bool media_input::stereo_layout_is_supported(parameters::stereo_layout_t layout, bool) const
{
if (video_streams() < 1)
{
return false;
}
assert(_active_video_stream >= 0);
assert(_active_video_stream < video_streams());
int o, s;
get_video_stream(_active_video_stream, o, s);
const video_frame &t = _media_objects[o].video_frame_template(s);
bool supported = true;
if (((layout == parameters::layout_left_right || layout == parameters::layout_left_right_half) && t.raw_width % 2 != 0)
|| ((layout == parameters::layout_top_bottom || layout == parameters::layout_top_bottom_half) && t.raw_height % 2 != 0)
|| (layout == parameters::layout_even_odd_rows && t.raw_height % 2 != 0)
|| (layout == parameters::layout_separate && !_supports_stereo_layout_separate))
{
supported = false;
}
return supported;
}
void media_input::get_video_stream(int stream, int &media_object, int &media_object_video_stream) const
{
assert(stream < video_streams());
size_t i = 0;
while (_media_objects[i].video_streams() < stream + 1)
{
stream -= _media_objects[i].video_streams();
i++;
}
media_object = i;
media_object_video_stream = stream;
}
void media_input::select_video_stream(int video_stream)
{
if (_have_active_video_read)
{
(void)finish_video_frame_read();
}
if (_have_active_audio_read)
{
(void)finish_audio_blob_read();
}
if (_have_active_subtitle_read)
{
(void)finish_subtitle_box_read();
}
assert(video_stream >= 0);
assert(video_stream < video_streams());
if (_video_frame.stereo_layout == parameters::layout_separate)
{
_active_video_stream = 0;
for (size_t i = 0; i < _media_objects.size(); i++)
{
for (int j = 0; j < _media_objects[i].video_streams(); j++)
{
_media_objects[i].video_stream_set_active(j, true);
}
}
}
else
{
_active_video_stream = video_stream;
int o, s;
get_video_stream(_active_video_stream, o, s);
for (size_t i = 0; i < _media_objects.size(); i++)
{
for (int j = 0; j < _media_objects[i].video_streams(); j++)
{
_media_objects[i].video_stream_set_active(j, (i == static_cast<size_t>(o) && j == s));
}
}
}
// Re-set video frame template
parameters::stereo_layout_t stereo_layout_bak = _video_frame.stereo_layout;
bool stereo_layout_swap_bak = _video_frame.stereo_layout_swap;
int o, s;
get_video_stream(_active_video_stream, o, s);
_video_frame = _media_objects[o].video_frame_template(s);
_video_frame.stereo_layout = stereo_layout_bak;
_video_frame.stereo_layout_swap = stereo_layout_swap_bak;
_video_frame.set_view_dimensions();
}
void media_input::get_video_stream(int stream, int &media_object, int &media_object_video_stream) const
{
assert(stream < video_streams());
for (size_t i = 0; i < _media_objects.size(); i++)
{
if (_media_objects[i].video_streams() < stream + 1)
{
stream -= _media_objects[i].video_streams();
continue;
}
media_object = i;
media_object_video_stream = stream;
break;
}
}
void media_input::select_video_stream(int video_stream)
{
if (_have_active_video_read)
{
(void)finish_video_frame_read();
}
if (_have_active_audio_read)
{
(void)finish_audio_blob_read();
}
if (_have_active_subtitle_read)
{
(void)finish_subtitle_box_read();
}
assert(video_stream >= 0);
assert(video_stream < video_streams());
if (_video_frame.stereo_layout == video_frame::separate)
{
_active_video_stream = 0;
