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h265parse: Fix profile, tier and level setting in caps

Browse source 
Don't use the apis in codec-utils to extract the profile,tier and level
syntax elements since it is wrong if there are emulation prevention
bytes existing in the byte-stream data.

https://bugzilla.gnome.org/show_bug.cgi?id=747613
This commit is contained in:
Sreerenj Balachandran 2015-04-30 18:36:35 +03:00 committed by Sebastian Dröge
parent e6e0702821
commit a70c4f319d
1 changed files with 87 additions and 8 deletions
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95
gst/videoparsers/gsth265parse.c
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@ -1198,6 +1198,81 @@ gst_h265_parse_get_par (GstH265Parse * h265parse, gint * num, gint * den)
}
}
static const gchar *
digit_to_string (guint digit)
{
static const char itoa[][2] = {
"0", "1", "2", "3", "4", "5", "6", "7", "8", "9"
};
if (G_LIKELY (digit < 10))
return itoa[digit];
else
return NULL;
}
static const gchar *
get_profile_string (guint8 profile_idc)
{
const gchar *profile = NULL;
if (profile_idc == 1)
profile = "main";
else if (profile_idc == 2)
profile = "main-10";
else if (profile_idc == 3)
profile = "main-still-picture";
return profile;
}
static const gchar *
get_tier_string (guint8 tier_flag)
{
const gchar *tier = NULL;
if (tier_flag)
tier = "high";
else
tier = "main";
return tier;
}
static const gchar *
get_level_string (guint8 level_idc)
{
if (level_idc % 30 == 0)
return digit_to_string (level_idc / 30);
else {
switch (level_idc) {
case 63:
return "2.1";
break;
case 93:
return "3.1";
break;
case 123:
return "4.1";
break;
case 153:
return "5.1";
break;
case 156:
return "5.2";
break;
case 183:
return "6.1";
break;
case 186:
return "6.2";
break;
default:
return NULL;
}
}
}
static void
gst_h265_parse_update_src_caps (GstH265Parse * h265parse, GstCaps * caps)
{
@ -1342,15 +1417,19 @@ gst_h265_parse_update_src_caps (GstH265Parse * h265parse, GstCaps * caps)
/* set profile and level in caps */
if (sps) {
GstMapInfo map;
GstBuffer *sps_buf = h265parse->sps_nals[sps->id];
const gchar *profile, *tier, *level;
if (sps_buf) {
gst_buffer_map (sps_buf, &map, GST_MAP_READ);
gst_codec_utils_h265_caps_set_level_tier_and_profile (caps,
map.data + 1, map.size - 1);
gst_buffer_unmap (sps_buf, &map);
}
profile = get_profile_string (sps->profile_tier_level.profile_idc);
if (profile != NULL)
gst_caps_set_simple (caps, "profile", G_TYPE_STRING, profile, NULL);
tier = get_tier_string (sps->profile_tier_level.tier_flag);
if (tier != NULL)
gst_caps_set_simple (caps, "tier", G_TYPE_STRING, tier, NULL);
level = get_level_string (sps->profile_tier_level.level_idc);
if (level != NULL)
gst_caps_set_simple (caps, "level", G_TYPE_STRING, level, NULL);
}
src_caps = gst_pad_get_current_caps (GST_BASE_PARSE_SRC_PAD (h265parse));