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--HG-- rename : modules/libfishsound/AUTHORS => media/libfishsound/AUTHORS rename : modules/libfishsound/COPYING => media/libfishsound/COPYING rename : modules/libfishsound/ChangeLog => media/libfishsound/ChangeLog rename : modules/libfishsound/Makefile.in => media/libfishsound/Makefile.in rename : modules/libfishsound/README => media/libfishsound/README rename : modules/libfishsound/README_MOZILLA => media/libfishsound/README_MOZILLA rename : modules/libfishsound/include/Makefile.in => media/libfishsound/include/Makefile.in rename : modules/libfishsound/include/fishsound/Makefile.in => media/libfishsound/include/fishsound/Makefile.in rename : modules/libfishsound/include/fishsound/comments.h => media/libfishsound/include/fishsound/comments.h rename : modules/libfishsound/include/fishsound/config.h => media/libfishsound/include/fishsound/config.h rename : modules/libfishsound/include/fishsound/constants.h => media/libfishsound/include/fishsound/constants.h rename : modules/libfishsound/include/fishsound/decode.h => media/libfishsound/include/fishsound/decode.h rename : modules/libfishsound/include/fishsound/deprecated.h => media/libfishsound/include/fishsound/deprecated.h rename : modules/libfishsound/include/fishsound/encode.h => media/libfishsound/include/fishsound/encode.h rename : modules/libfishsound/include/fishsound/fishsound.h => media/libfishsound/include/fishsound/fishsound.h rename : modules/libfishsound/src/Makefile.in => media/libfishsound/src/Makefile.in rename : modules/libfishsound/src/libfishsound/Makefile.in => media/libfishsound/src/libfishsound/Makefile.in rename : modules/libfishsound/src/libfishsound/config.h => media/libfishsound/src/libfishsound/config.h rename : modules/libfishsound/src/libfishsound/convert.h => media/libfishsound/src/libfishsound/convert.h rename : modules/libfishsound/src/libfishsound/convert_c.h => media/libfishsound/src/libfishsound/convert_c.h rename : modules/libfishsound/src/libfishsound/convert_oil.h => media/libfishsound/src/libfishsound/convert_oil.h rename : modules/libfishsound/src/libfishsound/fishsound.c => media/libfishsound/src/libfishsound/fishsound.c rename : modules/libfishsound/src/libfishsound/fishsound_comments.c => media/libfishsound/src/libfishsound/fishsound_comments.c rename : modules/libfishsound/src/libfishsound/fishsound_decode.c => media/libfishsound/src/libfishsound/fishsound_decode.c rename : modules/libfishsound/src/libfishsound/fishsound_encode.c => media/libfishsound/src/libfishsound/fishsound_encode.c rename : modules/libfishsound/src/libfishsound/fishsound_flac.c => media/libfishsound/src/libfishsound/fishsound_flac.c rename : modules/libfishsound/src/libfishsound/fishsound_speex.c => media/libfishsound/src/libfishsound/fishsound_speex.c rename : modules/libfishsound/src/libfishsound/fishsound_vorbis.c => media/libfishsound/src/libfishsound/fishsound_vorbis.c rename : modules/libfishsound/src/libfishsound/fs_compat.h => media/libfishsound/src/libfishsound/fs_compat.h rename : modules/libfishsound/src/libfishsound/fs_vector.c => media/libfishsound/src/libfishsound/fs_vector.c rename : modules/libfishsound/src/libfishsound/fs_vector.h => media/libfishsound/src/libfishsound/fs_vector.h rename : modules/libfishsound/src/libfishsound/private.h => media/libfishsound/src/libfishsound/private.h rename : modules/libfishsound/update.sh => media/libfishsound/update.sh rename : modules/libogg/AUTHORS => media/libogg/AUTHORS rename : modules/libogg/CHANGES => media/libogg/CHANGES rename : modules/libogg/COPYING => media/libogg/COPYING rename : modules/libogg/Makefile.in => media/libogg/Makefile.in rename : modules/libogg/README => media/libogg/README rename : modules/libogg/README_MOZILLA => media/libogg/README_MOZILLA rename : modules/libogg/include/Makefile.in => media/libogg/include/Makefile.in rename : modules/libogg/include/ogg/Makefile.in => media/libogg/include/ogg/Makefile.in rename : modules/libogg/include/ogg/config_types.h => media/libogg/include/ogg/config_types.h rename : modules/libogg/include/ogg/ogg.h => media/libogg/include/ogg/ogg.h