demux: mpeg: return frame size for dts and skip framing checks with raw dts

This reverts commit 1f0c9de8.

modules/demux/mpeg/es.c

@@ -632,7 +632,8 @@ static int GenericProbe( demux_t *p_demux, int64_t *pi_offset,
         int i_size = pf_check( &p_peek[i_skip], &i_samples );
         if( i_size >= 0 )
         {
-            if( i_size == 0 )
+            if( i_size == 0 || /* 0 sized frame ?? */
+                i_skip == 0 /* exact match from start, we're not WAVE either, so skip multiple checks (would break if padding) */ )
                 break;
 
             /* If we have the frame size, check the next frame for
@@ -1019,29 +1020,10 @@ static int DtsCheckSync( const uint8_t *p_peek, int *pi_samples )
                                     &i_frame_length,
                                     &i_audio_mode );
 
-    if( i_frame_size < 95 || i_frame_size > 16383 )
-        return VLC_EGENERIC;
-
-    switch( i_sample_rate )
-    {
-        case 0b0001:
-        case 0b0010:
-        case 0b0011:
-        case 0b0110:
-        case 0b0111:
-        case 0b1000:
-        case 0b1011:
-        case 0b1100:
-        case 0b1101:
-            break;
-        default:
-            return VLC_EGENERIC;
-    }
-
-    if( !i_bit_rate || i_bit_rate > 0x11101 )
+    if( i_frame_size != VLC_EGENERIC && i_frame_size <= 8192 )
+        return i_frame_size;
+    else
         return VLC_EGENERIC;
-
-    return VLC_SUCCESS;
 }
 
 static int DtsProbe( demux_t *p_demux, int64_t *pi_offset )