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audioconvert: remove unnecessary deep nesting in fixate function

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Makes it easier to read and removes two levels of indentation.
This commit is contained in:
Tim-Philipp Müller 2013-08-23 18:52:44 +01:00
parent f678411c6e
commit f448977dbd
1 changed files with 66 additions and 66 deletions
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132
gst/audioconvert/gstaudioconvert.c
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@ -443,6 +443,7 @@ gst_audio_convert_fixate_format (GstBaseTransform * base, GstStructure * ins,
const GValue *format;
const GstAudioFormatInfo *in_info, *out_info = NULL;
GstAudioFormatFlags in_flags, out_flags = 0;
gint i, len;
in_format = gst_structure_get_string (ins, "format");
if (!in_format)
@ -453,6 +454,10 @@ gst_audio_convert_fixate_format (GstBaseTransform * base, GstStructure * ins,
if (format == NULL)
return;
/* nothing to fixate? */
if (!GST_VALUE_HOLDS_LIST (format))
return;
in_info =
gst_audio_format_get_info (gst_audio_format_from_string (in_format));
if (!in_info)
@ -462,77 +467,72 @@ gst_audio_convert_fixate_format (GstBaseTransform * base, GstStructure * ins,
in_flags &= ~(GST_AUDIO_FORMAT_FLAG_UNPACK);
in_flags &= ~(GST_AUDIO_FORMAT_FLAG_SIGNED);
if (GST_VALUE_HOLDS_LIST (format)) {
gint i, len;
len = gst_value_list_get_size (format);
for (i = 0; i < len; i++) {
const GstAudioFormatInfo *t_info;
GstAudioFormatFlags t_flags;
const GValue *val;
const gchar *fname;
len = gst_value_list_get_size (format);
for (i = 0; i < len; i++) {
const GValue *val;
const gchar *fname;
val = gst_value_list_get_value (format, i);
if (!G_VALUE_HOLDS_STRING (val))
continue;
val = gst_value_list_get_value (format, i);
if (G_VALUE_HOLDS_STRING (val)) {
const GstAudioFormatInfo *t_info;
GstAudioFormatFlags t_flags;
fname = g_value_get_string (val);
t_info = gst_audio_format_get_info (gst_audio_format_from_string (fname));
if (!t_info)
continue;
fname = g_value_get_string (val);
t_info =
gst_audio_format_get_info (gst_audio_format_from_string (fname));
if (!t_info)
continue;
/* accept input format immediately */
if (strcmp (fname, in_format) == 0) {
out_info = t_info;
break;
}
t_flags = GST_AUDIO_FORMAT_INFO_FLAGS (t_info);
t_flags &= ~(GST_AUDIO_FORMAT_FLAG_UNPACK);
t_flags &= ~(GST_AUDIO_FORMAT_FLAG_SIGNED);
if (GST_AUDIO_FORMAT_INFO_DEPTH (t_info) ==
GST_AUDIO_FORMAT_INFO_DEPTH (in_info) && (!out_info
|| GST_AUDIO_FORMAT_INFO_DEPTH (out_info) !=
GST_AUDIO_FORMAT_INFO_DEPTH (in_info)
|| (t_flags == in_flags && out_flags != in_flags))) {
/* Prefer to use the first format that has the same depth with the same
* flags, and if none with the same flags exist use the first other one
* that has the same depth */
out_info = t_info;
out_flags = t_flags;
} else if (GST_AUDIO_FORMAT_INFO_DEPTH (t_info) >=
GST_AUDIO_FORMAT_INFO_DEPTH (in_info) && (!out_info
|| GST_AUDIO_FORMAT_INFO_DEPTH (in_info) >
GST_AUDIO_FORMAT_INFO_DEPTH (out_info)
|| (GST_AUDIO_FORMAT_INFO_DEPTH (out_info) >=
GST_AUDIO_FORMAT_INFO_DEPTH (in_info) && t_flags == in_flags
&& out_flags != in_flags))) {
/* Otherwise use the first format that has a higher depth with the same flags,
* if none with the same flags exist use the first other one that has a higher
* depth */
out_info = t_info;
out_flags = t_flags;
} else if (!out_info
|| (GST_AUDIO_FORMAT_INFO_DEPTH (t_info) >
GST_AUDIO_FORMAT_INFO_DEPTH (out_info)
&& GST_AUDIO_FORMAT_INFO_DEPTH (out_info) <
GST_AUDIO_FORMAT_INFO_DEPTH (in_info)) || (t_flags == in_flags
&& out_flags != in_flags
&& GST_AUDIO_FORMAT_INFO_DEPTH (out_info) ==
GST_AUDIO_FORMAT_INFO_DEPTH (t_info))) {
/* Else get at least the one with the highest depth, ideally with the same flags */
out_info = t_info;
out_flags = t_flags;
}
}
/* accept input format immediately */
if (strcmp (fname, in_format) == 0) {
out_info = t_info;
break;
}
if (out_info)
gst_structure_set (outs, "format", G_TYPE_STRING,
GST_AUDIO_FORMAT_INFO_NAME (out_info), NULL);
} else {
/* nothing to fixate */
return;
t_flags = GST_AUDIO_FORMAT_INFO_FLAGS (t_info);
t_flags &= ~(GST_AUDIO_FORMAT_FLAG_UNPACK);
t_flags &= ~(GST_AUDIO_FORMAT_FLAG_SIGNED);
if (GST_AUDIO_FORMAT_INFO_DEPTH (t_info) ==
GST_AUDIO_FORMAT_INFO_DEPTH (in_info) && (!out_info
|| GST_AUDIO_FORMAT_INFO_DEPTH (out_info) !=
GST_AUDIO_FORMAT_INFO_DEPTH (in_info)
|| (t_flags == in_flags && out_flags != in_flags))) {
/* Prefer to use the first format that has the same depth with the same
* flags, and if none with the same flags exist use the first other one
* that has the same depth */
out_info = t_info;
out_flags = t_flags;
} else if (GST_AUDIO_FORMAT_INFO_DEPTH (t_info) >=
GST_AUDIO_FORMAT_INFO_DEPTH (in_info) && (!out_info
|| GST_AUDIO_FORMAT_INFO_DEPTH (in_info) >
GST_AUDIO_FORMAT_INFO_DEPTH (out_info)
|| (GST_AUDIO_FORMAT_INFO_DEPTH (out_info) >=
GST_AUDIO_FORMAT_INFO_DEPTH (in_info) && t_flags == in_flags
&& out_flags != in_flags))) {
/* Otherwise use the first format that has a higher depth with the same flags,
* if none with the same flags exist use the first other one that has a higher
* depth */
out_info = t_info;
out_flags = t_flags;
} else if (!out_info
|| (GST_AUDIO_FORMAT_INFO_DEPTH (t_info) >
GST_AUDIO_FORMAT_INFO_DEPTH (out_info)
&& GST_AUDIO_FORMAT_INFO_DEPTH (out_info) <
GST_AUDIO_FORMAT_INFO_DEPTH (in_info)) || (t_flags == in_flags
&& out_flags != in_flags
&& GST_AUDIO_FORMAT_INFO_DEPTH (out_info) ==
GST_AUDIO_FORMAT_INFO_DEPTH (t_info))) {
/* Else get at least the one with the highest depth, ideally with the same flags */
out_info = t_info;
out_flags = t_flags;
}
}
if (out_info)
gst_structure_set (outs, "format", G_TYPE_STRING,
GST_AUDIO_FORMAT_INFO_NAME (out_info), NULL);
}
static void