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videomixer: Remove some redundant checks and error out immediately if not negotiated

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Also stop leaking the output buffer in some error cases.
This commit is contained in:
Sebastian Dröge 2009-07-10 17:25:48 +02:00
parent 4ccd9c92ae
commit 0775db4455
1 changed files with 21 additions and 26 deletions
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47
gst/videomixer/videomixer.c
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@ -606,6 +606,8 @@ gst_videomixer_reset (GstVideoMixer * mix)
mix->segment_position = 0;
mix->segment_rate = 1.0;
mix->fmt = GST_VIDEO_FORMAT_UNKNOWN;
mix->last_ts = 0;
/* clean up collect data */
@ -1190,13 +1192,9 @@ gst_videomixer_blend_buffers (GstVideoMixer * mix, GstBuffer * outbuf)
if (GST_CLOCK_TIME_IS_VALID (stream_time))
gst_object_sync_values (G_OBJECT (pad), stream_time);
if (G_UNLIKELY (mix->blend == NULL)) {
GST_ERROR_OBJECT (mix, "blend function not set");
} else {
(mix->blend) (GST_BUFFER_DATA (mixcol->buffer),
pad->xpos, pad->ypos, pad->in_width, pad->in_height, pad->alpha,
GST_BUFFER_DATA (outbuf), mix->out_width, mix->out_height);
}
mix->blend (GST_BUFFER_DATA (mixcol->buffer),
pad->xpos, pad->ypos, pad->in_width, pad->in_height, pad->alpha,
GST_BUFFER_DATA (outbuf), mix->out_width, mix->out_height);
if (pad == mix->master) {
gint64 running_time;
@ -1265,6 +1263,10 @@ gst_videomixer_collected (GstCollectPads * pads, GstVideoMixer * mix)
g_return_val_if_fail (GST_IS_VIDEO_MIXER (mix), GST_FLOW_ERROR);
/* This must be set, otherwise we have no caps */
if (G_UNLIKELY (mix->in_width == 0))
return GST_FLOW_NOT_NEGOTIATED;
GST_LOG ("all pads are collected");
GST_VIDEO_MIXER_STATE_LOCK (mix);
@ -1310,35 +1312,25 @@ gst_videomixer_collected (GstCollectPads * pads, GstVideoMixer * mix)
outsize, GST_PAD_CAPS (mix->srcpad), &outbuf);
}
/* This must be set at this point, otherwise we have no src caps */
g_assert (mix->blend != NULL);
if (ret != GST_FLOW_OK) {
goto error;
}
switch (mix->background) {
case VIDEO_MIXER_BACKGROUND_CHECKER:
if (G_UNLIKELY (mix->fill_checker == NULL)) {
goto error;
} else {
mix->fill_checker (GST_BUFFER_DATA (outbuf), mix->out_width,
mix->out_height);
}
mix->fill_checker (GST_BUFFER_DATA (outbuf), mix->out_width,
mix->out_height);
break;
case VIDEO_MIXER_BACKGROUND_BLACK:
if (G_UNLIKELY (mix->fill_color == NULL)) {
goto error;
} else {
mix->fill_color (GST_BUFFER_DATA (outbuf), mix->out_width,
mix->out_height, 16, 128, 128);
}
mix->fill_color (GST_BUFFER_DATA (outbuf), mix->out_width,
mix->out_height, 16, 128, 128);
break;
case VIDEO_MIXER_BACKGROUND_WHITE:
if (G_UNLIKELY (mix->fill_color == NULL)) {
goto error;
} else {
mix->fill_color (GST_BUFFER_DATA (outbuf), mix->out_width,
mix->out_height, 240, 128, 128);
}
mix->fill_color (GST_BUFFER_DATA (outbuf), mix->out_width,
mix->out_height, 240, 128, 128);
break;
}
@ -1355,6 +1347,9 @@ beach:
/* ERRORS */
error:
{
if (outbuf)
gst_buffer_unref (outbuf);
GST_VIDEO_MIXER_STATE_UNLOCK (mix);
goto beach;
}