From 0153a78906ca1e57961ea10e8a61cc11ca04e985 Mon Sep 17 00:00:00 2001 From: Eric Wong Date: Sat, 31 Dec 2005 03:40:03 +0000 Subject: flac_plugin: revert the performance optimization we did a while ago the performance optimization was broken for big-endian architectures. mpd-uclinux is doing using a slightly different optimization to flacWrite() that we may end up using here in the future. git-svn-id: https://svn.musicpd.org/mpd/trunk@3753 09075e82-0dd4-0310-85a5-a0d7c8717e4f --- src/inputPlugins/flac_plugin.c | 42 +++++++++++++++++++----------------------- 1 file changed, 19 insertions(+), 23 deletions(-) (limited to 'src/inputPlugins/flac_plugin.c') diff --git a/src/inputPlugins/flac_plugin.c b/src/inputPlugins/flac_plugin.c index 6be7f43b3..455394888 100644 --- a/src/inputPlugins/flac_plugin.c +++ b/src/inputPlugins/flac_plugin.c @@ -407,11 +407,12 @@ FLAC__StreamDecoderWriteStatus flacWrite(const FLAC__SeekableStreamDecoder *dec, { FlacData * data = (FlacData *)vdata; FLAC__uint32 samples = frame->header.blocksize; - int c_samp; - int c_chan; + FLAC__uint16 u16; + unsigned char * uc; + int c_samp, c_chan, d_samp; + int i; float timeChange; FLAC__uint64 newPosition = 0; - const int bytesPerSample = data->dc->audioFormat.bits/8; timeChange = ((float)samples)/frame->header.sample_rate; data->time+= timeChange; @@ -423,27 +424,22 @@ FLAC__StreamDecoderWriteStatus flacWrite(const FLAC__SeekableStreamDecoder *dec, } data->position = newPosition; - for(c_samp = 0; c_samp < frame->header.blocksize; c_samp++) { - for(c_chan = 0; c_chan < frame->header.channels; c_chan++) { -#ifdef WORDS_BIGENDIAN - memcpy(data->chunk+data->chunk_length, - &buf[c_chan][c_samp]+4-bytesPerSample, - bytesPerSample); - data->chunk_length+=bytesPerSample; -#else - memcpy(data->chunk+data->chunk_length, - &buf[c_chan][c_samp], bytesPerSample); - data->chunk_length+=bytesPerSample; -#endif - if(FLAC_CHUNK_SIZE-data->chunk_length < bytesPerSample) - { - if(flacSendChunk(data)<0) { - return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT; - } - data->chunk_length = 0; - if(data->dc->seek) { - return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE; + for(c_samp = d_samp = 0; c_samp < frame->header.blocksize; c_samp++) { + for(c_chan = 0; c_chan < frame->header.channels; + c_chan++, d_samp++) { + u16 = buf[c_chan][c_samp]; + uc = (unsigned char *)&u16; + for(i=0;i<(data->dc->audioFormat.bits/8);i++) { + if(data->chunk_length>=FLAC_CHUNK_SIZE) { + if(flacSendChunk(data)<0) { + return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT; + } + data->chunk_length = 0; + if(data->dc->seek) { + return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE; + } } + data->chunk[data->chunk_length++] = *(uc++); } } } -- cgit v1.2.3