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pnmdec: propagate input state after parsing

Browse source 
Store and copy input state fields when setting the
output state of the decoder. Avoids problems like
the framerate set by an upstream element being ignored

Related to:

https://bugzilla.gnome.org/show_bug.cgi?id=756563
This commit is contained in:
Reynaldo H. Verdejo Pinochet 2015-10-17 01:51:24 -07:00
parent 4b5e2f68a3
commit ec5648763d
2 changed files with 32 additions and 1 deletions
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32
gst/pnm/gstpnmdec.c
View file

@ -44,6 +44,9 @@
#include <stdio.h>
static gboolean gst_pnmdec_start (GstVideoDecoder * decoder);
static gboolean gst_pnmdec_set_format (GstVideoDecoder * decoder,
GstVideoCodecState * state);
static gboolean gst_pnmdec_stop (GstVideoDecoder * decoder);
static GstFlowReturn gst_pnmdec_parse (GstVideoDecoder * decoder,
GstVideoCodecFrame * frame, GstAdapter * adapter, gboolean at_eos);
static GstFlowReturn gst_pnmdec_handle_frame (GstVideoDecoder * decoder,
@ -83,8 +86,10 @@ gst_pnmdec_class_init (GstPnmdecClass * klass)
"Lutz Mueller <lutz@users.sourceforge.net>");
vdec_class->start = gst_pnmdec_start;
vdec_class->stop = gst_pnmdec_stop;
vdec_class->parse = gst_pnmdec_parse;
vdec_class->handle_frame = gst_pnmdec_handle_frame;
vdec_class->set_format = gst_pnmdec_set_format;
}
static void
@ -111,6 +116,31 @@ gst_pnmdec_init (GstPnmdec * s)
GST_PAD_SET_ACCEPT_TEMPLATE (GST_VIDEO_DECODER_SINK_PAD (s));
}
static gboolean
gst_pnmdec_set_format (GstVideoDecoder * decoder, GstVideoCodecState * state)
{
GstPnmdec *pnmdec = (GstPnmdec *) decoder;
if (pnmdec->input_state)
gst_video_codec_state_unref (pnmdec->input_state);
pnmdec->input_state = gst_video_codec_state_ref (state);
return TRUE;
}
static gboolean
gst_pnmdec_stop (GstVideoDecoder * decoder)
{
GstPnmdec *pnmdec = (GstPnmdec *) decoder;
if (pnmdec->input_state) {
gst_video_codec_state_unref (pnmdec->input_state);
pnmdec->input_state = NULL;
}
return TRUE;
}
static GstFlowReturn
gst_pnmdec_parse_ascii (GstPnmdec * s, const guint8 * b, guint bs)
{
@ -330,7 +360,7 @@ gst_pnmdec_parse (GstVideoDecoder * decoder, GstVideoCodecFrame * frame,
}
output_state =
gst_video_decoder_set_output_state (GST_VIDEO_DECODER (s), format,
s->mngr.info.width, s->mngr.info.height, NULL);
s->mngr.info.width, s->mngr.info.height, s->input_state);
gst_video_codec_state_unref (output_state);
if (gst_video_decoder_negotiate (GST_VIDEO_DECODER (s)) == FALSE) {
r = GST_FLOW_NOT_NEGOTIATED;

1
gst/pnm/gstpnmdec.h
View file

@ -41,6 +41,7 @@ struct _GstPnmdec
GstElement element;
GstVideoDecoder decoder;
GstPnmInfoMngr mngr;
GstVideoCodecState *input_state;
guint size, last_byte, current_size ;
GstBuffer *buf;
};