avcodec: Allow encoding standard stricted to be from -2 to 2

Should fix #6184 as aac encoding seems to require --sout-ffmpeg-strict=-2

modules/codec/avcodec/avcodec.c

@@ -182,6 +182,7 @@ vlc_module_begin ()
                ENC_QSCALE_TEXT, ENC_QSCALE_LONGTEXT, true )
     add_integer( ENC_CFG_PREFIX "strict", 0,
                  ENC_STRICT_TEXT, ENC_STRICT_LONGTEXT, true )
+        change_integer_range( -2, 2 )
     add_float( ENC_CFG_PREFIX "lumi-masking", 0.0,
                ENC_LUMI_MASKING_TEXT, ENC_LUMI_MASKING_LONGTEXT, true )
     add_float( ENC_CFG_PREFIX "dark-masking", 0.0,

modules/codec/avcodec/avcodec.h

@@ -226,7 +226,7 @@ int ffmpeg_OpenCodec( decoder_t *p_dec );
 
 #define ENC_STRICT_TEXT N_( "Strict standard compliance" )
 #define ENC_STRICT_LONGTEXT N_( "Force a strict standard " \
-  "compliance when encoding (accepted values: -1, 0, 1)." )
+  "compliance when encoding (accepted values: -2 to 2)." )
 
 #define ENC_LUMI_MASKING_TEXT N_( "Luminance masking" )
 #define ENC_LUMI_MASKING_LONGTEXT N_( "Raise the quantizer for " \

modules/codec/avcodec/encoder.c

@@ -382,9 +382,7 @@ int OpenEncoder( vlc_object_t *p_this )
     p_sys->i_qmax = var_GetInteger( p_enc, ENC_CFG_PREFIX "qmax" );
     p_sys->b_trellis = var_GetBool( p_enc, ENC_CFG_PREFIX "trellis" );
 
-    i_val = var_GetInteger( p_enc, ENC_CFG_PREFIX "strict" );
-    if( i_val < - 1 || i_val > 1 ) i_val = 0;
-    p_context->strict_std_compliance = i_val;
+    p_context->strict_std_compliance = var_GetInteger( p_enc, ENC_CFG_PREFIX "strict" );
 
     p_sys->f_lumi_masking = var_GetFloat( p_enc, ENC_CFG_PREFIX "lumi-masking" );
     p_sys->f_dark_masking = var_GetFloat( p_enc, ENC_CFG_PREFIX "dark-masking" );