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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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codec-utils: Add parsing H265 range extensions profiles
Add support all h265 profiles defined by ITU-T H.264 (02/2018) revision
This commit is contained in:
Seungha Yang
Nicolas Dufresne
parent
7883663e26
commit
3f0e1f937d
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@ -799,6 +799,113 @@ gst_codec_utils_h264_caps_set_level_and_profile (GstCaps * caps,
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return (level != NULL && profile != NULL);
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}
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/* forked from gsth265parse.c */
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typedef struct
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{
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const gchar *profile;
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guint8 profile_idc;
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guint8 max_14bit_constraint_flag;
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guint8 max_12bit_constraint_flag;
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guint8 max_10bit_constraint_flag;
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guint8 max_8bit_constraint_flag;
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guint8 max_422chroma_constraint_flag;
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guint8 max_420chroma_constraint_flag;
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guint8 max_monochrome_constraint_flag;
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guint8 intra_constraint_flag;
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guint8 one_picture_only_constraint_flag;
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guint8 lower_bit_rate_constraint_flag;
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/* Tie breaker if more than one profiles are matching */
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guint priority;
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} GstH265FormatRangeExtensionProfile;
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typedef struct
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{
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const GstH265FormatRangeExtensionProfile *profile;
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guint extra_constraints;
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} FormatRangeExtensionProfileMatch;
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static gint
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sort_fre_profile_matches (FormatRangeExtensionProfileMatch * a,
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FormatRangeExtensionProfileMatch * b)
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{
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gint d;
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d = a->extra_constraints - b->extra_constraints;
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if (d)
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return d;
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return b->profile->priority - a->profile->priority;
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}
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static const GstH265FormatRangeExtensionProfile h265_ext_profiles[] = {
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/* FIXME 2.0: Consider ':' seperated subsampling notation for consistency
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* https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/merge_requests/23
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*/
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/* *INDENT-OFF* */
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/* Rec. ITU-T H.265 Table A.2 format range extensions profiles */
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{"monochrome", 4, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 0},
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{"monochrome-10", 4, 0, 1, 1, 0, 1, 1, 1, 0, 0, 1, 1},
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{"monochrome-12", 4, 0, 1, 0, 0, 1, 1, 1, 0, 0, 1, 2},
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{"monochrome-16", 4, 0, 0, 0, 0, 1, 1, 1, 0, 0, 1, 3},
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{"main-12", 4, 0, 1, 0, 0, 1, 1, 0, 0, 0, 1, 4},
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{"main-422-10", 4, 0, 1, 1, 0, 1, 0, 0, 0, 0, 1, 5},
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{"main-422-12", 4, 0, 1, 0, 0, 1, 0, 0, 0, 0, 1, 6},
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{"main-444", 4, 0, 1, 1, 1, 0, 0, 0, 0, 0, 1, 7},
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{"main-444-10", 4, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 8},
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{"main-444-12", 4, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 9},
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{"main-intra", 4, 0, 1, 1, 1, 1, 1, 0, 1, 0, 0, 10},
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{"main-10-intra", 4, 0, 1, 1, 0, 1, 1, 0, 1, 0, 0, 11},
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{"main-12-intra", 4, 0, 1, 0, 0, 1, 1, 0, 1, 0, 0, 12},
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{"main-422-10-intra", 4, 0, 1, 1, 0, 1, 0, 0, 1, 0, 0, 13},
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{"main-422-12-intra", 4, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 14},
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{"main-444-intra", 4, 0, 1, 1, 1, 0, 0, 0, 1, 0, 0, 15},
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{"main-444-10-intra", 4, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 16},
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{"main-444-12-intra", 4, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 17},
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{"main-444-16-intra", 4, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 18},
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{"main-444-still-picture", 4, 0, 1, 1, 1, 0, 0, 0, 1, 1, 0, 19},
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{"main-444-16-still-picture", 4, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 20},
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/* Rec. ITU-T H.265 Table A.3 high throughput profiles */
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{"high-throughput-444", 5, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 21},
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{"high-throughput-444-10", 5, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 22},
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{"high-throughput-444-14", 5, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 23},
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{"high-throughput-444-16-intra", 5, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 24},
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/* Rec. ITU-T H.265 Table A.5 screen content coding extensions profiles */
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{"screen-extended-main", 9, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 25},
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{"screen-extended-main-10", 9, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, 26},
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{"screen-extended-main-444", 9, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 27},
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{"screen-extended-main-444-10", 9, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 28},
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/* identical to screen-extended-main-444 */
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{"screen-extended-high-throughput-444",
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9, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 29},
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/* identical to screen-extended-main-444-10 */
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{"screen-extended-high-throughput-444-10",
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9, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 30},
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{"screen-extended-high-throughput-444-14",
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9, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 31},
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/* Rec. ITU-T H.265 G.11.1 Multiview Main profile */
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{"multiview-main", 6, 0, 1, 1, 1, 1, 1, 0, 0, 0, 1, 32},
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/* Rec. ITU-T H.265 H.11.1 */
