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Updated SMPTE-TT header.

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Updated header according to SMPTE-TT TTML guidelines.
This commit is contained in:
Saurabh Shrivastava 2016-12-29 22:50:15 +05:30 committed by GitHub
parent 40d97292d2
commit 2b94b5e316
1 changed files with 34 additions and 14 deletions
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48
src/lib_ccx/ccx_encoders_common.c
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@ -61,18 +61,39 @@ Style: Default,Arial,20,&H00FFFFFF,&H000000FF,&H00000000,&H00000000,0,0,0,0,100,
Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text\n\
\n";
static const char *smptett_header = "<?xml version=\"1.0\" encoding=\"UTF-8\" ?>\n"
"<tt xmlns:ttm=\"http://www.w3.org/ns/ttml#metadata\" xmlns:tts=\"http://www.w3.org/ns/ttml#styling\" xmlns=\"http://www.w3.org/ns/ttml\" xml:lang=\"en\">\n"
" <head>\n"
" <styling>\n"
" <style xml:id=\"speakerStyle\" tts:fontFamily=\"proportionalSansSerif\" tts:fontSize=\"150%\" tts:textAlign=\"center\" tts:displayAlign=\"center\" tts:color=\"white\" tts:textOutline=\"black 1px\"/>\n"
" </styling>\n"
" <layout>\n"
" <region xml:id=\"speaker\" tts:origin=\"10% 80%\" tts:extent=\"80% 10%\" style=\"speakerStyle\"/>\n"
" </layout>\n"
" </head>\n"
" <body>\n"
" <div>\n";
/*
TODO -- Set correct values for "ttp:dropMode", "ttp:frameRate" .Using common for now.
Extra reference,
24 frame/sec (film, ATSC, 2k, 4k, 6k)
25 frame/sec (PAL (Europe, Uruguay, Argentina, Australia), SECAM, DVB, ATSC)
29.97 (30 ÷ 1.001) frame/sec (NTSC American System (US, Canada, Mexico, Colombia, etc.), ATSC, PAL-M (Brazil))
30 frame/sec (ATSC)
Find framerate, then use it find dropmode.
*/
static const char *smptett_header = "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\" ?>\n"
" <tt xmlns=\"http://www.w3.org/ns/ttml\" xmlns:ttp=\"http://www.w3.org/ns/ttml#parameter\" ttp:dropMode=\"dropNTSC\" ttp:frameRate=\"30\" ttp:frameRateMultiplier=\"1000 1001\" ttp:timeBase=\"smpte\" xmlns:m608=\"http://www.smpte-ra.org/schemas/2052-1/2010/smpte-tt#cea608\" xmlns:smpte=\"http://www.smpte-ra.org/schemas/2052-1/2010/smpte-tt\" xmlns:ttm=\"http://www.w3.org/ns/ttml#metadata\" xmlns:tts=\"http://www.w3.org/ns/ttml#styling\">\n"
// " <tt xmlns=\"http://www.w3.org/ns/ttml\" xmlns:ttp=\"http://www.w3.org/ns/ttml#parameter\" xmlns:m608=\"http://www.smpte-ra.org/schemas/2052-1/2010/smpte-tt#cea608\" xmlns:smpte=\"http://www.smpte-ra.org/schemas/2052-1/2010/smpte-tt\" xmlns:ttm=\"http://www.w3.org/ns/ttml#metadata\" xmlns:tts=\"http://www.w3.org/ns/ttml#styling\">\n"
" <head>\n"
" <styling>\n"
" <style tts:color=\"white\" tts:fontFamily=\"monospace\" tts:fontWeight=\"normal\" tts:textAlign=\"left\" xml:id=\"basic\"/>\n"
" </styling>\n"
" <layout>\n"
" <region tts:backgroundColor=\"transparent\" xml:id=\"pop1\"/>\n"
" <region tts:backgroundColor=\"transparent\" xml:id=\"paint\"/>\n"
" <region tts:backgroundColor=\"transparent\" xml:id=\"rollup2\"/>\n"
" <region tts:backgroundColor=\"transparent\" xml:id=\"rollup3\"/>\n"
" <region tts:backgroundColor=\"transparent\" xml:id=\"rollup4\"/>\n"
" </layout>\n"
" <metadata/>\n"
" <smpte:information m608:captionService=\"F1C1CC\" m608:channel=\"cc1\"/>\n"
" </head>\n"
" <body>\n"
" <div>\n";
static const char *webvtt_header = "WEBVTT\r\n";
@ -892,8 +913,7 @@ void dinit_encoder(struct encoder_ctx **arg, LLONG current_fts)
freep(&ctx->subline);
freep(&ctx->buffer);
ctx->capacity = 0;
freep(&ctx->prev);
freep(arg);
freep(arg);
}
struct encoder_ctx *init_encoder(struct encoder_cfg *opt)