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Code Issues 1 Projects Releases Wiki Activity

mpg123: fix compiler warning and simplify checks in set_caps

Browse source 
https://bugzilla.gnome.org/show_bug.cgi?id=740195
This commit is contained in:
Tim-Philipp Müller 2015-01-11 01:08:08 +00:00
parent 2fe38328d2
commit e42f8627b6
1 changed files with 40 additions and 45 deletions
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35
ext/mpg123/gstmpg123audiodec.c
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@ -485,6 +485,9 @@ gst_mpg123_audio_dec_set_format (GstAudioDecoder * dec, GstCaps * input_caps)
"srcpad is not linked (yet) -> using S16 sample format");
format = GST_AUDIO_FORMAT_S16;
encoding = MPG123_ENC_SIGNED_16;
} else if (gst_caps_is_empty (allowed_srccaps)) {
gst_caps_unref (allowed_srccaps);
goto done;
} else {
gchar const *format_str;
GValue const *format_value;
@ -493,7 +496,10 @@ gst_mpg123_audio_dec_set_format (GstAudioDecoder * dec, GstCaps * input_caps)
GstStructure *structure = gst_caps_get_structure (allowed_srccaps, 0);
format_value = gst_structure_get_value (structure, "format");
if (GST_VALUE_HOLDS_LIST (format_value)) {
if (format_value == NULL) {
gst_caps_unref (allowed_srccaps);
goto done;
} else if (GST_VALUE_HOLDS_LIST (format_value)) {
/* if value is a format list, pick the first entry */
GValue const *fmt_list_value =
gst_value_list_get_value (format_value, 0);
@ -502,26 +508,19 @@ gst_mpg123_audio_dec_set_format (GstAudioDecoder * dec, GstCaps * input_caps)
/* if value is a string, use it directly */
format_str = g_value_get_string (format_value);
} else {
GST_ERROR_OBJECT (mpg123_decoder,
"format value in caps structure %" GST_PTR_FORMAT
" is of invalid type (must be plain string or string list)",
structure);
format_str = NULL;
GST_ERROR_OBJECT (mpg123_decoder, "unexpected type for 'format' field "
"in caps structure %" GST_PTR_FORMAT, structure);
gst_caps_unref (allowed_srccaps);
goto done;
}
format = GST_AUDIO_FORMAT_UNKNOWN;
/* get the format value from the string */
if (G_LIKELY (format_str != NULL)) {
format = gst_audio_format_from_string (format_str);
if (G_UNLIKELY (format == GST_AUDIO_FORMAT_UNKNOWN)) {
GST_ERROR_OBJECT (mpg123_decoder, "format \"%s\" is invalid",
format_str);
}
}
gst_caps_unref (allowed_srccaps);
g_assert (format != GST_AUDIO_FORMAT_UNKNOWN);
/* convert format to mpg123 encoding */
if (G_LIKELY (format != GST_AUDIO_FORMAT_UNKNOWN)) {
switch (format) {
case GST_AUDIO_FORMAT_S16:
encoding = MPG123_ENC_SIGNED_16;
@ -545,14 +544,10 @@ gst_mpg123_audio_dec_set_format (GstAudioDecoder * dec, GstCaps * input_caps)
encoding = MPG123_ENC_FLOAT_32;
break;
default:
GST_DEBUG_OBJECT (dec,
"Format %s in srccaps is not supported", format_str);
g_assert_not_reached ();
goto done;
}
}
gst_caps_unref (allowed_srccaps);
}
}
/* Sample rate, number of channels, and sample format are known at this point.