[Bug 706422] New: jpegenc is sending wrong buffer on specific input/resolution

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=706422
  GStreamer | gst-plugins-good | 1.0.9

           Summary: jpegenc is sending wrong buffer on specific
                    input/resolution
    Classification: Platform
           Product: GStreamer
           Version: 1.0.9
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-good
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: tobias.schneider at voiceinterconnect.de
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


When using the following pipelines for sending/receiving an jpeg encoded
videostream using videotestsrc and udpsink, the receiver cancels with the
following error message:

 When starting above pipelines or this sample application you will encounter
 the following error on receiving end:

   ** (gst-launch-1.0:32310): CRITICAL **: gst_adapter_push: assertion
`GST_IS_BUFFER (buf)' failed
   ** (gst-launch-1.0:32310): CRITICAL **: gst_jpeg_dec_fill_input_buffer:
assertion `dec->current_frame_map.data != NULL' failed
   ** (gst-launch-1.0:32310): CRITICAL **: gst_jpeg_dec_fill_input_buffer:
assertion `dec->current_frame_map.data != NULL' failed
   ERROR: From element /GstPipeline:pipeline0/GstJpegDec:jpegdec0: Failed to
decode JPEG image
   Additional diagnostic information:
   gstjpegdec.c(1295): gst_jpeg_dec_handle_frame ():
/GstPipeline:pipeline0/GstJpegDec:jpegdec0:
   number of components not supported: 3 (max 3)

Use these pipelines for reproduction:

RECEIVER: 
 gst-launch-1.0 -v udpsrc port=9001 ! "application/x-rtp, media=(string)video,
clock-rate=(int)90000, encoding-name=(string)JPEG, payload=(int)96" !
rtpjpegdepay ! jpegdec ! autovideosink

SENDER: 
 gst-launch-1.0 -v videotestsrc pattern=1 ! "video/x-raw, width=(int)640,
height=(int)480, framerate=(fraction)30/1, format=(string)I420" ! jpegenc !
rtpjpegpay ! udpsink host=127.0.0.1 port=9001

The problem was encountered using GStreamer 1.0.8 and verified also with
GStreamer 1.0.9. It will only occur with pattern=1 of videotestsrc and with
640x480 resolution. When using pattern=0 and resolution 320x240 I could not see
the error. When using avenc_mjpeg instead of jpegenc the problem also seems to
be fixed. Therefore I guess its a problem of jpegenc.

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