[gstreamer-bugs] [Bug 498715] New: GStreamer fails to decode MPEG1 Video RTP streams when gst-ffmpeg is installed
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Wed Nov 21 03:06:22 PST 2007
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GStreamer | gst-ffmpeg | Ver: 0.10.2
Summary: GStreamer fails to decode MPEG1 Video RTP streams when
gst-ffmpeg is installed
AssignedTo: gstreamer-bugs at lists.sourceforge.net
ReportedBy: dario.gallucci at gmail.com
QAContact: gstreamer-bugs at lists.sourceforge.net
GNOME version: Unspecified
GNOME milestone: Unspecified
Please describe the problem:
If gst-ffmpeg is installed any gstreamer based player (eg. kmplayer with gst
engine or totem) fails to decode mpeg1 video rtp streams from an rtsp session.
Totem fails with this error: Internal GStreamer error: negotiation problem.
On the console the following message can be read:
gstffmpegdec.c(1981): gst_ffmpegdec_chain (): /play/decodebin1/ffdec_mpeg40:
ffdec_mpeg4: input format was not set before data start
If gst-ffmpeg is not installed, it works correctly.
Steps to reproduce:
1. Install gst-ffmpeg
2. Try to play rtsp://live.polito.it/test/tc_mpeg1.mpg
4. Uninstall gst-ffmpeg
5. Try to play rtsp://live.polito.it/test/tc_mpeg1.mpg
Does this happen every time?
I suppose it depends on the fact "video/mpeg" is mapped to MPEG1, MPEG2 and
MPEG4 in ./ext/ffmpeg/gstffmpegcodecmap.c, but it should be mapped to MPEG1 and
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