X-Git-Url: http://git.asbjorn.biz/?p=swftools.git;a=blobdiff_plain;f=lib%2Fmodules%2Fswfsound.c;h=7032b0202a832525f8cfc5b4733e66b274b895bc;hp=2209d85ce21b427a6a52e0cdfd0585b67cd6dfc3;hb=053e755a7308d49d9d00cfc8a24d2adfa5cc9a80;hpb=f14390c59ccf526e32cf4e3c12fb0cefe6bff8ab diff --git a/lib/modules/swfsound.c b/lib/modules/swfsound.c index 2209d85..7032b02 100644 --- a/lib/modules/swfsound.c +++ b/lib/modules/swfsound.c @@ -7,9 +7,19 @@ Copyright (c) 2001, 2002 Matthias Kramm - This file is distributed under the GPL, see file COPYING for details + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. -*/ + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef RFXSWF_DISABLESOUND @@ -72,27 +82,32 @@ void swf_SetSoundStreamBlock(TAG*tag, S16*samples, int numsamples, char first) #include "../lame/lame.h" /* TODO: find a way to set these from the outside */ -int swf_mp3_samplerate = 44100; +int swf_mp3_in_samplerate = 44100; +int swf_mp3_out_samplerate = 11025; int swf_mp3_channels = 1; +int swf_mp3_bitrate = 32; static lame_global_flags*lame_flags; -static void initlame(unsigned char*buf, int bufsize) +static void initlame() { + unsigned char buf[4096]; + int bufsize = 1152*2; + lame_flags = lame_init(); - lame_set_in_samplerate(lame_flags, swf_mp3_samplerate); + lame_set_in_samplerate(lame_flags, swf_mp3_in_samplerate); lame_set_num_channels(lame_flags, swf_mp3_channels); lame_set_scale(lame_flags, 0); // MPEG1 32, 44.1, 48khz // MPEG2 16, 22.05, 24 // MPEG2.5 8, 11.025, 12 - // (not used by decoding routines) - lame_set_out_samplerate(lame_flags, 11025); + lame_set_out_samplerate(lame_flags, swf_mp3_out_samplerate); lame_set_quality(lame_flags, 0); lame_set_mode(lame_flags, MONO/*3*/); + lame_set_brate(lame_flags, swf_mp3_bitrate); //lame_set_compression_ratio(lame_flags, 11.025); lame_set_bWriteVbrTag(lame_flags, 0); @@ -109,10 +124,7 @@ static void initlame(unsigned char*buf, int bufsize) void swf_SetSoundStreamHead(TAG*tag, int avgnumsamples) { - unsigned char buf[4096]; - int bufsize = 1152*2; int len; - short int samples[1152*2]; U8 playbackrate = 1; // 0 = 5.5 Khz, 1 = 11 Khz, 2 = 22 Khz, 3 = 44 Khz U8 playbacksize = 1; // 0 = 8 bit, 1 = 16 bit @@ -121,10 +133,14 @@ void swf_SetSoundStreamHead(TAG*tag, int avgnumsamples) U8 rate = 1; // 0 = 5.5 Khz, 1 = 11 Khz, 2 = 22 Khz, 3 = 44 Khz U8 size = 1; // 0 = 8 bit, 1 = 16 bit U8 type = 0; // 0 = mono, 1 = stereo - - memset(samples,0,sizeof(samples)); - initlame(buf, bufsize); + if(swf_mp3_out_samplerate == 5512) playbackrate = rate = 0; // lame doesn't support this + else if(swf_mp3_out_samplerate == 11025) playbackrate = rate = 1; + else if(swf_mp3_out_samplerate == 22050) playbackrate = rate = 2; + else if(swf_mp3_out_samplerate == 44100) playbackrate = rate = 3; + else fprintf(stderr, "Invalid samplerate: %d\n", swf_mp3_out_samplerate); + + initlame(); swf_SetU8(tag,(playbackrate<<2)|(playbacksize<<1)|playbacktype); swf_SetU8(tag,(compression<<4)|(rate<<2)|(size<<1)|type); @@ -134,34 +150,31 @@ void swf_SetSoundStreamHead(TAG*tag, int avgnumsamples) void swf_SetSoundStreamBlock(TAG*tag, S16*samples, int seek, char first) { char*buf; - int oldlen=0,len = 0; + int len = 0; int bufsize = 16384; - int numsamples = 1152*2; + int numsamples = (int)(((swf_mp3_out_samplerate > 22050) ? 