X-Git-Url: https://git.carlh.net/gitweb/?p=dcpomatic.git;a=blobdiff_plain;f=src%2Flib%2Ftext_decoder.cc;h=c691f795d2d5133f7b64e63a44275a72ce0abf30;hp=5510ccdfcfdc7ba38a404763348bbefc008de123;hb=486038a7eb23498e1e5097e73a32929d889ca505;hpb=9de850055268072ee2af61198be62e91881d1e79 diff --git a/src/lib/text_decoder.cc b/src/lib/text_decoder.cc index 5510ccdfc..c691f795d 100644 --- a/src/lib/text_decoder.cc +++ b/src/lib/text_decoder.cc @@ -41,12 +41,10 @@ using namespace dcpomatic; TextDecoder::TextDecoder ( Decoder* parent, - shared_ptr content, - ContentTime first + shared_ptr content ) : DecoderPart (parent) , _content (content) - , _position (first) { } @@ -63,53 +61,75 @@ void TextDecoder::emit_bitmap_start (ContentBitmapText const& bitmap) { BitmapStart (bitmap); - _position = bitmap.from(); + maybe_set_position(bitmap.from()); } +static +string +escape_text (string text) +{ + /* We must escape some things, otherwise they might confuse our subtitle + renderer (which uses entities and some HTML-esque markup to do bold/italic etc.) + */ + boost::algorithm::replace_all(text, "&", "&"); + boost::algorithm::replace_all(text, "<", "<"); + boost::algorithm::replace_all(text, ">", ">"); + return text; +} + + +static void -TextDecoder::emit_plain_start (ContentTime from, vector subtitles) +set_forced_appearance(shared_ptr content, StringText& subtitle) { + if (content->colour()) { + subtitle.set_colour(*content->colour()); + } + if (content->effect_colour()) { + subtitle.set_effect_colour(*content->effect_colour()); + } + if (content->effect()) { + subtitle.set_effect(*content->effect()); + } + if (content->fade_in()) { + subtitle.set_fade_up_time(dcp::Time(content->fade_in()->seconds(), 1000)); + } + if (content->fade_out()) { + subtitle.set_fade_down_time (dcp::Time(content->fade_out()->seconds(), 1000)); + } +} + + +void +TextDecoder::emit_plain_start (ContentTime from, vector subtitles, dcp::Standard valign_standard) +{ + vector string_texts; + for (auto& subtitle: subtitles) { - /* We must escape some things, otherwise they might confuse our subtitle - renderer (which uses entities and some HTML-esque markup to do bold/italic etc.) - */ - string text = subtitle.text(); - boost::algorithm::replace_all(text, "&", "&"); - boost::algorithm::replace_all(text, "<", "<"); - boost::algorithm::replace_all(text, ">", ">"); - subtitle.set_text (text); - - /* Set any forced appearance */ - if (content()->colour()) { - subtitle.set_colour(*content()->colour()); - } - if (content()->effect_colour()) { - subtitle.set_effect_colour(*content()->effect_colour()); - } - if (content()->effect()) { - subtitle.set_effect(*content()->effect()); - } - if (content()->fade_in()) { - subtitle.set_fade_up_time(dcp::Time(content()->fade_in()->seconds(), 1000)); - } - if (content()->fade_out()) { - subtitle.set_fade_down_time (dcp::Time(content()->fade_out()->seconds(), 1000)); - } + auto string_text = StringText( + subtitle, + content()->outline_width(), + subtitle.font() ? content()->get_font(*subtitle.font()) : shared_ptr(), + valign_standard + ); + string_text.set_text(escape_text(string_text.text())); + set_forced_appearance(content(), string_text); + string_texts.push_back(string_text); } - PlainStart(ContentStringText(from, subtitles)); - _position = from; + PlainStart(ContentStringText(from, string_texts)); + maybe_set_position(from); } void -TextDecoder::emit_plain_start (ContentTime from, sub::Subtitle const & subtitle) +TextDecoder::emit_plain_start (ContentTime from, sub::Subtitle const & sub_subtitle) { /* See if our next subtitle needs to be vertically placed on screen by us */ bool needs_placement = false; optional bottom_line; - for (auto line: subtitle.lines) { + for (auto line: sub_subtitle.lines) { if (!line.vertical_position.reference || (line.vertical_position.line && !line.vertical_position.lines) || line.vertical_position.reference.get() == sub::TOP_OF_SUBTITLE) { needs_placement = true; if (!bottom_line || bottom_line.get() < line.vertical_position.line.get()) { @@ -120,7 +140,7 @@ TextDecoder::emit_plain_start (ContentTime from, sub::Subtitle const & subtitle) /* Find the lowest proportional position */ optional lowest_proportional; - for (auto line: subtitle.lines) { + for (auto line: sub_subtitle.lines) { if (line.vertical_position.proportional) { if (!lowest_proportional) { lowest_proportional = line.vertical_position.proportional; @@ -130,8 +150,8 @@ TextDecoder::emit_plain_start (ContentTime from, sub::Subtitle const & subtitle) } } - vector out; - for (auto line: subtitle.lines) { + vector string_texts; + for (auto line: sub_subtitle.lines) { for (auto block: line.blocks) { if (!block.font_size.specified()) { @@ -147,10 +167,10 @@ TextDecoder::emit_plain_start (ContentTime from, sub::Subtitle const & subtitle) switch (line.vertical_position.reference.get_value_or(sub::BOTTOM_OF_SCREEN)) { case sub::BOTTOM_OF_SCREEN: case sub::TOP_OF_SUBTITLE: - /* This 1.015 is an arbitrary value to lift the bottom sub off the bottom + /* This 0.9 is an arbitrary value to lift the bottom sub off the bottom of the screen a bit to a pleasing degree. */ - v_position = 1.015 - + v_position = 0.9 - (1 + bottom_line.get() - line.vertical_position.line.get()) * multiplier; v_align = dcp::VAlign::TOP; @@ -220,41 +240,49 @@ TextDecoder::emit_plain_start (ContentTime from, sub::Subtitle const & subtitle) content by the other emit_plain_start() above. */ - out.push_back ( - dcp::SubtitleString ( - string(TEXT_FONT_ID), - block.italic, - block.bold, - block.underline, - block.colour.dcp(), - block.font_size.points (72 * 11), - 1.0, - dcp::Time (from.seconds(), 1000), - /* XXX: hmm; this is a bit ugly (we don't know the to time yet) */ - dcp::Time (), - h_position, - h_align, - v_position, - v_align, - dcp::Direction::LTR, - block.text, - dcp::Effect::NONE, - block.effect_colour.get_value_or(sub::Colour(0, 0, 0)).dcp(), - /* Hack: we should use subtitle.fade_up and subtitle.fade_down here - but the times of these often don't have a frame rate associated - with them so the sub::Time won't convert them to milliseconds without - throwing an exception. Since only DCP subs fill those in (and we don't - use libsub for DCP subs) we can cheat by just putting 0 in here. - */ - dcp::Time (), - dcp::Time (), - 0 - ) + auto dcp_subtitle = dcp::SubtitleString( + optional(), + block.italic, + block.bold, + block.underline, + block.colour.dcp(), + block.font_size.points (72 * 11), + 1.0, + dcp::Time (from.seconds(), 1000), + /* XXX: hmm; this is a bit ugly (we don't know the to time yet) */ + dcp::Time (), + h_position, + h_align, + v_position, + v_align, + dcp::Direction::LTR, + escape_text(block.text), + dcp::Effect::NONE, + block.effect_colour.get_value_or(sub::Colour(0, 0, 0)).dcp(), + /* Hack: we should use subtitle.fade_up and subtitle.fade_down here + but the times of these often don't have a frame rate associated + with them so the sub::Time won't convert them to milliseconds without + throwing an exception. Since only DCP subs fill those in (and we don't + use libsub for DCP subs) we can cheat by just putting 0 in here. + */ + dcp::Time (), + dcp::Time (), + 0 + ); + + auto string_text = StringText( + dcp_subtitle, + content()->outline_width(), + content()->get_font(block.font.get_value_or("")), + dcp::Standard::SMPTE ); + set_forced_appearance(content(), string_text); + string_texts.push_back(string_text); } } - emit_plain_start (from, out); + PlainStart(ContentStringText(from, string_texts)); + maybe_set_position(from); } @@ -266,9 +294,9 @@ TextDecoder::emit_stop (ContentTime to) void -TextDecoder::emit_plain (ContentTimePeriod period, vector subtitles) +TextDecoder::emit_plain (ContentTimePeriod period, vector subtitles, dcp::Standard valign_standard) { - emit_plain_start (period.from, subtitles); + emit_plain_start (period.from, subtitles, valign_standard); emit_stop (period.to); } @@ -298,3 +326,13 @@ TextDecoder::seek () { _position = ContentTime (); } + + +void +TextDecoder::maybe_set_position (dcpomatic::ContentTime position) +{ + if (!_position || position > *_position) { + _position = position; + } +} +