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basevideodecoder: add some sanity enforcing

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This commit is contained in:
Mark Nauwelaerts 2011-03-30 09:17:22 +02:00
parent f72658435b
commit 550237347b
2 changed files with 29 additions and 3 deletions
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30
gst-libs/gst/video/gstbasevideodecoder.c
View file

@ -899,6 +899,9 @@ gst_base_video_decoder_chain (GstPad * pad, GstBuffer * buf)
base_video_decoder = GST_BASE_VIDEO_DECODER (gst_pad_get_parent (pad));
klass = GST_BASE_VIDEO_DECODER_GET_CLASS (base_video_decoder);
g_return_val_if_fail (base_video_decoder->packetized || klass->parse_data,
GST_FLOW_ERROR);
GST_LOG_OBJECT (base_video_decoder,
"chain %" GST_TIME_FORMAT " duration %" GST_TIME_FORMAT " size %d",
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)),
@ -1432,6 +1435,9 @@ gst_base_video_decoder_have_frame_2 (GstBaseVideoDecoder * base_video_decoder)
base_video_decoder_class =
GST_BASE_VIDEO_DECODER_GET_CLASS (base_video_decoder);
g_return_val_if_fail (base_video_decoder_class->handle_frame != NULL,
GST_FLOW_ERROR);
frame->distance_from_sync = base_video_decoder->distance_from_sync;
base_video_decoder->distance_from_sync++;
@ -1565,15 +1571,31 @@ gst_base_video_decoder_get_frame (GstBaseVideoDecoder * base_video_decoder,
* Sets src pad caps according to currently configured #GstVideoState.
*
*/
void
gboolean
gst_base_video_decoder_set_src_caps (GstBaseVideoDecoder * base_video_decoder)
{
GstCaps *caps;
GstVideoState *state = &GST_BASE_VIDEO_CODEC (base_video_decoder)->state;
gboolean ret;
/* minimum sense */
g_return_val_if_fail (state->format != GST_VIDEO_FORMAT_UNKNOWN, FALSE);
g_return_val_if_fail (state->width != 0, FALSE);
g_return_val_if_fail (state->height != 0, FALSE);
if (GST_PAD_CAPS (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_decoder)) != NULL)
return;
/* sanitize */
if (state->fps_d == 0) {
state->fps_n = 0;
state->fps_d = 1;
}
if (state->par_d == 0) {
state->par_n = 0;
state->par_d = 1;
}
caps = gst_video_format_new_caps (state->format,
state->width, state->height,
state->fps_n, state->fps_d, state->par_n, state->par_d);
@ -1585,9 +1607,13 @@ gst_base_video_decoder_set_src_caps (GstBaseVideoDecoder * base_video_decoder)
GST_DEBUG_OBJECT (base_video_decoder, "setting caps %" GST_PTR_FORMAT, caps);
gst_pad_set_caps (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_decoder), caps);
ret =
gst_pad_set_caps (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_decoder),
caps);
gst_caps_unref (caps);
return ret;
}
/**

2
gst-libs/gst/video/gstbasevideodecoder.h
View file

@ -199,7 +199,7 @@ void gst_base_video_decoder_lost_sync (GstBaseVideoDecoder *base_vid
GstFlowReturn gst_base_video_decoder_have_frame (GstBaseVideoDecoder *base_video_decoder);
void gst_base_video_decoder_set_sync_point (GstBaseVideoDecoder *base_video_decoder);
void gst_base_video_decoder_set_src_caps (GstBaseVideoDecoder *base_video_decoder);
gboolean gst_base_video_decoder_set_src_caps (GstBaseVideoDecoder *base_video_decoder);
GstBuffer *gst_base_video_decoder_alloc_src_buffer (GstBaseVideoDecoder * base_video_decoder);
GstFlowReturn gst_base_video_decoder_alloc_src_frame (GstBaseVideoDecoder *base_video_decoder,
GstVideoFrame *frame);