Problems with Audio capture in IOS

[Sebastian Dröge]

On Mo, 2014-04-07 at 12:41 +0600, aft wrote:
> On Sun, Apr 6, 2014 at 6:43 PM, Sebastian Dröge
> <sebastian at centricular.com> wrote:
> > On So, 2014-04-06 at 17:32 +0600, aft wrote:
> >> Hi,
> >>
> >> I'm trying to capture voice from an IOS device and send it over
> >> network using rtpbin. Now When i try to do the same between two
> >> desktops (linux/Windows) it works fine. But in case of iOS device the
> >> voice is distorted to the point that nothing can be recognized...
> >>
> >> The code i'm using to capture the voice is :
> >>
> >> pipeline = gst_pipeline_new (NULL);
> >>    g_assert(pipeline);
> >>
> >>    audiosrc = gst_element_factory_make ("osxaudiosrc", NULL); //ios
> >> audio source and mac audio src same?
> >>    g_assert (audiosrc);
> >>    audioconv = gst_element_factory_make ("audioconvert", NULL);
> >>    g_assert (audioconv);
> >>    audiores = gst_element_factory_make ("audioresample", NULL);
> >>    g_assert (audiores);
> >>    /* the encoding and payloading */
> >>    audioenc = gst_element_factory_make ("alawenc", NULL);
> >>    g_assert (audioenc);
> >>    audiopay = gst_element_factory_make ("rtppcmapay", NULL);
> >>    g_assert (audiopay);
> >>    /* add capture and payloading to the pipeline and link */
> >>    gst_bin_add_many (GST_BIN (pipeline), audiosrc, audioconv, audiores,
> >>                      audioenc, audiopay, NULL);
> >>
> >>    if (!gst_element_link_many (audiosrc, audioconv, audiores, audioenc,
> >>                                audiopay, NULL)) {
> >>        g_error ("Failed to link audiosrc, audioconv, audioresample, "
> >>                 "audio encoder and audio payloader");
> >>    }
> >>
> >> I'm feeling i'm doing something wrong when choosing the appropriate
> >> element used as "src".
> >
> > Does it work better if you force a different sample rate after the
> > source with a capsfilter (e.g. try 16000, 32000, 44100 and 48000)?
> >
> 
> Well no luck with different sample rates. The caps i'm using :
> [...]

Can you file a bug about this at http://bugzilla.gnome.org, including
the hardware and software versions you're using, and a testcase to
easily reproduce this problem?

-- 
Sebastian Dröge, Centricular Ltd - http://www.centricular.com
Expertise, Straight from the Source
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