mirror of
https://github.com/vgmstream/vgmstream.git
synced 2024-12-24 04:14:50 +01:00
263 lines
8.2 KiB
C
263 lines
8.2 KiB
C
#include "meta.h"
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#include "../coding/coding.h"
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#ifdef VGM_USE_MP4V2
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void* mp4_file_open( const char* name, MP4FileMode mode )
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{
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char * endptr;
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#ifdef _MSC_VER
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unsigned __int64 ptr = _strtoui64( name, &endptr, 16 );
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#else
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unsigned long ptr = strtoul( name, &endptr, 16 );
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#endif
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return (void*) ptr;
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}
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int mp4_file_seek( void* handle, int64_t pos )
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{
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mp4_streamfile * file = ( mp4_streamfile * ) handle;
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if ( pos > file->size ) pos = file->size;
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pos += file->start;
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file->offset = pos;
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return 0;
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}
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int mp4_file_get_size( void* handle, int64_t* size )
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{
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mp4_streamfile * file = ( mp4_streamfile * ) handle;
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*size = file->size;
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return 0;
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}
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int mp4_file_read( void* handle, void* buffer, int64_t size, int64_t* nin, int64_t maxChunkSize )
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{
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mp4_streamfile * file = ( mp4_streamfile * ) handle;
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int64_t max_size = file->size - file->offset - file->start;
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if ( size > max_size ) size = max_size;
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if ( size > 0 )
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{
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*nin = read_streamfile( (uint8_t *) buffer, file->offset, size, file->streamfile );
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file->offset += *nin;
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}
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else
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{
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*nin = 0;
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return 1;
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}
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return 0;
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}
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int mp4_file_write( void* handle, const void* buffer, int64_t size, int64_t* nout, int64_t maxChunkSize )
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{
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return 1;
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}
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int mp4_file_close( void* handle )
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{
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return 0;
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}
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MP4FileProvider mp4_file_provider = { mp4_file_open, mp4_file_seek, mp4_file_read, mp4_file_write, mp4_file_close, mp4_file_get_size };
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#ifdef VGM_USE_FDKAAC
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VGMSTREAM * init_vgmstream_mp4_aac_offset(STREAMFILE *streamFile, uint64_t start, uint64_t size);
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VGMSTREAM * init_vgmstream_mp4_aac(STREAMFILE *streamFile) {
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return init_vgmstream_mp4_aac_offset( streamFile, 0, streamFile->get_size(streamFile) );
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}
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VGMSTREAM * init_vgmstream_mp4_aac_offset(STREAMFILE *streamFile, uint64_t start, uint64_t size) {
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VGMSTREAM * vgmstream = NULL;
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char filename[PATH_LIMIT];
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mp4_aac_codec_data * aac_file = ( mp4_aac_codec_data * ) calloc(1, sizeof(mp4_aac_codec_data));
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CStreamInfo * stream_info;
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uint8_t * buffer = NULL;
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uint32_t buffer_size;
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UINT ubuffer_size, bytes_valid;
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if ( !aac_file ) goto fail;
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aac_file->if_file.streamfile = streamFile;
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aac_file->if_file.start = start;
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aac_file->if_file.offset = start;
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aac_file->if_file.size = size;
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/* Big ol' kludge! */
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sprintf( filename, "%p", &aac_file->if_file );
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aac_file->h_mp4file = MP4ReadProvider( filename, &mp4_file_provider );
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if ( !aac_file->h_mp4file ) goto fail;
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if ( MP4GetNumberOfTracks(aac_file->h_mp4file, MP4_AUDIO_TRACK_TYPE, '\000') != 1 ) goto fail;
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aac_file->track_id = MP4FindTrackId( aac_file->h_mp4file, 0, MP4_AUDIO_TRACK_TYPE, '\000' );
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aac_file->h_aacdecoder = aacDecoder_Open( TT_MP4_RAW, 1 );
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if ( !aac_file->h_aacdecoder ) goto fail;
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MP4GetTrackESConfiguration( aac_file->h_mp4file, aac_file->track_id, (uint8_t**)(&buffer), (uint32_t*)(&buffer_size));
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ubuffer_size = buffer_size;
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if ( aacDecoder_ConfigRaw( aac_file->h_aacdecoder, &buffer, &ubuffer_size ) ) goto fail;
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free( buffer ); buffer = NULL;
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aac_file->sampleId = 1;
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aac_file->numSamples = MP4GetTrackNumberOfSamples( aac_file->h_mp4file, aac_file->track_id );
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if (!MP4ReadSample(aac_file->h_mp4file, aac_file->track_id, aac_file->sampleId, (uint8_t**)(&buffer), (uint32_t*)(&buffer_size), 0, 0, 0, 0)) goto fail;
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ubuffer_size = buffer_size;
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bytes_valid = buffer_size;
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if ( aacDecoder_Fill( aac_file->h_aacdecoder, &buffer, &ubuffer_size, &bytes_valid ) || bytes_valid ) goto fail;
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if ( aacDecoder_DecodeFrame( aac_file->h_aacdecoder, aac_file->sample_buffer, ( (6) * (2048)*4 ), 0 ) ) goto fail;
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free( buffer ); buffer = NULL;
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aac_file->sample_ptr = 0;
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stream_info = aacDecoder_GetStreamInfo( aac_file->h_aacdecoder );
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aac_file->samples_per_frame = stream_info->frameSize;
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aac_file->samples_discard = 0;
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streamFile->get_name( streamFile, filename, sizeof(filename) );
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aac_file->if_file.streamfile = streamFile->open(streamFile, filename, STREAMFILE_DEFAULT_BUFFER_SIZE);
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if (!aac_file->if_file.streamfile) goto fail;
