h265parse: Always set profile on src caps

h265parse should provide profile for autoplugging

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4026>

2 files changed, 119 insertions, 0 deletions

diff --git a/subprojects/gst-plugins-bad/gst/videoparsers/gsth265parse.c b/subprojects/gst-plugins-bad/gst/videoparsers/gsth265parse.c
index 356385c37d..ec81c543d0 100644
--- a/subprojects/gst-plugins-bad/gst/videoparsers/gsth265parse.c
+++ b/subprojects/gst-plugins-bad/gst/videoparsers/gsth265parse.c
@@ -2368,6 +2368,60 @@ gst_h265_parse_update_src_caps (GstH265Parse * h265parse, GstCaps * caps)
       GstH265Profile p;
 
       p = gst_h265_get_profile_from_sps (sps);
+      /* gst_h265_get_profile_from_sps() method will determine profile
+       * as defined in spec, with allowing slightly broken profile-tier-level
+       * bits, then it might not be able to cover all cases.
+       * If it's still unknown, do guess again */
+      if (p == GST_H265_PROFILE_INVALID) {
+        GST_WARNING_OBJECT (h265parse, "Unknown profile, guessing");
+        switch (sps->chroma_format_idc) {
+          case 0:
+            if (sps->bit_depth_luma_minus8 == 0) {
+              p = GST_H265_PROFILE_MONOCHROME;
+            } else if (sps->bit_depth_luma_minus8 <= 2) {
+              p = GST_H265_PROFILE_MONOCHROME_10;
+            } else if (sps->bit_depth_luma_minus8 <= 4) {
+              p = GST_H265_PROFILE_MONOCHROME_12;
+            } else {
+              p = GST_H265_PROFILE_MONOCHROME_16;
+            }
+            break;
+          case 1:
+            if (sps->bit_depth_luma_minus8 == 0) {
+              p = GST_H265_PROFILE_MAIN;
+            } else if (sps->bit_depth_luma_minus8 <= 2) {
+              p = GST_H265_PROFILE_MAIN_10;
+            } else if (sps->bit_depth_luma_minus8 <= 4) {
+              p = GST_H265_PROFILE_MAIN_12;
+            } else {
+              p = GST_H265_PROFILE_MAIN_444_16_INTRA;
+            }
+            break;
+          case 2:
+            if (sps->bit_depth_luma_minus8 <= 2) {
+              p = GST_H265_PROFILE_MAIN_422_10;
+            } else if (sps->bit_depth_luma_minus8 <= 4) {
+              p = GST_H265_PROFILE_MAIN_422_12;
+            } else {
+              p = GST_H265_PROFILE_MAIN_444_16_INTRA;
+            }
+            break;
+          case 3:
+            if (sps->bit_depth_luma_minus8 == 0) {
+              p = GST_H265_PROFILE_MAIN_444;
+            } else if (sps->bit_depth_luma_minus8 <= 2) {
+              p = GST_H265_PROFILE_MAIN_444_10;
+            } else if (sps->bit_depth_luma_minus8 <= 4) {
+              p = GST_H265_PROFILE_MAIN_444_12;
+            } else {
+              p = GST_H265_PROFILE_MAIN_444_16_INTRA;
+            }
+            break;
+          default:
+            break;
+        }
+      }
+
       profile = gst_h265_profile_to_string (p);
 
       if (s && gst_structure_has_field (s, "profile")) {
diff --git a/subprojects/gst-plugins-bad/tests/check/elements/h265parse.c b/subprojects/gst-plugins-bad/tests/check/elements/h265parse.c
index 6609544cf2..a2c4f3de80 100644
--- a/subprojects/gst-plugins-bad/tests/check/elements/h265parse.c
+++ b/subprojects/gst-plugins-bad/tests/check/elements/h265parse.c
@@ -332,6 +332,70 @@ GST_START_TEST (test_parse_detect_stream_with_hdr_sei)
 
 GST_END_TEST;
 
+/* 8bits 4:4:4 encoded stream, and profile-level-tier is not spec compliant.
+ * extracted from the file reported at
+ * https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/1009
+ */
+static const guint8 broken_profile_codec_data[] = {
+  0x01, 0x24, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x99, 0xf0, 0x00, 0xfc, 0xff, 0xf8, 0xf8, 0x00, 0x00, 0x0f, 0x03, 0x20,
+  0x00, 0x01, 0x00, 0x18, 0x40, 0x01, 0x0c, 0x01, 0xff, 0xff, 0x24, 0x08,
+  0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03,
+  0x00, 0x99, 0xac, 0x09, 0x21, 0x00, 0x01, 0x00, 0x2c, 0x42, 0x01, 0x01,
+  0x24, 0x08, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00,
+  0x00, 0x03, 0x00, 0x99, 0x90, 0x00, 0x3c, 0x04, 0x00, 0x44, 0x0f, 0x84,
+  0x72, 0xd6, 0x94, 0x84, 0xb2, 0x5c, 0x40, 0x20, 0x00, 0x00, 0x03, 0x00,
+  0x20, 0x00, 0x00, 0x07, 0x81, 0x22, 0x00, 0x01, 0x00, 0x08, 0x44, 0x01,
+  0xc0, 0xf7, 0x18, 0x30, 0x0c, 0xc9
+};
+
+GST_START_TEST (test_parse_fallback_profile)
+{
+  GstHarness *h = gst_harness_new ("h265parse");
+  GstCaps *caps;
+  GstBuffer *codec_data;
+  GstEvent *event;
+
+  codec_data = gst_buffer_new_memdup (broken_profile_codec_data,
+      sizeof (broken_profile_codec_data));
+
+  caps = gst_caps_from_string ("video/x-h265, stream-format=(string)hvc1, "
+      "alignment=(string)au");
+  gst_caps_set_simple (caps, "codec_data", GST_TYPE_BUFFER, codec_data, NULL);
+  gst_buffer_unref (codec_data);
+
+  gst_harness_set_src_caps (h, caps);
+  while ((event = gst_harness_pull_event (h)) != NULL) {
+    GstStructure *s;
+    const gchar *profile;
+
+    if (GST_EVENT_TYPE (event) != GST_EVENT_CAPS) {
+      gst_event_unref (event);
+      continue;
+    }
+
+    gst_event_parse_caps (event, &caps);
+    s = gst_caps_get_structure (caps, 0);
+    profile = gst_structure_get_string (s, "profile");
+
+    /* h265parse must provide profile */
+    fail_unless (profile);
+
+    /* must not be main profile at least.
+     * main-444 is expected but we might update the profile parsing
+     * logic later. At least it should not be main profile
+     */
+    fail_if (g_strcmp0 (profile, "main") == 0);
+
+    gst_event_unref (event);
+    break;
+  }
+
+  gst_harness_teardown (h);
+}
+
+GST_END_TEST;
+
 static Suite *
 h265parse_suite (void)
 {
@@ -344,6 +408,7 @@ h265parse_suite (void)
   tcase_add_test (tc_chain, test_parse_split);
   tcase_add_test (tc_chain, test_parse_detect_stream);
   tcase_add_test (tc_chain, test_parse_detect_stream_with_hdr_sei);
+  tcase_add_test (tc_chain, test_parse_fallback_profile);
 
   return s;
 }