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66 lines
2.5 KiB
D
66 lines
2.5 KiB
D
/*
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OpenMW - The completely unofficial reimplementation of Morrowind
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Copyright (C) 2008 Nicolay Korslund
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Email: < korslund@gmail.com >
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WWW: http://openmw.snaptoad.com/
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This file (avcodec.d) is part of the OpenMW package.
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OpenMW is distributed as free software: you can redistribute it
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and/or modify it under the terms of the GNU General Public License
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version 3, as published by the Free Software Foundation.
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This program is distributed in the hope that it will be useful, but
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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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General Public License for more details.
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You should have received a copy of the GNU General Public License
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version 3 along with this program. If not, see
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http://www.gnu.org/licenses/ .
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*/
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module sound.avcodec;
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extern (C):
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// A unique handle that represents an AV file
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typedef void* AVFile;
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// A unique handle representing an audio stream
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typedef void* AVAudio;
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// In case we ever decide to implement more codec backends, here's what
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// these functions need to do...
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// Open the named file, and return a unique handle representing it.
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// Returns NULL on error
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AVFile avc_openAVFile(char *fname);
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// Close the file handle, invalidating all streams taken from it
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void avc_closeAVFile(AVFile file);
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// Get a unique handle to an audio stream in the file. The given number
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// is for files that can contain multiple audio streams (generally you
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// would pass 0, for the first audio stream)
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AVAudio avc_getAVAudioStream(AVFile file, int streamnum);
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// Get audio info representing the current stream. Returns 0 for success
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// (not likely to fail)
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int avc_getAVAudioInfo(AVAudio stream, int *rate, int *channels, int *bits);
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// Decode the next bit of data for the given audio stream. The function
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// must provide no less than the requested number of bytes, except for
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// end-of-stream conditions, and is responsible for buffering data. For
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// files with multiple streams, it must take care to preserve data for
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// any stream that has had a stream handle returned.
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// eg. if a file has one video stream and 2 audio streams and the app
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// gets a handle to the video stream and one audio stream, it must
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// not destroy video data for subsequent calls to avc_getAVVideoData if
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// it has to read over it while decoding the audio stream. The other
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// audio stream's data, however, may be discarded.
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// Returns the number of bytes written to the buffer, which will be no
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// more than the provided length.
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int avc_getAVAudioData(AVAudio stream, void *data, int length);
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