193 lines
6.1 KiB
C
193 lines
6.1 KiB
C
#include "meta.h"
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#include "../coding/coding.h"
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/* .WAV - from Half-Life 2 (Xbox) */
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VGMSTREAM* init_vgmstream_xbox_hlwav(STREAMFILE* sf) {
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VGMSTREAM* vgmstream = NULL;
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uint32_t header_size, data_size, start_offset, sample_rate;
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int32_t loop_start;
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uint8_t format, freq_mode, channels;
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int loop_flag;
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/* checks */
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if (!check_extensions(sf, "wav,lwav"))
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goto fail;
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/* check header and size */
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header_size = read_u32le(0x00, sf);
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if (header_size != 0x14)
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goto fail;
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data_size = read_u32le(0x04, sf);
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start_offset = read_u32le(0x08, sf);
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if (data_size != get_streamfile_size(sf) - start_offset)
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goto fail;
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loop_start = read_s32le(0x0c, sf);
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format = read_u8(0x12, sf);
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freq_mode = read_u8(0x13, sf) & 0x0F;
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channels = (read_u8(0x13, sf) >> 4) & 0x0F;
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switch (freq_mode) {
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case 0x00: sample_rate = 11025; break;
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case 0x01: sample_rate = 22050; break;
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case 0x02: sample_rate = 44100; break;
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default: goto fail;
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}
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if (channels > 2) /* Source only supports mono and stereo */
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goto fail;
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loop_flag = (loop_start != -1);
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/* build the VGMSTREAM */
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vgmstream = allocate_vgmstream(channels, loop_flag);
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if (!vgmstream) goto fail;
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/* fill in the vital statistics */
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vgmstream->meta_type = meta_XBOX_HLWAV;
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vgmstream->sample_rate = sample_rate;
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vgmstream->loop_start_sample = loop_start;
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switch (format) {
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case 0x00: /* PCM */
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vgmstream->coding_type = coding_PCM16LE;
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vgmstream->layout_type = layout_interleave;
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vgmstream->interleave_block_size = 0x02;
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vgmstream->num_samples = pcm_bytes_to_samples(data_size, channels, 16);
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vgmstream->loop_end_sample = vgmstream->num_samples; /* always loops from the end */
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break;
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case 0x01: /* XBOX ADPCM */
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vgmstream->coding_type = coding_XBOX_IMA;
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vgmstream->layout_type = layout_none;
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vgmstream->num_samples = xbox_ima_bytes_to_samples(data_size, channels);
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vgmstream->loop_end_sample = vgmstream->num_samples;
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break;
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default:
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goto fail;
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}
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if (!vgmstream_open_stream(vgmstream, sf, 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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/* .360.WAV, .PS3.WAV - from Valve games running on Source Engine, evolution of Xbox .WAV format seen above */
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/* [The Orange Box (X360), Portal 2 (PS3/X360), Counter-Strike: Global Offensive (PS3/X360)] */
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VGMSTREAM* init_vgmstream_xmv_valve(STREAMFILE* sf) {
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VGMSTREAM* vgmstream = NULL;
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int32_t loop_start;
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uint32_t start_offset, data_size, sample_rate, num_samples;
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uint16_t /*loop_block, loop_start_skip,*/ loop_end_skip;
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uint8_t format, freq_mode, channels;
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int loop_flag;
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/* checks */
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if (!is_id32be(0x00, sf, "XMV "))
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goto fail;
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if (!check_extensions(sf, "wav,lwav"))
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goto fail;
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/* only version 4 is known */
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if (read_u32be(0x04, sf) != 0x04)
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goto fail;
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start_offset = read_u32be(0x10, sf);
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data_size = read_u32be(0x14, sf);
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num_samples = read_u32be(0x18, sf);
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loop_start = read_s32be(0x1c, sf);
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/* XMA only */
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//loop_block = read_u16be(0x20, sf);
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//loop_start_skip = read_u16be(0x22, sf);
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loop_end_skip = read_u16be(0x24, sf);
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format = read_u8(0x28, sf);
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freq_mode = read_u8(0x2a, sf);
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channels = read_u8(0x2b, sf);
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switch (freq_mode) {
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case 0x00: sample_rate = 11025; break;
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case 0x01: sample_rate = 22050; break;
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case 0x02: sample_rate = 44100; break;
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default: goto fail;
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}
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if (channels > 2) /* Source only supports mono and stereo */
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goto fail;
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loop_flag = (loop_start != -1);
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/* build the VGMSTREAM */
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vgmstream = allocate_vgmstream(channels, loop_flag);
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if (!vgmstream) goto fail;
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vgmstream->meta_type = meta_XMV_VALVE;
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vgmstream->sample_rate = sample_rate;
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vgmstream->num_samples = num_samples;
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vgmstream->loop_start_sample = loop_start;
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vgmstream->loop_end_sample = num_samples; /* always loops from the end */
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switch (format) {
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case 0x00: /* PCM */
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vgmstream->coding_type = coding_PCM16BE;
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vgmstream->layout_type = layout_interleave;
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vgmstream->interleave_block_size = 0x02;
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break;
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#ifdef VGM_USE_FFMPEG
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case 0x01: { /* XMA */
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uint8_t buf[0x100];
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int block_count, block_size;
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size_t bytes;
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block_size = 0x800;
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block_count = data_size / block_size;
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bytes = ffmpeg_make_riff_xma2(buf, 0x100, num_samples, data_size, channels, sample_rate, block_count, block_size);
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vgmstream->codec_data = init_ffmpeg_header_offset(sf, buf, bytes, start_offset, data_size);
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if (!vgmstream->codec_data) goto fail;
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vgmstream->coding_type = coding_FFmpeg;
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vgmstream->layout_type = layout_none;
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vgmstream->loop_end_sample -= loop_end_skip;
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xma_fix_raw_samples(vgmstream, sf, start_offset, data_size, 0, 1, 1);
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break;
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}
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#endif
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#ifdef VGM_USE_MPEG
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case 0x03: { /* MP3 */
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coding_t mpeg_coding;
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if (loop_flag) /* should never happen, Source cannot loop MP3 */
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goto fail;
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vgmstream->codec_data = init_mpeg(sf, start_offset, &mpeg_coding, channels);
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if (!vgmstream->codec_data) goto fail;
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vgmstream->coding_type = mpeg_coding;
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vgmstream->layout_type = layout_none;
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/* strangely, number of samples is stored incorrectly for MP3, there's PCM size in this field instead */
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vgmstream->num_samples = pcm_bytes_to_samples(num_samples, channels, 16);
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break;
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}
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#endif
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case 0x02: /* ADPCM (not actually implemented, was probably supposed to be Microsoft ADPCM or Xbox IMA) */
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default:
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goto fail;
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}
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if (!vgmstream_open_stream(vgmstream, sf, 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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