for (size_t i = 0; i < _media_objects.size(); i++)
{
for (int j = 0; j < _media_objects[i].video_streams(); j++)
{
_media_objects[i].video_stream_set_active(j, true);
}
}
}
else
{
_active_video_stream = video_stream;
int o, s;
get_video_stream(_active_video_stream, o, s);
for (size_t i = 0; i < _media_objects.size(); i++)
{
for (int j = 0; j < _media_objects[i].video_streams(); j++)
{
_media_objects[i].video_stream_set_active(j, (i == static_cast<size_t>(o) && j == s));
}
}
}
}
void media_input::open(const std::vector<std::string> &urls, const device_request &dev_request)
{
assert(urls.size() > 0);
// Open media objects
_is_device = dev_request.is_device();
_media_objects.resize(urls.size());
for (size_t i = 0; i < urls.size(); i++)
{
_media_objects[i].open(urls[i], dev_request);
}
// Construct id for this input
_id = basename(_media_objects[0].url());
for (size_t i = 1; i < _media_objects.size(); i++)
{
_id += '/';
_id += basename(_media_objects[i].url());
}
// Gather metadata
for (size_t i = 0; i < _media_objects.size(); i++)
{
// Note that we may have multiple identical tag names in our metadata
for (size_t j = 0; j < _media_objects[i].tags(); j++)
{
_tag_names.push_back(_media_objects[i].tag_name(j));
_tag_values.push_back(_media_objects[i].tag_value(j));
}
}
// Gather streams and stream names
for (size_t i = 0; i < _media_objects.size(); i++)
{
for (int j = 0; j < _media_objects[i].video_streams(); j++)
{
_video_stream_names.push_back(_media_objects[i].video_frame_template(j).format_info());
}
}
if (_video_stream_names.size() > 1)
{
for (size_t i = 0; i < _video_stream_names.size(); i++)
{
_video_stream_names[i].insert(0,
std::string(1, '#') + str::from(i + 1) + '/'
+ str::from(_video_stream_names.size()) + ": ");
}
}
for (size_t i = 0; i < _media_objects.size(); i++)
{
for (int j = 0; j < _media_objects[i].audio_streams(); j++)
{
_audio_stream_names.push_back(_media_objects[i].audio_blob_template(j).format_info());
}
}
if (_audio_stream_names.size() > 1)
{
for (size_t i = 0; i < _audio_stream_names.size(); i++)
{
_audio_stream_names[i].insert(0,
std::string(1, '#') + str::from(i + 1) + '/'
+ str::from(_audio_stream_names.size()) + ": ");
}
}
for (size_t i = 0; i < _media_objects.size(); i++)
{
for (int j = 0; j < _media_objects[i].subtitle_streams(); j++)
{
_subtitle_stream_names.push_back(_media_objects[i].subtitle_box_template(j).format_info());
}
}
if (_subtitle_stream_names.size() > 1)
{
for (size_t i = 0; i < _subtitle_stream_names.size(); i++)
{
_subtitle_stream_names[i].insert(0,
std::string(1, '#') + str::from(i + 1) + '/'
+ str::from(_subtitle_stream_names.size()) + ": ");
}
}
// Set duration information
_duration = std::numeric_limits<int64_t>::max();
for (size_t i = 0; i < _media_objects.size(); i++)
{
for (int j = 0; j < _media_objects[i].video_streams(); j++)
{
int64_t d = _media_objects[i].video_duration(j);
if (d < _duration)
{
_duration = d;
}
}
for (int j = 0; j < _media_objects[i].audio_streams(); j++)
{
int64_t d = _media_objects[i].audio_duration(j);
if (d < _duration)
{
_duration = d;
}
}
// Ignore subtitle stream duration; it seems unreliable and is not important anyway.
}
// Skip advertisement in 3dtv.at movies. Only works for single media objects.
