94 lines
2.2 KiB
C++
94 lines
2.2 KiB
C++
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#include <list>
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#include <boost/foreach.hpp>
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#include "InputMediaFile.hpp"
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#include "av/InputFormatContext.hpp"
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#include "cover/CoverArtGrabber.hpp"
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namespace Transcode
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{
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bool getStreamType(enum AVMediaType type, Transcode::Stream::Type& streamType)
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{
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switch (type) {
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case AVMEDIA_TYPE_VIDEO: streamType = Transcode::Stream::Video; return true;
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case AVMEDIA_TYPE_AUDIO: streamType = Transcode::Stream::Audio; return true;
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case AVMEDIA_TYPE_SUBTITLE: streamType = Transcode::Stream::Subtitle; return true;
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default:
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return false;
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}
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}
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InputMediaFile::InputMediaFile(const boost::filesystem::path& p)
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: _path(p)
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{
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Av::InputFormatContext input(_path);
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input.findStreamInfo();
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// Calculate estimated duration
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if (input.getDurationSecs())
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_duration = boost::posix_time::seconds(input.getDurationSecs() + 1);
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// Get input streams
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std::vector<Av::Stream> avStreams = input.getStreams();
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std::list<enum AVMediaType> avMediaTypes; // List of encountered streams
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for (std::size_t avStreamId = 0; avStreamId < avStreams.size(); ++avStreamId)
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{
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Av::Stream& avStream(avStreams[avStreamId]);
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Stream::Type type;
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if (getStreamType(avStream.getCodecContext().getType(), type))
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{
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// Reject Video stream hat are in fact cover arts
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if (avStream.hasAttachedPic())
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continue;
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avMediaTypes.push_back(avStream.getCodecContext().getType());
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_streams.push_back( Stream(avStreamId,
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type,
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avStream.getMetadata().get("language"), // TODO define somewhere else?
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avStream.getCodecContext().getCodecDesc()
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));
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}
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}
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avMediaTypes.unique();
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// Scan for best streams
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BOOST_FOREACH(enum AVMediaType type, avMediaTypes)
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{
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Av::Stream::Idx index;
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if (input.getBestStreamIdx(type, index))
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{
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Stream::Type streamType;
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if (getStreamType(type, streamType))
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_bestStreams.insert(std::make_pair( streamType, index) );
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}
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else
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std::cerr << "Cannot find best stream for type " << type << std::endl;
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}
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_covers = CoverArt::Grabber::getFromInputFormatContext(input);
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}
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std::vector<Stream>
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InputMediaFile::getStreams(Stream::Type type) const
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{
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std::vector<Stream> res;
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BOOST_FOREACH(const Stream& stream, _streams)
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{
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if (stream.getType() == type)
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res.push_back(stream);
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}
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return res;
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}
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} // namespace Transcode
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