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h265parser: allow partial matching on range extension profile

Browse source 
Best to return a valid profiles rather than no profile if bitstream uses
a not standard profile.

https://bugzilla.gnome.org/show_bug.cgi?id=793876
This commit is contained in:
Guillaume Desmottes 2018-03-05 14:21:14 +01:00 committed by Nicolas Dufresne
parent 9f25fcdfc9
commit 6dd997541c
2 changed files with 130 additions and 38 deletions
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136
gst-libs/gst/codecparsers/gsth265parser.c
View file

@ -2655,64 +2655,140 @@ typedef struct
guint8 intra_constraint_flag;
guint8 one_picture_only_constraint_flag;
gboolean lower_bit_rate_constraint_flag_set;
/* Tie breaker if more than one profiles are matching */
guint priority;
} FormatRangeExtensionProfile;
typedef struct
{
FormatRangeExtensionProfile *profile;
guint extra_constraints;
} FormatRangeExtensionProfileMatch;
static gint
sort_fre_profile_matches (FormatRangeExtensionProfileMatch * a,
FormatRangeExtensionProfileMatch * b)
{
gint d;
d = a->extra_constraints - b->extra_constraints;
if (d)
return d;
return b->profile->priority - a->profile->priority;
}
static GstH265Profile
get_format_range_extension_profile (GstH265ProfileTierLevel * ptl)
{
/* See Table A.2 for the definition of those formats */
FormatRangeExtensionProfile profiles[] = {
{GST_H265_PROFILE_MONOCHROME, 1, 1, 1, 1, 1, 1, 0, 0, TRUE},
{GST_H265_PROFILE_MONOCHROME_12, 1, 0, 0, 1, 1, 1, 0, 0, TRUE},
{GST_H265_PROFILE_MONOCHROME_16, 0, 0, 0, 1, 1, 1, 0, 0, TRUE},
{GST_H265_PROFILE_MAIN_12, 1, 0, 0, 1, 1, 0, 0, 0, TRUE},
{GST_H265_PROFILE_MAIN_422_10, 1, 1, 0, 1, 0, 0, 0, 0, TRUE},
{GST_H265_PROFILE_MAIN_422_12, 1, 0, 0, 1, 0, 0, 0, 0, TRUE},
{GST_H265_PROFILE_MAIN_444, 1, 1, 1, 0, 0, 0, 0, 0, TRUE},
{GST_H265_PROFILE_MAIN_444_10, 1, 1, 0, 0, 0, 0, 0, 0, TRUE},
{GST_H265_PROFILE_MAIN_444_12, 1, 0, 0, 0, 0, 0, 0, 0, TRUE},
{GST_H265_PROFILE_MAIN_INTRA, 1, 1, 1, 1, 1, 0, 1, 0, FALSE},
{GST_H265_PROFILE_MAIN_10_INTRA, 1, 1, 0, 1, 1, 0, 1, 0, FALSE},
{GST_H265_PROFILE_MAIN_12_INTRA, 1, 0, 0, 1, 1, 0, 1, 0, FALSE},
{GST_H265_PROFILE_MAIN_422_10_INTRA, 1, 1, 0, 1, 0, 0, 1, 0, FALSE},
{GST_H265_PROFILE_MAIN_422_12_INTRA, 1, 0, 0, 1, 0, 0, 1, 0, FALSE},
{GST_H265_PROFILE_MAIN_444_INTRA, 1, 1, 1, 0, 0, 0, 1, 0, FALSE},
{GST_H265_PROFILE_MAIN_444_10_INTRA, 1, 1, 0, 0, 0, 0, 1, 0, FALSE},
{GST_H265_PROFILE_MAIN_444_12_INTRA, 1, 0, 0, 0, 0, 0, 1, 0, FALSE},
{GST_H265_PROFILE_MAIN_444_16_INTRA, 0, 0, 0, 0, 0, 0, 1, 0, FALSE},
{GST_H265_PROFILE_MAIN_444_STILL_PICTURE, 1, 1, 1, 0, 0, 0, 1, 1, FALSE},
{GST_H265_PROFILE_MAIN_444_16_STILL_PICTURE, 0, 0, 0, 0, 0, 0, 1, 1, FALSE},
{GST_H265_PROFILE_MONOCHROME, 1, 1, 1, 1, 1, 1, 0, 0, TRUE, 0},
{GST_H265_PROFILE_MONOCHROME_12, 1, 0, 0, 1, 1, 1, 0, 0, TRUE, 1},
{GST_H265_PROFILE_MONOCHROME_16, 0, 0, 0, 1, 1, 1, 0, 0, TRUE, 2},
{GST_H265_PROFILE_MAIN_12, 1, 0, 0, 1, 1, 0, 0, 0, TRUE, 3},
{GST_H265_PROFILE_MAIN_422_10, 1, 1, 0, 1, 0, 0, 0, 0, TRUE, 4},
{GST_H265_PROFILE_MAIN_422_12, 1, 0, 0, 1, 0, 0, 0, 0, TRUE, 5},
{GST_H265_PROFILE_MAIN_444, 1, 1, 1, 0, 0, 0, 0, 0, TRUE, 6},
{GST_H265_PROFILE_MAIN_444_10, 1, 1, 0, 0, 0, 0, 0, 0, TRUE, 7},
{GST_H265_PROFILE_MAIN_444_12, 1, 0, 0, 0, 0, 0, 0, 0, TRUE, 8},
{GST_H265_PROFILE_MAIN_INTRA, 1, 1, 1, 1, 1, 0, 1, 0, FALSE, 9},
{GST_H265_PROFILE_MAIN_10_INTRA, 1, 1, 0, 1, 1, 0, 1, 0, FALSE, 10},
{GST_H265_PROFILE_MAIN_12_INTRA, 1, 0, 0, 1, 1, 0, 1, 0, FALSE, 11},
{GST_H265_PROFILE_MAIN_422_10_INTRA, 1, 1, 0, 1, 0, 0, 1, 0, FALSE, 12},
{GST_H265_PROFILE_MAIN_422_12_INTRA, 1, 0, 0, 1, 0, 0, 1, 0, FALSE, 13},
{GST_H265_PROFILE_MAIN_444_INTRA, 1, 1, 1, 0, 0, 0, 1, 0, FALSE, 14},
{GST_H265_PROFILE_MAIN_444_10_INTRA, 1, 1, 0, 0, 0, 0, 1, 0, FALSE, 15},
