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VideoPlayer/LibVideo: Implement the UI functionality for seeking

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With these changes, the seek bar can be used, but only to seek to the
start of the file. Seeking to anywhere else in the file will cause an
error in the demuxer.

The timestamp label that was previously invisible now has its text set
according to either the playback or seek slider's position.
This commit is contained in:
Zaggy1024 2022-11-11 22:26:19 -06:00 • committed by Andreas Kling
parent e216d1a65f
commit f31621b3f2
7 changed files with 84 additions and 13 deletions
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1
Userland/Libraries/LibVideo/PlaybackManager.h
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@ -101,6 +101,7 @@ public:
void resume_playback();
void pause_playback();
void restart_playback();
void seek_to_timestamp(Time);
bool is_playing() const { return m_status == PlaybackStatus::Playing; }
bool is_buffering() const { return m_status == PlaybackStatus::Buffering; }
bool is_stopped() const { return m_status == PlaybackStatus::Stopped; }