vlc | branch: master | Rémi Denis-Courmont <r...@remlab.net> | Tue Mar  3 
23:33:39 2020 +0200| [7fc6e51819e060255990b2f5307f5d46efcd6e4c] | committer: 
Rémi Denis-Courmont

sout: distinguish filter and output capabilities

This removes the "sout stream" capability, and adds two new ones instead:
- "sout output" for final nodes in the sout chain, and
- "sout filter" for non-final nodes in the sout chain.

This is mainly to prevent impossible / non-working chain constructs.

Note: In practice, only "cycle" and "stats" plugins supported both modes
in any meaningful mannter. They are split into two submodules each.

> http://git.videolan.org/gitweb.cgi/vlc.git/?a=commit;h=7fc6e51819e060255990b2f5307f5d46efcd6e4c
---

 modules/services_discovery/upnp.cpp      | 2 +-
 modules/stream_out/autodel.c             | 2 +-
 modules/stream_out/bridge.c              | 4 ++--
 modules/stream_out/chromaprint.c         | 2 +-
 modules/stream_out/chromecast/cast.cpp   | 4 ++--
 modules/stream_out/cycle.c               | 6 +++++-
 modules/stream_out/delay.c               | 2 +-
 modules/stream_out/display.c             | 2 +-
 modules/stream_out/dummy.c               | 2 +-
 modules/stream_out/duplicate.c           | 2 +-
 modules/stream_out/es.c                  | 2 +-
 modules/stream_out/gather.c              | 2 +-
 modules/stream_out/mosaic_bridge.c       | 2 +-
 modules/stream_out/record.c              | 2 +-
 modules/stream_out/rtp.c                 | 2 +-
 modules/stream_out/sdi/sdiout.cpp        | 2 +-
 modules/stream_out/setid.c               | 4 ++--
 modules/stream_out/smem.c                | 2 +-
 modules/stream_out/standard.c            | 2 +-
 modules/stream_out/stats.c               | 4 ++--
 modules/stream_out/transcode/transcode.c | 2 +-
 src/stream_output/stream_output.c        | 4 ++--
 22 files changed, 31 insertions(+), 27 deletions(-)

diff --git a/modules/services_discovery/upnp.cpp 
b/modules/services_discovery/upnp.cpp
index 4f0a8d24c2..357d03be6d 100644
--- a/modules/services_discovery/upnp.cpp
+++ b/modules/services_discovery/upnp.cpp
@@ -167,7 +167,7 @@ vlc_module_begin()
     add_submodule()
         set_shortname("dlna")
         set_description(N_("UPnP/DLNA stream output"))
-        set_capability("sout stream", 0)
+        set_capability("sout output", 0)
         add_shortcut("dlna")
         set_category(CAT_SOUT)
         set_subcategory(SUBCAT_SOUT_STREAM)
diff --git a/modules/stream_out/autodel.c b/modules/stream_out/autodel.c
index cb3cbccc39..02ae06b1a2 100644
--- a/modules/stream_out/autodel.c
+++ b/modules/stream_out/autodel.c
@@ -44,7 +44,7 @@ static void Close   ( vlc_object_t * );
 vlc_module_begin ()
     set_shortname( N_("Autodel"))
     set_description( N_("Automatically add/delete input streams"))
-    set_capability( "sout stream", 50 )
+    set_capability( "sout filter", 50 )
     add_shortcut( "autodel" )
     set_callbacks( Open, Close )
 vlc_module_end ()
diff --git a/modules/stream_out/bridge.c b/modules/stream_out/bridge.c
index 003c036f5d..7e9c741b18 100644
--- a/modules/stream_out/bridge.c
+++ b/modules/stream_out/bridge.c
@@ -92,7 +92,7 @@ vlc_module_begin ()
     set_description( N_("Bridge stream output"))
     add_submodule ()
     set_section( N_("Bridge out"), NULL )
-    set_capability( "sout stream", 50 )
+    set_capability( "sout output", 50 )
     add_shortcut( "bridge-out" )
     /* Only usable with VLM. No category so not in gui preferences
     set_category( CAT_SOUT )
@@ -105,7 +105,7 @@ vlc_module_begin ()
 
     add_submodule ()
     set_section( N_("Bridge in"), NULL )
-    set_capability( "sout stream", 50 )
+    set_capability( "sout filter", 50 )
     add_shortcut( "bridge-in" )
     /*set_category( CAT_SOUT )
     set_subcategory( SUBCAT_SOUT_STREAM )*/
diff --git a/modules/stream_out/chromaprint.c b/modules/stream_out/chromaprint.c
index 8d580e8d06..8ae33881f9 100644
--- a/modules/stream_out/chromaprint.c
+++ b/modules/stream_out/chromaprint.c
@@ -58,7 +58,7 @@ static int   Send( sout_stream_t *, void *, block_t * );
 
