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Bug 1900191 - Use nestegg advertised default duration if it exists.

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This commit is contained in:
Moonchild 2024-09-30 22:34:37 +02:00 • committed by roytam1
commit ea2268b5e8
3 changed files with 19 additions and 5 deletions
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14
dom/media/webm/NesteggPacketHolder.h
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@ -22,10 +22,11 @@ public:
: mPacket(nullptr)
, mOffset(-1)
, mTimestamp(-1)
, mDefaultDuration(-1)
, mDuration(-1)
, mIsKeyframe(false) {}
bool Init(nestegg_packet* aPacket, int64_t aOffset, unsigned aTrack, bool aIsKeyframe)
bool Init(nestegg_packet* aPacket, nestegg* aContext, int64_t aOffset, unsigned aTrack, bool aIsKeyframe)
{
uint64_t timestamp_ns;
if (nestegg_packet_tstamp(aPacket, &timestamp_ns) == -1) {
@ -44,6 +45,9 @@ public:
if (!nestegg_packet_duration(aPacket, &duration_ns)) {
mDuration = duration_ns / 1000;
}
if (!nestegg_track_default_duration(aContext, mTrack, &duration_ns)) {
mDefaultDuration = duration_ns / 1000;
}
return true;
}
@ -51,6 +55,7 @@ public:
int64_t Offset() { MOZ_ASSERT(IsInitialized()); return mOffset; }
int64_t Timestamp() { MOZ_ASSERT(IsInitialized()); return mTimestamp; }
int64_t Duration() { MOZ_ASSERT(IsInitialized()); return mDuration; }
int64_t DefaultDuration() const { MOZ_ASSERT(IsInitialized()); return mDefaultDuration; }
unsigned Track() { MOZ_ASSERT(IsInitialized()); return mTrack; }
bool IsKeyframe() { MOZ_ASSERT(IsInitialized()); return mIsKeyframe; }
@ -60,7 +65,7 @@ private:
nestegg_free_packet(mPacket);
}
bool IsInitialized() { return mOffset >= 0; }
bool IsInitialized() const { return mOffset >= 0; }
nestegg_packet* mPacket;
@ -72,8 +77,13 @@ private:
int64_t mTimestamp;
// Packet duration in microseconds; -1 if unknown or retrieval failed.
// https://www.webmproject.org/docs/container/#BlockDuration
int64_t mDuration;
// Default duration in microseconds; -1 if unknown or retrieval failed.
// https://www.webmproject.org/docs/container/#Duration
int64_t mDefaultDuration;
// Track ID.
unsigned mTrack;