Write Kvazaar's version and encoding options in an user data unregistered SEI.

src/encmain.c

@@ -82,7 +82,7 @@ int main(int argc, char *argv[])
   if (!cfg || !config_init(cfg) || !config_read(cfg,argc,argv)) {
     fprintf(stderr,
             "/***********************************************/\n"
-            " *   Kvazaar HEVC Encoder v. " VERSION_STRING "*\n"
+            " *   Kvazaar HEVC Encoder v. " VERSION_STRING "             *\n"
             " *     Tampere University of Technology 2014   *\n"
             "/***********************************************/\n\n");
       

src/encoder.c

@@ -425,6 +425,15 @@ void encode_one_frame(encoder_control* encoder)
               encoder->stream->buffer_pos, 0, NAL_PPS_NUT, 0, 1);
     bitstream_clear_buffer(encoder->stream);
 
+    if (encoder->frame == 0) {
+      encode_prefix_sei_version(encoder);
+      bitstream_align(encoder->stream);
+      bitstream_flush(encoder->stream);
+      nal_write(encoder->output, encoder->stream->buffer,
+                encoder->stream->buffer_pos, 0, PREFIX_SEI_NUT, 0, 0);
+      bitstream_clear_buffer(encoder->stream);
+    }
+
     // First slice is IDR
     cabac_start(&cabac);
     scalinglist_process();
@@ -586,6 +595,45 @@ void encode_access_unit_delimiter(encoder_control* encoder)
   WRITE_U(encoder->stream, pic_type, 3, "pic_type");
 }
 
+void encode_prefix_sei_version(encoder_control* encoder)
+{
+  int i, length;
+  char buf[1000] = { 0 };
+  char *s = buf;
+  config *cfg = encoder->cfg;
+
+  // uuid_iso_iec_11578
+  static const uint8_t uuid[16] = {
+    0x32, 0xfe, 0x46, 0x6c, 0x98, 0x41, 0x42, 0x69,
+    0xae, 0x35, 0x6a, 0x91, 0x54, 0x9e, 0xf3, 0xf1
+  };
+  memcpy(buf, uuid, 16);
+
+  // user_data_payload_byte
+  s += sprintf(s + 16, "Kvazaar HEVC Encoder v. " VERSION_STRING " - "
+                       "Copyleft 2012-2014 - http://ultravideo.cs.tut.fi/ - options:");
+
+  s += sprintf(s, " %dx%d", cfg->width, cfg->height);
+  s += sprintf(s, " deblock=%d:%d:%d", cfg->deblock_enable,
+               cfg->deblock_beta, cfg->deblock_tc);
+  s += sprintf(s, " sao=%d", cfg->sao_enable);
+  s += sprintf(s, " intra_period=%d", cfg->intra_period);
+  s += sprintf(s, " qp=%d", cfg->qp);
+
+  length = strlen(buf) + 1;
+
+  // payloadType = 5 -> user_data_unregistered
+  WRITE_U(encoder->stream, 5, 8, "last_payload_type_byte");
+
+  // payloadSize
+  for (i = 0; i <= length - 255; i += 255)
+    WRITE_U(encoder->stream, 255, 8, "ff_byte");
+  WRITE_U(encoder->stream, length - i, 8, "last_payload_size_byte");
+
+  for (i = 0; i < length; i++)
+    WRITE_U(encoder->stream, ((uint8_t *)buf)[i], 8, "sei_payload");
+}
+
 void encode_pic_parameter_set(encoder_control* encoder)
 {
 #ifdef _DEBUG

src/encoder.h

@@ -111,6 +111,7 @@ void encode_vid_parameter_set(encoder_control *encoder);
 void encode_slice_data(encoder_control *encoder);
 void encode_slice_header(encoder_control *encoder);
 void encode_access_unit_delimiter(encoder_control* encoder);
+void encode_prefix_sei_version(encoder_control* encoder);
 void encode_coding_tree(encoder_control *encoder, uint16_t x_ctb,
                         uint16_t y_ctb, uint8_t depth);
 void encode_last_significant_xy(encoder_control *encoder, uint8_t lastpos_x,

src/global.h

@@ -22,7 +22,7 @@
 /*
  * \file
  * \brief Header that is included in every other header.
-´*
+ *
  * This file contains global constants that can be referred to from any header
  * or source file. It also contains some helper macros and includes stdint.h
  * so that any file can refer to integer types with exact widths.
@@ -109,7 +109,7 @@ typedef int16_t coefficient;
 //#define SIGN3(x) ((x) > 0) ? +1 : ((x) == 0 ? 0 : -1)
 #define SIGN3(x) (((x) > 0) - ((x) < 0))
 
-#define VERSION_STRING "0.2.3             "
+#define VERSION_STRING "0.2.3"
 #define VERSION 0.2
 
 //#define VERBOSE 1