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audio: Improve/fix handling of NONE layouts

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This commit is contained in:
Sebastian Dröge 2012-01-04 14:48:33 +01:00
parent 8dcea5d498
commit 9e072ea844
1 changed files with 22 additions and 6 deletions
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28
gst-libs/gst/audio/audio.c
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@ -424,7 +424,8 @@ check_valid_channel_positions (const GstAudioChannelPosition * position,
j++;
if (position[i] == GST_AUDIO_CHANNEL_POSITION_INVALID ||
position[i] == GST_AUDIO_CHANNEL_POSITION_MONO)
position[i] == GST_AUDIO_CHANNEL_POSITION_MONO ||
position[i] == GST_AUDIO_CHANNEL_POSITION_NONE)
return FALSE;
/* Is this in valid channel order? */
@ -459,10 +460,10 @@ gst_audio_info_set_format (GstAudioInfo * info, GstAudioFormat format,
gint rate, gint channels, const GstAudioChannelPosition * position)
{
const GstAudioFormatInfo *finfo;
gint i;
g_return_if_fail (info != NULL);
g_return_if_fail (format != GST_AUDIO_FORMAT_UNKNOWN);
g_return_if_fail (channels <= 2 || position != NULL);
finfo = &formats[format];
@ -477,17 +478,27 @@ gst_audio_info_set_format (GstAudioInfo * info, GstAudioFormat format,
if (!position && channels == 1) {
info->position[0] = GST_AUDIO_CHANNEL_POSITION_MONO;
return;
} else if (!position && channels == 2) {
info->position[0] = GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT;
info->position[1] = GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT;
return;
} else {
if (!check_valid_channel_positions (position, channels, TRUE, NULL)) {
g_warning ("Invalid channel positions");
} else {
memcpy (&info->position, position,
info->channels * sizeof (info->position[0]));
if (info->position[0] == GST_AUDIO_CHANNEL_POSITION_NONE)
info->flags |= GST_AUDIO_FLAG_UNPOSITIONED;
return;
}
}
/* Otherwise a NONE layout */
info->flags |= GST_AUDIO_FLAG_UNPOSITIONED;
for (i = 0; i < MIN (64, channels); i++)
info->position[i] = GST_AUDIO_CHANNEL_POSITION_NONE;
}
/**
@ -553,7 +564,8 @@ gst_audio_info_from_caps (GstAudioInfo * info, const GstCaps * caps)
goto no_channel_mask;
}
} else if (channel_mask == 0) {
for (i = 0; i < G_N_ELEMENTS (position); i++)
info->flags |= GST_AUDIO_FLAG_UNPOSITIONED;
for (i = 0; i < MIN (64, channels); i++)
position[i] = GST_AUDIO_CHANNEL_POSITION_NONE;
} else {
gint j;
@ -665,9 +677,13 @@ gst_audio_info_to_caps (const GstAudioInfo * info)
|| info->position[0] != GST_AUDIO_CHANNEL_POSITION_MONO) {
guint64 channel_mask = 0;
if (!check_valid_channel_positions (info->position, info->channels,
TRUE, &channel_mask))
goto invalid_channel_positions;
if ((info->flags & GST_AUDIO_FLAG_UNPOSITIONED)) {
channel_mask = 0;
} else {
if (!check_valid_channel_positions (info->position, info->channels,
TRUE, &channel_mask))
goto invalid_channel_positions;
}
if (info->channels == 1
&& info->position[0] == GST_AUDIO_CHANNEL_POSITION_MONO) {