HUE_MIN -180.0F
#define HUE_MAX 180.0F
#define HUE_DEFAULT 0.0F
#define SATURATION_MIN 0.0F
#define SATURATION_MAX 10.0F
#define SATURATION_DEFAULT 1.0F
typedef struct ProcampVAAPIContext {
VAAPIVPPContext vpp_ctx; // must be the first field
float bright;
float hue;
float saturation;
float contrast;
} ProcampVAAPIContext;
static float map(float x, float in_min, float in_max, float out_min, float out_max)
{
double slope, output;
slope = 1.0 * (out_max - out_min) / (in_max - in_min);
output = out_min + slope * (x - in_min);
return (float)output;
}
static int procamp_vaapi_build_filter_params(AVFilterContext *avctx)
{
VAAPIVPPContext *vpp_ctx = avctx->priv;
ProcampVAAPIContext *ctx = avctx->priv;
VAStatus vas;
VAProcFilterParameterBufferColorBalance procamp_params[4];
VAProcFilterCapColorBalance procamp_caps[VAProcColorBalanceCount];
int num_caps;
int i = 0;
memset(&procamp_params, 0, sizeof(procamp_params));
memset(&procamp_caps, 0, sizeof(procamp_caps));
num_caps = VAProcColorBalanceCount;
vas = vaQueryVideoProcFilterCaps(vpp_ctx->hwctx->display, vpp_ctx->va_context,
VAProcFilterColorBalance, &procamp_caps, &num_caps);
if (vas != VA_STATUS_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to query procamp "
"filter caps: %d (%s).\n", vas, vaErrorStr(vas));
return AVERROR(EIO);
}
/* brightness */
procamp_params[i].type = VAProcFilterColorBalance;
procamp_params[i].attrib = VAProcColorBalanceBrightness;
procamp_params[i].value = map(ctx->bright, BRIGHTNESS_MIN, BRIGHTNESS_MAX,
procamp_caps[VAProcColorBalanceBrightness-1].range.min_value,
procamp_caps[VAProcColorBalanceBrightness-1].range.max_value);
i++;
/* contrast */
procamp_params[i].type = VAProcFilterColorBalance;
procamp_params[i].attrib = VAProcColorBalanceContrast;
procamp_params[i].value = map(ctx->contrast, CONTRAST_MIN, CONTRAST_MAX,
procamp_caps[VAProcColorBalanceContrast-1].range.min_value,
procamp_caps[VAProcColorBalanceContrast-1].range.max_value);
i++;
/* hue */
procamp_params[i].type = VAProcFilterColorBalance;
procamp_params[i].attrib = VAProcColorBalanceHue;
procamp_params[i].value = map(ctx->hue, HUE_MIN, HUE_MAX,
procamp_caps[VAProcColorBalanceHue-1].range.min_value,
procamp_caps[VAProcColorBalanceHue-1].range.max_value);
i++;
/* saturation */
procamp_params[i].type = VAProcFilterColorBalance;
procamp_params[i].attrib = VAProcColorBalanceSaturation;
procamp_params[i].value = map(ctx->saturation, SATURATION_MIN, SATURATION_MAX,
procamp_caps[VAProcColorBalanceSaturation-1].range.min_value,
procamp_caps[VAProcColorBalanceSaturation-1].range.max_value);
i++;
return ff_vaapi_vpp_make_param_buffers(avctx,
VAProcFilterParameterBufferType,
&procamp_params,
sizeof(procamp_params[0]),
i);
}
static int procamp_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;
VAProcPipelineParameterBuffer params;
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);
output_frame = ff_get_video_buffer(outlink, vpp_ctx->output_width,
vpp_ctx->output_height);
if (!output_frame) {
err = AVERROR(ENOMEM);
goto fail;
}
err = av_frame_copy_props(output_frame, input_frame);
if (err < 0)
goto fail;
err = ff_vaapi_vpp_init_params(avctx, ¶ms,
input_frame, output_frame);
if (err < 0)
goto fail;
params.filters = &vpp_ctx->filter_buffers[0];
params.num_filters = 1;
err = ff_vaapi_vpp_render_picture(avctx, ¶ms, output_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 procamp_vaapi_init(AVFilterContext *avctx)
{
VAAPIVPPContext *vpp_ctx = avctx->priv;
ff_vaapi_vpp_ctx_init(avctx);
vpp_ctx->pipeline_uninit = ff_vaapi_vpp_pipeline_uninit;
vpp_ctx->build_filter_params = procamp_vaapi_build_filter_params;
vpp_ctx->output_format = AV_PIX_FMT_NONE;
return 0;
}
#define OFFSET(x) offsetof(ProcampVAAPIContext, x)
#define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM)
static const AVOption procamp_vaapi_options[] = {
{ "b", "Output video brightness",
OFFSET(bright), AV_OPT_TYPE_FLOAT, { .dbl = BRIGHTNESS_DEFAULT }, BRIGHTNESS_MIN, BRIGHTNESS_MAX, .flags = FLAGS },
{ "brightness", "Output video brightness",
OFFSET(bright), AV_OPT_TYPE_FLOAT, { .dbl = BRIGHTNESS_DEFAULT }, BRIGHTNESS_MIN, BRIGHTNESS_MAX, .flags = FLAGS },
{ "s", "Output video saturation",
OFFSET(saturation), AV_OPT_TYPE_FLOAT, { .dbl = SATURATION_DEFAULT }, SATURATION_MIN, SATURATION_MAX, .flags = FLAGS },
{ "saturatio", "Output video saturation",
OFFSET(saturation), AV_OPT_TYPE_FLOAT, { .dbl = SATURATION_DEFAULT }, SATURATION_MIN, SATURATION_MAX, .flags = FLAGS },
{ "c", "Output video contrast",
OFFSET(contrast), AV_OPT_TYPE_FLOAT, { .dbl = CONTRAST_DEFAULT }, CONTRAST_MIN, CONTRAST_MAX, .flags = FLAGS },
{ "contrast", "Output video contrast",
OFFSET(contrast), AV_OPT_TYPE_FLOAT, { .dbl = CONTRAST_DEFAULT }, CONTRAST_MIN, CONTRAST_MAX, .flags = FLAGS },
{ "h", "Output video hue",
OFFSET(hue), AV_OPT_TYPE_FLOAT, { .dbl = HUE_DEFAULT }, HUE_MIN, HUE_MAX, .flags = FLAGS },
{ "hue", "Output video hue",
OFFSET(hue), AV_OPT_TYPE_FLOAT, { .dbl = HUE_DEFAULT }, HUE_MIN, HUE_MAX, .flags = FLAGS },
{ NULL },
};
AVFILTER_DEFINE_CLASS(procamp_vaapi);
static const AVFilterPad procamp_vaapi_inputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.filter_frame = &procamp_vaapi_filter_frame,
.config_props = &ff_vaapi_vpp_config_input,
},
};
static const AVFilterPad procamp_vaapi_outputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.config_props = &ff_vaapi_vpp_config_output,
},
};
const AVFilter ff_vf_procamp_vaapi = {
.name = "procamp_vaapi",
.description = NULL_IF_CONFIG_SMALL("ProcAmp (color balance) adjustments for hue, saturation, brightness, contrast"),
.priv_size = sizeof(ProcampVAAPIContext),
.init = &procamp_vaapi_init,
.uninit = &ff_vaapi_vpp_ctx_uninit,
.query_formats = &ff_vaapi_vpp_query_formats,
FILTER_INPUTS(procamp_vaapi_inputs),
FILTER_OUTPUTS(procamp_vaapi_outputs),
.priv_class = &procamp_vaapi_class,
.flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
};
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