Enable --scaling-list parameter and add to the documentation

README.md

@@ -119,6 +119,10 @@ Video structure:
                                      (e.g. lp-g8d4t2, see README)
       --(no-)open-gop        : Use open GOP configuration. [enabled]
       --cqmfile <filename>   : Read custom quantization matrices from a file.
+      --scaling-list <string>: Set scaling list mode. [off]\n"
+                                   - off: Disable scaling lists.\n"
+                                   - custom: use custom list (with --cqmfile).\n"
+                                   - default: Use default lists.\n"
       --bitrate <integer>    : Target bitrate [0]
                                    - 0: Disable rate control.
                                    - N: Target N bits per second.

doc/kvazaar.1

@@ -127,6 +127,12 @@ Use open GOP configuration. [enabled]
 \fB\-\-cqmfile <filename>  
 Read custom quantization matrices from a file.
 .TP
+\fB\-\-scaling-list <string>
+Set scaling list mode. [off]
+    \- off: Disable scaling lists.
+    \- custom: use custom list (with \-\-cqmfile).
+    \- default: Use default lists.
+.TP
 \fB\-\-bitrate <integer>   
 Target bitrate [0]
     \- 0: Disable rate control.

src/cfg.c

@@ -136,6 +136,8 @@ int kvz_config_init(kvz_config *cfg)
 
   cfg->me_max_steps = (uint32_t)-1;
 
+  cfg->scaling_list = KVZ_SCALING_LIST_OFF;
+
   return 1;
 }
 
@@ -379,6 +381,8 @@ int kvz_config_parse(kvz_config *cfg, const char *name, const char *value)
 
   static const char * const sao_names[] = { "off", "edge", "band", "full", NULL };
 
+  static const char * const scaling_list_names[] = { "off", "custom", "default", NULL };
+
   static const char * const preset_values[11][23*2] = {
       {
         "ultrafast",
@@ -758,6 +762,13 @@ int kvz_config_parse(kvz_config *cfg, const char *name, const char *value)
     }
     FREE_POINTER(cfg->cqmfile);
     cfg->cqmfile = cqmfile;
+    cfg->scaling_list = KVZ_SCALING_LIST_CUSTOM;
+  }
+  else if OPT("scaling-list") {    
+    int8_t scaling_list = KVZ_SCALING_LIST_OFF;
+    int result = parse_enum(value, scaling_list_names, &scaling_list);
+    cfg->scaling_list = scaling_list;
+    return result;
   }
   else if OPT("tiles-width-split") {
     int retval = parse_tiles_specification(value, &cfg->tiles_width_count, &cfg->tiles_width_split);
@@ -1517,6 +1528,11 @@ int kvz_config_validate(const kvz_config *const cfg)
     error = 1;
   }
 
+  if ((cfg->scaling_list == KVZ_SCALING_LIST_CUSTOM) && !cfg->cqmfile) {
+    fprintf(stderr, "Input error: --scaling-list=custom does not work without --cqmfile=<FILE>.\n");
+    error = 1;
+  }
+
   if (validate_hevc_level((kvz_config *const) cfg)) {
     // a level error found and it's not okay
     error = 1;

src/cli.c

@@ -133,6 +133,7 @@ static const struct option long_options[] = {
   { "set-qp-in-cu",             no_argument, NULL, 0 },
   { "open-gop",                 no_argument, NULL, 0 },
   { "no-open-gop",              no_argument, NULL, 0 },
+  { "scaling-list",       required_argument, NULL, 0 },
   {0, 0, 0, 0}
 };
 
@@ -399,6 +400,10 @@ void print_help(void)
     "                                     (e.g. lp-g8d4t2, see README)\n"
     "      --(no-)open-gop        : Use open GOP configuration. [enabled]\n"
     "      --cqmfile <filename>   : Read custom quantization matrices from a file.\n"
+    "      --scaling-list <string>: Set scaling list mode. [off]\n"
+    "                                   - off: Disable scaling lists.\n"
+    "                                   - custom: use custom list (with --cqmfile).\n"
+    "                                   - default: Use default lists.\n"
     "      --bitrate <integer>    : Target bitrate [0]\n"
     "                                   - 0: Disable rate control.\n"
     "                                   - N: Target N bits per second.\n"

src/encoder.c

@@ -305,7 +305,7 @@ encoder_control_t* kvz_encoder_control_init(const kvz_config *const cfg)
   kvz_scalinglist_init(&encoder->scaling_list);
 
