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x264enc: Consider subset relations of profiles when setting srcpad caps

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constrained-baseline is a subset of baseline, is a subset of main,
is a subset of high profile.

https://bugzilla.gnome.org/show_bug.cgi?id=705425
This commit is contained in:
Sebastian Dröge 2013-08-21 18:32:17 +02:00
parent e0ae81ebac
commit aab5534573
1 changed files with 36 additions and 1 deletions
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37
ext/x264/gstx264enc.c
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@ -1405,7 +1405,11 @@ gst_x264_enc_set_profile_and_level (GstX264Enc * encoder, GstCaps * caps)
int header_return;
gint sps_ni = 0;
guint8 *sps;
GstStructure *s;
const gchar *profile;
GstCaps *allowed_caps;
GstStructure *s2;
const gchar *allowed_profile;
header_return = x264_encoder_headers (encoder->x264enc, &nal, &i_nal);
if (header_return < 0) {
@ -1424,6 +1428,37 @@ gst_x264_enc_set_profile_and_level (GstX264Enc * encoder, GstCaps * caps)
gst_codec_utils_h264_caps_set_level_and_profile (caps, sps, 3);
/* Constrained baseline is a strict subset of baseline. If downstream
* wanted baseline and we produced constrained baseline, we can just
* set the profile to baseline in the caps to make negotiation happy.
* Same goes for baseline as subset of main profile and main as a subset
* of high profile.
*/
s = gst_caps_get_structure (caps, 0);
profile = gst_structure_get_string (s, "profile");
allowed_caps = gst_pad_get_allowed_caps (GST_VIDEO_ENCODER_SRC_PAD (encoder));
if (!gst_caps_can_intersect (allowed_caps, caps)) {
allowed_caps = gst_caps_make_writable (allowed_caps);
allowed_caps = gst_caps_truncate (allowed_caps);
s2 = gst_caps_get_structure (allowed_caps, 0);
gst_structure_fixate_field_string (s2, "profile", profile);
allowed_profile = gst_structure_get_string (s2, "profile");
if (!strcmp (allowed_profile, "high")) {
if (!strcmp (profile, "constrained-baseline")
|| !strcmp (profile, "baseline") || !strcmp (profile, "main"))
gst_structure_set (s, "profile", G_TYPE_STRING, "high", NULL);
} else if (!strcmp (allowed_profile, "main")) {
if (!strcmp (profile, "constrained-baseline")
|| !strcmp (profile, "baseline"))
gst_structure_set (s, "profile", G_TYPE_STRING, "main", NULL);
} else if (!strcmp (allowed_profile, "baseline")) {
if (!strcmp (profile, "constrained-baseline"))
gst_structure_set (s, "profile", G_TYPE_STRING, "baseline", NULL);
}
}
gst_caps_unref (allowed_caps);
return TRUE;
}