ExportFFmpeg::ExportFFmpeg()
: ExportPlugin()
{
mEncFormatCtx = NULL; // libavformat's context for our output file
mEncFormatDesc = NULL; // describes our output file to libavformat
mEncAudioStream = NULL; // the output audio stream (may remain NULL)
mEncAudioCodecCtx = NULL; // the encoder for the output audio stream
mEncAudioEncodedBuf = NULL; // buffer to hold frames encoded by the encoder
#define MAX_AUDIO_PACKET_SIZE (128 * 1024)
mEncAudioEncodedBufSiz = 4*MAX_AUDIO_PACKET_SIZE;
mEncAudioFifoOutBuf = NULL; // buffer to read _out_ of the FIFO into
mSampleRate = 0;
mSupportsUTF8 = true;
PickFFmpegLibs(); // DropFFmpegLibs() call is in ExportFFmpeg::Destroy()
int newfmt;
// Adds export types from the export type list
for (newfmt = 0; newfmt < FMT_LAST; newfmt++)
{
wxString shortname(ExportFFmpegOptions::fmts[newfmt].shortname);
//Don't hide export types when there's no av-libs, and don't hide FMT_OTHER
if (newfmt < FMT_OTHER && FFmpegLibsInst->ValidLibsLoaded())
{
// Format/Codec support is compiled in?
AVOutputFormat *avoformat = FFmpegLibsInst->guess_format(shortname.mb_str(), NULL, NULL);
AVCodec *avcodec = FFmpegLibsInst->avcodec_find_encoder(ExportFFmpegOptions::fmts[newfmt].codecid);
if (avoformat == NULL || avcodec == NULL)
{
ExportFFmpegOptions::fmts[newfmt].compiledIn = false;
continue;
}
}
int fmtindex = AddFormat() - 1;
SetFormat(ExportFFmpegOptions::fmts[newfmt].name,fmtindex);
AddExtension(ExportFFmpegOptions::fmts[newfmt].extension,fmtindex);
// For some types add other extensions
switch(newfmt)
{
case FMT_M4A:
AddExtension(wxString(wxT("3gp")),fmtindex);
AddExtension(wxString(wxT("m4r")),fmtindex);
AddExtension(wxString(wxT("mp4")),fmtindex);
break;
case FMT_WMA2:
AddExtension(wxString(wxT("asf")),fmtindex);
AddExtension(wxString(wxT("wmv")),fmtindex);
break;
default:
break;
}
SetMaxChannels(ExportFFmpegOptions::fmts[newfmt].maxchannels,fmtindex);
SetCanMetaData(ExportFFmpegOptions::fmts[newfmt].canmetadata,fmtindex);
SetDescription(ExportFFmpegOptions::fmts[newfmt].description,fmtindex);
}
}
ExportFLAC::ExportFLAC()
: ExportPlugin()
{
AddFormat();
SetFormat(wxT("FLAC"),0);
AddExtension(wxT("flac"),0);
SetMaxChannels(FLAC__MAX_CHANNELS,0);
SetCanMetaData(true,0);
SetDescription(_("FLAC Files"),0);
}
ExportMP2::ExportMP2()
: ExportPlugin()
{
AddFormat();
SetFormat(wxT("MP2"),0);
AddExtension(wxT("mp2"),0);
SetMaxChannels(2,0);
SetCanMetaData(true,0);
SetDescription(_("MP2 Files"),0);
}
ExportOGG::ExportOGG()
: ExportPlugin()
{
AddFormat();
SetFormat(wxT("OGG"),0);
AddExtension(wxT("ogg"),0);
SetMaxChannels(255,0);
SetCanMetaData(true,0);
SetDescription(_("Ogg Vorbis Files"),0);
}
ExportFFmpeg::ExportFFmpeg()
: ExportPlugin()
{
mEncFormatDesc = NULL; // describes our output file to libavformat
mEncAudioStream = NULL; // the output audio stream (may remain NULL)
#define MAX_AUDIO_PACKET_SIZE (128 * 1024)
mEncAudioFifoOutBufSiz = 0;
mSampleRate = 0;
mSupportsUTF8 = true;
PickFFmpegLibs(); // DropFFmpegLibs() call is in ExportFFmpeg destructor
int avfver = FFmpegLibsInst->ValidLibsLoaded() ? avformat_version() : 0;
int newfmt;
// Adds export types from the export type list
for (newfmt = 0; newfmt < FMT_LAST; newfmt++)
{
wxString shortname(ExportFFmpegOptions::fmts[newfmt].shortname);
//Don't hide export types when there's no av-libs, and don't hide FMT_OTHER
if (newfmt < FMT_OTHER && FFmpegLibsInst->ValidLibsLoaded())
{
// Format/Codec support is compiled in?
AVOutputFormat *avoformat = av_guess_format(shortname.mb_str(), NULL, NULL);
AVCodec *avcodec = avcodec_find_encoder(ExportFFmpegOptions::fmts[newfmt].codecid);
if (avoformat == NULL || avcodec == NULL)
{
ExportFFmpegOptions::fmts[newfmt].compiledIn = false;
continue;
}
}
int fmtindex = AddFormat() - 1;
SetFormat(ExportFFmpegOptions::fmts[newfmt].name,fmtindex);
AddExtension(ExportFFmpegOptions::fmts[newfmt].extension,fmtindex);
// For some types add other extensions
switch(newfmt)
{
case FMT_M4A:
AddExtension(wxString(wxT("3gp")),fmtindex);
AddExtension(wxString(wxT("m4r")),fmtindex);
AddExtension(wxString(wxT("mp4")),fmtindex);
break;
case FMT_WMA2:
AddExtension(wxString(wxT("asf")),fmtindex);
AddExtension(wxString(wxT("wmv")),fmtindex);
break;
default:
break;
}
SetMaxChannels(ExportFFmpegOptions::fmts[newfmt].maxchannels,fmtindex);
SetDescription(ExportFFmpegOptions::fmts[newfmt].description,fmtindex);
int canmeta = ExportFFmpegOptions::fmts[newfmt].canmetadata;
if (canmeta && (canmeta == AV_VERSION_INT(-1,-1,-1) || canmeta <= avfver))
{
SetCanMetaData(true,fmtindex);
}
else
{
SetCanMetaData(false,fmtindex);
}
}
}