return ret;
}
+static gboolean
+hevc_caps_get_mime_codec (GstCaps * caps, gchar ** mime_codec)
+{
+ GstStructure *caps_st = NULL;
+ const GValue *codec_data_value = NULL;
+ GstBuffer *codec_data = NULL;
+ GstMapInfo map;
+ gboolean ret = FALSE;
+ const gchar *stream_format;
+ guint8 *data = NULL;
+ gsize size;
+ guint16 profile_space;
+ guint8 tier_flag;
+ guint16 profile_idc;
+ guint32 compat_flags;
+ guchar constraint_indicator_flags[6];
+ guint8 level_idc;
+ guint32 compat_flag_parameter = 0;
+ GString *codec_string;
+ const guint8 *profile_tier_level;
+ unsigned last_flag_index;
+
+ caps_st = gst_caps_get_structure (caps, 0);
+ codec_data_value = gst_structure_get_value (caps_st, "codec_data");
+ stream_format = gst_structure_get_string (caps_st, "stream-format");
+ if (!codec_data_value) {
+ GST_DEBUG ("video/x-h265 caps did not have codec_data set, cannot parse");
+ return FALSE;
+ } else if (!stream_format) {
+ GST_DEBUG
+ ("video/x-h265 caps did not have stream-format set, cannot parse");
+ return FALSE;
+ }
+
+ codec_data = gst_value_get_buffer (codec_data_value);
+ if (!gst_buffer_map (codec_data, &map, GST_MAP_READ)) {
+ return FALSE;
+ }
+ data = map.data;
+ size = map.size;
+
+ /* HEVCDecoderConfigurationRecord is at a minimum 23 bytes long */
+ if (size < 23) {
+ GST_DEBUG ("Incomplete HEVCDecoderConfigurationRecord");
+ goto done;
+ }
+
+ if (!g_str_equal (stream_format, "hev1")
+ && !g_str_equal (stream_format, "hvc1")) {
+ GST_DEBUG ("Unknown stream-format %s", stream_format);
+ goto done;
+ }
+
+ profile_tier_level = data + 1;
+ profile_space = (profile_tier_level[0] & 0x11) >> 6;
+ tier_flag = (profile_tier_level[0] & 0x001) >> 5;
+ profile_idc = (profile_tier_level[0] & 0x1f);
+
+ compat_flags = GST_READ_UINT32_BE (data + 2);
+ for (unsigned i = 0; i < 6; ++i)
+ constraint_indicator_flags[i] = GST_READ_UINT8 (data + 6 + i);
+
+ level_idc = data[12];
+
+ /* The 32 bits of the compat_flags, but in reverse bit order */
+ compat_flags =
+ ((compat_flags & 0xaaaaaaaa) >> 1) | ((compat_flags & 0x55555555) << 1);
+ compat_flags =
+ ((compat_flags & 0xcccccccc) >> 2) | ((compat_flags & 0x33333333) << 2);
+ compat_flags =
+ ((compat_flags & 0xf0f0f0f0) >> 4) | ((compat_flags & 0x0f0f0f0f) << 4);
+ compat_flags =
+ ((compat_flags & 0xff00ff00) >> 8) | ((compat_flags & 0x00ff00ff) << 8);
+ compat_flag_parameter = (compat_flags >> 16) | (compat_flags << 16);
+
+ codec_string = g_string_new (stream_format);
+ codec_string = g_string_append_c (codec_string, '.');
+ if (profile_space)
+ codec_string = g_string_append_c (codec_string, 'A' + profile_space - 1);
+ g_string_append_printf (codec_string, "%" G_GUINT16_FORMAT ".%X.%c%d",
+ profile_idc, compat_flag_parameter, tier_flag ? 'H' : 'L', level_idc);
+
+ /* Each of the 6 bytes of the constraint flags, starting from the byte containing the
+ * progressive_source_flag, each encoded as a hexadecimal number, and the encoding
+ * of each byte separated by a period; trailing bytes that are zero may be omitted.
