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Convert .tgs with go libraries (and cgo) (telegram) (#1569)

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This commit adds support for go/cgo tgs conversion when building with the -tags `cgo`
The default binaries are still "pure" go and uses the old way of converting.

* Move lottie_convert.py conversion code to its own file

* Add optional libtgsconverter

* Update vendor

* Apply suggestions from code review

* Update bridge/helper/libtgsconverter.go

Co-authored-by: Wim <wim@42.be>
This commit is contained in:
Benau
2021-08-25 04:32:50 +08:00
committed by GitHub
parent d4195deb3a
commit 53cafa9f3d
310 changed files with 121526 additions and 85 deletions
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18
bridge/telegram/handlers.go
View File

@ -220,20 +220,10 @@ func (b *Btelegram) handleDownloadAvatar(userid int, channel string) {
}
func (b *Btelegram) maybeConvertTgs(name *string, data *[]byte) {
var format string
switch b.GetString("MediaConvertTgs") {
case FormatWebp:
b.Log.Debugf("Tgs to WebP conversion enabled, converting %v", name)
format = FormatWebp
case FormatPng:
// The WebP to PNG converter can't handle animated webp files yet,
// and I'm not going to write a path for x/image/webp.
// The error message would be:
// conversion failed: webp: non-Alpha VP8X is not implemented
// So instead, we tell lottie to directly go to PNG.
b.Log.Debugf("Tgs to PNG conversion enabled, converting %v", name)
format = FormatPng
default:
format := b.GetString("MediaConvertTgs")
if helper.SupportsFormat(format) {
b.Log.Debugf("Format supported by %s, converting %v", helper.LottieBackend(), name)
} else {
// Otherwise, no conversion was requested. Trying to run the usual webp
// converter would fail, because '.tgs.webp' is actually a gzipped JSON
// file, and has nothing to do with WebP.

8
bridge/telegram/telegram.go
View File

@ -17,8 +17,6 @@ const (
HTMLFormat = "HTML"
HTMLNick = "htmlnick"
MarkdownV2 = "MarkdownV2"
FormatPng = "png"
FormatWebp = "webp"
)
type Btelegram struct {
@ -32,10 +30,10 @@ func New(cfg *bridge.Config) bridge.Bridger {
if tgsConvertFormat != "" {
err := helper.CanConvertTgsToX()
if err != nil {
log.Fatalf("Telegram bridge configured to convert .tgs files to '%s', but lottie does not appear to work:\n%#v", tgsConvertFormat, err)
log.Fatalf("Telegram bridge configured to convert .tgs files to '%s', but %s does not appear to work:\n%#v", tgsConvertFormat, helper.LottieBackend(), err)
}
if tgsConvertFormat != FormatPng && tgsConvertFormat != FormatWebp {
log.Fatalf("Telegram bridge configured to convert .tgs files to '%s', but only '%s' and '%s' are supported.", FormatPng, FormatWebp, tgsConvertFormat)
if !helper.SupportsFormat(tgsConvertFormat) {
log.Fatalf("Telegram bridge configured to convert .tgs files to '%s', but %s doesn't support it.", tgsConvertFormat, helper.LottieBackend())
}
}
return &Btelegram{Config: cfg, avatarMap: make(map[string]string)}