1152 : 576) * ((double)swf_mp3_in_samplerate/swf_mp3_out_samplerate)); + int fs = 0; buf = malloc(bufsize); if(!buf) return; if(first) { - int fs = lame_get_framesize(lame_flags); - //printf("framesize:%d\n", fs); - swf_SetU16(tag, fs); // samples per mp3 frame + fs = lame_get_framesize(lame_flags); + swf_SetU16(tag, fs * first); // samples per mp3 frame swf_SetU16(tag, seek); // seek } len += lame_encode_buffer(lame_flags, samples, samples, numsamples, &buf[len], bufsize-len); - //printf("block: %d (+%d)\n", len, len-oldlen); - oldlen = len; - len += lame_encode_flush_nogap(lame_flags, &buf[len], bufsize-len); - //printf("flush: %d (+%d)\n", len, len-oldlen); - oldlen = len; - swf_SetBlock(tag, buf, len); - - /* len += lame_encode_flush(lame_flags, &buf[len], bufsize-len); - printf("flush! %d (+%d)\n", len, len-oldlen);*/ - + if(len == 0) { + fprintf(stderr, "error: mp3 empty block, %d samples, first:%d, framesize:%d\n", + numsamples, first, fs); + }/* else { + fprintf(stderr, "ok: mp3 nonempty block, %d samples, first:%d, framesize:%d\n", + numsamples, first, fs); + }*/ free(buf); } @@ -170,12 +183,18 @@ void swf_SetSoundStreamEnd(TAG*tag) lame_close (lame_flags); } +void swf_SetSoundDefineRaw(TAG*tag, S16*samples, int num, int samplerate) +{ + //swf_SetU8(tag,(/*compression*/0<<4)|(/*rate*/3<<2)|(/*size*/1<<1)|/*mono*/0); + //swf_SetU32(tag, numsamples); // 44100 -> 11025 + //swf_SetBlock(tag, wav2.data, numsamples*2); +} void swf_SetSoundDefine(TAG*tag, S16*samples, int num) { char*buf; int oldlen=0,len = 0; int bufsize = 16384; - int blocksize = 1152*2; + int blocksize = (int)(((swf_mp3_out_samplerate > 22050) ? 1152 : 576) * ((double)swf_mp3_in_samplerate/swf_mp3_out_samplerate)); int t; int blocks; @@ -183,17 +202,26 @@ void swf_SetSoundDefine(TAG*tag, S16*samples, int num) U8 rate = 1; // 0 = 5.5 Khz, 1 = 11 Khz, 2 = 22 Khz, 3 = 44 Khz U8 size = 1; // 0 = 8 bit, 1 = 16 bit U8 type = 0; // 0 = mono, 1 = stereo + + if(swf_mp3_out_samplerate == 5512) rate = 0; + else if(swf_mp3_out_samplerate == 11025) rate = 1; + else if(swf_mp3_out_samplerate == 22050) rate = 2; + else if(swf_mp3_out_samplerate == 44100) rate = 3; + else fprintf(stderr, "Invalid samplerate: %d\n", swf_mp3_out_samplerate); blocks = num / (blocksize); swf_SetU8(tag,(compression<<4)|(rate<<2)|(size<<1)|type); - swf_SetU32(tag,blocks*blocksize); + + swf_SetU32(tag, (int)(tag,blocks*blocksize / + ((double)swf_mp3_in_samplerate/swf_mp3_out_samplerate)) // account for resampling + ); buf = malloc(bufsize); if(!buf) return; - initlame(buf, bufsize); + initlame(); swf_SetU16(tag, 0); //delayseek for(t=0;tstop?SOUNDINFO_STOP:0) - |(info->multiple?SOUNDINFO_NOMULTIPLE:0) + |(info->nomultiple?SOUNDINFO_NOMULTIPLE:0) |(info->envelopes?SOUNDINFO_HASENVELOPE:0) |(info->loops?SOUNDINFO_HASLOOPS:0) |(info->outpoint?SOUNDINFO_HASOUTPOINT:0)