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/*
* OpenH264 shared utils
* Copyright (C) 2014 Martin Storsjo
*
* This file is part of Libav.
*
* Libav 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.
*
* Libav 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 Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <string.h>
#include <wels/codec_api.h>
#include <wels/codec_ver.h>
#include "libavutil/log.h"
#include "libopenh264.h"
// Convert libopenh264 log level to equivalent libav log level.
static int libopenh264_to_libav_log_level(int libopenh264_log_level)
{
if (libopenh264_log_level >= WELS_LOG_DETAIL) return AV_LOG_TRACE;
else if (libopenh264_log_level >= WELS_LOG_DEBUG) return AV_LOG_DEBUG;
else if (libopenh264_log_level >= WELS_LOG_INFO) return AV_LOG_VERBOSE;
else if (libopenh264_log_level >= WELS_LOG_WARNING) return AV_LOG_WARNING;
else if (libopenh264_log_level >= WELS_LOG_ERROR) return AV_LOG_ERROR;
else return AV_LOG_QUIET;
}
void ff_libopenh264_trace_callback(void *ctx, int level, const char *msg)
{
// The message will be logged only if the requested EQUIVALENT libav log level is
// less than or equal to the current libav log level.
int equiv_libav_log_level = libopenh264_to_libav_log_level(level);
av_log(ctx, equiv_libav_log_level, "%s\n", msg);
}
int ff_libopenh264_check_version(void *logctx)
{
// Mingw GCC < 4.7 on x86_32 uses an incorrect/buggy ABI for the WelsGetCodecVersion
// function (for functions returning larger structs), thus skip the check in those
// configurations.
#if !defined(_WIN32) || !defined(__GNUC__) || !ARCH_X86_32 || AV_GCC_VERSION_AT_LEAST(4, 7)
OpenH264Version libver = WelsGetCodecVersion();
if (memcmp(&libver, &g_stCodecVersion, sizeof(libver))) {
av_log(logctx, AV_LOG_ERROR, "Incorrect library version loaded\n");
return AVERROR(EINVAL);
}
#endif
return 0;
}
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