diff options
Diffstat (limited to 'src/lib/ffmpeg_content.cc')
| -rw-r--r-- | src/lib/ffmpeg_content.cc | 239 |
1 files changed, 239 insertions, 0 deletions
diff --git a/src/lib/ffmpeg_content.cc b/src/lib/ffmpeg_content.cc new file mode 100644 index 000000000..42e04e838 --- /dev/null +++ b/src/lib/ffmpeg_content.cc @@ -0,0 +1,239 @@ +#include <libcxml/cxml.h> +#include "ffmpeg_content.h" +#include "ffmpeg_decoder.h" +#include "compose.hpp" +#include "job.h" +#include "util.h" +#include "log.h" + +#include "i18n.h" + +using std::string; +using std::vector; +using std::list; +using boost::shared_ptr; +using boost::lexical_cast; + +int const FFmpegContentProperty::SUBTITLE_STREAMS = 100; +int const FFmpegContentProperty::SUBTITLE_STREAM = 101; +int const FFmpegContentProperty::AUDIO_STREAMS = 102; +int const FFmpegContentProperty::AUDIO_STREAM = 103; + +FFmpegContent::FFmpegContent (boost::filesystem::path f) + : Content (f) + , VideoContent (f) + , AudioContent (f) +{ + +} + +FFmpegContent::FFmpegContent (shared_ptr<const cxml::Node> node) + : Content (node) + , VideoContent (node) + , AudioContent (node) +{ + list<shared_ptr<cxml::Node> > c = node->node_children ("SubtitleStream"); + for (list<shared_ptr<cxml::Node> >::const_iterator i = c.begin(); i != c.end(); ++i) { + _subtitle_streams.push_back (FFmpegSubtitleStream (*i)); + if ((*i)->optional_number_child<int> ("Selected")) { + _subtitle_stream = _subtitle_streams.back (); + } + } + + c = node->node_children ("AudioStream"); + for (list<shared_ptr<cxml::Node> >::const_iterator i = c.begin(); i != c.end(); ++i) { + _audio_streams.push_back (FFmpegAudioStream (*i)); + if ((*i)->optional_number_child<int> ("Selected")) { + _audio_stream = _audio_streams.back (); + } + } +} + +void +FFmpegContent::as_xml (xmlpp::Node* node) const +{ + node->add_child("Type")->add_child_text ("FFmpeg"); + Content::as_xml (node); + VideoContent::as_xml (node); + + boost::mutex::scoped_lock lm (_mutex); + + for (vector<FFmpegSubtitleStream>::const_iterator i = _subtitle_streams.begin(); i != _subtitle_streams.end(); ++i) { + xmlpp::Node* t = node->add_child("SubtitleStream"); + if (_subtitle_stream && *i == _subtitle_stream.get()) { + t->add_child("Selected")->add_child_text("1"); + } + i->as_xml (t); + } + + for (vector<FFmpegAudioStream>::const_iterator i = _audio_streams.begin(); i != _audio_streams.end(); ++i) { + xmlpp::Node* t = node->add_child("AudioStream"); + if (_audio_stream && *i == _audio_stream.get()) { + t->add_child("Selected")->add_child_text("1"); + } + i->as_xml (t); + } +} + +void +FFmpegContent::examine (shared_ptr<Film> film, shared_ptr<Job> job, bool quick) +{ + job->descend (0.5); + Content::examine (film, job, quick); + job->ascend (); + + job->set_progress_unknown (); + + shared_ptr<FFmpegDecoder> decoder (new FFmpegDecoder (film, shared_from_this (), true, false, false, true)); + + ContentVideoFrame video_length = 0; + if (quick) { + video_length = decoder->video_length (); + film->log()->log (String::compose ("Video length obtained from header as %1 frames", decoder->video_length ())); + } else { + while (!decoder->pass ()) { + /* keep going */ + } + + video_length = decoder->video_frame (); + film->log()->log (String::compose ("Video length examined as %1 frames", decoder->video_frame ())); + } + + { + boost::mutex::scoped_lock lm (_mutex); + + _video_length = video_length; + + _subtitle_streams = decoder->subtitle_streams (); + if (!_subtitle_streams.empty ()) { + _subtitle_stream = _subtitle_streams.front (); + } + + _audio_streams = decoder->audio_streams (); + if (!_audio_streams.empty ()) { + _audio_stream = _audio_streams.front (); + } + } + + take_from_video_decoder (decoder); + + Changed (VideoContentProperty::VIDEO_LENGTH); + Changed (FFmpegContentProperty::SUBTITLE_STREAMS); + Changed (FFmpegContentProperty::SUBTITLE_STREAM); + Changed (FFmpegContentProperty::AUDIO_STREAMS); + Changed (FFmpegContentProperty::AUDIO_STREAM); +} + +string +FFmpegContent::summary () const +{ + return String::compose (_("Movie: %1"), file().filename ()); +} + +void +FFmpegContent::set_subtitle_stream (FFmpegSubtitleStream s) +{ + { + boost::mutex::scoped_lock lm (_mutex); + _subtitle_stream = s; + } + + Changed (FFmpegContentProperty::SUBTITLE_STREAM); +} + +void +FFmpegContent::set_audio_stream (FFmpegAudioStream s) +{ + { + boost::mutex::scoped_lock lm (_mutex); + _audio_stream = s; + } + + Changed (FFmpegContentProperty::AUDIO_STREAM); +} + +ContentAudioFrame +FFmpegContent::audio_length () const +{ + if (!_audio_stream) { + return 0; + } + + return video_frames_to_audio_frames (_video_length, audio_frame_rate(), video_frame_rate()); +} + +int +FFmpegContent::audio_channels () const +{ + if (!_audio_stream) { + return 0; + } + + return _audio_stream->channels (); +} + +int +FFmpegContent::audio_frame_rate () const +{ + if (!_audio_stream) { + return 0; + } + + return _audio_stream->frame_rate; +} + +int64_t +FFmpegContent::audio_channel_layout () const +{ + if (!_audio_stream) { + return 0; + } + + return _audio_stream->channel_layout; +} + +bool +operator== (FFmpegSubtitleStream const & a, FFmpegSubtitleStream const & b) +{ + return a.id == b.id; +} + +bool +operator== (FFmpegAudioStream const & a, FFmpegAudioStream const & b) +{ + return a.id == b.id; +} + +FFmpegAudioStream::FFmpegAudioStream (shared_ptr<const cxml::Node> node) +{ + name = node->string_child ("Name"); + id = node->number_child<int> ("Id"); + frame_rate = node->number_child<int> ("FrameRate"); + channel_layout = node->number_child<int64_t> ("ChannelLayout"); +} + +void +FFmpegAudioStream::as_xml (xmlpp::Node* root) const +{ + root->add_child("Name")->add_child_text (name); + root->add_child("Id")->add_child_text (lexical_cast<string> (id)); + root->add_child("FrameRate")->add_child_text (lexical_cast<string> (frame_rate)); + root->add_child("ChannelLayout")->add_child_text (lexical_cast<string> (channel_layout)); +} + +/** Construct a SubtitleStream from a value returned from to_string(). + * @param t String returned from to_string(). + * @param v State file version. + */ +FFmpegSubtitleStream::FFmpegSubtitleStream (shared_ptr<const cxml::Node> node) +{ + name = node->string_child ("Name"); + id = node->number_child<int> ("Id"); +} + +void +FFmpegSubtitleStream::as_xml (xmlpp::Node* root) const +{ + root->add_child("Name")->add_child_text (name); + root->add_child("Id")->add_child_text (lexical_cast<string> (id)); +} |