Details
-
Bug
-
Resolution: Incomplete
-
P2: Important
-
None
-
6.7.2, 6.8.0 Beta1
-
Linux/Wayland,
macOS,
Windows
-
Multimedia wk 35-38, Multimedia wk 7-8, Multimedia, weeks 9-10, Multimedia, weeks 11-12
Description
I haven't figured out what exactly causes it to not work. Some streams work perfectly fine even with same codec. One that does not outputs this with attached example:
qt.multimedia.ffmpeg.mediadataholder: AVStream duration -9223372036854775808 is invalid. Taking it from the metadata qt.multimedia.ffmpeg.metadata: checking: title live stream 0, streamed by the LIVE555 Media Server qt.multimedia.ffmpeg.metadata: adding QMediaMetaData::Title qt.multimedia.ffmpeg.metadata: checking: comment h264/stream.live0 qt.multimedia.ffmpeg.metadata: adding QMediaMetaData::Comment qt.multimedia.ffmpeg.playbackengine: Create PlaybackEngine qt.multimedia.ffmpeg.playbackengine: Create codec for stream: 0 trackType: VideoStream qt.multimedia.ffmpeg.hwaccel: Check device types qt.core.library: "libnvcuvid.so" loaded library qt.core.library: "libnvcuvid.so" unloaded library qt.multimedia.ffmpeg.hwaccel: Checking HW context: cuda qt.multimedia.ffmpeg.hwaccel: Using above hw context. qt.multimedia.ffmpeg.hwaccel: Checking HW context: vaapi qt.multimedia.ffmpeg.hwaccel: Using above hw context. qt.multimedia.ffmpeg.hwaccel: Device types checked. Spent time: 1267849us qt.multimedia.ffmpeg.utils: Skip experimental codec avui qt.multimedia.ffmpeg.utils: Skip experimental codec s302m qt.multimedia.ffmpeg.utils: Skip experimental codec dca qt.multimedia.ffmpeg.utils: Skip experimental codec mlp qt.multimedia.ffmpeg.utils: Skip experimental codec opus qt.multimedia.ffmpeg.utils: Skip experimental codec sonic qt.multimedia.ffmpeg.utils: Skip experimental codec sonicls qt.multimedia.ffmpeg.utils: Skip experimental codec truehd qt.multimedia.ffmpeg.utils: Skip experimental codec vorbis qt.multimedia.ffmpeg.utils: Skip experimental codec sonic qt.multimedia.ffmpeg.hwaccel: Found potential codec h264_cuvid for hw accel 2 ; Checking the hw device... qt.multimedia.ffmpeg.hwaccel: Checking HW context: cuda qt.multimedia.ffmpeg.hwaccel: Using above hw context. qt.multimedia.ffmpeg.hwaccel: HW device is OK qt.multimedia.playbackengine.codec: found decoder h264_cuvid for id 27 qt.multimedia.ffmpeg.hwaccel: Selected format 117 for hw 2 [h264_cuvid @ 0x62c904487a80] Invalid pkt_timebase, passing timestamps as-is. qt.multimedia.ffmpeg.streamdecoder: Create stream decoder, trackType VideoStream absSeekPos: 0 qt.multimedia.ffmpeg.demuxer: Create demuxer. pos: 0 loop offset: 0 loop index: 0 loops: 1 qt.multimedia.ffmpeg.demuxer: Activate demuxing stream 0 , trackType: VideoStream qt.multimedia.ffmpeg.hwaccel: Selected format 117 for hw 2 qt.multimedia.ffmpeg.demuxer: finish demuxing qt.multimedia.ffmpeg.playbackengine: Playback engine end of stream
It takes few seconds before it sends "Playback engine end of stream". Same stream plays fine with ffplay (although Qt statically links in some other ffmpeg build)
Attachments
Issue Links
- relates to
-
QTBUG-133906 Prevent seeking on first play after loading media with FFmpeg backend
-
- Closed
-
-
-
- In Progress
-