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dvdlpcmdec: factor out common code to set output format into new function

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When caps event is recieved and header is changed, reordering channel
and setting the default output format for audio are processed. These 2 of
code are same. Thus, It is better to make a new function for these common
code in terms of removing duplicated code, maintenance and expansion.

https://bugzilla.gnome.org/show_bug.cgi?id=753920
This commit is contained in:
HoonHee Lee 2015-08-25 10:08:46 +09:00 committed by Tim-Philipp Müller
parent 738e48ef49
commit d7f78391b4
1 changed files with 27 additions and 30 deletions
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57
gst/dvdlpcmdec/gstdvdlpcmdec.c
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@ -237,6 +237,31 @@ gst_dvdlpcmdec_set_outcaps (GstDvdLpcmDec * dvdlpcmdec)
return res;
}
static void
gst_dvdlpcmdec_update_audio_formats (GstDvdLpcmDec * dec, gint channels,
gint rate, GstAudioFormat format)
{
GST_DEBUG_OBJECT (dec, "got channles = %d, rate = %d, format = %d", channels,
rate, format);
/* Reorder the channel positions and set the default into for the audio */
if (channels < 9
&& channel_positions[channels - 1][0] !=
GST_AUDIO_CHANNEL_POSITION_INVALID) {
const GstAudioChannelPosition *position;
GstAudioChannelPosition sorted_position[8];
position = channel_positions[channels - 1];
dec->lpcm_layout = position;
memcpy (sorted_position, position, sizeof (sorted_position));
gst_audio_channel_positions_to_valid_order (sorted_position, channels);
gst_audio_info_set_format (&dec->info, format, rate, channels,
sorted_position);
} else {
gst_audio_info_set_format (&dec->info, format, rate, channels, NULL);
}
}
static gboolean
gst_dvdlpcmdec_setcaps (GstPad * pad, GstCaps * caps)
{
@ -245,8 +270,6 @@ gst_dvdlpcmdec_setcaps (GstPad * pad, GstCaps * caps)
GstDvdLpcmDec *dvdlpcmdec;
GstAudioFormat format;
gint rate, channels, width;
const GstAudioChannelPosition *position;
GstAudioChannelPosition sorted_position[8];
g_return_val_if_fail (caps != NULL, FALSE);
g_return_val_if_fail (pad != NULL, FALSE);
@ -289,19 +312,7 @@ gst_dvdlpcmdec_setcaps (GstPad * pad, GstCaps * caps)
break;
}
if (channels < 9
&& channel_positions[channels - 1][0] !=
GST_AUDIO_CHANNEL_POSITION_INVALID) {
position = channel_positions[channels - 1];
dvdlpcmdec->lpcm_layout = position;
memcpy (sorted_position, channel_positions[channels - 1],
sizeof (sorted_position));
gst_audio_channel_positions_to_valid_order (sorted_position, channels);
gst_audio_info_set_format (&dvdlpcmdec->info, format, rate, channels,
sorted_position);
} else {
gst_audio_info_set_format (&dvdlpcmdec->info, format, rate, channels, NULL);
}
gst_dvdlpcmdec_update_audio_formats (dvdlpcmdec, channels, rate, format);
dvdlpcmdec->width = width;
@ -413,21 +424,7 @@ parse_header (GstDvdLpcmDec * dec, guint32 header)
/* And, of course, the number of channels (up to 8) */
channels = ((header >> 8) & 0x7) + 1;
if (channels < 9
&& channel_positions[channels - 1][0] !=
GST_AUDIO_CHANNEL_POSITION_INVALID) {
const GstAudioChannelPosition *position;
GstAudioChannelPosition sorted_position[8];
position = channel_positions[channels - 1];
dec->lpcm_layout = position;
memcpy (sorted_position, position, sizeof (sorted_position));
gst_audio_channel_positions_to_valid_order (sorted_position, channels);
gst_audio_info_set_format (&dec->info, format, rate, channels,
sorted_position);
} else {
gst_audio_info_set_format (&dec->info, format, rate, channels, NULL);
}
gst_dvdlpcmdec_update_audio_formats (dec, channels, rate, format);
}
static GstFlowReturn