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pbutils: add correct mime mapping for vp9

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Based on https://www.webmproject.org/vp9/mp4/#codecs-parameter-string

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3260>
This commit is contained in:
Matthew Waters 2022-10-26 13:42:59 +11:00 committed by GStreamer Marge Bot
parent e2081ce31e
commit 1c835695a3
1 changed files with 83 additions and 4 deletions
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87
subprojects/gst-plugins-base/gst-libs/gst/pbutils/codec-utils.c
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@ -2464,6 +2464,88 @@ done:
return ret;
}
/* https://www.webmproject.org/vp9/mp4/#codecs-parameter-string */
static char *
vp9_caps_get_mime_codec (GstCaps * caps)
{
GstStructure *caps_st;
const char *profile_str, *chroma_format_str, *colorimetry_str;
guint bitdepth_luma, bitdepth_chroma;
guint8 profile = -1, chroma_format = -1, level = -1;
gboolean video_full_range;
GstVideoColorimetry cinfo = { 0, };
GString *codec_string;
caps_st = gst_caps_get_structure (caps, 0);
codec_string = g_string_new ("vp09");
profile_str = gst_structure_get_string (caps_st, "profile");
if (g_strcmp0 (profile_str, "0") == 0) {
profile = 0;
} else if (g_strcmp0 (profile_str, "1") == 0) {
profile = 1;
} else if (g_strcmp0 (profile_str, "2") == 0) {
profile = 2;
} else if (g_strcmp0 (profile_str, "3") == 0) {
profile = 3;
} else {
goto done;
}
/* XXX: hardcoded level */
level = 10;
gst_structure_get (caps_st, "bit-depth-luma", G_TYPE_UINT,
&bitdepth_luma, "bit-depth-chroma", G_TYPE_UINT, &bitdepth_chroma, NULL);
if (bitdepth_luma == 0)
goto done;
if (bitdepth_luma != bitdepth_chroma)
goto done;
/* mandatory elements */
g_string_append_printf (codec_string, ".%02u.%02u.%02u", profile, level,
bitdepth_luma);
colorimetry_str = gst_structure_get_string (caps_st, "colorimetry");
if (!colorimetry_str)
goto done;
if (!gst_video_colorimetry_from_string (&cinfo, colorimetry_str))
goto done;
video_full_range = cinfo.range == GST_VIDEO_COLOR_RANGE_0_255;
chroma_format_str = gst_structure_get_string (caps_st, "chroma-format");
if (g_strcmp0 (chroma_format_str, "4:2:0") == 0) {
const char *chroma_site_str;
GstVideoChromaSite chroma_site;
chroma_site_str = gst_structure_get_string (caps_st, "chroma-site");
chroma_site = gst_video_chroma_site_from_string (chroma_site_str);
if (chroma_site == GST_VIDEO_CHROMA_SITE_V_COSITED) {
chroma_format = 0;
} else if (chroma_site == GST_VIDEO_CHROMA_SITE_COSITED) {
chroma_format = 1;
} else {
chroma_format = 1;
}
} else if (g_strcmp0 (chroma_format_str, "4:2:2") == 0) {
chroma_format = 2;
} else if (g_strcmp0 (chroma_format_str, "4:4:4") == 0) {
chroma_format = 3;
} else {
goto done;
}
/* optional but all or nothing */
g_string_append_printf (codec_string, ".%02u.%02u.%02u.%02u.%02u",
chroma_format, gst_video_color_primaries_to_iso (cinfo.primaries),
gst_video_transfer_function_to_iso (cinfo.transfer),
gst_video_color_matrix_to_iso (cinfo.matrix), video_full_range);
done:
return g_string_free (codec_string, FALSE);
}
/**
* gst_codec_utils_caps_get_mime_codec:
* @caps: A #GstCaps to convert to mime codec
@ -2530,10 +2612,7 @@ gst_codec_utils_caps_get_mime_codec (GstCaps * caps)
* available in the mime codec for vp8. */
mime_codec = g_strdup ("vp08");
} else if (g_strcmp0 (media_type, "video/x-vp9") == 0) {
/* TODO: most browsers won't play the video unless more codec information is
* available in the mime codec for vp9. This is documented in
* https://www.webmproject.org/vp9/mp4/ */
mime_codec = g_strdup ("vp09");
mime_codec = vp9_caps_get_mime_codec (caps);
} else if (g_strcmp0 (media_type, "image/jpeg") == 0) {
mime_codec = g_strdup ("mjpg");
} else if (g_strcmp0 (media_type, "audio/mpeg") == 0) {