+ */
+ last_flag_index = 5;
+ while ((int) (constraint_indicator_flags[last_flag_index]) == 0)
+ --last_flag_index;
+ for (unsigned i = 0; i <= last_flag_index; ++i) {
+ g_string_append_printf (codec_string, ".%02X",
+ constraint_indicator_flags[i]);
+ }
+
+ *mime_codec = g_string_free (codec_string, FALSE);
+
+ ret = TRUE;
+
+done:
+ gst_buffer_unmap (codec_data, &map);
+ return ret;
+}
+
/**
* gst_codec_utils_caps_get_mime_codec:
* @caps: A #GstCaps to convert to mime codec
mime_codec = g_strdup_printf ("avc1.%02X%02X%02X", profile, flags, level);
}
} else if (g_strcmp0 (media_type, "video/x-h265") == 0) {
- /* TODO: this simple "hev1" is not complete and should contain more info
- * similar to how avc1 does.
- * However, as of writing there are no browsers that support h265 and the
- * format of how to describe h265 codec info is badly documented.
- * Examples exist online, but no public documentation seem to exist,
- * however the paywalled ISO/IEC 14496-15 has it. */
- mime_codec = g_strdup ("hev1");
+ if (!hevc_caps_get_mime_codec (caps, &mime_codec)) {
+ GST_DEBUG ("h265 caps parsing failed");
+ mime_codec = g_strdup ("hev1");
+ }
} else if (g_strcmp0 (media_type, "video/x-av1") == 0) {
/* TODO: Some browsers won't play the video unless more codec information is
* available in the mime codec for av1. This is documented in
GST_END_TEST;
+static const guint8 h265_sample_codec_data[] = {
+ 0x01, 0x01, 0x60, 0x00, 0x00, 0x00, 0xb0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x5d,
+ 0xf0, 0x00, 0xfc,
+ 0xfd, 0xf8, 0xf8, 0x00, 0x00, 0x0f, 0x03, 0x20, 0x00, 0x01, 0x00, 0x18, 0x40,
+ 0x01, 0x0c, 0x01,
+ 0xff, 0xff, 0x01, 0x60, 0x00, 0x00, 0x03, 0x00, 0xb0, 0x00, 0x00, 0x03, 0x00,
+ 0x00, 0x03, 0x00,
+ 0x5d, 0x15, 0xc0, 0x90, 0x21, 0x00, 0x01, 0x00, 0x22, 0x42, 0x01, 0x01, 0x01,
+ 0x60, 0x00, 0x00,
+ 0x03, 0x00, 0xb0, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x5d, 0xa0, 0x0a,
+ 0x08, 0x0f, 0x16,
+ 0x20, 0x57, 0xb9, 0x16, 0x55, 0x35, 0x01, 0x01, 0x01, 0x00, 0x80, 0x22, 0x00,
+ 0x01, 0x00, 0x07,
+ 0x44, 0x01, 0xc0, 0x2c, 0xbc, 0x14, 0xc9
+};
+
GST_START_TEST (test_pb_utils_caps_get_mime_codec)
{
GstCaps *caps = NULL;
gst_buffer_unref (buffer);
/* h265 */
- caps = gst_caps_new_empty_simple ("video/x-h265");
+ buffer =
+ gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY,
+ (gpointer) h265_sample_codec_data, sizeof (h265_sample_codec_data), 0,
+ sizeof (h265_sample_codec_data), NULL, NULL);
+ caps =
+ gst_caps_new_simple ("video/x-h265", "stream-format", G_TYPE_STRING,
+ "hvc1", "codec_data", GST_TYPE_BUFFER, buffer, NULL);
mime_codec = gst_codec_utils_caps_get_mime_codec (caps);
- fail_unless_equals_string (mime_codec, "hev1");
+ fail_unless_equals_string (mime_codec, "hvc1.1.6.L93.B0");
g_free (mime_codec);
gst_caps_unref (caps);
+ gst_buffer_unref (buffer);
/* av1 */
caps = gst_caps_new_empty_simple ("video/x-av1");