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vgmstream = allocate_vgmstream( stream_info->numChannels, 1 );
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if (!vgmstream) goto fail;
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vgmstream->loop_flag = 0;
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vgmstream->codec_data = aac_file;
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vgmstream->channels = stream_info->numChannels;
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vgmstream->sample_rate = stream_info->sampleRate;
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vgmstream->num_samples = stream_info->frameSize * aac_file->numSamples;
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vgmstream->coding_type = coding_MP4_AAC;
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vgmstream->layout_type = layout_none;
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vgmstream->meta_type = meta_MP4;
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return vgmstream;
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fail:
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if ( buffer ) free( buffer );
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if ( aac_file ) {
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if ( aac_file->h_aacdecoder ) aacDecoder_Close( aac_file->h_aacdecoder );
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if ( aac_file->h_mp4file ) MP4Close( aac_file->h_mp4file, 0 );
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free( aac_file );
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}
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return NULL;
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}
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#endif
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#endif
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#ifdef VGM_USE_FFMPEG
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static int find_atom_be(STREAMFILE *streamFile, uint32_t atom_id, off_t start_offset, off_t *out_atom_offset, size_t *out_atom_size);
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VGMSTREAM * init_vgmstream_mp4_aac_ffmpeg(STREAMFILE *streamFile) {
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VGMSTREAM * vgmstream = NULL;
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off_t start_offset = 0;
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int loop_flag = 0;
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int32_t loop_start_sample = 0, loop_end_sample = 0;
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size_t filesize;
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off_t atom_offset;
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size_t atom_size;
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ffmpeg_codec_data *ffmpeg_data = NULL;
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/* check extension, case insensitive */
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/* .bin: Final Fantasy Dimensions (iOS), Final Fantasy V (iOS)
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* .msd: UNO (iOS) */
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if (!check_extensions(streamFile,"mp4,m4a,m4v,lmp4,bin,msd"))
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goto fail;
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filesize = streamFile->get_size(streamFile);
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/* check header */
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if ( read_32bitBE(start_offset+0x04,streamFile) != 0x66747970) /* atom size @0x00 + "ftyp" @0x04 */
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goto fail;
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ffmpeg_data = init_ffmpeg_offset(streamFile, start_offset, filesize);
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if ( !ffmpeg_data ) goto fail;
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/* Tales of Hearts iOS has loop info in the first "free" atom */
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if (find_atom_be(streamFile, 0x66726565, start_offset, &atom_offset, &atom_size)) { /* "free" */
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if (read_32bitBE(atom_offset,streamFile) == 0x4F700002
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&& (atom_size == 0x38 || atom_size == 0x40)) { /* make sure it's ToHr "free" */
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/* 0x00: id? 0x04/8: s_rate; 0x10: num_samples (without padding, same as FFmpeg's) */
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/* 0x14/18/1c: 0x238/250/278? 0x20: ? 0x24: start_pad */
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loop_flag = read_32bitBE(atom_offset+0x28,streamFile);
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if (loop_flag) { /* atom ends if no loop flag */
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loop_start_sample = read_32bitBE(atom_offset+0x2c,streamFile);
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loop_end_sample = read_32bitBE(atom_offset+0x30,streamFile);
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}
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}
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}
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/* build the VGMSTREAM */
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vgmstream = allocate_vgmstream(ffmpeg_data->channels,loop_flag);
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if (!vgmstream) 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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vgmstream->meta_type = meta_MP4;
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vgmstream->sample_rate = ffmpeg_data->sampleRate;
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vgmstream->num_samples = ffmpeg_data->totalSamples;
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vgmstream->loop_start_sample = loop_start_sample;
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vgmstream->loop_end_sample = loop_end_sample;
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vgmstream->channel_layout = ffmpeg_get_channel_layout(vgmstream->codec_data);
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return vgmstream;
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fail:
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if (ffmpeg_data) {
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free_ffmpeg(ffmpeg_data);
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if (vgmstream) vgmstream->codec_data = NULL;
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}
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if (vgmstream) close_vgmstream(vgmstream);
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return NULL;
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}
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/* Almost the same as streamfile.c's find_chunk but for "atom" chunks, which have chunk_size first because Apple, returns 0 on failure */
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static int find_atom_be(STREAMFILE *streamFile, uint32_t atom_id, off_t start_offset, off_t *out_atom_offset, size_t *out_atom_size) {
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size_t filesize;
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off_t current_atom = start_offset;
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int full_atom_size = 1;
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int size_big_endian = 1;
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filesize = get_streamfile_size(streamFile);
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/* read chunks */
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while (current_atom < filesize) {
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off_t chunk_size = size_big_endian ?
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read_32bitBE(current_atom+0,streamFile) :
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read_32bitLE(current_atom+0,streamFile);
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uint32_t chunk_type = read_32bitBE(current_atom+4,streamFile);
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if (chunk_type == atom_id) {
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if (out_atom_size) *out_atom_size = chunk_size;
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if (out_atom_offset) *out_atom_offset = current_atom+8;
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return 1;
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}
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current_atom += full_atom_size ? chunk_size : 4+4+chunk_size;
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}
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return 0;
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}
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#endif
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