rename : modules/libogg/include/ogg/os_types.h => media/libogg/include/ogg/os_types.h rename : modules/libogg/src/Makefile.in => media/libogg/src/Makefile.in rename : modules/libogg/src/bitwise.c => media/libogg/src/bitwise.c rename : modules/libogg/src/framing.c => media/libogg/src/framing.c rename : modules/libogg/src/ogg_bitwise.c => media/libogg/src/ogg_bitwise.c rename : modules/libogg/src/ogg_framing.c => media/libogg/src/ogg_framing.c rename : modules/libogg/update.sh => media/libogg/update.sh rename : modules/liboggplay/Makefile.in => media/liboggplay/Makefile.in rename : modules/liboggplay/README => media/liboggplay/README rename : modules/liboggplay/README_MOZILLA => media/liboggplay/README_MOZILLA rename : modules/liboggplay/include/Makefile.in => 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media/liboggplay/src/liboggplay/oggplay_callback_info.c rename : modules/liboggplay/src/liboggplay/oggplay_data.c => media/liboggplay/src/liboggplay/oggplay_data.c rename : modules/liboggplay/src/liboggplay/oggplay_data.h => media/liboggplay/src/liboggplay/oggplay_data.h rename : modules/liboggplay/src/liboggplay/oggplay_file_reader.c => media/liboggplay/src/liboggplay/oggplay_file_reader.c rename : modules/liboggplay/src/liboggplay/oggplay_file_reader.h => media/liboggplay/src/liboggplay/oggplay_file_reader.h rename : modules/liboggplay/src/liboggplay/oggplay_private.h => media/liboggplay/src/liboggplay/oggplay_private.h rename : modules/liboggplay/src/liboggplay/oggplay_query.c => media/liboggplay/src/liboggplay/oggplay_query.c rename : modules/liboggplay/src/liboggplay/oggplay_seek.c => media/liboggplay/src/liboggplay/oggplay_seek.c rename : modules/liboggplay/src/liboggplay/oggplay_tcp_reader.c => media/liboggplay/src/liboggplay/oggplay_tcp_reader.c rename : modules/liboggplay/src/liboggplay/oggplay_tcp_reader.h => media/liboggplay/src/liboggplay/oggplay_tcp_reader.h rename : modules/liboggplay/src/liboggplay/oggplay_tools.c => media/liboggplay/src/liboggplay/oggplay_tools.c rename : modules/liboggplay/src/liboggplay/oggplay_yuv2rgb.c => media/liboggplay/src/liboggplay/oggplay_yuv2rgb.c rename : modules/liboggplay/src/liboggplay/std_semaphore.h => media/liboggplay/src/liboggplay/std_semaphore.h rename : modules/liboggplay/update.sh => media/liboggplay/update.sh rename : modules/liboggplay_audio/Makefile.in => media/liboggplay_audio/Makefile.in rename : modules/liboggplay_audio/README_MOZILLA => media/liboggplay_audio/README_MOZILLA rename : modules/liboggplay_audio/sydney_audio.h => media/liboggplay_audio/sydney_audio.h rename : modules/liboggplay_audio/sydney_audio_alsa.c => media/liboggplay_audio/sydney_audio_alsa.c rename : modules/liboggplay_audio/sydney_audio_mac.c => media/liboggplay_audio/sydney_audio_mac.c rename : 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modules/libvorbis/lib/masking.h => media/libvorbis/lib/masking.h rename : modules/libvorbis/lib/mdct.h => media/libvorbis/lib/mdct.h rename : modules/libvorbis/lib/misc.h => media/libvorbis/lib/misc.h rename : modules/libvorbis/lib/os.h => media/libvorbis/lib/os.h rename : modules/libvorbis/lib/psy.h => media/libvorbis/lib/psy.h rename : modules/libvorbis/lib/registry.h => media/libvorbis/lib/registry.h rename : modules/libvorbis/lib/scales.h => media/libvorbis/lib/scales.h rename : modules/libvorbis/lib/smallft.h => media/libvorbis/lib/smallft.h rename : modules/libvorbis/lib/vorbis_analysis.c => media/libvorbis/lib/vorbis_analysis.c rename : modules/libvorbis/lib/vorbis_bitrate.c => media/libvorbis/lib/vorbis_bitrate.c rename : modules/libvorbis/lib/vorbis_block.c => media/libvorbis/lib/vorbis_block.c rename : modules/libvorbis/lib/vorbis_codebook.c => media/libvorbis/lib/vorbis_codebook.c rename : modules/libvorbis/lib/vorbis_envelope.c => media/libvorbis/lib/vorbis_envelope.c rename : modules/libvorbis/lib/vorbis_floor0.c => media/libvorbis/lib/vorbis_floor0.c rename : modules/libvorbis/lib/vorbis_floor1.c => media/libvorbis/lib/vorbis_floor1.c rename : modules/libvorbis/lib/vorbis_info.c => media/libvorbis/lib/vorbis_info.c rename : modules/libvorbis/lib/vorbis_lookup.c => media/libvorbis/lib/vorbis_lookup.c rename : modules/libvorbis/lib/vorbis_lpc.c => media/libvorbis/lib/vorbis_lpc.c rename : modules/libvorbis/lib/vorbis_lsp.c => media/libvorbis/lib/vorbis_lsp.c rename : modules/libvorbis/lib/vorbis_mapping0.c => media/libvorbis/lib/vorbis_mapping0.c rename : modules/libvorbis/lib/vorbis_mdct.c => media/libvorbis/lib/vorbis_mdct.c rename : modules/libvorbis/lib/vorbis_psy.c => media/libvorbis/lib/vorbis_psy.c rename : modules/libvorbis/lib/vorbis_registry.c => media/libvorbis/lib/vorbis_registry.c rename : modules/libvorbis/lib/vorbis_res0.c => media/libvorbis/lib/vorbis_res0.c rename : modules/libvorbis/lib/vorbis_sharedbook.c => media/libvorbis/lib/vorbis_sharedbook.c rename : modules/libvorbis/lib/vorbis_smallft.c => media/libvorbis/lib/vorbis_smallft.c rename : modules/libvorbis/lib/vorbis_synthesis.c => media/libvorbis/lib/vorbis_synthesis.c rename : modules/libvorbis/lib/vorbis_window.c => media/libvorbis/lib/vorbis_window.c rename : modules/libvorbis/lib/window.h => media/libvorbis/lib/window.h rename : modules/libvorbis/todo.txt => media/libvorbis/todo.txt rename : modules/libvorbis/update.sh => media/libvorbis/update.sh
240 lines
8.1 KiB
C
240 lines
8.1 KiB
C
/********************************************************************
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* *
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* THIS FILE IS PART OF THE OggTheora SOFTWARE CODEC SOURCE CODE. *
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* USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
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* GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
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* IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
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* *
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* THE Theora SOURCE CODE IS COPYRIGHT (C) 2002-2007 *
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* by the Xiph.Org Foundation http://www.xiph.org/ *
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* *
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********************************************************************
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function:
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last mod: $Id: decinfo.c 14719 2008-04-12 11:36:40Z tterribe $
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********************************************************************/
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#include <stdlib.h>
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#include <string.h>
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#include <limits.h>
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#include "decint.h"
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/*Unpacks a series of octets from a given byte array into the pack buffer.
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No checking is done to ensure the buffer contains enough data.
|
|
_opb: The pack buffer to read the octets from.
|
|
_buf: The byte array to store the unpacked bytes in.
|
|
_len: The number of octets to unpack.*/
|
|
static void oc_unpack_octets(oggpack_buffer *_opb,char *_buf,size_t _len){
|
|
while(_len-->0){
|
|
long val;
|
|
theorapackB_read(_opb,8,&val);
|
|
*_buf++=(char)val;
|
|
}
|
|
}
|
|
|
|
/*Unpacks a 32-bit integer encoded by octets in little-endian form.*/
|
|
static long oc_unpack_length(oggpack_buffer *_opb){
|
|
long ret[4];
|
|
int i;
|
|
for(i=0;i<4;i++)theorapackB_read(_opb,8,ret+i);
|
|
return ret[0]|ret[1]<<8|ret[2]<<16|ret[3]<<24;
|
|
}
|
|
|
|
static int oc_info_unpack(oggpack_buffer *_opb,th_info *_info){
|
|
long val;
|
|
/*Check the codec bitstream version.*/
|
|
theorapackB_read(_opb,8,&val);
|
|
_info->version_major=(unsigned char)val;
|
|
theorapackB_read(_opb,8,&val);
|
|
_info->version_minor=(unsigned char)val;
|
|
theorapackB_read(_opb,8,&val);
|
|
_info->version_subminor=(unsigned char)val;
|
|
/*verify we can parse this bitstream version.
