Allow decoder/packetizer to output meta data.

They are ignored for now.

include/vlc_codec.h

@@ -62,10 +62,10 @@ struct decoder_t
     es_format_t         fmt_out;
 
     /* Some decoders only accept packetized data (ie. not truncated) */
-    bool          b_need_packetized;
+    bool                b_need_packetized;
 
     /* Tell the decoder if it is allowed to drop frames */
-    bool          b_pace_control;
+    bool                b_pace_control;
 
     /* */
     picture_t *         ( * pf_decode_video )( decoder_t *, block_t ** );
@@ -81,6 +81,12 @@ struct decoder_t
      * globaly, not necessary for the current packet */
     block_t *           ( * pf_get_cc )      ( decoder_t *, bool pb_present[4] );
 
+    /* Meta data at codec level
+     *  The decoder owner set it back to NULL once it has retreived what it needs.
+     *  The decoder owner is responsible of its release except when you overwrite it.
+     */
+    vlc_meta_t          *p_description;
+
     /*
      * Owner fields
      * XXX You MUST not use them directly.

modules/stream_out/mosaic_bridge.c

@@ -37,6 +37,7 @@
 #include <vlc_sout.h>
 #include <vlc_block.h>
 #include <vlc_codec.h>
+#include <vlc_meta.h>
 
 #include <vlc_image.h>
 #include <vlc_filter.h>
@@ -473,6 +474,9 @@ static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
 
         if( p_sys->p_decoder->p_module )
             module_unneed( p_sys->p_decoder, p_sys->p_decoder->p_module );
+        if( p_sys->p_decoder->p_description )
+            vlc_meta_Delete( p_sys->p_decoder->p_description );
+
         vlc_object_detach( p_sys->p_decoder );
         vlc_object_release( p_sys->p_decoder );
 

modules/stream_out/transcode.c

@@ -38,6 +38,7 @@
 #include <vlc_aout.h>
 #include <vlc_vout.h>
 #include <vlc_codec.h>
+#include <vlc_meta.h>
 #include <vlc_block.h>
 #include <vlc_filter.h>
 #include <vlc_osd.h>
@@ -1275,6 +1276,10 @@ static void transcode_audio_close( sout_stream_id_t *id )
         module_unneed( id->p_decoder, id->p_decoder->p_module );
     id->p_decoder->p_module = NULL;
 
+    if( id->p_decoder->p_description )
+        vlc_meta_Delete( id->p_decoder->p_description );
+    id->p_decoder->p_description = NULL;
+
     /* Close encoder */
     if( id->p_encoder->p_module )
         module_unneed( id->p_encoder, id->p_encoder->p_module );
@@ -1770,6 +1775,8 @@ static void transcode_video_close( sout_stream_t *p_stream,
     /* Close decoder */
     if( id->p_decoder->p_module )
         module_unneed( id->p_decoder, id->p_decoder->p_module );
+    if( id->p_decoder->p_description )
+        vlc_meta_Delete( id->p_decoder->p_description );
 
     if( id->p_decoder->p_owner )
     {
@@ -2315,6 +2322,8 @@ static void transcode_spu_close( sout_stream_id_t *id)
     /* Close decoder */
     if( id->p_decoder->p_module )
         module_unneed( id->p_decoder, id->p_decoder->p_module );
+    if( id->p_decoder->p_description )
+        vlc_meta_Delete( id->p_decoder->p_description );
 
     /* Close encoder */
     if( id->p_encoder->p_module )

src/input/decoder.c

@@ -687,13 +687,15 @@ static decoder_t * CreateDecoder( input_thread_t *p_input,
     p_dec->pf_get_cc = NULL;
     p_dec->pf_packetize = NULL;
 
-    /* Initialize the decoder fifo */
+    /* Initialize the decoder */
     p_dec->p_module = NULL;
 
     memset( &null_es_format, 0, sizeof(es_format_t) );
     es_format_Copy( &p_dec->fmt_in, fmt );
     es_format_Copy( &p_dec->fmt_out, &null_es_format );
 
+    p_dec->p_description = NULL;
+
     /* Allocate our private structure for the decoder */
     p_dec->p_owner = p_owner = malloc( sizeof( decoder_owner_sys_t ) );
     if( p_dec->p_owner == NULL )
@@ -2053,6 +2055,9 @@ static void DeleteDecoder( decoder_t * p_dec )
 
     es_format_Clean( &p_dec->fmt_in );
     es_format_Clean( &p_dec->fmt_out );
+    if( p_dec->p_description )
+        vlc_meta_Delete( p_dec->p_description );
+    es_format_Clean( &p_owner->fmt_description );
 
     if( p_owner->p_packetizer )
     {
@@ -2060,12 +2065,12 @@ static void DeleteDecoder( decoder_t * p_dec )
                        p_owner->p_packetizer->p_module );
         es_format_Clean( &p_owner->p_packetizer->fmt_in );
         es_format_Clean( &p_owner->p_packetizer->fmt_out );
+        if( p_owner->p_packetizer->p_description )
+            vlc_meta_Delete( p_owner->p_packetizer->p_description );
         vlc_object_detach( p_owner->p_packetizer );
         vlc_object_release( p_owner->p_packetizer );
     }
 
-    es_format_Clean( &p_owner->fmt_description );
-
     vlc_cond_destroy( &p_owner->wait );
     vlc_mutex_destroy( &p_owner->lock );
 

src/input/demux.c

@@ -28,6 +28,7 @@
 #include "demux.h"
 #include <libvlc.h>
 #include <vlc_codec.h>
+#include <vlc_meta.h>
 
 static bool SkipID3Tag( demux_t * );
 static bool SkipAPETag( demux_t *p_demux );
@@ -602,6 +603,8 @@ void demux_PacketizerDestroy( decoder_t *p_packetizer )
     if( p_packetizer->p_module )
         module_unneed( p_packetizer, p_packetizer->p_module );
     es_format_Clean( &p_packetizer->fmt_in );
+    if( p_packetizer->p_description )
+        vlc_meta_Delete( p_packetizer->p_description );
     vlc_object_release( p_packetizer );
 }
 

src/misc/image.c

@@ -39,6 +39,7 @@
 
 #include <vlc_common.h>
 #include <vlc_codec.h>
+#include <vlc_meta.h>
 #include <vlc_filter.h>
 #include <vlc_es.h>
 #include <vlc_image.h>
@@ -642,6 +643,9 @@ static void DeleteDecoder( decoder_t * p_dec )
     es_format_Clean( &p_dec->fmt_in );
     es_format_Clean( &p_dec->fmt_out );
 
+    if( p_dec->p_description )
+        vlc_meta_Delete( p_dec->p_description );
+
     vlc_object_release( p_dec );
     p_dec = NULL;
 }