@@ -82,6 +82,8 @@ static const AVOption colormatrix_options[] = {

     { "bt709",     "set BT.709 colorspace",      0, AV_OPT_TYPE_CONST, {.i64=COLOR_MODE_BT709},       .flags=FLAGS, .unit="color_mode" },

     { "fcc",       "set FCC colorspace   ",      0, AV_OPT_TYPE_CONST, {.i64=COLOR_MODE_FCC},         .flags=FLAGS, .unit="color_mode" },

     { "bt601",     "set BT.601 colorspace",      0, AV_OPT_TYPE_CONST, {.i64=COLOR_MODE_BT601},       .flags=FLAGS, .unit="color_mode" },

+    { "bt470",     "set BT.470 colorspace",      0, AV_OPT_TYPE_CONST, {.i64=COLOR_MODE_BT601},       .flags=FLAGS, .unit="color_mode" },

+    { "smpte170m", "set SMTPE-170M colorspace",  0, AV_OPT_TYPE_CONST, {.i64=COLOR_MODE_BT601},       .flags=FLAGS, .unit="color_mode" },

     { "smpte240m", "set SMPTE-240M colorspace",  0, AV_OPT_TYPE_CONST, {.i64=COLOR_MODE_SMPTE240M},   .flags=FLAGS, .unit="color_mode" },

     { NULL }

 };

@@ -351,6 +353,7 @@ static int filter_frame(AVFilterLink *link, AVFrame *in)

         case AVCOL_SPC_FCC       : source = COLOR_MODE_FCC       ; break;

         case AVCOL_SPC_SMPTE240M : source = COLOR_MODE_SMPTE240M ; break;

         case AVCOL_SPC_BT470BG   : source = COLOR_MODE_BT601     ; break;

+        case AVCOL_SPC_SMPTE170M : source = COLOR_MODE_BT601     ; break;

         default :

             av_log(ctx, AV_LOG_ERROR, "Input frame does not specify a supported colorspace, and none has been specified as source either\n");

             av_frame_free(&out);