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/*
* Copyright (c) 2002 A'rpi
* Copyright (C) 2012 Clément Bœsch
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 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 General Public License for more details.
*
* You should have received a copy of the GNU 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.
*/
/**
* @file
* libpostproc filter, ported from MPlayer.
*/
#include "libavutil/avassert.h"
#include "libavutil/opt.h"
#include "internal.h"
#include "libpostproc/postprocess.h"
typedef struct {
int mode_id;
pp_mode *modes[PP_QUALITY_MAX + 1];
void *pp_ctx;
} PPFilterContext;
static av_cold int pp_init(AVFilterContext *ctx, const char *args)
{
int i;
PPFilterContext *pp = ctx->priv;
if (!args || !*args)
args = "de";
for (i = 0; i <= PP_QUALITY_MAX; i++) {
pp->modes[i] = pp_get_mode_by_name_and_quality(args, i);
if (!pp->modes[i])
return AVERROR_EXTERNAL;
}
pp->mode_id = PP_QUALITY_MAX;
return 0;
}
static int pp_process_command(AVFilterContext *ctx, const char *cmd, const char *args,
char *res, int res_len, int flags)
{
PPFilterContext *pp = ctx->priv;
if (!strcmp(cmd, "quality")) {
pp->mode_id = av_clip(strtol(args, NULL, 10), 0, PP_QUALITY_MAX);
return 0;
}
return AVERROR(ENOSYS);
}
static int pp_query_formats(AVFilterContext *ctx)
{
static const enum PixelFormat pix_fmts[] = {
AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUVJ420P,
AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVJ422P,
AV_PIX_FMT_YUV411P,
AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUVJ444P,
AV_PIX_FMT_NONE
};
ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
return 0;
}
static int pp_config_props(AVFilterLink *inlink)
{
int flags = PP_CPU_CAPS_AUTO;
PPFilterContext *pp = inlink->dst->priv;
switch (inlink->format) {
case AV_PIX_FMT_YUVJ420P:
case AV_PIX_FMT_YUV420P: flags |= PP_FORMAT_420; break;
case AV_PIX_FMT_YUVJ422P:
case AV_PIX_FMT_YUV422P: flags |= PP_FORMAT_422; break;
case AV_PIX_FMT_YUV411P: flags |= PP_FORMAT_411; break;
case AV_PIX_FMT_YUVJ444P:
case AV_PIX_FMT_YUV444P: flags |= PP_FORMAT_444; break;
default: av_assert0(0);
}
pp->pp_ctx = pp_get_context(inlink->w, inlink->h, flags);
if (!pp->pp_ctx)
return AVERROR(ENOMEM);
return 0;
}
static int pp_filter_frame(AVFilterLink *inlink, AVFilterBufferRef *inbuf)
{
AVFilterContext *ctx = inlink->dst;
PPFilterContext *pp = ctx->priv;
AVFilterLink *outlink = ctx->outputs[0];
const int aligned_w = FFALIGN(outlink->w, 8);
const int aligned_h = FFALIGN(outlink->h, 8);
AVFilterBufferRef *outbuf;
outbuf = ff_get_video_buffer(outlink, AV_PERM_WRITE, aligned_w, aligned_h);
if (!outbuf) {
avfilter_unref_buffer(inbuf);
return AVERROR(ENOMEM);
}
avfilter_copy_buffer_ref_props(outbuf, inbuf);
pp_postprocess((const uint8_t **)inbuf->data, inbuf->linesize,
outbuf->data, outbuf->linesize,
aligned_w, outlink->h,
outbuf->video->qp_table,
outbuf->video->qp_table_linesize,
pp->modes[pp->mode_id],
pp->pp_ctx,
outbuf->video->pict_type);
avfilter_unref_buffer(inbuf);
return ff_filter_frame(outlink, outbuf);
}
static av_cold void pp_uninit(AVFilterContext *ctx)
{
int i;
PPFilterContext *pp = ctx->priv;
for (i = 0; i <= PP_QUALITY_MAX; i++)
pp_free_mode(pp->modes[i]);
if (pp->pp_ctx)
pp_free_context(pp->pp_ctx);
}
static const AVFilterPad pp_inputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.config_props = pp_config_props,
.filter_frame = pp_filter_frame,
.min_perms = AV_PERM_READ,
},
{ NULL }
};
static const AVFilterPad pp_outputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
},
{ NULL }
};
AVFilter avfilter_vf_pp = {
.name = "pp",
.description = NULL_IF_CONFIG_SMALL("Filter video using libpostproc."),
.priv_size = sizeof(PPFilterContext),
.init = pp_init,
.uninit = pp_uninit,
.query_formats = pp_query_formats,
.inputs = pp_inputs,
.outputs = pp_outputs,
.process_command = pp_process_command,
};
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