[feature] For video attachments, store + return fps, bitrate, duration (#1282)

* start messing about with different mp4 metadata extraction

* heyyooo it works

* add test cow

* move useful multierror to gtserror package

* error out if video doesn't seem to be a real mp4

* test parsing mkv in disguise as mp4

* tidy up error handling

* remove extraneous line

* update framerate formatting

* use float32 for aspect

* fixy mctesterson

1 files changed, 11 insertions, 0 deletions

diff --git a/internal/typeutils/internaltofrontend_test.go b/internal/typeutils/internaltofrontend_test.go
index ea4f9abf2..9c7e1271f 100644
--- a/internal/typeutils/internaltofrontend_test.go
+++ b/internal/typeutils/internaltofrontend_test.go
@@ -110,6 +110,17 @@ func (suite *InternalToFrontendTestSuite) TestStatusToFrontendUnknownLanguage()
 	suite.Equal(`{"id":"01F8MH75CBF9JFX4ZAD54N0W0R","created_at":"2021-10-20T11:36:45.000Z","in_reply_to_id":null,"in_reply_to_account_id":null,"sensitive":false,"spoiler_text":"","visibility":"public","language":null,"uri":"http://localhost:8080/users/admin/statuses/01F8MH75CBF9JFX4ZAD54N0W0R","url":"http://localhost:8080/@admin/statuses/01F8MH75CBF9JFX4ZAD54N0W0R","replies_count":0,"reblogs_count":0,"favourites_count":1,"favourited":true,"reblogged":false,"muted":false,"bookmarked":true,"pinned":false,"content":"hello world! #welcome ! first post on the instance :rainbow: !","reblog":null,"application":{"name":"superseriousbusiness","website":"https://superserious.business"},"account":{"id":"01F8MH17FWEB39HZJ76B6VXSKF","username":"admin","acct":"admin","display_name":"","locked":false,"bot":false,"created_at":"2022-05-17T13:10:59.000Z","note":"","url":"http://localhost:8080/@admin","avatar":"","avatar_static":"","header":"http://localhost:8080/assets/default_header.png","header_static":"http://localhost:8080/assets/default_header.png","followers_count":1,"following_count":1,"statuses_count":4,"last_status_at":"2021-10-20T10:41:37.000Z","emojis":[],"fields":[],"enable_rss":true,"role":"admin"},"media_attachments":[{"id":"01F8MH6NEM8D7527KZAECTCR76","type":"image","url":"http://localhost:8080/fileserver/01F8MH17FWEB39HZJ76B6VXSKF/attachment/original/01F8MH6NEM8D7527KZAECTCR76.jpeg","text_url":"http://localhost:8080/fileserver/01F8MH17FWEB39HZJ76B6VXSKF/attachment/original/01F8MH6NEM8D7527KZAECTCR76.jpeg","preview_url":"http://localhost:8080/fileserver/01F8MH17FWEB39HZJ76B6VXSKF/attachment/small/01F8MH6NEM8D7527KZAECTCR76.jpeg","remote_url":null,"preview_remote_url":null,"meta":{"original":{"width":1200,"height":630,"size":"1200x630","aspect":1.9047619},"small":{"width":256,"height":134,"size":"256x134","aspect":1.9104477},"focus":{"x":0,"y":0}},"description":"Black and white image of some 50's style text saying: Welcome On Board","blurhash":"LNJRdVM{00Rj%Mayt7j[4nWBofRj"}],"mentions":[],"tags":[{"name":"welcome","url":"http://localhost:8080/tags/welcome"}],"emojis":[{"shortcode":"rainbow","url":"http://localhost:8080/fileserver/01AY6P665V14JJR0AFVRT7311Y/emoji/original/01F8MH9H8E4VG3KDYJR9EGPXCQ.png","static_url":"http://localhost:8080/fileserver/01AY6P665V14JJR0AFVRT7311Y/emoji/static/01F8MH9H8E4VG3KDYJR9EGPXCQ.png","visible_in_picker":true,"category":"reactions"}],"card":null,"poll":null,"text":"hello world! #welcome ! first post on the instance :rainbow: !"}`, string(b))
 }
 
+func (suite *InternalToFrontendTestSuite) TestVideoAttachmentToFrontend() {
+	testAttachment := suite.testAttachments["local_account_1_status_4_attachment_2"]
+	apiAttachment, err := suite.typeconverter.AttachmentToAPIAttachment(context.Background(), testAttachment)
+	suite.NoError(err)
+
+	b, err := json.Marshal(apiAttachment)
+	suite.NoError(err)
+
+	suite.Equal(`{"id":"01CDR64G398ADCHXK08WWTHEZ5","type":"video","url":"http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/attachment/original/01CDR64G398ADCHXK08WWTHEZ5.mp4","text_url":"http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/attachment/original/01CDR64G398ADCHXK08WWTHEZ5.mp4","preview_url":"http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/attachment/small/01CDR64G398ADCHXK08WWTHEZ5.jpeg","remote_url":null,"preview_remote_url":null,"meta":{"original":{"width":720,"height":404,"frame_rate":"30/1","duration":15.033334,"bitrate":1206522,"size":"720x404","aspect":1.7821782},"small":{"width":720,"height":404,"size":"720x404","aspect":1.7821782},"focus":{"x":0,"y":0}},"description":"A cow adorably licking another cow!"}`, string(b))
+}
+
 func (suite *InternalToFrontendTestSuite) TestInstanceToFrontend() {
 	testInstance := &gtsmodel.Instance{
 		CreatedAt:        testrig.TimeMustParse("2021-10-20T11:36:45Z"),