static gboolean
validate_colorimetry (GstVideoInfo * info)
{
const GstVideoFormatInfo *finfo = info->finfo;
if (!GST_VIDEO_FORMAT_INFO_IS_RGB (finfo) &&
info->colorimetry.matrix == GST_VIDEO_COLOR_MATRIX_RGB)
return FALSE;
if (GST_VIDEO_FORMAT_INFO_IS_YUV (finfo) &&
info->colorimetry.matrix == GST_VIDEO_COLOR_MATRIX_UNKNOWN)
return FALSE;
return TRUE;
}
/**
* gst_video_color_range_offsets:
* @range: a #GstVideoColorRange
* @info: a #GstVideoFormatInfo
* @offset: (out): output offsets
* @scale: (out): output scale
*
* Compute the offset and scale values for each component of @info. For each
* component, (c[i] - offset[i]) / scale[i] will scale the component c[i] to the
* range [0.0 .. 1.0].
*
* The reverse operation (c[i] * scale[i]) + offset[i] can be used to convert
* the component values in range [0.0 .. 1.0] back to their representation in
* @info and @range.
*/
void
gst_video_color_range_offsets (GstVideoColorRange range,
const GstVideoFormatInfo * info, gint offset[GST_VIDEO_MAX_COMPONENTS],
gint scale[GST_VIDEO_MAX_COMPONENTS])
{
gboolean yuv;
yuv = GST_VIDEO_FORMAT_INFO_IS_YUV (info);
switch (range) {
default:
case GST_VIDEO_COLOR_RANGE_0_255:
offset[0] = 0;
if (yuv) {
offset[1] = 1 << (info->depth[1] - 1);
offset[2] = 1 << (info->depth[2] - 1);
} else {
offset[1] = 0;
offset[2] = 0;
}
scale[0] = (1 << info->depth[0]) - 1;
scale[1] = (1 << info->depth[1]) - 1;
scale[2] = (1 << info->depth[2]) - 1;
break;
case GST_VIDEO_COLOR_RANGE_16_235:
offset[0] = 1 << (info->depth[0] - 4);
scale[0] = 219 << (info->depth[0] - 8);
if (yuv) {
offset[1] = 1 << (info->depth[1] - 1);
offset[2] = 1 << (info->depth[2] - 1);
scale[1] = 224 << (info->depth[1] - 8);
scale[2] = 224 << (info->depth[2] - 8);
} else {
offset[1] = 1 << (info->depth[1] - 4);
offset[2] = 1 << (info->depth[2] - 4);
scale[1] = 219 << (info->depth[1] - 8);
scale[2] = 219 << (info->depth[2] - 8);
}
break;
}
/* alpha channel is always full range */
offset[3] = 0;
scale[3] = (1 << info->depth[3]) - 1;
GST_DEBUG ("scale: %d %d %d %d", scale[0], scale[1], scale[2], scale[3]);
GST_DEBUG ("offset: %d %d %d %d", offset[0], offset[1], offset[2], offset[3]);
}
static void
set_default_colorimetry (GstVideoInfo * info)
{
const GstVideoFormatInfo *finfo = info->finfo;
if (GST_VIDEO_FORMAT_INFO_IS_YUV (finfo)) {
if (info->height >= 2160) {
info->chroma_site = GST_VIDEO_CHROMA_SITE_H_COSITED;
info->colorimetry = default_color[DEFAULT_YUV_UHD];
} else if (info->height > 576) {
info->chroma_site = GST_VIDEO_CHROMA_SITE_H_COSITED;
info->colorimetry = default_color[DEFAULT_YUV_HD];
} else {
info->chroma_site = GST_VIDEO_CHROMA_SITE_NONE;
info->colorimetry = default_color[DEFAULT_YUV_SD];
}
} else if (GST_VIDEO_FORMAT_INFO_IS_GRAY (finfo)) {
info->colorimetry = default_color[DEFAULT_GRAY];
} else if (GST_VIDEO_FORMAT_INFO_IS_RGB (finfo)) {
info->colorimetry = default_color[DEFAULT_RGB];
