Using GStreamer to read a video file and a subtitle file

[billault]

Dear all,

I need to use Gstreamer to read a video in the .avi format and subtitles in
.srt format.

First, i used to read the video only : 

gst-launch-0.10 \
        filesrc location=$@ ! \
        avidemux name=demux \
        demux.video_00 ! \
        queue ! \
        mfw_vpudecoder ! \
        v4l2sink  \
        demux.audio_00 ! \
        queue ! \
        mad ! \
        alsasink

witch works.
Then , i'm trying to add subtitles using subtitleoverlay :

gst-launch-0.10 \
        filesrc location=$1 ! \
        avidemux name=demux \
        demux.video_00 ! \
        queue ! \
        avisubtitle ! \
        subparse ! \
        subtitleoverlay name=overlay ! \
        ffmpegcolorspace ! \
        fakesink \
        demux.audio_00 ! \
        queue ! \
        mad ! \
        alsasink \
        filesrc location=$2 ! \
        queue ! \
        overlay.

but the programe freezes with this error : Subtitle sink is blocked but we
have no subtitle caps
I don't know if my subtitle file is wrong or i'm not using subtitleoverlay
properly.

best regards,

billault.

ps : sorry for my english, i'm french.


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