 vlc_module_begin ()
     set_description( N_("Chromaprint stream output") )
-    set_capability( "sout stream", 0 )
+    set_capability( "sout output", 0 )
     add_shortcut( "chromaprint" )
     add_integer( "duration", 90, DURATION_TEXT, DURATION_LONGTEXT, true )
     set_callbacks( Open, Close )
diff --git a/modules/stream_out/chromecast/cast.cpp 
b/modules/stream_out/chromecast/cast.cpp
index 97b6368295..ed83a333f2 100644
--- a/modules/stream_out/chromecast/cast.cpp
+++ b/modules/stream_out/chromecast/cast.cpp
@@ -212,7 +212,7 @@ vlc_module_begin ()
 
     set_shortname(N_("Chromecast"))
     set_description(N_("Chromecast stream output"))
-    set_capability("sout stream", 0)
+    set_capability("sout output", 0)
     add_shortcut("chromecast")
     set_category(CAT_SOUT)
     set_subcategory(SUBCAT_SOUT_STREAM)
@@ -232,7 +232,7 @@ vlc_module_begin ()
     add_submodule()
         /* sout proxy that start the cc input when all streams are loaded */
         add_shortcut("chromecast-proxy")
-        set_capability("sout stream", 0)
+        set_capability("sout filter", 0)
         set_callback(ProxyOpen)
     add_submodule()
         set_subcategory(SUBCAT_SOUT_ACO)
diff --git a/modules/stream_out/cycle.c b/modules/stream_out/cycle.c
index 0c7481339e..673f126dbd 100644
--- a/modules/stream_out/cycle.c
+++ b/modules/stream_out/cycle.c
@@ -326,9 +326,13 @@ static void Close(vlc_object_t *obj)
 vlc_module_begin()
     set_shortname(N_("cycle"))
     set_description(N_("Cyclic stream output"))
-    set_capability("sout stream", 0)
+    set_capability("sout output", 0)
     set_category(CAT_SOUT)
     set_subcategory(SUBCAT_SOUT_STREAM)
     set_callbacks(Open, Close)
     add_shortcut("cycle")
+    add_submodule()
+    add_shortcut("cycle")
+    set_capability("sout filter", 0)
+    set_callbacks(Open, Close)
 vlc_module_end()
diff --git a/modules/stream_out/delay.c b/modules/stream_out/delay.c
index ff04a2ed73..2c23d87034 100644
--- a/modules/stream_out/delay.c
+++ b/modules/stream_out/delay.c
@@ -52,7 +52,7 @@ static void Close   ( vlc_object_t * );
 vlc_module_begin()
     set_shortname( N_("Delay"))
     set_description( N_("Delay a stream"))
-    set_capability( "sout stream", 50 )
+    set_capability( "sout filter", 50 )
     add_shortcut( "delay" )
     set_category( CAT_SOUT )
     set_subcategory( SUBCAT_SOUT_STREAM )
diff --git a/modules/stream_out/display.c b/modules/stream_out/display.c
index 32562329b7..2f84ce408b 100644
--- a/modules/stream_out/display.c
+++ b/modules/stream_out/display.c
@@ -52,7 +52,7 @@ static void Close( vlc_object_t * );
 vlc_module_begin ()
     set_shortname( N_("Display"))
     set_description( N_("Display stream output") )
-    set_capability( "sout stream", 50 )
+    set_capability( "sout output", 50 )
     add_shortcut( "display" )
     set_category( CAT_SOUT )
     set_subcategory( SUBCAT_SOUT_STREAM )
diff --git a/modules/stream_out/dummy.c b/modules/stream_out/dummy.c
index cb37798cee..07686fd1c8 100644
--- a/modules/stream_out/dummy.c
+++ b/modules/stream_out/dummy.c
@@ -47,7 +47,7 @@ static int   Send( sout_stream_t *, void *, block_t* );
  *****************************************************************************/
 vlc_module_begin ()
     set_description( N_("Dummy stream output") )
-    set_capability( "sout stream", 50 )
+    set_capability( "sout output", 50 )
     add_shortcut( "dummy", "drop" )
     set_callback( Open )
 vlc_module_end ()
diff --git a/modules/stream_out/duplicate.c b/modules/stream_out/duplicate.c
index 916b264b92..516a852d18 100644
--- a/modules/stream_out/duplicate.c
+++ b/modules/stream_out/duplicate.c
@@ -41,7 +41,7 @@ static void     Close   ( vlc_object_t * );
 
