consumer_avformat.c: report list of muxers when f=list and codecs when acodec=list...

git-svn-id: https://mlt.svn.sourceforge.net/svnroot/mlt/trunk/mlt@1306 d19143bc-622f-0410-bfdd-b5b2a6649095

diff --git a/src/modules/avformat/consumer_avformat.c b/src/modules/avformat/consumer_avformat.c
index a56c3878427f11e2cda6979f15453bebbeddba17..d908db9c64d3d81293c1b2d9a2f5abf9ece04b2d 100644 (file)
--- a/src/modules/avformat/consumer_avformat.c
+++ b/src/modules/avformat/consumer_avformat.c
@@ -192,9 +192,44 @@ static int consumer_start( mlt_consumer this )
 {
        // Get the properties
        mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
+       int error = 0;
+
+       // Report information about available muxers and codecs as YAML Tiny
+       char *s = mlt_properties_get( properties, "f" );
+       if ( s && strcmp( s, "list" ) == 0 )
+       {
+               fprintf( stderr, "---\nformats:\n" );
+               AVOutputFormat *format = NULL;
+               while ( ( format = av_oformat_next( format ) ) )
+                       fprintf( stderr, "  - %s\n", format->name );
+               fprintf( stderr, "...\n" );
+               error = 1;
+       }
+       s = mlt_properties_get( properties, "acodec" );
+       if ( s && strcmp( s, "list" ) == 0 )
+       {
+               fprintf( stderr, "---\naudio_codecs:\n" );
+               AVCodec *codec = NULL;
+               while ( ( codec = av_codec_next( codec ) ) )
+                       if ( codec->encode && codec->type == CODEC_TYPE_AUDIO )
+                               fprintf( stderr, "  - %s\n", codec->name );
+               fprintf( stderr, "...\n" );
+               error = 1;
+       }
+       s = mlt_properties_get( properties, "vcodec" );
+       if ( s && strcmp( s, "list" ) == 0 )
+       {
+               fprintf( stderr, "---\nvideo_codecs:\n" );
+               AVCodec *codec = NULL;
+               while ( ( codec = av_codec_next( codec ) ) )
+                       if ( codec->encode && codec->type == CODEC_TYPE_VIDEO )
+                               fprintf( stderr, "  - %s\n", codec->name );
+               fprintf( stderr, "...\n" );
+               error = 1;
+       }
 
        // Check that we're not already running
-       if ( !mlt_properties_get_int( properties, "running" ) )
+       if ( !error && !mlt_properties_get_int( properties, "running" ) )
        {
                // Allocate a thread
                pthread_t *thread = calloc( 1, sizeof( pthread_t ) );
@@ -266,7 +301,7 @@ static int consumer_start( mlt_consumer this )
                // Create the thread
                pthread_create( thread, NULL, consumer_thread, this );
        }
-       return 0;
+       return error;
 }
 
 /** Stop the consumer.