forked from mia/Aegisub
68 lines
2 KiB
C++
68 lines
2 KiB
C++
// Copyright (c) 2008-2009, Karl Blomster <thefluff@aegisub.org>
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//
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// Permission to use, copy, modify, and distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice appear in all copies.
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//
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// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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//
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// $Id$
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/// @file ffms_audio.h
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/// @brief FFmpegSource Audio support.
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/// @ingroup fmms audio
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#include "../../libffms/include/ffms.h"
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#include <libaegisub/exception.h>
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#ifndef AGI_PRE
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#ifdef WIN32
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#include <objbase.h>
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#endif
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#include <map>
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#endif
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#include "ffms_common.h"
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namespace agi {
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namespace ffms {
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/// @class Audio
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/// Audio file support.
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class Audio : public FFmpegSourceProvider {
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FFMS_AudioSource *AudioSource; ///< audio source object
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bool COMInited; ///< COM initialization state
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mutable char FFMSErrMsg[1024]; ///< FFMS error message
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mutable FFMS_ErrorInfo ErrInfo; ///< FFMS error codes/messages
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void Close();
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void LoadAudio(std::string filename);
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int channels;
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int64_t num_samples; // for one channel, ie. number of PCM frames
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int sample_rate;
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int bytes_per_sample;
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Audio(std::string filename);
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virtual ~Audio();
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/// @brief Checks sample endianness
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/// @return Returns true.
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/// FFMS always delivers native endian samples.
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bool AreSamplesNativeEndian() const { return true; }
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bool NeedsCache() const { return true; }
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virtual void GetAudio(void *buf, int64_t start, int64_t count) const;
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};
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} // namespace ffms
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} // namespace agi
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