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{"scalable-main", 7, 0, 1, 1, 1, 1, 1, 0, 0, 0, 1, 33},
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{"scalable-main-10", 7, 0, 1, 1, 0, 1, 1, 0, 0, 0, 1, 34},
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/* Rec. ITU-T H.265 Table H.4 scalable range extensions profiles */
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{"scalable-monochrome", 10, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 35},
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{"scalable-monochrome-12", 10, 1, 1, 0, 0, 1, 1, 1, 0, 0, 1, 36},
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{"scalable-monochrome-16", 10, 0, 0, 0, 0, 1, 1, 1, 0, 0, 1, 37},
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{"scalable-main-444", 10, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 38},
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/* Rec. ITU-T H.265 I.11.1 3D Main profile */
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{"3d-main", 8, 0, 1, 1, 1, 1, 1, 0, 0, 0, 1, 39},
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/* *INDENT-ON* */
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};
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/**
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* gst_codec_utils_h265_get_profile:
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* @profile_tier_level: (array length=len): Pointer to the profile_tier_level
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@ -819,7 +926,7 @@ gst_codec_utils_h264_caps_set_level_and_profile (GstCaps * caps,
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* * Bit 41 - general_interlaced_source_flag
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* * Bit 42 - general_non_packed_constraint_flag
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* * Bit 43 - general_frame_only_constraint_flag
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* * Bit 44:87 - general_reserved_zero_44bits
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* * Bit 44:87 - See below
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* * Bit 88:95 - general_level_idc
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*
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* Returns: The profile as a const string, or %NULL if there is an error.
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@ -831,6 +938,10 @@ gst_codec_utils_h265_get_profile (const guint8 * profile_tier_level, guint len)
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{
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const gchar *profile = NULL;
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gint profile_idc;
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guint i;
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guint8 profile_compatibility_flags[32] = { 0, };
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GList *cand = NULL;
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GstBitReader br = GST_BIT_READER_INIT (profile_tier_level, len);
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g_return_val_if_fail (profile_tier_level != NULL, NULL);
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@ -847,9 +958,208 @@ gst_codec_utils_h265_get_profile (const guint8 * profile_tier_level, guint len)
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profile = "main-10";
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else if (profile_idc == 3)
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profile = "main-still-picture";
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else
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if (len > 4) {
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if (!gst_bit_reader_skip (&br, 8))
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return NULL;
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for (i = 0; i < 32; i++) {
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if (!gst_bit_reader_get_bits_uint8 (&br, &profile_compatibility_flags[i],
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1))
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return NULL;
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}
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}
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if (!profile) {
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if (profile_compatibility_flags[1])
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profile = "main";
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else if (profile_compatibility_flags[2])
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profile = "main-10";
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else if (profile_compatibility_flags[3])
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profile = "main-still-picture";
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}
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if (profile)
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return profile;
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if (profile_idc >= 4 && profile_idc <= 10 && len >= 11) {
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GstH265FormatRangeExtensionProfile ext_profile = { 0, };
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/*
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* Bit 40 - general_progressive_source_flag
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* Bit 41 - general_interlaced_source_flag
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* Bit 42 - general_non_packed_constraint_flag
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* Bit 43 - general_frame_only_constraint_flag
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*/
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if (!gst_bit_reader_skip (&br, 4))
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return NULL;
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/* Range extensions
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* profile_idc
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* 4 : Format range extensions profiles
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* 5 : High throughput profiles
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* 6 : Multiview main profile
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* 7 : Scalable main profiles
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* 8 : 3D Main profile
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* 9 : Screen content coding extensions profiles
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* 10 : Scalable format range extensions profiles
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*
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* Bit 44 - general_max_12bit_constraint_flag
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* Bit 45 - general_max_10bit_constraint_flag
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* Bit 46 - general_max_8bit_constraint_flag
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* Bit 47 - general_max_422chroma_constraint_flag
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* Bit 48 - general_max_420chroma_constraint_flag
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* Bit 49 - general_max_monochrome_constraint_flag
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* Bit 50 - general_intra_constraint_flag
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* Bit 51 - general_one_picture_only_constraint_flag
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* Bit 52 - general_lower_bit_rate_constraint_flag
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*/
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if (!gst_bit_reader_get_bits_uint8 (&br,
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&ext_profile.max_12bit_constraint_flag, 1))
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return NULL;
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if (!gst_bit_reader_get_bits_uint8 (&br,
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&ext_profile.max_10bit_constraint_flag, 1))
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return NULL;
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if (!gst_bit_reader_get_bits_uint8 (&br,
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&ext_profile.max_8bit_constraint_flag, 1))
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return NULL;
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if (!gst_bit_reader_get_bits_uint8 (&br,
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&ext_profile.max_422chroma_constraint_flag, 1))
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return NULL;
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if (!gst_bit_reader_get_bits_uint8 (&br,
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&ext_profile.max_420chroma_constraint_flag, 1))
