74 lines
1.9 KiB
C++
74 lines
1.9 KiB
C++
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#include <renderd7/music/Vorbis.hpp>
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#ifdef RENDERD7_MUSICDEC
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int rd7i_check_vorbis(const std::string &path) {
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// As always forced by libvorbis to not use fstream :(
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FILE *ft = fopen(path.c_str(), "r");
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OggVorbis_File testvf;
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int err;
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if (ft == NULL) return -1;
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err = ov_test(ft, &testvf, NULL, 0);
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ov_clear(&testvf);
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fclose(ft);
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return err;
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}
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namespace RenderD7 {
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int VorbisDecoder::_init(const std::string &path, MusicMeta& meta) {
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meta.path(path);
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if(path.find_last_of('/') != path.npos)
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meta.name(path.substr(path.find_last_of('/')));
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else
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meta.name(path);
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int ret = -1;
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if ((f = fopen(path.c_str(), "rb")) == NULL) return ret;
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if (ov_open(f, &vorbis_file, NULL, 0) < 0) return ret;
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if ((vi = ov_info(&vorbis_file, -1)) == NULL) return ret;
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ret = 0;
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return ret;
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}
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unsigned int VorbisDecoder::_getSampleRate() { return vi->rate; }
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unsigned char VorbisDecoder::_getChannels() { return vi->channels; }
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size_t VorbisDecoder::_getBufSize() { return buf_size; }
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unsigned long long VorbisDecoder::_decode(signed short*buf_addr) {
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uint64_t samples_read = 0;
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int samples2read = buf_size;
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char *buf = reinterpret_cast<char *>(buf_addr);
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while (samples2read > 0) {
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int cur_section;
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int samples_just_read =
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ov_read(&vorbis_file, buf, samples2read > 4096 ? 4096 : samples2read,
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&cur_section);
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if (samples_just_read < 0)
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return samples_just_read;
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else if (samples_just_read == 0)
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break; // End of File
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samples_read += samples_just_read;
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samples2read -= samples_just_read;
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buf += samples_just_read;
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}
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// Aka / sizeof(int16_t)
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return samples_read / sizeof(signed short);
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}
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void VorbisDecoder::_deinit() {
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ov_clear(&vorbis_file);
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fclose(f);
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}
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size_t VorbisDecoder::_getFileSamples() {
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return ov_pcm_total(&vorbis_file, -1)*vi->channels;
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}
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} // namespace RenderD7
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#endif
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