 vlc_module_begin ()
     set_description( N_("Duplicate stream output") )
-    set_capability( "sout stream", 50 )
+    set_capability( "sout output", 50 )
     add_shortcut( "duplicate", "dup" )
     set_category( CAT_SOUT )
     set_subcategory( SUBCAT_SOUT_STREAM )
diff --git a/modules/stream_out/es.c b/modules/stream_out/es.c
index 03d1f671e1..f21e6be55c 100644
--- a/modules/stream_out/es.c
+++ b/modules/stream_out/es.c
@@ -76,7 +76,7 @@ static void     Close   ( vlc_object_t * );
 vlc_module_begin ()
     set_shortname( "ES" )
     set_description( N_("Elementary stream output") )
-    set_capability( "sout stream", 50 )
+    set_capability( "sout output", 50 )
     add_shortcut( "es" )
     set_category( CAT_SOUT )
     set_subcategory( SUBCAT_SOUT_STREAM )
diff --git a/modules/stream_out/gather.c b/modules/stream_out/gather.c
index 4fc4fc16f6..bcbff9803d 100644
--- a/modules/stream_out/gather.c
+++ b/modules/stream_out/gather.c
@@ -41,7 +41,7 @@ static void     Close   ( vlc_object_t * );
 
 vlc_module_begin ()
     set_description( N_("Gathering stream output") )
-    set_capability( "sout stream", 50 )
+    set_capability( "sout filter", 50 )
     add_shortcut( "gather" )
     set_callbacks( Open, Close )
 vlc_module_end ()
diff --git a/modules/stream_out/mosaic_bridge.c 
b/modules/stream_out/mosaic_bridge.c
index 63846634e3..518ea73b30 100644
--- a/modules/stream_out/mosaic_bridge.c
+++ b/modules/stream_out/mosaic_bridge.c
@@ -140,7 +140,7 @@ static int yCallback( vlc_object_t *, char const *,
 vlc_module_begin ()
     set_shortname( N_( "Mosaic bridge" ) )
     set_description(N_("Mosaic bridge stream output") )
-    set_capability( "sout stream", 0 )
+    set_capability( "sout output", 0 )
     add_shortcut( "mosaic-bridge" )
 
     add_string( CFG_PREFIX "id", "Id", ID_TEXT, ID_LONGTEXT,
diff --git a/modules/stream_out/record.c b/modules/stream_out/record.c
index 50348224fc..ce2ce958e7 100644
--- a/modules/stream_out/record.c
+++ b/modules/stream_out/record.c
@@ -54,7 +54,7 @@ static void     Close   ( vlc_object_t * );
 
 vlc_module_begin ()
     set_description( N_("Record stream output") )
-    set_capability( "sout stream", 0 )
+    set_capability( "sout output", 0 )
     add_shortcut( "record" )
     set_shortname( N_("Record") )
 
diff --git a/modules/stream_out/rtp.c b/modules/stream_out/rtp.c
index c471b46266..f4a089e79a 100644
--- a/modules/stream_out/rtp.c
+++ b/modules/stream_out/rtp.c
@@ -186,7 +186,7 @@ static void Close( vlc_object_t * );
 vlc_module_begin ()
     set_shortname( N_("RTP"))
     set_description( N_("RTP stream output") )
-    set_capability( "sout stream", 0 )
+    set_capability( "sout output", 0 )
     add_shortcut( "rtp" )
     set_category( CAT_SOUT )
     set_subcategory( SUBCAT_SOUT_STREAM )
diff --git a/modules/stream_out/sdi/sdiout.cpp 
b/modules/stream_out/sdi/sdiout.cpp
index ef47f10538..56797a1fdb 100644
--- a/modules/stream_out/sdi/sdiout.cpp
+++ b/modules/stream_out/sdi/sdiout.cpp
@@ -177,7 +177,7 @@ vlc_module_begin ()
 
