mirror of
https://github.com/vgmstream/vgmstream.git
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72 lines
2.1 KiB
C
72 lines
2.1 KiB
C
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#include "meta.h"
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#include "../coding/coding.h"
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/* .STRM - from Abylight 3DS games [Cursed Castilla (3DS)] */
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VGMSTREAM * init_vgmstream_strm_abylight(STREAMFILE *streamFile) {
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VGMSTREAM * vgmstream = NULL;
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off_t start_offset;
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int loop_flag, channel_count, sample_rate;
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size_t data_size;
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/* check extension */
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if ( !check_extensions(streamFile,"strm") )
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goto fail;
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/* check header */
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if (read_32bitBE(0x00,streamFile) != 0x5354524D) /* "STRM" */
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goto fail;
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if (read_32bitLE(0x04,streamFile) != 0x03E8) /* version 1000? */
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goto fail;
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loop_flag = 0;
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channel_count = 2; /* there are various possible fields but all files are stereo */
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sample_rate = read_32bitLE(0x08,streamFile);
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start_offset = 0x1e;
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data_size = read_32bitLE(0x10,streamFile);
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if (data_size != get_streamfile_size(streamFile) - start_offset)
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goto fail;
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if (data_size != read_32bitLE(0x18,streamFile))
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goto fail;
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/* build the VGMSTREAM */
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vgmstream = allocate_vgmstream(channel_count,loop_flag);
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if (!vgmstream) goto fail;
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vgmstream->sample_rate = sample_rate;
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vgmstream->num_samples = aac_get_samples(streamFile, start_offset, data_size);
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vgmstream->meta_type = meta_STRM_ABYLIGHT;
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#ifdef VGM_USE_FFMPEG
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{
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ffmpeg_codec_data *ffmpeg_data = NULL;
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ffmpeg_data = init_ffmpeg_offset(streamFile, start_offset,data_size);
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if (!ffmpeg_data) goto fail;
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vgmstream->codec_data = ffmpeg_data;
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vgmstream->coding_type = coding_FFmpeg;
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vgmstream->layout_type = layout_none;
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/* apparently none, or maybe ~600 */
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//if (!ffmpeg_data->skipSamples)
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// ffmpeg_set_skip_samples(ffmpeg_data, 1024);
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//vgmstream->num_samples -= 1024;
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}
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#else
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goto fail;
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#endif
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/* open the file for reading */
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if ( !vgmstream_open_stream(vgmstream, streamFile, start_offset) )
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goto fail;
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return vgmstream;
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fail:
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close_vgmstream(vgmstream);
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return NULL;
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}
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