try { _initial_skip = str::to<int64_t>(tag_value("StereoscopicSkip")); } catch (...) { }
// Find stereo layout and set active video stream(s)
_supports_stereo_layout_separate = false;
if (video_streams() == 2)
{
int o0, o1, v0, v1;
get_video_stream(0, o0, v0);
get_video_stream(1, o1, v1);
video_frame t0 = _media_objects[o0].video_frame_template(v0);
video_frame t1 = _media_objects[o1].video_frame_template(v1);
if (t0.width == t1.width
&& t0.height == t1.height
&& (t0.aspect_ratio <= t1.aspect_ratio && t0.aspect_ratio >= t1.aspect_ratio)
&& t0.layout == t1.layout
&& t0.color_space == t1.color_space
&& t0.value_range == t1.value_range
&& t0.chroma_location == t1.chroma_location)
{
_supports_stereo_layout_separate = true;
}
}
if (_supports_stereo_layout_separate)
{
_active_video_stream = 0;
int o, s;
get_video_stream(_active_video_stream, o, s);
_video_frame = _media_objects[o].video_frame_template(s);
_video_frame.stereo_layout = parameters::layout_separate;
}
else if (video_streams() > 0)
{
_active_video_stream = 0;
int o, s;
get_video_stream(_active_video_stream, o, s);
_video_frame = _media_objects[o].video_frame_template(s);
}
else
{
_active_video_stream = -1;
}
if (_active_video_stream >= 0)
{
select_video_stream(_active_video_stream);
}
// Set active audio stream
_active_audio_stream = (audio_streams() > 0 ? 0 : -1);
if (_active_audio_stream >= 0)
{
int o, s;
get_audio_stream(_active_audio_stream, o, s);
_audio_blob = _media_objects[o].audio_blob_template(s);
select_audio_stream(_active_audio_stream);
}
// Set active subtitle stream
_active_subtitle_stream = -1; // no subtitles by default
// Print summary
msg::inf(_("Input:"));
for (int i = 0; i < video_streams(); i++)
{
int o, s;
get_video_stream(i, o, s);
msg::inf(4, _("Video %s: %s"), video_stream_name(i).c_str(),
_media_objects[o].video_frame_template(s).format_name().c_str());
}
if (video_streams() == 0)
{
msg::inf(4, _("No video."));
}
for (int i = 0; i < audio_streams(); i++)
{
int o, s;
get_audio_stream(i, o, s);
msg::inf(4, _("Audio %s: %s"), audio_stream_name(i).c_str(),
_media_objects[o].audio_blob_template(s).format_name().c_str());
}
if (audio_streams() == 0)
{
msg::inf(4, _("No audio."));
}
for (int i = 0; i < subtitle_streams(); i++)
{
int o, s;
get_subtitle_stream(i, o, s);
msg::inf(4, _("Subtitle %s: %s"), subtitle_stream_name(i).c_str(),
_media_objects[o].subtitle_box_template(s).format_name().c_str());
}
if (subtitle_streams() == 0)
{
msg::inf(4, _("No subtitle."));
}
msg::inf(4, _("Duration: %g seconds"), duration() / 1e6f);
if (video_streams() > 0)
{
msg::inf(4, _("Stereo layout: %s"), parameters::stereo_layout_to_string(
video_frame_template().stereo_layout, video_frame_template().stereo_layout_swap).c_str());
}
}
void media_input::open(const std::vector<std::string> &urls)
{
assert(urls.size() > 0);
// Open media objects
_media_objects.resize(urls.size());
for (size_t i = 0; i < urls.size(); i++)
{
_media_objects[i].open(urls[i]);
}
// Construct id for this input
_id = basename(_media_objects[0].url());
for (size_t i = 1; i < _media_objects.size(); i++)
{
_id += '/';
_id += basename(_media_objects[i].url());
}
// Gather metadata
for (size_t i = 0; i < _media_objects.size(); i++)
{
std::string pfx = (_media_objects.size() == 1 ? "" : str::from(i + 1) + " - ");
for (size_t j = 0; j < _media_objects[i].tags(); j++)
{
_tag_names.push_back(pfx + _media_objects[i].tag_name(j));
_tag_values.push_back(pfx + _media_objects[i].tag_value(j));
}
}
// Gather streams and stream names
for (size_t i = 0; i < _media_objects.size(); i++)
{
std::string pfx = (_media_objects.size() == 1 ? "" : str::from(i + 1) + " - ");
for (int j = 0; j < _media_objects[i].video_streams(); j++)
{
std::string pfx2 = (_media_objects[i].video_streams() == 1 ? "" : str::from(j + 1) + " - ");
_video_stream_names.push_back(pfx + pfx2
+ _media_objects[i].video_frame_template(j).format_info());
}
}
for (size_t i = 0; i < _media_objects.size(); i++)
{
std::string pfx = (_media_objects.size() == 1 ? "" : str::from(i + 1) + " - ");
for (int j = 0; j < _media_objects[i].audio_streams(); j++)
{
std::string pfx2 = (_media_objects[i].audio_streams() == 1 ? "" : str::from(j + 1) + " - ");
_audio_stream_names.push_back(pfx + pfx2
+ _media_objects[i].audio_blob_template(j).format_info());
}
}
for (size_t i = 0; i < _media_objects.size(); i++)
{
std::string pfx = (_media_objects.size() == 1 ? "" : str::from(i + 1) + " - ");
for (int j = 0; j < _media_objects[i].subtitle_streams(); j++)
{
std::string pfx2 = (_media_objects[i].subtitle_streams() == 1 ? "" : str::from(j + 1) + " - ");
_subtitle_stream_names.push_back(pfx + pfx2
+ _media_objects[i].subtitle_box_template(j).format_info());
}
}
// Set duration information
_duration = std::numeric_limits<int64_t>::max();
for (size_t i = 0; i < _media_objects.size(); i++)
{
for (int j = 0; j < _media_objects[i].video_streams(); j++)
{
int64_t d = _media_objects[i].video_duration(j);
if (d < _duration)
{
_duration = d;
}
}
for (int j = 0; j < _media_objects[i].audio_streams(); j++)
{
int64_t d = _media_objects[i].audio_duration(j);
if (d < _duration)
{
_duration = d;
}
}
for (int j = 0; j < _media_objects[i].subtitle_streams(); j++)
{
// int64_t d = _media_objects[i].subtitle_duration(j);
// if (d < _duration)
// {
// _duration = d;
// }
}
}
// Skip advertisement in 3dtv.at movies. Only works for single media objects.
