Convert elements to use gst_pad_use_explicit_caps() where appropriate.

Original commit message from CVS:
Convert elements to use gst_pad_use_explicit_caps() where appropriate.

ChangeLog

@@ -1,3 +1,55 @@
+2004-01-01  David Schleef  <ds@schleef.org>
+
+	Convert elements to use gst_pad_use_explicit_caps() where
+	appropriate:
+	* ext/a52dec/gsta52dec.c: (gst_a52dec_init), (gst_a52dec_reneg):
+	* ext/audiofile/gstafparse.c: (gst_afparse_init),
+	(gst_afparse_open_file):
+	* ext/audiofile/gstafsrc.c: (gst_afsrc_init),
+	(gst_afsrc_open_file):
+	* ext/esd/esdmon.c: (gst_esdmon_init), (gst_esdmon_get):
+	* ext/ffmpeg/gstffmpegdec.c: (gst_ffmpegdec_init),
+	(gst_ffmpegdec_chain):
+	* ext/ffmpeg/gstffmpegdemux.c: (gst_ffmpegdemux_loop):
+	* ext/flac/gstflacdec.c: (gst_flacdec_init), (gst_flacdec_write):
+	* ext/gdk_pixbuf/gstgdkpixbuf.c: (gst_gdk_pixbuf_init),
+	(gst_gdk_pixbuf_chain):
+	* ext/jpeg/gstjpegdec.c: (gst_jpegdec_init), (gst_jpegdec_link),
+	(gst_jpegdec_chain):
+	* ext/mad/gstmad.c: (gst_mad_init), (gst_mad_chain):
+	* ext/mikmod/gstmikmod.c: (gst_mikmod_init),
+	(gst_mikmod_negotiate):
+	* ext/mpeg2dec/gstmpeg2dec.c: (gst_mpeg2dec_init),
+	(gst_mpeg2dec_negotiate_format):
+	* ext/mpeg2enc/gstmpeg2enc.cc:
+	* ext/ogg/gstoggdemux.c: (gst_ogg_pad_push):
+	* ext/speex/gstspeexdec.c: (gst_speexdec_init),
+	(gst_speexdec_sinkconnect):
+	* ext/swfdec/gstswfdec.c: (gst_swfdec_loop), (gst_swfdec_init):
+	* ext/vorbis/vorbisfile.c: (gst_vorbisfile_init),
+	(gst_vorbisfile_new_link):
+	* gst/ac3parse/gstac3parse.c: (gst_ac3parse_init),
+	(gst_ac3parse_chain):
+	* gst/asfdemux/gstasfdemux.c: (gst_asf_demux_add_audio_stream),
+	(gst_asf_demux_setup_pad):
+	* gst/auparse/gstauparse.c: (gst_auparse_init),
+	(gst_auparse_chain):
+	* gst/id3/gstid3types.c: (gst_id3types_loop):
+	* gst/matroska/matroska-demux.c: (gst_matroska_demux_add_stream):
+	* gst/mpeg1videoparse/gstmp1videoparse.c: (gst_mp1videoparse_init),
+	(mp1videoparse_parse_seq):
+	* gst/mpegaudioparse/gstmpegaudioparse.c: (gst_mp3parse_init),
+	(bpf_from_header):
+	* gst/mpegstream/gstmpegdemux.c: (gst_mpeg_demux_parse_syshead),
+	(gst_mpeg_demux_parse_pes), (gst_mpeg_demux_lpcm_set_caps):
+	* gst/mpegstream/gstmpegparse.c: (gst_mpeg_parse_init),
+	(gst_mpeg_parse_send_data):
+	* gst/qtdemux/qtdemux.c: (gst_qtdemux_loop_header),
+	(gst_qtdemux_add_stream):
+	* gst/realmedia/rmdemux.c: (gst_rmdemux_add_stream):
+	* gst/wavparse/gstwavparse.c: (gst_wavparse_init),
+	(gst_wavparse_parse_fmt):
+
 2004-01-01  Ronald Bultje  <rbultje@ronald.bitfreak.net>
 
 	* configure.ac:

ext/a52dec/gsta52dec.c

@@ -178,6 +178,7 @@ gst_a52dec_init (GstA52Dec * a52dec)
 
   a52dec->srcpad = gst_pad_new_from_template (
       gst_element_get_pad_template (GST_ELEMENT (a52dec), "src"), "src");
+  gst_pad_use_explicit_caps (a52dec->srcpad);
   gst_element_add_pad (GST_ELEMENT (a52dec), a52dec->srcpad);
 
   a52dec->dynamic_range_compression = FALSE;
@@ -365,17 +366,15 @@ gst_a52dec_reneg (GstPad * pad, int channels, int rate)
 {
   GST_INFO ( "a52dec: reneg channels:%d rate:%d\n", channels, rate);
 
