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decoder: refine semantics of gst_vaapi_decoder_put_buffer().

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Improve the semantics for gst_vaapi_decoder_put_buffer() when an empty
buffer is passed on. An empty buffer is a buffer with a NULL data pointer
or with a size equals to zero. In this case, that buffer is simply
skipped and the function returns TRUE. A NULL buffer argument still
marks the end-of-stream.
This commit is contained in:
Gwenole Beauchesne 2012-10-09 14:48:00 +02:00
parent d7fccc351a
commit 86981eea41
1 changed files with 10 additions and 2 deletions
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12
gst-libs/gst/vaapi/gstvaapidecoder.c
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@ -389,7 +389,10 @@ gst_vaapi_decoder_get_caps(GstVaapiDecoder *decoder)
* Queues a #GstBuffer to the HW decoder. The decoder holds a
* reference to @buf.
*
* Caller can notify an End-Of-Stream with @buf set to %NULL.
* Caller can notify an End-Of-Stream with @buf set to %NULL. However,
* if an empty buffer is passed, i.e. a buffer with %NULL data pointer
* or size equals to zero, then the function ignores this buffer and
* returns %TRUE.
*
* Return value: %TRUE on success
*/
@ -398,7 +401,12 @@ gst_vaapi_decoder_put_buffer(GstVaapiDecoder *decoder, GstBuffer *buf)
{
g_return_val_if_fail(GST_VAAPI_IS_DECODER(decoder), FALSE);
return push_buffer(decoder, buf ? gst_buffer_ref(buf) : NULL);
if (buf) {
if (!GST_BUFFER_DATA(buf) || GST_BUFFER_SIZE(buf) <= 0)
return TRUE;
buf = gst_buffer_ref(buf);
}
return push_buffer(decoder, buf);
}
/**