implemented core subtitle support

app/codec/exportcodec.cpp

@@ -60,6 +60,8 @@ QString ExportCodec::GetCodecName(ExportCodec::Codec c)
     return tr("Vorbis");
   case kCodecVP9:
     return tr("VP9");
+  case kCodecSRT:
+    return tr("SubRip SRT");
   case kCodecCount:
     break;
   }
@@ -82,6 +84,7 @@ bool ExportCodec::IsCodecAStillImage(ExportCodec::Codec c)
   case kCodecOpus:
   case kCodecFLAC:
   case kCodecVP9:
+  case kCodecSRT:
     return false;
   case kCodecOpenEXR:
   case kCodecPNG:
@@ -94,4 +97,31 @@ bool ExportCodec::IsCodecAStillImage(ExportCodec::Codec c)
   return false;
 }
 
+SubtitleParams::Encoding ExportCodec::GetDefaultSubtitleEncoding(Codec c)
+{
+  switch (c) {
+  case kCodecSRT:
+    return SubtitleParams::kWindows1252;
+  case kCodecDNxHD:
+  case kCodecH264:
+  case kCodecH265:
+  case kCodecProRes:
+  case kCodecMP2:
+  case kCodecMP3:
+  case kCodecAAC:
+  case kCodecPCM:
+  case kCodecVorbis:
+  case kCodecOpus:
+  case kCodecFLAC:
+  case kCodecVP9:
+  case kCodecOpenEXR:
+  case kCodecPNG:
+  case kCodecTIFF:
+  case kCodecCount:
+    break;
+  }
+
+  return SubtitleParams::kEncodingInvalid;
+}
+
 }