1 /*
2 * OpenH264 shared utils
3 * Copyright (C) 2014 Martin Storsjo
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #include <string.h>
23 #include <wels/codec_api.h>
24 #include <wels/codec_ver.h>
25
26 #include "libavutil/log.h"
27
28 #include "libopenh264.h"
29
30 // Convert libopenh264 log level to equivalent ffmpeg log level.
libopenh264_to_ffmpeg_log_level(int libopenh264_log_level)31 static int libopenh264_to_ffmpeg_log_level(int libopenh264_log_level)
32 {
33 if (libopenh264_log_level >= WELS_LOG_DETAIL) return AV_LOG_TRACE;
34 else if (libopenh264_log_level >= WELS_LOG_DEBUG) return AV_LOG_DEBUG;
35 else if (libopenh264_log_level >= WELS_LOG_INFO) return AV_LOG_VERBOSE;
36 else if (libopenh264_log_level >= WELS_LOG_WARNING) return AV_LOG_WARNING;
37 else if (libopenh264_log_level >= WELS_LOG_ERROR) return AV_LOG_ERROR;
38 else return AV_LOG_QUIET;
39 }
40
ff_libopenh264_trace_callback(void * ctx,int level,const char * msg)41 void ff_libopenh264_trace_callback(void *ctx, int level, const char *msg)
42 {
43 // The message will be logged only if the requested EQUIVALENT ffmpeg log level is
44 // less than or equal to the current ffmpeg log level.
45 int equiv_ffmpeg_log_level = libopenh264_to_ffmpeg_log_level(level);
46 av_log(ctx, equiv_ffmpeg_log_level, "%s\n", msg);
47 }
48
ff_libopenh264_check_version(void * logctx)49 int ff_libopenh264_check_version(void *logctx)
50 {
51 // Mingw GCC < 4.7 on x86_32 uses an incorrect/buggy ABI for the WelsGetCodecVersion
52 // function (for functions returning larger structs), thus skip the check in those
53 // configurations.
54 #if !defined(_WIN32) || !defined(__GNUC__) || !ARCH_X86_32 || AV_GCC_VERSION_AT_LEAST(4, 7)
55 OpenH264Version libver = WelsGetCodecVersion();
56 if (memcmp(&libver, &g_stCodecVersion, sizeof(libver))) {
57 av_log(logctx, AV_LOG_ERROR, "Incorrect library version loaded\n");
58 return AVERROR(EINVAL);
59 }
60 #endif
61 return 0;
62 }
63