{GST_H265_PROFILE_MAIN_444_12_INTRA, 1, 0, 0, 0, 0, 0, 1, 0, FALSE, 16},
{GST_H265_PROFILE_MAIN_444_16_INTRA, 0, 0, 0, 0, 0, 0, 1, 0, FALSE, 17},
{GST_H265_PROFILE_MAIN_444_STILL_PICTURE, 1, 1, 1, 0, 0, 0, 1, 1, FALSE,
18},
{GST_H265_PROFILE_MAIN_444_16_STILL_PICTURE, 0, 0, 0, 0, 0, 0, 1, 1, FALSE,
19},
};
GstH265Profile result = GST_H265_PROFILE_INVALID;
guint i;
GList *matches = NULL;
for (i = 0; i < G_N_ELEMENTS (profiles); i++) {
FormatRangeExtensionProfile p = profiles[i];
guint extra_constraints = 0;
FormatRangeExtensionProfileMatch *m;
if (p.max_12bit_constraint_flag != ptl->max_12bit_constraint_flag)
/* Filter out all the profiles having constraints not satisified by @ptl.
* Then pick the one having the least extra contraints. This allow us
* to match the closet profile if bitstream contains not standard
* constraints. */
if (p.max_12bit_constraint_flag != ptl->max_12bit_constraint_flag) {
if (p.max_12bit_constraint_flag)
continue;
if (p.max_10bit_constraint_flag != ptl->max_10bit_constraint_flag)
extra_constraints++;
}
if (p.max_10bit_constraint_flag != ptl->max_10bit_constraint_flag) {
if (p.max_10bit_constraint_flag)
continue;
if (p.max_8bit_constraint_flag != ptl->max_8bit_constraint_flag)
extra_constraints++;
}
if (p.max_8bit_constraint_flag != ptl->max_8bit_constraint_flag) {
if (p.max_8bit_constraint_flag)
continue;
if (p.max_422chroma_constraint_flag != ptl->max_422chroma_constraint_flag)
extra_constraints++;
}
if (p.max_422chroma_constraint_flag != ptl->max_422chroma_constraint_flag) {
if (p.max_422chroma_constraint_flag)
continue;
if (p.max_420chroma_constraint_flag != ptl->max_420chroma_constraint_flag)
extra_constraints++;
}
if (p.max_420chroma_constraint_flag != ptl->max_420chroma_constraint_flag) {
if (p.max_420chroma_constraint_flag)
continue;
if (p.max_monochrome_constraint_flag != ptl->max_monochrome_constraint_flag)
extra_constraints++;
}
if (p.max_monochrome_constraint_flag != ptl->max_monochrome_constraint_flag) {
if (p.max_monochrome_constraint_flag)
continue;
if (p.intra_constraint_flag != ptl->intra_constraint_flag)
extra_constraints++;
}
if (p.intra_constraint_flag != ptl->intra_constraint_flag) {
if (p.intra_constraint_flag)
continue;
extra_constraints++;
}
if (p.one_picture_only_constraint_flag !=
ptl->one_picture_only_constraint_flag)
ptl->one_picture_only_constraint_flag) {
if (p.one_picture_only_constraint_flag)
continue;
extra_constraints++;
}
if (p.lower_bit_rate_constraint_flag_set
&& !ptl->lower_bit_rate_constraint_flag)
continue;
return p.profile;
m = g_new0 (FormatRangeExtensionProfileMatch, 1);
m->profile = &profiles[i];
m->extra_constraints = extra_constraints;
matches = g_list_prepend (matches, m);
}
return GST_H265_PROFILE_INVALID;
if (matches) {
FormatRangeExtensionProfileMatch *m;
matches = g_list_sort (matches, (GCompareFunc) sort_fre_profile_matches);
m = matches->data;
result = m->profile->profile;
g_list_free_full (matches, g_free);
}
return result;
}
/**

16
tests/check/libs/h265parser.c
View file

@ -217,6 +217,21 @@ GST_START_TEST (test_h265_format_range_profiles_exact_match)
GST_END_TEST;
GST_START_TEST (test_h265_format_range_profiles_partial_match)
{
/* Test matching compatible profiles from non-standard bitstream */
GstH265ProfileTierLevel ptl;
memset (&ptl, 0, sizeof (ptl));
ptl.profile_idc = 4;
set_format_range_fields (&ptl, 1, 1, 1, 1, 0, 0, 0, 0, 1);
g_assert_cmpuint (gst_h265_profile_tier_level_get_profile (&ptl), ==,
GST_H265_PROFILE_MAIN_444);
}
GST_END_TEST;
static Suite *
h265parser_suite (void)
{
@ -228,6 +243,7 @@ h265parser_suite (void)
tcase_add_test (tc_chain, test_h265_base_profiles);
tcase_add_test (tc_chain, test_h265_base_profiles_compat);
tcase_add_test (tc_chain, test_h265_format_range_profiles_exact_match);
tcase_add_test (tc_chain, test_h265_format_range_profiles_partial_match);
return s;
}