   // CQM
-  if (cfg->cqmfile) {
+  if (cfg->scaling_list == KVZ_SCALING_LIST_CUSTOM && cfg->cqmfile) {
     FILE* cqmfile = fopen(cfg->cqmfile, "rb");
     if (cqmfile) {
       kvz_scalinglist_parse(&encoder->scaling_list, cqmfile);
@@ -314,7 +314,12 @@ encoder_control_t* kvz_encoder_control_init(const kvz_config *const cfg)
       fprintf(stderr, "Could not open CQM file.\n");
       goto init_failed;
     }
+  } else if (cfg->scaling_list == KVZ_SCALING_LIST_DEFAULT) {
+    // Enable scaling lists if default lists are used
+    encoder->scaling_list.enable = 1;
+    encoder->scaling_list.use_default_list = 1;
   }
+
   kvz_scalinglist_process(&encoder->scaling_list, encoder->bitdepth);
 
   kvz_encoder_control_input_init(encoder, encoder->cfg.width, encoder->cfg.height);

src/encoder_state-bitstream.c

@@ -395,9 +395,12 @@ static void encoder_state_write_bitstream_seq_parameter_set(bitstream_t* stream,
   // scaling list
   WRITE_U(stream, encoder->scaling_list.enable, 1, "scaling_list_enable_flag");
   if (encoder->scaling_list.enable) {
-    WRITE_U(stream, 1, 1, "sps_scaling_list_data_present_flag");
+    // Signal scaling list data for custom lists
+    WRITE_U(stream, (encoder->cfg.scaling_list == KVZ_SCALING_LIST_CUSTOM) ? 1 : 0, 1, "sps_scaling_list_data_present_flag");
+    if (encoder->cfg.scaling_list == KVZ_SCALING_LIST_CUSTOM) {
       encoder_state_write_bitstream_scaling_list(stream, state);
     }
+  }
 
   WRITE_U(stream, (encoder->cfg.amp_enable ? 1 : 0), 1, "amp_enabled_flag");
 

src/kvazaar.h

@@ -207,6 +207,12 @@ enum kvz_sao {
   KVZ_SAO_FULL = 3
 };
 
+enum kvz_scalinglist {
+  KVZ_SCALING_LIST_OFF = 0,
+  KVZ_SCALING_LIST_CUSTOM = 1,
+  KVZ_SCALING_LIST_DEFAULT = 2,  
+};
+
 // Map from input format to chroma format.
 #define KVZ_FORMAT2CSP(format) ((enum kvz_chroma_format)"\0\1\2\3"[format])
 
@@ -375,6 +381,9 @@ typedef struct kvz_config
   /** \brief Flag to enable/disable open GOP configuration */
   int8_t open_gop;
 
+  /** \brief Type of scaling lists to use */
+  int8_t scaling_list;
+
 } kvz_config;
 
 /**

src/scalinglist.c

@@ -102,6 +102,7 @@ void kvz_scalinglist_init(scaling_list_t * const scaling_list)
   }
   
   scaling_list->enable = 0;
+  scaling_list->use_default_list = 0;
 }
 
 /**
@@ -397,9 +398,9 @@ void kvz_scalinglist_process(scaling_list_t * const scaling_list, uint8_t bitdep
 
   for (size = 0; size < SCALING_LIST_SIZE_NUM; size++) {
     for (list = 0; list < kvz_g_scaling_list_num[size]; list++) {
-      const int32_t * const list_ptr = scaling_list->enable ?
-                                       scaling_list->scaling_list_coeff[size][list] :
-                                       kvz_scalinglist_get_default(size, list);
+      const int32_t * const list_ptr = scaling_list->use_default_list ?
+                                       kvz_scalinglist_get_default(size, list) :
+                                       scaling_list->scaling_list_coeff[size][list];
 
       for (qp = 0; qp < SCALING_LIST_REM_NUM; qp++) {
         kvz_scalinglist_set(scaling_list, list_ptr, list, size, qp);

src/scalinglist.h

@@ -33,6 +33,7 @@
 
 typedef struct {
         int8_t   enable;
+        int8_t   use_default_list;
         int32_t  scaling_list_dc   [SCALING_LIST_SIZE_NUM][SCALING_LIST_NUM];
   const int32_t *scaling_list_coeff[SCALING_LIST_SIZE_NUM][SCALING_LIST_NUM];
   const int32_t *quant_coeff[4][6][6];