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return NULL;
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if (!gst_bit_reader_get_bits_uint8 (&br,
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&ext_profile.max_monochrome_constraint_flag, 1))
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return NULL;
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if (!gst_bit_reader_get_bits_uint8 (&br,
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&ext_profile.intra_constraint_flag, 1))
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return NULL;
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if (!gst_bit_reader_get_bits_uint8 (&br,
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&ext_profile.one_picture_only_constraint_flag, 1))
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return NULL;
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if (!gst_bit_reader_get_bits_uint8 (&br,
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&ext_profile.lower_bit_rate_constraint_flag, 1))
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return NULL;
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if (profile_idc == 5 || profile_idc == 9 || profile_idc == 10 ||
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profile_compatibility_flags[5] || profile_compatibility_flags[9] ||
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profile_compatibility_flags[10]) {
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/* Bit 53 - general_max_14bit_constraint_flag */
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if (!gst_bit_reader_get_bits_uint8 (&br,
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&ext_profile.max_14bit_constraint_flag, 1))
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return NULL;
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}
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ext_profile.profile_idc = profile_idc;
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for (i = 0; i < G_N_ELEMENTS (h265_ext_profiles); i++) {
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GstH265FormatRangeExtensionProfile p = h265_ext_profiles[i];
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guint extra_constraints = 0;
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FormatRangeExtensionProfileMatch *m;
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/* Filter out all the profiles having constraints not satisified by
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* @ext_profile.
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* Then pick the one having the least extra contraints. This allow us
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* to match the closet profile if bitstream contains not standard
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* constraints. */
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if (p.max_14bit_constraint_flag != ext_profile.max_14bit_constraint_flag) {
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if (p.max_14bit_constraint_flag)
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continue;
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extra_constraints++;
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}
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if (p.max_12bit_constraint_flag != ext_profile.max_12bit_constraint_flag) {
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if (p.max_12bit_constraint_flag)
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continue;
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extra_constraints++;
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}
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if (p.max_10bit_constraint_flag != ext_profile.max_10bit_constraint_flag) {
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if (p.max_10bit_constraint_flag)
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continue;
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extra_constraints++;
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}
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if (p.max_8bit_constraint_flag != ext_profile.max_8bit_constraint_flag) {
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if (p.max_8bit_constraint_flag)
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continue;
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extra_constraints++;
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}
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if (p.max_422chroma_constraint_flag !=
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ext_profile.max_422chroma_constraint_flag) {
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if (p.max_422chroma_constraint_flag)
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continue;
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extra_constraints++;
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}
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if (p.max_420chroma_constraint_flag !=
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ext_profile.max_420chroma_constraint_flag) {
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if (p.max_420chroma_constraint_flag)
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continue;
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extra_constraints++;
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}
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if (p.max_monochrome_constraint_flag !=
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ext_profile.max_monochrome_constraint_flag) {
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if (p.max_monochrome_constraint_flag)
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continue;
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extra_constraints++;
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}
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if (p.intra_constraint_flag != ext_profile.intra_constraint_flag) {
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if (p.intra_constraint_flag)
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continue;
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extra_constraints++;
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}
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if (p.one_picture_only_constraint_flag !=
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ext_profile.one_picture_only_constraint_flag) {
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if (p.one_picture_only_constraint_flag)
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continue;
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extra_constraints++;
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}
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if (p.lower_bit_rate_constraint_flag
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&& !ext_profile.lower_bit_rate_constraint_flag)
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continue;
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/* choose one if profile index and all flags are matched */
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if (extra_constraints == 0 &&
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(p.profile_idc == ext_profile.profile_idc
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|| profile_compatibility_flags[p.profile_idc])) {
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profile = p.profile;
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break;
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}
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m = g_new0 (FormatRangeExtensionProfileMatch, 1);
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m->profile = &h265_ext_profiles[i];
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m->extra_constraints = extra_constraints;
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cand = g_list_prepend (cand, m);
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}
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if (!profile && cand) {
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FormatRangeExtensionProfileMatch *m;
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cand = g_list_sort (cand, (GCompareFunc) sort_fre_profile_matches);
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m = cand->data;
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profile = m->profile->profile;
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}
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} else
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profile = NULL;
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if (cand)
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g_list_free_full (cand, g_free);
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return profile;
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}
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