-  if (gst_pad_try_set_caps (pad, 
-        gst_caps_new_simple ("audio/x-raw-int",
-          "endianness",	G_TYPE_INT, G_BYTE_ORDER,
-          "signed", 	G_TYPE_BOOLEAN, TRUE,
-          "width", 	G_TYPE_INT, 16,
-          "depth", 	G_TYPE_INT, 16,
-          "channels", 	G_TYPE_INT, channels,
-          "rate", 	G_TYPE_INT, rate,
-          NULL)) <= 0) {
-    gst_element_error (GST_PAD_PARENT (pad), "could not set caps on source pad, aborting...");
-  }
+  gst_pad_set_explicit_caps (pad, 
+      gst_caps_new_simple ("audio/x-raw-int",
+	"endianness",	G_TYPE_INT, G_BYTE_ORDER,
+	"signed", 	G_TYPE_BOOLEAN, TRUE,
+	"width", 	G_TYPE_INT, 16,
+	"depth", 	G_TYPE_INT, 16,
+	"channels", 	G_TYPE_INT, channels,
+	"rate", 	G_TYPE_INT, rate,
+	NULL));
 }
 
 static void

ext/mad/gstmad.c

@@ -309,6 +309,7 @@ gst_mad_init (GstMad *mad)
   gst_pad_set_query_type_function (mad->srcpad, GST_DEBUG_FUNCPTR (gst_mad_get_query_types));
   gst_pad_set_convert_function (mad->srcpad, GST_DEBUG_FUNCPTR (gst_mad_convert_src));
   gst_pad_set_formats_function (mad->srcpad, GST_DEBUG_FUNCPTR (gst_mad_get_formats));
+  gst_pad_use_explicit_caps (mad->srcpad);
 
   mad->tempbuffer = g_malloc (MAD_BUFFER_MDLEN * 3);
   mad->tempsize = 0;
@@ -1057,14 +1058,12 @@ gst_mad_chain (GstPad *pad, GstData *_data)
       gst_mad_update_info (mad);
 
       if (mad->channels != nchannels || mad->rate != rate) {
-        GstPadLinkReturn ret;
-
         if (mad->stream.options & MAD_OPTION_HALFSAMPLERATE)
 	  rate >>=1;
 
 	/* we set the caps even when the pad is not connected so they
 	 * can be gotten for streaminfo */
-        ret = gst_pad_try_set_caps (mad->srcpad,
+        gst_pad_set_explicit_caps (mad->srcpad,
 	    gst_caps_new_simple ("audio/x-raw-int",
 	      "endianness",  G_TYPE_INT, G_BYTE_ORDER,
 	      "signed",      G_TYPE_BOOLEAN, TRUE,
@@ -1073,10 +1072,6 @@ gst_mad_chain (GstPad *pad, GstData *_data)
 	      "rate",        G_TYPE_INT, rate,
 	      "channels",    G_TYPE_INT, nchannels,
 	      NULL));
-        if (GST_PAD_LINK_FAILED (ret)) {
-          gst_element_error (GST_ELEMENT (mad), "Could not set caps on source pad");
-          return;
-        }
 	mad->channels = nchannels;
 	mad->rate = rate;
       }

ext/mpeg2dec/gstmpeg2dec.c

@@ -197,6 +197,7 @@ gst_mpeg2dec_init (GstMpeg2dec *mpeg2dec)
   mpeg2dec->srcpad = gst_pad_new_from_template (
 		  gst_static_pad_template_get (&src_template_factory), "src");
   gst_element_add_pad (GST_ELEMENT (mpeg2dec), mpeg2dec->srcpad);
+  gst_pad_use_explicit_caps (mpeg2dec->srcpad);
   gst_pad_set_formats_function (mpeg2dec->srcpad, GST_DEBUG_FUNCPTR (gst_mpeg2dec_get_src_formats));
   gst_pad_set_event_mask_function (mpeg2dec->srcpad, GST_DEBUG_FUNCPTR (gst_mpeg2dec_get_src_event_masks));
   gst_pad_set_event_function (mpeg2dec->srcpad, GST_DEBUG_FUNCPTR (gst_mpeg2dec_src_event));
@@ -328,7 +329,7 @@ gst_mpeg2dec_negotiate_format (GstMpeg2dec *mpeg2dec)
       "framerate",    G_TYPE_DOUBLE, 1. * GST_SECOND / mpeg2dec->frame_period,
       NULL);
 
