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riff-media: Check for valid channels/rate before using the values

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Otherwise we might divide by zero or otherwise create invalid caps.

https://bugzilla.gnome.org/show_bug.cgi?id=777262
This commit is contained in:
Sebastian Dröge 2017-01-15 18:31:56 +01:00
parent 3bf38e4e1b
commit 81d3ba3fa2
1 changed files with 4 additions and 2 deletions
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6
gst-libs/gst/riff/riff-media.c
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@ -1615,7 +1615,8 @@ gst_riff_create_audio_caps (guint16 codec_id,
subformat_guid[2] == 0xaa000080 && subformat_guid[3] == 0x719b3800) {
if (subformat_guid[0] == 0x00000001) {
GST_DEBUG ("PCM");
if (strf != NULL) {
if (strf != NULL && strf->blockalign != 0 && strf->channels != 0
&& strf->rate != 0) {
gint ba = strf->blockalign;
gint wd = ba * 8 / strf->channels;
gint ws;
@ -1648,7 +1649,8 @@ gst_riff_create_audio_caps (guint16 codec_id,
}
} else if (subformat_guid[0] == 0x00000003) {
GST_DEBUG ("FLOAT");
if (strf != NULL) {
if (strf != NULL && strf->blockalign != 0 && strf->channels != 0
&& strf->rate != 0) {
gint ba = strf->blockalign;
gint wd = ba * 8 / strf->channels;