try { _initial_skip = str::to<int64_t>(tag_value("StereoscopicSkip")); } catch (...) { }
// Find stereo layout and set active video stream(s)
_supports_stereo_layout_separate = false;
if (video_streams() == 2)
{
int o0, o1, v0, v1;
get_video_stream(0, o0, v0);
get_video_stream(1, o1, v1);
video_frame t0 = _media_objects[o0].video_frame_template(v0);
video_frame t1 = _media_objects[o1].video_frame_template(v1);
if (t0.width == t1.width
&& t0.height == t1.height
&& (t0.aspect_ratio <= t1.aspect_ratio && t0.aspect_ratio >= t1.aspect_ratio)
&& t0.layout == t1.layout
&& t0.color_space == t1.color_space
&& t0.value_range == t1.value_range
&& t0.chroma_location == t1.chroma_location)
{
_supports_stereo_layout_separate = true;
}
}
if (_supports_stereo_layout_separate)
{
_active_video_stream = 0;
int o, s;
get_video_stream(_active_video_stream, o, s);
_video_frame = _media_objects[o].video_frame_template(s);
_video_frame.stereo_layout = video_frame::separate;
}
else if (video_streams() > 0)
{
_active_video_stream = 0;
int o, s;
get_video_stream(_active_video_stream, o, s);
_video_frame = _media_objects[o].video_frame_template(s);
}
else
{
_active_video_stream = -1;
}
if (_active_video_stream >= 0)
{
select_video_stream(_active_video_stream);
}
// Set active audio stream
_active_audio_stream = (audio_streams() > 0 ? 0 : -1);
if (_active_audio_stream >= 0)
{
int o, s;
get_audio_stream(_active_audio_stream, o, s);
_audio_blob = _media_objects[o].audio_blob_template(s);
select_audio_stream(_active_audio_stream);
}
// Set active subtitle stream
_active_subtitle_stream = -1; // no subtitles by default
// Print summary
msg::inf("Input:");
for (int i = 0; i < video_streams(); i++)
{
int o, s;
get_video_stream(i, o, s);
msg::inf(" Video %s: %s", video_stream_name(i).c_str(),
_media_objects[o].video_frame_template(s).format_name().c_str());
}
if (video_streams() == 0)
{
msg::inf(" No video.");
}
for (int i = 0; i < audio_streams(); i++)
{
int o, s;
get_audio_stream(i, o, s);
msg::inf(" Audio %s: %s", audio_stream_name(i).c_str(),
_media_objects[o].audio_blob_template(s).format_name().c_str());
}
if (audio_streams() == 0)
{
msg::inf(" No audio.");
}
for (int i = 0; i < subtitle_streams(); i++)
{
int o, s;
get_subtitle_stream(i, o, s);
msg::inf(" Subtitle %s: %s", subtitle_stream_name(i).c_str(),
_media_objects[o].subtitle_box_template(s).format_name().c_str());
}
if (subtitle_streams() == 0)
{
msg::inf(" No subtitles.");
}
msg::inf(" Duration: %g seconds", duration() / 1e6f);
if (video_streams() > 0)
{
msg::inf(" Stereo layout: %s", video_frame::stereo_layout_to_string(
video_frame_template().stereo_layout, video_frame_template().stereo_layout_swap).c_str());
}
}