-  ret = gst_pad_try_set_caps (mpeg2dec->srcpad, caps);
+  ret = gst_pad_set_explicit_caps (mpeg2dec->srcpad, caps);
   if (ret != GST_PAD_LINK_OK) return FALSE;
 
   /* it worked, try to find what it was again */

gst/ac3parse/gstac3parse.c

@@ -194,6 +194,7 @@ gst_ac3parse_init (GstAc3Parse *ac3parse)
 
   ac3parse->srcpad = gst_pad_new_from_template (
       gst_static_pad_template_get (&gst_ac3parse_src_template), "src");
+  gst_pad_use_explicit_caps (ac3parse->srcpad);
   gst_element_add_pad (GST_ELEMENT (ac3parse), ac3parse->srcpad);
 
   ac3parse->partialbuf = NULL;
@@ -341,11 +342,7 @@ gst_ac3parse_chain (GstPad *pad, GstData *_data)
           newcaps = gst_caps_new_simple ("audio/x-ac3",
 	      "channels", G_TYPE_INT, channels,
 	      "rate",     G_TYPE_INT, sample_rate, NULL);
-          if (gst_pad_try_set_caps (ac3parse->srcpad, newcaps) <= 0) {
-            gst_element_error (GST_ELEMENT (ac3parse),
-			       "Ac3parse: failed to negotiate format with next element");
-            return;
-          }
+          gst_pad_set_explicit_caps (ac3parse->srcpad, newcaps);
         }
 
 	offset += bpf;

gst/asfdemux/gstasfdemux.c

@@ -78,7 +78,7 @@ static gboolean            gst_asf_demux_add_audio_stream (GstASFDemux *asf_demu
 							   guint16 id);
 static gboolean            gst_asf_demux_setup_pad        (GstASFDemux *asf_demux,
 							   GstPad *src_pad,
-							   GstCaps *caps_list,
+							   GstCaps *caps,
 							   guint16 id);
 
 static GstElementStateReturn gst_asf_demux_change_state   (GstElement *element);
@@ -1392,6 +1392,8 @@ gst_asf_demux_add_audio_stream (GstASFDemux *asf_demux,
   src_pad = gst_pad_new_from_template (audiosrctempl, name);
   g_free (name);
 
+  gst_pad_use_explicit_caps (src_pad);
+
   /* Swallow up any left over data */
   if (size_left) {
     g_warning ("asfdemux: Audio header contains %d bytes of surplus data", size_left);
@@ -1575,12 +1577,12 @@ gst_asf_demux_add_video_stream (GstASFDemux *asf_demux,
 static gboolean
 gst_asf_demux_setup_pad (GstASFDemux *asf_demux,
 			 GstPad *src_pad,
-			 GstCaps *caps_list,
+			 GstCaps *caps,
 			 guint16 id)
 {
   asf_stream_context *stream;
 
-  gst_pad_try_set_caps (src_pad, caps_list);
+  gst_pad_set_explicit_caps (src_pad, caps);
   gst_pad_set_formats_function (src_pad, gst_asf_demux_get_src_formats);
   gst_pad_set_event_mask_function (src_pad, gst_asf_demux_get_src_event_mask);
   gst_pad_set_event_function (src_pad, gst_asf_demux_handle_src_event);

gst/mpegaudioparse/gstmpegaudioparse.c

@@ -290,6 +290,7 @@ gst_mp3parse_init (GstMPEGAudioParse *mp3parse)
   mp3parse->srcpad = gst_pad_new_from_template(
       gst_static_pad_template_get (&mp3_src_template), "src");
   gst_element_add_pad(GST_ELEMENT(mp3parse),mp3parse->srcpad);
+  gst_pad_use_explicit_caps (mp3parse->srcpad);
   /*gst_pad_set_type_id(mp3parse->srcpad, mp3frametype); */
 
   mp3parse->partialbuf = NULL;
@@ -465,10 +466,7 @@ bpf_from_header (GstMPEGAudioParse *parse, unsigned long header)
       bitrate  != parse->bit_rate) {
     GstCaps *caps = mp3_caps_create (layer, channels, bitrate, rate);
 
-    if (gst_pad_try_set_caps(parse->srcpad, caps) <= 0) {
-      gst_element_error (GST_ELEMENT (parse),
-                         "mp3parse: failed to negotiate format with next element");
-    }
+    gst_pad_set_explicit_caps(parse->srcpad, caps);
 
     parse->channels = channels;
     parse->layer    = layer;

gst/mpegstream/gstmpegdemux.c

@@ -458,11 +458,7 @@ gst_mpeg_demux_parse_syshead (GstMPEGParse *mpeg_parse, GstBuffer *buffer)
         outpad = &((*outstream)->pad);
 			
