This is cherrypicked from libav, from commits 82b7525173f20702a8cbc26ebedbf4b69b8fecec and d0b1e6049b06eeeeca146ece4d2f199c5dba1565. Signed-off-by: Martin Storsjö <martin@martin.st>
		
			
				
	
	
		
			63 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			63 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/*
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 * OpenH264 shared utils
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 * Copyright (C) 2014 Martin Storsjo
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 *
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 * This file is part of FFmpeg.
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 *
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 * FFmpeg is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 2.1 of the License, or (at your option) any later version.
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 *
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 * FFmpeg is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with FFmpeg; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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 */
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#include <string.h>
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#include <wels/codec_api.h>
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#include <wels/codec_ver.h>
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#include "libavutil/log.h"
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#include "libopenh264.h"
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// Convert libopenh264 log level to equivalent ffmpeg log level.
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static int libopenh264_to_ffmpeg_log_level(int libopenh264_log_level)
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{
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    if      (libopenh264_log_level >= WELS_LOG_DETAIL)  return AV_LOG_TRACE;
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    else if (libopenh264_log_level >= WELS_LOG_DEBUG)   return AV_LOG_DEBUG;
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    else if (libopenh264_log_level >= WELS_LOG_INFO)    return AV_LOG_VERBOSE;
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    else if (libopenh264_log_level >= WELS_LOG_WARNING) return AV_LOG_WARNING;
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    else if (libopenh264_log_level >= WELS_LOG_ERROR)   return AV_LOG_ERROR;
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    else                                                return AV_LOG_QUIET;
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}
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void ff_libopenh264_trace_callback(void *ctx, int level, const char *msg)
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{
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    // The message will be logged only if the requested EQUIVALENT ffmpeg log level is
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    // less than or equal to the current ffmpeg log level.
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    int equiv_ffmpeg_log_level = libopenh264_to_ffmpeg_log_level(level);
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    av_log(ctx, equiv_ffmpeg_log_level, "%s\n", msg);
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}
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int ff_libopenh264_check_version(void *logctx)
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{
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    // Mingw GCC < 4.7 on x86_32 uses an incorrect/buggy ABI for the WelsGetCodecVersion
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    // function (for functions returning larger structs), thus skip the check in those
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    // configurations.
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#if !defined(_WIN32) || !defined(__GNUC__) || !ARCH_X86_32 || AV_GCC_VERSION_AT_LEAST(4, 7)
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    OpenH264Version libver = WelsGetCodecVersion();
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    if (memcmp(&libver, &g_stCodecVersion, sizeof(libver))) {
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        av_log(logctx, AV_LOG_ERROR, "Incorrect library version loaded\n");
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        return AVERROR(EINVAL);
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    }
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#endif
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    return 0;
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}
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