|
|
We accept earlier minors and all subminors, by spec*/
|
|
if(_info->version_major>TH_VERSION_MAJOR||
|
|
_info->version_major==TH_VERSION_MAJOR&&
|
|
_info->version_minor>TH_VERSION_MINOR){
|
|
return TH_EVERSION;
|
|
}
|
|
/*Read the encoded frame description.*/
|
|
theorapackB_read(_opb,16,&val);
|
|
_info->frame_width=(ogg_uint32_t)val<<4;
|
|
theorapackB_read(_opb,16,&val);
|
|
_info->frame_height=(ogg_uint32_t)val<<4;
|
|
theorapackB_read(_opb,24,&val);
|
|
_info->pic_width=(ogg_uint32_t)val;
|
|
theorapackB_read(_opb,24,&val);
|
|
_info->pic_height=(ogg_uint32_t)val;
|
|
theorapackB_read(_opb,8,&val);
|
|
_info->pic_x=(ogg_uint32_t)val;
|
|
/*Note: The sense of pic_y is inverted in what we pass back to the
|
|
application compared to how it is stored in the bitstream.
|
|
This is because the bitstream uses a right-handed coordinate system, while
|
|
applications expect a left-handed one.*/
|
|
theorapackB_read(_opb,8,&val);
|
|
_info->pic_y=_info->frame_height-_info->pic_height-(ogg_uint32_t)val;
|
|
theorapackB_read(_opb,32,&val);
|
|
_info->fps_numerator=(ogg_uint32_t)val;
|
|
theorapackB_read(_opb,32,&val);
|
|
_info->fps_denominator=(ogg_uint32_t)val;
|
|
if(_info->frame_width==0||_info->frame_height==0||
|
|
_info->pic_width+_info->pic_x>_info->frame_width||
|
|
_info->pic_height+_info->pic_y>_info->frame_height||
|
|
_info->fps_numerator==0||_info->fps_denominator==0){
|
|
return TH_EBADHEADER;
|
|
}
|
|
theorapackB_read(_opb,24,&val);
|
|
_info->aspect_numerator=(ogg_uint32_t)val;
|
|
theorapackB_read(_opb,24,&val);
|
|
_info->aspect_denominator=(ogg_uint32_t)val;
|
|
theorapackB_read(_opb,8,&val);
|
|
_info->colorspace=(th_colorspace)val;
|
|
theorapackB_read(_opb,24,&val);
|
|
_info->target_bitrate=(int)val;
|
|
theorapackB_read(_opb,6,&val);
|
|
_info->quality=(int)val;
|
|
theorapackB_read(_opb,5,&val);
|
|
_info->keyframe_granule_shift=(int)val;
|
|
theorapackB_read(_opb,2,&val);
|
|
_info->pixel_fmt=(th_pixel_fmt)val;
|
|
if(_info->pixel_fmt==TH_PF_RSVD)return TH_EBADHEADER;
|
|
if(theorapackB_read(_opb,3,&val)<0||val!=0)return TH_EBADHEADER;
|
|
return 0;
|
|
}
|
|
|
|
static int oc_comment_unpack(oggpack_buffer *_opb,th_comment *_tc){
|
|
long len;
|
|
int i;
|
|
/*Read the vendor string.*/
|
|
len=oc_unpack_length(_opb);
|
|
if(len<0||theorapackB_bytes(_opb)+len>_opb->storage)return TH_EBADHEADER;
|
|
_tc->vendor=_ogg_malloc((size_t)len+1);
|
|
oc_unpack_octets(_opb,_tc->vendor,len);
|
|
_tc->vendor[len]='\0';
|
|
/*Read the user comments.*/
|
|
_tc->comments=(int)oc_unpack_length(_opb);
|
|
if(_tc->comments<0||_tc->comments>(LONG_MAX>>2)||
|
|
theorapackB_bytes(_opb)+((long)_tc->comments<<2)>_opb->storage){
|
|
return TH_EBADHEADER;
|
|
}
|
|
_tc->comment_lengths=(int *)_ogg_malloc(
|
|
_tc->comments*sizeof(_tc->comment_lengths[0]));
|
|
_tc->user_comments=(char **)_ogg_malloc(
|
|
_tc->comments*sizeof(_tc->user_comments[0]));
|
|
for(i=0;i<_tc->comments;i++){
|
|
len=oc_unpack_length(_opb);
|
|
if(len<0||theorapackB_bytes(_opb)+len>_opb->storage){
|
|
_tc->comments=i;
|
|
return TH_EBADHEADER;
|
|
}
|
|
_tc->comment_lengths[i]=len;
|
|
_tc->user_comments[i]=_ogg_malloc((size_t)len+1);
|
|