 	*outpad = gst_pad_new_from_template (newtemp, name);
-	if (!caps) {
-          gst_pad_try_set_caps (*outpad, gst_pad_template_get_caps (newtemp));
-        } else {
-          gst_pad_try_set_caps (*outpad, caps);
-        }
+	gst_element_add_pad (GST_ELEMENT (mpeg_demux), (*outpad));
 
 	gst_pad_set_formats_function (*outpad, gst_mpeg_demux_get_src_formats);
 	gst_pad_set_convert_function (*outpad, gst_mpeg_parse_convert_src);
@@ -470,8 +466,10 @@ gst_mpeg_demux_parse_syshead (GstMPEGParse *mpeg_parse, GstBuffer *buffer)
 	gst_pad_set_event_function (*outpad, gst_mpeg_demux_handle_src_event);
 	gst_pad_set_query_type_function (*outpad, gst_mpeg_parse_get_src_query_types);
 	gst_pad_set_query_function (*outpad, gst_mpeg_parse_handle_src_query);
+	gst_pad_use_explicit_caps (*outpad);
+
+        gst_pad_set_explicit_caps (*outpad, caps);
 
-	gst_element_add_pad (GST_ELEMENT (mpeg_demux), (*outpad));
 	gst_pad_set_element_private (*outpad, *outstream);
 
 	(*outstream)->size_bound = buf_byte_size_bound;
@@ -910,18 +908,7 @@ gst_mpeg_demux_parse_pes (GstMPEGParse *mpeg_parse, GstBuffer *buffer)
 
       /* create the pad and add it to self */
       *outpad = gst_pad_new_from_template (newtemp, name);
-      if (ps_id_code < 0xA0 || ps_id_code > 0xA7) {
-	if (!caps) {
-          gst_pad_try_set_caps (*outpad, gst_pad_template_get_caps (newtemp));
-        } else {
-          gst_pad_try_set_caps (*outpad, caps);
-        }
-      }
-      else {
-        gst_mpeg_demux_lpcm_set_caps(*outpad,
-                                     mpeg_demux->lpcm_sample_info[ps_id_code
-                                                                  - 0xA0]);
-      }
+      gst_element_add_pad(GST_ELEMENT(mpeg_demux), *outpad);
 
       gst_pad_set_formats_function (*outpad, gst_mpeg_demux_get_src_formats);
       gst_pad_set_convert_function (*outpad, gst_mpeg_parse_convert_src);
@@ -929,8 +916,17 @@ gst_mpeg_demux_parse_pes (GstMPEGParse *mpeg_parse, GstBuffer *buffer)
       gst_pad_set_event_function (*outpad, gst_mpeg_demux_handle_src_event);
       gst_pad_set_query_type_function (*outpad, gst_mpeg_parse_get_src_query_types);
       gst_pad_set_query_function (*outpad, gst_mpeg_parse_handle_src_query);
+      gst_pad_use_explicit_caps (*outpad);
+
+      if (ps_id_code < 0xA0 || ps_id_code > 0xA7) {
+        gst_pad_set_explicit_caps (*outpad, caps);
+      }
+      else {
+        gst_mpeg_demux_lpcm_set_caps(*outpad,
+                                     mpeg_demux->lpcm_sample_info[ps_id_code
+                                                                  - 0xA0]);
+      }
 
-      gst_element_add_pad(GST_ELEMENT(mpeg_demux), *outpad);
       gst_pad_set_element_private (*outpad, *outstream);
 
       if (mpeg_demux->index)
@@ -1023,7 +1019,7 @@ gst_mpeg_demux_lpcm_set_caps (GstPad *pad, guint8 sample_info)
       "depth",            G_TYPE_INT, width,
       "rate",             G_TYPE_INT, rate,
       "channels",         G_TYPE_INT, channels, NULL);
-  gst_pad_try_set_caps (pad, caps);
+  gst_pad_set_explicit_caps (pad, caps);
 }
 
 /**

gst/mpegstream/gstmpegparse.c

@@ -194,6 +194,7 @@ gst_mpeg_parse_init (GstMPEGParse *mpeg_parse)
   gst_pad_set_event_function (mpeg_parse->srcpad, gst_mpeg_parse_handle_src_event);
   gst_pad_set_query_type_function (mpeg_parse->srcpad, gst_mpeg_parse_get_src_query_types);
   gst_pad_set_query_function (mpeg_parse->srcpad, gst_mpeg_parse_handle_src_query);
+  gst_pad_use_explicit_caps (mpeg_parse->srcpad);
 
   gst_element_set_loop_function (GST_ELEMENT (mpeg_parse), gst_mpeg_parse_loop);
 
