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qtmux: Always write colr atom with the colorimetry information

Browse source 
https://bugzilla.gnome.org/show_bug.cgi?id=772181
This commit is contained in:
Sebastian Dröge 2016-09-29 21:56:18 +03:00
parent 0584a71123
commit 53e436883a
4 changed files with 38 additions and 25 deletions
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28
gst/isomp4/atoms.c
View file

@ -3948,7 +3948,7 @@ build_fiel_extension (GstVideoInterlaceMode mode, GstVideoFieldOrder order)
}
AtomInfo *
build_colr_extension (GstVideoColorimetry colorimetry)
build_colr_extension (const GstVideoColorimetry * colorimetry, gboolean is_mp4)
{
AtomData *atom_data = atom_data_new (FOURCC_colr);
guint8 *data;
@ -3956,7 +3956,7 @@ build_colr_extension (GstVideoColorimetry colorimetry)
guint16 transfer_function;
guint16 matrix;
switch (colorimetry.primaries) {
switch (colorimetry->primaries) {
case GST_VIDEO_COLOR_PRIMARIES_BT709:
primaries = 1;
break;
@ -3967,13 +3967,16 @@ build_colr_extension (GstVideoColorimetry colorimetry)
case GST_VIDEO_COLOR_PRIMARIES_SMPTE240M:
primaries = 6;
break;
case GST_VIDEO_COLOR_PRIMARIES_BT2020:
primaries = 9;
break;
case GST_VIDEO_COLOR_PRIMARIES_UNKNOWN:
default:
primaries = 2;
break;
}
switch (colorimetry.transfer) {
switch (colorimetry->transfer) {
case GST_VIDEO_TRANSFER_BT709:
transfer_function = 1;
break;
@ -3986,7 +3989,7 @@ build_colr_extension (GstVideoColorimetry colorimetry)
break;
}
switch (colorimetry.matrix) {
switch (colorimetry->matrix) {
case GST_VIDEO_COLOR_MATRIX_BT709:
matrix = 1;
break;
@ -3996,22 +3999,33 @@ build_colr_extension (GstVideoColorimetry colorimetry)
case GST_VIDEO_COLOR_MATRIX_SMPTE240M:
matrix = 7;
break;
case GST_VIDEO_COLOR_MATRIX_BT2020:
matrix = 9;
break;
case GST_VIDEO_COLOR_MATRIX_UNKNOWN:
default:
matrix = 2;
break;
}
atom_data_alloc_mem (atom_data, 10);
atom_data_alloc_mem (atom_data, 10 + (is_mp4 ? 1 : 0));
data = atom_data->data;
/* colour specification box */
GST_WRITE_UINT32_LE (data, FOURCC_nclc);
if (is_mp4)
GST_WRITE_UINT32_LE (data, FOURCC_nclx);
else
GST_WRITE_UINT32_LE (data, FOURCC_nclc);
GST_WRITE_UINT16_BE (data + 4, primaries);
GST_WRITE_UINT16_BE (data + 6, transfer_function); /* transfer function */
GST_WRITE_UINT16_BE (data + 6, transfer_function);
GST_WRITE_UINT16_BE (data + 8, matrix);
if (is_mp4) {
GST_WRITE_UINT8 (data + 10,
colorimetry->range == GST_VIDEO_COLOR_RANGE_0_255 ? 0x80 : 0x00);
}
return build_atom_info_wrapper ((Atom *) atom_data, atom_data_copy_data,
atom_data_free);
}

2
gst/isomp4/atoms.h
View file

@ -1044,7 +1044,7 @@ AtomInfo * build_jp2h_extension (gint width, gint height, const gchar *
AtomInfo * build_jp2x_extension (const GstBuffer * prefix);
AtomInfo * build_fiel_extension (GstVideoInterlaceMode mode, GstVideoFieldOrder order);
AtomInfo * build_colr_extension (GstVideoColorimetry colorimetry);
AtomInfo * build_colr_extension (const GstVideoColorimetry *colorimetry, gboolean is_mp4);
AtomInfo * build_ac3_extension (guint8 fscod, guint8 bsid,
guint8 bsmod, guint8 acmod,
guint8 lfe_on, guint8 bitrate_code);

1
gst/isomp4/fourcc.h
View file

@ -170,6 +170,7 @@ G_BEGIN_DECLS
#define FOURCC_mp4v GST_MAKE_FOURCC('m','p','4','v')
#define FOURCC_name GST_MAKE_FOURCC('n','a','m','e')
#define FOURCC_nclc GST_MAKE_FOURCC('n','c','l','c')
#define FOURCC_nclx GST_MAKE_FOURCC('n','c','l','x')
#define FOURCC_opus GST_MAKE_FOURCC('O','p','u','s')
#define FOURCC_dops GST_MAKE_FOURCC('d','O','p','s')
#define FOURCC_pasp GST_MAKE_FOURCC('p','a','s','p')

32
gst/isomp4/gstqtmux.c
View file

@ -4240,11 +4240,8 @@ gst_qt_mux_video_sink_set_caps (GstQTPad * qtpad, GstCaps * caps)
entry.fourcc = fourcc;
} else if (strcmp (mimetype, "video/x-prores") == 0) {
const gchar *variant;
const gchar *colorimetry_str;
GstVideoColorimetry colorimetry;
variant = gst_structure_get_string (structure, "variant");
colorimetry_str = gst_structure_get_string (structure, "colorimetry");
if (!variant || !g_strcmp0 (variant, "standard"))
entry.fourcc = FOURCC_apcn;
else if (!g_strcmp0 (variant, "lt"))
@ -4253,25 +4250,26 @@ gst_qt_mux_video_sink_set_caps (GstQTPad * qtpad, GstCaps * caps)
entry.fourcc = FOURCC_apch;
else if (!g_strcmp0 (variant, "proxy"))
entry.fourcc = FOURCC_apco;
if (gst_video_colorimetry_from_string (&colorimetry, colorimetry_str)) {
ext_atom = build_colr_extension (colorimetry);
if (ext_atom)
ext_atom_list = g_list_append (ext_atom_list, ext_atom);
}
if (colorimetry_str == NULL) {
/* TODO: Maybe implement better heuristics */
GST_WARNING_OBJECT (qtmux,
"Colorimetry information not found in caps. The resulting file's "
"color information might be wrong");
colorimetry_str = height < 720 ? "bt601" : "bt709";
}
}
if (!entry.fourcc)
goto refuse_caps;
if (qtmux_klass->format == GST_QT_MUX_FORMAT_QT ||
qtmux_klass->format == GST_QT_MUX_FORMAT_MP4) {
const gchar *s;
GstVideoColorimetry colorimetry;
s = gst_structure_get_string (structure, "colorimetry");
if (s && gst_video_colorimetry_from_string (&colorimetry, s)) {
ext_atom =
build_colr_extension (&colorimetry,
qtmux_klass->format == GST_QT_MUX_FORMAT_MP4);
if (ext_atom)
ext_atom_list = g_list_append (ext_atom_list, ext_atom);
}
}
if (qtmux_klass->format == GST_QT_MUX_FORMAT_QT
|| strcmp (mimetype, "image/x-j2c") == 0
|| strcmp (mimetype, "image/x-jpc") == 0) {