本文整理汇总了C++中LLAPRFile::eof方法的典型用法代码示例。如果您正苦于以下问题：C++ LLAPRFile::eof方法的具体用法？C++ LLAPRFile::eof怎么用？C++ LLAPRFile::eof使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类LLAPRFile的用法示例。
在下文中一共展示了LLAPRFile::eof方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: encode_vorbis_file
S32 encode_vorbis_file(const std::string& in_fname, const std::string& out_fname)
{
#define READ_BUFFER 1024
unsigned char readbuffer[READ_BUFFER*4+44]; /* out of the data segment, not the stack */ /*Flawfinder: ignore*/
ogg_stream_state os; /* take physical pages, weld into a logical stream of packets */
ogg_page og; /* one Ogg bitstream page. Vorbis packets are inside */
ogg_packet op; /* one raw packet of data for decode */
vorbis_info vi; /* struct that stores all the static vorbis bitstream settings */
vorbis_comment vc; /* struct that stores all the user comments */
vorbis_dsp_state vd; /* central working state for the packet->PCM decoder */
vorbis_block vb; /* local working space for packet->PCM decode */
int eos=0;
int result;
U16 num_channels = 0;
U32 sample_rate = 0;
U32 bits_per_sample = 0;
S32 format_error = 0;
std::string error_msg;
if ((format_error = check_for_invalid_wav_formats(in_fname, error_msg)))
{
llwarns << error_msg << ": " << in_fname << llendl;
return(format_error);
}
#if 1
unsigned char wav_header[44]; /*Flawfinder: ignore*/
S32 data_left = 0;
LLAPRFile infile ;
infile.open(in_fname,LL_APR_RB);
if (!infile.getFileHandle())
{
llwarns << "Couldn't open temporary ogg file for writing: " << in_fname
<< llendl;
return(LLVORBISENC_SOURCE_OPEN_ERR);
}
LLAPRFile outfile ;
outfile.open(out_fname,LL_APR_WPB);
if (!outfile.getFileHandle())
{
llwarns << "Couldn't open upload sound file for reading: " << in_fname
<< llendl;
return(LLVORBISENC_DEST_OPEN_ERR);
}
// parse the chunks
U32 chunk_length = 0;
U32 file_pos = 12; // start at the first chunk (usually fmt but not always)
while (infile.eof() != APR_EOF)
{
infile.seek(APR_SET,file_pos);
infile.read(wav_header, 44);
chunk_length = ((U32) wav_header[7] << 24)
+ ((U32) wav_header[6] << 16)
+ ((U32) wav_header[5] << 8)
+ wav_header[4];
// llinfos << "chunk found: '" << wav_header[0] << wav_header[1] << wav_header[2] << wav_header[3] << "'" << llendl;
if (!(strncmp((char *)&(wav_header[0]),"fmt ",4)))
{
num_channels = ((U16) wav_header[11] << 8) + wav_header[10];
sample_rate = ((U32) wav_header[15] << 24)
+ ((U32) wav_header[14] << 16)
+ ((U32) wav_header[13] << 8)
+ wav_header[12];
bits_per_sample = ((U16) wav_header[23] << 8) + wav_header[22];
}
else if (!(strncmp((char *)&(wav_header[0]),"data",4)))
{
infile.seek(APR_SET,file_pos+8);
// leave the file pointer at the beginning of the data chunk data
data_left = chunk_length;
break;
}
file_pos += (chunk_length + 8);
chunk_length = 0;
}
/********** Encode setup ************/
/* choose an encoding mode */
/* (mode 0: 44kHz stereo uncoupled, roughly 128kbps VBR) */
vorbis_info_init(&vi);
// always encode to mono
// SL-52913 & SL-53779 determined this quality level to be our 'good
// enough' general-purpose quality level with a nice low bitrate.
//.........这里部分代码省略.........