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audioconvert: Map buffer as READWRITE if the buffer and memory is writable

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and only use the input buffer as temporary buffer in that case.

https://bugzilla.gnome.org/show_bug.cgi?id=709408
This commit is contained in:
Matej Knopp 2013-10-04 13:57:51 +02:00 committed by Sebastian Dröge
parent 6bb58eec8a
commit 12f85c325d
1 changed files with 8 additions and 2 deletions
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10
gst/audioconvert/gstaudioconvert.c
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@ -789,6 +789,7 @@ gst_audio_convert_transform (GstBaseTransform * base, GstBuffer * inbuf,
GstAudioConvert *this = GST_AUDIO_CONVERT (base);
GstMapInfo srcmap, dstmap;
gint insize, outsize;
gboolean inbuf_writable;
gint samples;
@ -803,8 +804,13 @@ gst_audio_convert_transform (GstBaseTransform * base, GstBuffer * inbuf,
if (insize == 0 || outsize == 0)
return GST_FLOW_OK;
inbuf_writable = gst_buffer_is_writable (inbuf)
&& gst_buffer_n_memory (inbuf) == 1
&& gst_memory_is_writable (gst_buffer_peek_memory (inbuf, 0));
/* get src and dst data */
gst_buffer_map (inbuf, &srcmap, GST_MAP_READ);
gst_buffer_map (inbuf, &srcmap,
inbuf_writable ? GST_MAP_READWRITE : GST_MAP_READ);
gst_buffer_map (outbuf, &dstmap, GST_MAP_WRITE);
/* check in and outsize */
@ -816,7 +822,7 @@ gst_audio_convert_transform (GstBaseTransform * base, GstBuffer * inbuf,
/* and convert the samples */
if (!GST_BUFFER_FLAG_IS_SET (inbuf, GST_BUFFER_FLAG_GAP)) {
if (!audio_convert_convert (&this->ctx, srcmap.data, dstmap.data,
samples, gst_buffer_is_writable (inbuf)))
samples, inbuf_writable))
goto convert_error;
} else {
/* Create silence buffer */