gst_element_seek fails with alawdec

[Stefan Sauer]

On 09/23/2011 08:30 AM, Jesu Anuroop Suresh wrote:
> Hi 
>
> Below is the pipeline
>
> gst-launch -v filesrc location=give_me_jesus.alaw  !  audio/x-alaw,
> rate=44100, channels=2 ! alawdec ! alsasink
>
> It fails for gst_element_seek
only for backward or for both? File a bug for it and ideally have a look
at alwadec and see if you can make a patch.

Stefan

> Below is the code for the seek 
>
> ff - 1 for forward, 0 for backward
> time_seconds = number of seconds to seek
>
> This same code is working with the mp3 pipeline
>
> static void seekMediaTime (int ff, int time_seconds)
> {
>     gint64 start_pos, stop_pos, rate;
>     gint64 start_flag, stop_flag;
>     gint64 pos, len, tmp = 0;
>     gint64 timeFf = FF_SPEED_BASE;
>     GstFormat fmt = GST_FORMAT_TIME;
>
>     if (!gst_element_query_duration (recordEng.recPipeline, &fmt, &len) ||
>         !gst_element_query_position (recordEng.recPipeline, &fmt, &pos))
>     {
>           printf ("%s: %d Query Failed\r\n",__func__,__LINE__);
>           return;
>     }
>
>     if (ff == 1)
>     {
>           timeFf = ((gint64)FF_SPEED_BASE * time_seconds);
>
>           if ((len <= (pos + timeFf)) || (len == pos))
>                 timeFf = 0;
>           else
>                 tmp = pos + timeFf;
>           printf ("FORWARDWORD BY:%llu\r\n",timeFf);
>     }
>     else
>     {
>           timeFf = ((gint64)FF_SPEED_BASE * time_seconds);
>
>           if ((pos <= timeFf) || (len == pos))
>                 timeFf = 0;
>           else
>                 tmp = (pos - timeFf);
>           printf ("BACKWORD BY:%llu\r\n",timeFf);
>     }
>     g_print ("Current Pos Time: %llu %llu\r\n",pos,len);
>     g_print ("Set Pos Time: %llu\r\n",tmp);
>     timeFf = tmp;
>     rate = 1.0;
>     start_pos = timeFf;
>     start_flag = GST_SEEK_TYPE_SET;
>     stop_flag = GST_SEEK_TYPE_NONE;
>     stop_pos = GST_CLOCK_TIME_NONE;
>
>     if (!gst_element_seek (recordEng.recPipeline, rate,
>            GST_FORMAT_TIME, GST_SEEK_FLAG_FLUSH,
>            start_flag, start_pos,
>            stop_flag, stop_pos))
>     {
>             g_print ("Seek failed!\r\n");
>     }
>     else
>     {
>             g_print ("Time: %" GST_TIME_FORMAT " / %"
>                GST_TIME_FORMAT "\r\n",
>                GST_TIME_ARGS (pos), GST_TIME_ARGS (len));
>
>             /* We will wait til it is running or failed */
>             if (gst_element_get_state (recordEng.recPipeline,
>                  NULL, NULL, -1) == GST_STATE_CHANGE_FAILURE)
>             {
>                   g_print ("Failed to go into PLAYING state\r\n");
>             }
>     }
> }
>
>
> Regards
> Jesu Anuroop Suresh
>
>
>
>
>
> --
> View this message in context: http://gstreamer-devel.966125.n4.nabble.com/gst-element-seek-fails-with-alawdec-tp3835910p3835910.html
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