@@ -274,15 +275,11 @@ gst_mpeg_parse_send_data (GstMPEGParse *mpeg_parse, GstData *data, GstClockTime
     if (!GST_PAD_CAPS (mpeg_parse->srcpad)) {
       gboolean mpeg2 = GST_MPEG_PACKETIZE_IS_MPEG2 (mpeg_parse->packetize);
 
-      if (gst_pad_try_set_caps (mpeg_parse->srcpad,
-	    gst_caps_new_simple ("video/mpeg",
-	      "mpegversion",  G_TYPE_INT,  (mpeg2 ? 2 : 1),
-	      "systemstream", G_TYPE_BOOLEAN, TRUE,
-	      "parsed",       G_TYPE_BOOLEAN, TRUE, NULL)) < 0)
-      {
-	gst_element_error (GST_ELEMENT (mpeg_parse), "could no set source caps");
-	return;
-      }
+      gst_pad_set_explicit_caps (mpeg_parse->srcpad,
+	  gst_caps_new_simple ("video/mpeg",
+	    "mpegversion",  G_TYPE_INT,  (mpeg2 ? 2 : 1),
+	    "systemstream", G_TYPE_BOOLEAN, TRUE,
+	    "parsed",       G_TYPE_BOOLEAN, TRUE, NULL));
     }
 
     GST_BUFFER_TIMESTAMP (data) = time;

gst/realmedia/rmdemux.c

@@ -462,47 +462,6 @@ static void gst_rmdemux_loop (GstElement *element)
 
 }
 
-static GstCaps *gst_rmdemux_src_getcaps(GstPad *pad)
-{
-  GstRMDemux *rmdemux;
-  GstRMDemuxStream *stream;
-
-  GST_DEBUG ("gst_rmdemux_src_getcaps");
-
-  rmdemux = GST_RMDEMUX(gst_pad_get_parent(pad));
-
-  g_return_val_if_fail(GST_IS_RMDEMUX(rmdemux), NULL);
-
-  stream = GST_PAD_ELEMENT_PRIVATE (pad);
-  return gst_caps_copy(stream->caps);
-}
-
-#ifdef unused
-/* This function is not useful currently */
-static GstPadLinkReturn
-gst_rmdemux_src_link(GstPad *pad, static GstCaps *caps)
-{
-  GstRMDemux *rmdemux;
-  GstRMDemuxStream *stream;
-  int i;
-
-  GST_DEBUG ("gst_rmdemux_src_link");
-
-  rmdemux = GST_RMDEMUX(gst_pad_get_parent(pad));
-
-  GST_DEBUG ("looking for pad %p in rmdemux %p", pad, rmdemux);
-  g_return_val_if_fail(GST_IS_RMDEMUX(rmdemux), GST_PAD_LINK_REFUSED);
-
-  GST_DEBUG ("n_streams is %d\n", rmdemux->n_streams);
-  stream = GST_PAD_ELEMENT_PRIVATE (pad);
-  return GST_PAD_LINK_OK;
-
-  GST_DEBUG ("Couldn't find stream cooresponding to pad\n");
-
-  return GST_PAD_LINK_REFUSED;
-}
-#endif
-
 static GstRMDemuxStream *gst_rmdemux_get_stream_by_id(GstRMDemux *rmdemux,
     int id)
 {
@@ -551,20 +510,14 @@ void gst_rmdemux_add_stream(GstRMDemux *rmdemux, GstRMDemuxStream *stream)
   g_print("n_streams is now %d\n", rmdemux->n_streams);
 
   if(stream->pad){
-    gst_pad_set_getcaps_function(stream->pad, gst_rmdemux_src_getcaps);
-#ifdef unused
-    gst_pad_set_link_function(stream->pad, gst_rmdemux_src_link);
-#endif
+    gst_pad_use_explicit_caps (stream->pad);
 
     g_print("adding pad %p to rmdemux %p\n", stream->pad, rmdemux);
     gst_element_add_pad(GST_ELEMENT (rmdemux), stream->pad);
 
-    /* Note: we need to have everything set up before calling try_set_caps */
-    if(stream->caps){
-      GST_DEBUG_CAPS("setting caps",stream->caps);
+    GST_DEBUG_CAPS("setting caps",stream->caps);
 
-      gst_pad_try_set_caps(stream->pad, stream->caps);
-    }
+    gst_pad_set_explicit_caps(stream->pad, stream->caps);
   }
 }