     set_shortname(N_("SDI output"))
     set_description(N_("SDI stream output"))
-    set_capability("sout stream", 0)
+    set_capability("sout output", 0)
     add_shortcut("sdiout")
     set_category(CAT_SOUT)
     set_subcategory(SUBCAT_SOUT_STREAM)
diff --git a/modules/stream_out/setid.c b/modules/stream_out/setid.c
index 208f7e5028..7ae348f27f 100644
--- a/modules/stream_out/setid.c
+++ b/modules/stream_out/setid.c
@@ -61,7 +61,7 @@ vlc_module_begin()
     set_shortname( N_("Set ID"))
     set_section( N_("Set ES id"), NULL )
     set_description( N_("Change the id of an elementary stream"))
-    set_capability( "sout stream", 50 )
+    set_capability( "sout filter", 50 )
     add_shortcut( "setid" )
     set_category( CAT_SOUT )
     set_subcategory( SUBCAT_SOUT_STREAM )
@@ -74,7 +74,7 @@ vlc_module_begin()
     set_section( N_("Set ES Lang"), NULL )
     set_shortname( N_("Set Lang"))
     set_description( N_("Change the language of an elementary stream"))
-    set_capability( "sout stream", 50 )
+    set_capability( "sout filter", 50 )
     add_shortcut( "setlang" );
     set_callbacks( OpenLang, Close )
     add_integer( SOUT_CFG_PREFIX_LANG "id", 0, ID_TEXT, ID_LONGTEXT, false )
diff --git a/modules/stream_out/smem.c b/modules/stream_out/smem.c
index be462be205..01e3ad565a 100644
--- a/modules/stream_out/smem.c
+++ b/modules/stream_out/smem.c
@@ -94,7 +94,7 @@ static void Close( vlc_object_t * );
 vlc_module_begin ()
     set_shortname( N_("Smem"))
     set_description( N_("Stream output to memory buffer") )
-    set_capability( "sout stream", 0 )
+    set_capability( "sout output", 0 )
     add_shortcut( "smem" )
     set_category( CAT_SOUT )
     set_subcategory( SUBCAT_SOUT_STREAM )
diff --git a/modules/stream_out/standard.c b/modules/stream_out/standard.c
index 5c3717ea8a..105bc206c3 100644
--- a/modules/stream_out/standard.c
+++ b/modules/stream_out/standard.c
@@ -90,7 +90,7 @@ static void     Close   ( vlc_object_t * );
 vlc_module_begin ()
     set_shortname( N_("Standard"))
     set_description( N_("Standard stream output") )
-    set_capability( "sout stream", 50 )
+    set_capability( "sout output", 50 )
     add_shortcut( "standard", "std", "file", "http", "udp", SRT_SHORTCUT )
     set_category( CAT_SOUT )
     set_subcategory( SUBCAT_SOUT_STREAM )
diff --git a/modules/stream_out/stats.c b/modules/stream_out/stats.c
index 5cbb97c2f1..d6dd7cc0cb 100644
--- a/modules/stream_out/stats.c
+++ b/modules/stream_out/stats.c
@@ -294,7 +294,7 @@ static void Close( vlc_object_t * p_this )
 vlc_module_begin()
     set_shortname( N_("Stats"))
     set_description( N_("Writes statistic info about stream"))
-    set_capability( "sout stream", 0 )
+    set_capability( "sout output", 0 )
     add_shortcut( "stats" )
     set_category( CAT_SOUT )
     set_subcategory( SUBCAT_SOUT_STREAM )
@@ -302,7 +302,7 @@ vlc_module_begin()
     add_string( SOUT_CFG_PREFIX "output", "", OUTPUT_TEXT,OUTPUT_LONGTEXT, 
false );
     add_string( SOUT_CFG_PREFIX "prefix", "stats", PREFIX_TEXT,PREFIX_TEXT, 
false );
     add_submodule()
-    set_capability( "sout stream", 0 )
+    set_capability( "sout filter", 0 )
     add_shortcut( "stats" )
     set_callbacks( FilterOpen, Close )
 vlc_module_end()
diff --git a/modules/stream_out/transcode/transcode.c 
b/modules/stream_out/transcode/transcode.c
index 8f0c3d06e6..a4bdc000e9 100644
--- a/modules/stream_out/transcode/transcode.c
+++ b/modules/stream_out/transcode/transcode.c
@@ -144,7 +144,7 @@ static void Close( vlc_object_t * );
 vlc_module_begin ()
     set_shortname( N_("Transcode"))
     set_description( N_("Transcode stream output") )
-    set_capability( "sout stream", 50 )
+    set_capability( "sout filter", 50 )
     add_shortcut( "transcode" )
     set_callbacks( Open, Close )
     set_category( CAT_SOUT )
diff --git a/src/stream_output/stream_output.c 
b/src/stream_output/stream_output.c
index dd83aef1c4..a89b6601c5 100644
--- a/src/stream_output/stream_output.c
+++ b/src/stream_output/stream_output.c
@@ -797,6 +797,7 @@ void sout_StreamChainDelete(sout_stream_t *p_first, 
sout_stream_t *p_last)
 static sout_stream_t *sout_StreamNew( sout_instance_t *p_sout, char *psz_name,
                                config_chain_t *p_cfg, sout_stream_t *p_next)
 {
+    const char *cap = (p_next != NULL) ? "sout filter" : "sout output";
     sout_stream_t *p_stream;
 
     assert(psz_name);
@@ -816,8 +817,7 @@ static sout_stream_t *sout_StreamNew( sout_instance_t 
*p_sout, char *psz_name,
 
     msg_Dbg( p_sout, "stream=`%s'", p_stream->psz_name );
 
-    p_stream->p_module =
-        module_need( p_stream, "sout stream", p_stream->psz_name, true );
+    p_stream->p_module = module_need( p_stream, cap, p_stream->psz_name, true 
);
 
     if( !p_stream->p_module )
     {

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