3 * Copyright (C) 2005-2013 Team XBMC
6 * This Program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2, or (at your option)
11 * This Program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with XBMC; see the file COPYING. If not, write to
18 * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
19 * http://www.gnu.org/copyleft/gpl.html
23 #if (defined HAVE_CONFIG_H) && (!defined WIN32)
26 #include "DynamicDll.h"
27 #include "utils/log.h"
33 #ifndef __STDC_CONSTANT_MACROS
34 #define __STDC_CONSTANT_MACROS
37 #pragma warning(disable:4244)
39 #if (defined USE_EXTERNAL_FFMPEG)
40 #if HAVE_LIBSWRESAMPLE_SWRESAMPLE_H
41 #include <libswresample/swresample.h>
42 #elif HAVE_LIBAVRESAMPLE_AVRESAMPLE_H
43 #include <libavresample/avresample.h>
44 #include <libavutil/opt.h>
45 #include <libavutil/samplefmt.h>
46 #define SwrContext AVAudioResampleContext
48 #error "Either libswresample or libavresample is needed!"
51 #include "libswresample/swresample.h"
55 class DllSwResampleInterface
58 virtual ~DllSwResampleInterface() {}
59 virtual struct SwrContext *swr_alloc_set_opts(struct SwrContext *s, int64_t out_ch_layout, enum AVSampleFormat out_sample_fmt, int out_sample_rate, int64_t in_ch_layout, enum AVSampleFormat in_sample_fmt, int in_sample_rate, int log_offset, void *log_ctx)=0;
60 virtual int swr_init(struct SwrContext *s)=0;
61 virtual void swr_free(struct SwrContext **s)=0;
62 virtual int swr_convert(struct SwrContext *s, uint8_t **out, int out_count, const uint8_t **in , int in_count)=0;
63 virtual int64_t swr_get_delay(struct SwrContext *s, int64_t base) = 0;
64 virtual int swr_set_channel_mapping(struct SwrContext *s, const int *channel_map) = 0;
65 virtual int swr_set_matrix(struct SwrContext *s, const double *matrix, int stride) = 0;
68 #if (defined USE_EXTERNAL_FFMPEG) || (defined TARGET_DARWIN)
70 #if HAVE_LIBSWRESAMPLE_SWRESAMPLE_H || (defined TARGET_DARWIN)
72 class DllSwResample : public DllDynamic, DllSwResampleInterface
75 virtual ~DllSwResample() {}
78 virtual bool ResolveExports() { return true; }
80 #if !defined(TARGET_DARWIN)
81 CLog::Log(LOGDEBUG, "DllAvFormat: Using libswresample system library");
85 virtual void Unload() {}
86 virtual struct SwrContext *swr_alloc_set_opts(struct SwrContext *s, int64_t out_ch_layout, enum AVSampleFormat out_sample_fmt, int out_sample_rate, int64_t in_ch_layout, enum AVSampleFormat in_sample_fmt, int in_sample_rate, int log_offset, void *log_ctx) { return ::swr_alloc_set_opts(s, out_ch_layout, out_sample_fmt, out_sample_rate, in_ch_layout, in_sample_fmt, in_sample_rate, log_offset, log_ctx); }
87 virtual int swr_init(struct SwrContext *s) { return ::swr_init(s); }
88 virtual void swr_free(struct SwrContext **s){ return ::swr_free(s); }
89 virtual int swr_convert(struct SwrContext *s, uint8_t **out, int out_count, const uint8_t **in , int in_count){ return ::swr_convert(s, out, out_count, in, in_count); }
90 virtual int64_t swr_get_delay(struct SwrContext *s, int64_t base) { return ::swr_get_delay(s, base); }
91 virtual int swr_set_channel_mapping (struct SwrContext *s, const int *channel_map) { return ::swr_set_channel_mapping(s, channel_map); }
92 virtual int swr_set_matrix(struct SwrContext *s, const double *matrix, int stride) { return ::swr_set_matrix(s, matrix, stride); }
95 // Wrap the same API through libavresample.
96 class DllSwResample : public DllDynamic, DllSwResampleInterface
99 virtual ~DllSwResample() {}
102 virtual bool ResolveExports() { return true; }
103 virtual bool Load() {
104 #if !defined(TARGET_DARWIN)
105 CLog::Log(LOGDEBUG, "DllAvFormat: Using libavresample system library");
109 virtual void Unload() {}
110 virtual struct SwrContext *swr_alloc_set_opts(struct SwrContext *s, int64_t out_ch_layout, enum AVSampleFormat out_sample_fmt, int out_sample_rate, int64_t in_ch_layout, enum AVSampleFormat in_sample_fmt, int in_sample_rate, int log_offset, void *log_ctx) {
111 AVAudioResampleContext *ret = ::avresample_alloc_context();
112 av_opt_set_int(ret, "out_channel_layout", out_ch_layout , 0);
113 av_opt_set_int(ret, "out_sample_fmt" , out_sample_fmt , 0);
114 av_opt_set_int(ret, "out_sample_rate" , out_sample_rate, 0);
115 av_opt_set_int(ret, "in_channel_layout" , in_ch_layout , 0);
116 av_opt_set_int(ret, "in_sample_fmt" , in_sample_fmt , 0);
117 av_opt_set_int(ret, "in_sample_rate" , in_sample_rate , 0);
120 virtual int swr_init(struct SwrContext *s) { return ::avresample_open(s); }
121 virtual void swr_free(struct SwrContext **s){ ::avresample_close(*s); *s = NULL; }
122 virtual int swr_convert(struct SwrContext *s, uint8_t **out, int out_count, const uint8_t **in , int in_count){ return ::avresample_convert(s, out, 0, out_count, (uint8_t**)in, 0,in_count); }
128 class DllSwResample : public DllDynamic, DllSwResampleInterface
130 DECLARE_DLL_WRAPPER(DllSwResample, DLL_PATH_LIBSWRESAMPLE)
134 DEFINE_METHOD9(SwrContext*, swr_alloc_set_opts, (struct SwrContext *p1, int64_t p2, enum AVSampleFormat p3, int p4, int64_t p5, enum AVSampleFormat p6, int p7, int p8, void * p9));
135 DEFINE_METHOD1(int, swr_init, (struct SwrContext *p1))
136 DEFINE_METHOD1(void, swr_free, (struct SwrContext **p1))
137 DEFINE_METHOD5(int, swr_convert, (struct SwrContext *p1, uint8_t **p2, int p3, const uint8_t **p4, int p5))
138 DEFINE_METHOD2(int64_t, swr_get_delay, (struct SwrContext *p1, int64_t p2))
139 DEFINE_METHOD2(int, swr_set_channel_mapping, (struct SwrContext *p1, const int *p2))
140 DEFINE_METHOD3(int, swr_set_matrix, (struct SwrContext *p1, const double *p2, int p3))
142 BEGIN_METHOD_RESOLVE()
143 RESOLVE_METHOD(swr_alloc_set_opts)
144 RESOLVE_METHOD(swr_init)
145 RESOLVE_METHOD(swr_free)
146 RESOLVE_METHOD(swr_convert)
147 RESOLVE_METHOD(swr_get_delay)
148 RESOLVE_METHOD(swr_set_channel_mapping)
149 RESOLVE_METHOD(swr_set_matrix)
152 /* dependencies of libavformat */
153 DllAvUtil m_dllAvUtil;
159 if (!m_dllAvUtil.Load())
161 return DllDynamic::Load();