oc_unpack_octets(_opb,_tc->user_comments[i],len);
|
|
_tc->user_comments[i][len]='\0';
|
|
}
|
|
return theorapackB_read(_opb,0,&len)<0?TH_EBADHEADER:0;
|
|
}
|
|
|
|
static int oc_setup_unpack(oggpack_buffer *_opb,th_setup_info *_setup){
|
|
int ret;
|
|
/*Read the quantizer tables.*/
|
|
ret=oc_quant_params_unpack(_opb,&_setup->qinfo);
|
|
if(ret<0)return ret;
|
|
/*Read the Huffman trees.*/
|
|
return oc_huff_trees_unpack(_opb,_setup->huff_tables);
|
|
}
|
|
|
|
static void oc_setup_clear(th_setup_info *_setup){
|
|
oc_quant_params_clear(&_setup->qinfo);
|
|
oc_huff_trees_clear(_setup->huff_tables);
|
|
}
|
|
|
|
static int oc_dec_headerin(oggpack_buffer *_opb,th_info *_info,
|
|
th_comment *_tc,th_setup_info **_setup,ogg_packet *_op){
|
|
char buffer[6];
|
|
long val;
|
|
int packtype;
|
|
int ret;
|
|
theorapackB_read(_opb,8,&val);
|
|
packtype=(int)val;
|
|
/*If we're at a data packet and we have received all three headers, we're
|
|
done.*/
|
|
if(!(packtype&0x80)&&_info->frame_width>0&&_tc->vendor!=NULL&&*_setup!=NULL){
|
|
return 0;
|
|
}
|
|
/*Check the codec string.*/
|
|
oc_unpack_octets(_opb,buffer,6);
|
|
if(memcmp(buffer,"theora",6)!=0)return TH_ENOTFORMAT;
|
|
switch(packtype){
|
|
/*Codec info header.*/
|
|
case 0x80:{
|
|
/*This should be the first packet, and we should not already be
|
|
initialized.*/
|
|
if(!_op->b_o_s||_info->frame_width>0)return TH_EBADHEADER;
|
|
ret=oc_info_unpack(_opb,_info);
|
|
if(ret<0)th_info_clear(_info);
|
|
else ret=3;
|
|
}break;
|
|
/*Comment header.*/
|
|
case 0x81:{
|
|
if(_tc==NULL)return TH_EFAULT;
|
|
/*We shoud have already decoded the info header, and should not yet have
|
|
decoded the comment header.*/
|
|
if(_info->frame_width==0||_tc->vendor!=NULL)return TH_EBADHEADER;
|
|
ret=oc_comment_unpack(_opb,_tc);
|
|
if(ret<0)th_comment_clear(_tc);
|
|
else ret=2;
|
|
}break;
|
|
/*Codec setup header.*/
|
|
case 0x82:{
|
|
oc_setup_info *setup;
|
|
if(_tc==NULL||_setup==NULL)return TH_EFAULT;
|
|
/*We should have already decoded the info header and the comment header,
|
|
and should not yet have decoded the setup header.*/
|
|
if(_info->frame_width==0||_tc->vendor==NULL||*_setup!=NULL){
|
|
return TH_EBADHEADER;
|
|
}
|
|
setup=(oc_setup_info *)_ogg_calloc(1,sizeof(*setup));
|
|
ret=oc_setup_unpack(_opb,setup);
|
|
if(ret<0){
|
|
oc_setup_clear(setup);
|
|
_ogg_free(setup);
|
|
}
|
|
else{
|
|
*_setup=setup;
|
|
ret=1;
|
|
}
|
|
}break;
|
|
default:{
|
|
/*We don't know what this header is.*/
|
|
return TH_EBADHEADER;
|
|
}break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
/*Decodes one header packet.
|
|
This should be called repeatedly with the packets at the beginning of the
|
|
stream until it returns 0.*/
|
|
int th_decode_headerin(th_info *_info,th_comment *_tc,
|
|
th_setup_info **_setup,ogg_packet *_op){
|
|
oggpack_buffer opb;
|
|
int ret;
|
|
if(_op==NULL)return TH_EBADHEADER;
|
|
if(_info==NULL)return TH_EFAULT;
|
|
theorapackB_readinit(&opb,_op->packet,_op->bytes);
|
|
ret=oc_dec_headerin(&opb,_info,_tc,_setup,_op);
|
|
return ret;
|
|
}
|
|
|
|
void th_setup_free(th_setup_info *_setup){
|
|
if(_setup!=NULL){
|
|
oc_setup_clear(_setup);
|
|
_ogg_free(_setup);
|
|
}
|
|
}
|