aac5773f
 hucm
功能基本完成，接口待打磨
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/*
* Copyright (c) 2013 Georg Martius <georg dot martius at web dot de>
*
* 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 "vidstabutils.h"
/** convert AV's pixelformat to vid.stab pixelformat */
VSPixelFormat ff_av2vs_pixfmt(AVFilterContext *ctx, enum AVPixelFormat pf)
{
switch (pf) {
case AV_PIX_FMT_YUV420P: return PF_YUV420P;
case AV_PIX_FMT_YUV422P: return PF_YUV422P;
case AV_PIX_FMT_YUV444P: return PF_YUV444P;
case AV_PIX_FMT_YUV410P: return PF_YUV410P;
case AV_PIX_FMT_YUV411P: return PF_YUV411P;
case AV_PIX_FMT_YUV440P: return PF_YUV440P;
case AV_PIX_FMT_YUVA420P: return PF_YUVA420P;
case AV_PIX_FMT_GRAY8: return PF_GRAY8;
case AV_PIX_FMT_RGB24: return PF_RGB24;
case AV_PIX_FMT_BGR24: return PF_BGR24;
case AV_PIX_FMT_RGBA: return PF_RGBA;
default:
av_log(ctx, AV_LOG_ERROR, "cannot deal with pixel format %i\n", pf);
return PF_NONE;
}
}
/** struct to hold a valid context for logging from within vid.stab lib */
typedef struct VS2AVLogCtx {
const AVClass *class;
} VS2AVLogCtx;
/** wrapper to log vs_log into av_log */
static int vs2av_log(int type, const char *tag, const char *format, ...)
{
va_list ap;
VS2AVLogCtx ctx;
AVClass class = {
.class_name = tag,
.item_name = av_default_item_name,
.option = 0,
.version = LIBAVUTIL_VERSION_INT,
.category = AV_CLASS_CATEGORY_FILTER,
};
ctx.class = &class;
va_start(ap, format);
av_vlog(&ctx, type, format, ap);
va_end(ap);
return VS_OK;
}
/** sets the memory allocation function and logging constants to av versions */
void ff_vs_init(void)
{
vs_malloc = av_malloc;
vs_zalloc = av_mallocz;
vs_realloc = av_realloc;
vs_free = av_free;
VS_ERROR_TYPE = AV_LOG_ERROR;
VS_WARN_TYPE = AV_LOG_WARNING;
VS_INFO_TYPE = AV_LOG_INFO;
VS_MSG_TYPE = AV_LOG_VERBOSE;
vs_log = vs2av_log;
VS_ERROR = 0;
VS_OK = 1;
}
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