forked from len0rd/rockbox
Move wav related code to main.c
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21039 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Mohamed Tarek
parent
fe263f7260
commit
fde78ddcc0
2 changed files with 80 additions and 80 deletions
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@ -37,6 +37,86 @@
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# endif
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#endif
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static unsigned char wav_header[44]={
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'R','I','F','F',// 0 - ChunkID
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0,0,0,0, // 4 - ChunkSize (filesize-8)
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'W','A','V','E',// 8 - Format
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'f','m','t',' ',// 12 - SubChunkID
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16,0,0,0, // 16 - SubChunk1ID // 16 for PCM
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1,0, // 20 - AudioFormat (1=Uncompressed)
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2,0, // 22 - NumChannels
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0,0,0,0, // 24 - SampleRate in Hz
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0,0,0,0, // 28 - Byte Rate (SampleRate*NumChannels*(BitsPerSample/8)
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4,0, // 32 - BlockAlign (== NumChannels * BitsPerSample/8)
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16,0, // 34 - BitsPerSample
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'd','a','t','a',// 36 - Subchunk2ID
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0,0,0,0 // 40 - Subchunk2Size
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};
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int open_wav(char* filename) {
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int fd,res;
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fd=open(filename,O_CREAT|O_WRONLY|O_TRUNC,S_IRUSR|S_IWUSR);
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if (fd >= 0) {
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res = write(fd,wav_header,sizeof(wav_header));
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}
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return(fd);
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}
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void close_wav(int fd, RMContext *rmctx) {
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int x,res;
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int filesize;
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int bytes_per_sample = 2;
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int samples_per_frame = rmctx->samples_pf_pc;
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int nb_channels = rmctx->nb_channels;
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int sample_rate = rmctx->sample_rate;
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int nb_frames = rmctx->audio_framesize/rmctx->block_align * rmctx->nb_packets - 2; // first 2 frames have no valid audio; skipped in output
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filesize= samples_per_frame*bytes_per_sample*nb_frames +44;
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printf("Filesize = %d\n",filesize);
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// ChunkSize
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x=filesize-8;
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wav_header[4]=(x&0xff);
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wav_header[5]=(x&0xff00)>>8;
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wav_header[6]=(x&0xff0000)>>16;
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wav_header[7]=(x&0xff000000)>>24;
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// Number of channels
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wav_header[22]=nb_channels;
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// Samplerate
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wav_header[24]=sample_rate&0xff;
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wav_header[25]=(sample_rate&0xff00)>>8;
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wav_header[26]=(sample_rate&0xff0000)>>16;
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wav_header[27]=(sample_rate&0xff000000)>>24;
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// ByteRate
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x=sample_rate*bytes_per_sample*nb_channels;
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wav_header[28]=(x&0xff);
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wav_header[29]=(x&0xff00)>>8;
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wav_header[30]=(x&0xff0000)>>16;
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wav_header[31]=(x&0xff000000)>>24;
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// BlockAlign
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wav_header[32]=rmctx->block_align;//2*rmctx->nb_channels;
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// Bits per sample
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wav_header[34]=16;
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// Subchunk2Size
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x=filesize-44;
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wav_header[40]=(x&0xff);
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wav_header[41]=(x&0xff00)>>8;
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wav_header[42]=(x&0xff0000)>>16;
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wav_header[43]=(x&0xff000000)>>24;
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lseek(fd,0,SEEK_SET);
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res = write(fd,wav_header,sizeof(wav_header));
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close(fd);
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}
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int main(int argc, char *argv[])
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{
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int fd, fd_dec;
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@ -44,86 +44,6 @@
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/* ASF codec IDs */
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#define CODEC_ID_WMAV1 0x160
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#define CODEC_ID_WMAV2 0x161
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static unsigned char wav_header[44]={
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'R','I','F','F',// 0 - ChunkID
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0,0,0,0, // 4 - ChunkSize (filesize-8)
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'W','A','V','E',// 8 - Format
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'f','m','t',' ',// 12 - SubChunkID
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16,0,0,0, // 16 - SubChunk1ID // 16 for PCM
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1,0, // 20 - AudioFormat (1=Uncompressed)
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2,0, // 22 - NumChannels
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0,0,0,0, // 24 - SampleRate in Hz
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0,0,0,0, // 28 - Byte Rate (SampleRate*NumChannels*(BitsPerSample/8)
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4,0, // 32 - BlockAlign (== NumChannels * BitsPerSample/8)
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16,0, // 34 - BitsPerSample
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'd','a','t','a',// 36 - Subchunk2ID
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0,0,0,0 // 40 - Subchunk2Size
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};
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int open_wav(char* filename) {
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int fd,res;
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fd=open(filename,O_CREAT|O_WRONLY|O_TRUNC,S_IRUSR|S_IWUSR);
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if (fd >= 0) {
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res = write(fd,wav_header,sizeof(wav_header));
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}
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return(fd);
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}
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void close_wav(int fd, RMContext *rmctx) {
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int x,res;
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int filesize;
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int bytes_per_sample = 2;
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int samples_per_frame = rmctx->samples_pf_pc;
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int nb_channels = rmctx->nb_channels;
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int sample_rate = rmctx->sample_rate;
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int nb_frames = rmctx->audio_framesize/rmctx->block_align * rmctx->nb_packets - 2; // first 2 frames have no valid audio; skipped in output
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filesize= samples_per_frame*bytes_per_sample*nb_frames +44;
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printf("Filesize = %d\n",filesize);
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// ChunkSize
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x=filesize-8;
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wav_header[4]=(x&0xff);
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wav_header[5]=(x&0xff00)>>8;
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wav_header[6]=(x&0xff0000)>>16;
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wav_header[7]=(x&0xff000000)>>24;
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// Number of channels
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wav_header[22]=nb_channels;
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// Samplerate
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wav_header[24]=sample_rate&0xff;
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wav_header[25]=(sample_rate&0xff00)>>8;
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wav_header[26]=(sample_rate&0xff0000)>>16;
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wav_header[27]=(sample_rate&0xff000000)>>24;
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// ByteRate
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x=sample_rate*bytes_per_sample*nb_channels;
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wav_header[28]=(x&0xff);
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wav_header[29]=(x&0xff00)>>8;
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wav_header[30]=(x&0xff0000)>>16;
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wav_header[31]=(x&0xff000000)>>24;
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// BlockAlign
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wav_header[32]=rmctx->block_align;//2*rmctx->nb_channels;
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// Bits per sample
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wav_header[34]=16;
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// Subchunk2Size
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x=filesize-44;
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wav_header[40]=(x&0xff);
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wav_header[41]=(x&0xff00)>>8;
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wav_header[42]=(x&0xff0000)>>16;
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wav_header[43]=(x&0xff000000)>>24;
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lseek(fd,0,SEEK_SET);
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res = write(fd,wav_header,sizeof(wav_header));
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close(fd);
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}
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/* Some Rockbox-like functions (these should be implemented in metadata_common.[ch] */
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struct cook_extradata {
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