} else {
info->colorimetry = default_color[DEFAULT_UNKNOWN];
}
}
/* returns static descriptions and dynamic ones (such as video/x-raw),
* or NULL if caps aren't known at all */
static gchar *
format_info_get_desc (const FormatInfo * info, const GstCaps * caps)
{
const GstStructure *s;
g_assert (info != NULL);
if (info->desc != NULL)
return g_strdup (_(info->desc));
s = gst_caps_get_structure (caps, 0);
if (strcmp (info->type, "video/x-raw") == 0) {
gchar *ret = NULL;
const gchar *str = 0;
GstVideoFormat format;
const GstVideoFormatInfo *finfo;
str = gst_structure_get_string (s, "format");
if (str == NULL)
return g_strdup (_("Uncompressed video"));
format = gst_video_format_from_string (str);
if (format == GST_VIDEO_FORMAT_UNKNOWN)
return g_strdup (_("Uncompressed video"));
finfo = gst_video_format_get_info (format);
if (GST_VIDEO_FORMAT_INFO_IS_GRAY (finfo)) {
ret = g_strdup (_("Uncompressed gray"));
} else if (GST_VIDEO_FORMAT_INFO_IS_YUV (finfo)) {
const gchar *subs;
gint w_sub, h_sub, n_semi;
w_sub = GST_VIDEO_FORMAT_INFO_W_SUB (finfo, 1);
h_sub = GST_VIDEO_FORMAT_INFO_H_SUB (finfo, 1);
if (w_sub == 1 && h_sub == 1) {
subs = "4:4:4";
} else if (w_sub == 2 && h_sub == 1) {
subs = "4:2:2";
} else if (w_sub == 2 && h_sub == 2) {
subs = "4:2:0";
} else if (w_sub == 4 && h_sub == 1) {
subs = "4:1:1";
} else {
subs = "";
}
n_semi = GST_VIDEO_FORMAT_INFO_HAS_ALPHA (finfo) ? 3 : 2;
if (GST_VIDEO_FORMAT_INFO_N_PLANES (finfo) == 1) {
ret = g_strdup_printf (_("Uncompressed packed YUV %s"), subs);
} else if (GST_VIDEO_FORMAT_INFO_N_PLANES (finfo) == n_semi) {
ret = g_strdup_printf (_("Uncompressed semi-planar YUV %s"), subs);
} else {
ret = g_strdup_printf (_("Uncompressed planar YUV %s"), subs);
}
} else if (GST_VIDEO_FORMAT_INFO_IS_RGB (finfo)) {
gboolean alpha, palette;
gint bits;
alpha = GST_VIDEO_FORMAT_INFO_HAS_ALPHA (finfo);
palette = GST_VIDEO_FORMAT_INFO_HAS_PALETTE (finfo);
bits = GST_VIDEO_FORMAT_INFO_BITS (finfo);
if (palette) {
ret = g_strdup_printf (_("Uncompressed palettized %d-bit %s"),
bits, alpha ? "RGBA" : "RGB");
} else {
ret = g_strdup_printf (_("Uncompressed %d-bit %s"),
bits, alpha ? "RGBA" : "RGB");
}
} else {
ret = g_strdup (_("Uncompressed video"));
}
return ret;
} else if (strcmp (info->type, "video/x-h263") == 0) {
const gchar *variant, *ret;
variant = gst_structure_get_string (s, "variant");
if (variant == NULL)
ret = "H.263";
else if (strcmp (variant, "itu") == 0)
ret = "ITU H.26n"; /* why not ITU H.263? (tpm) */
else if (strcmp (variant, "lead") == 0)
ret = "Lead H.263";
else if (strcmp (variant, "microsoft") == 0)
ret = "Microsoft H.263";
else if (strcmp (variant, "vdolive") == 0)
ret = "VDOLive";
else if (strcmp (variant, "vivo") == 0)
ret = "Vivo H.263";
else if (strcmp (variant, "xirlink") == 0)
ret = "Xirlink H.263";
else {
GST_WARNING ("Unknown H263 variant '%s'", variant);
ret = "H.263";
}
return g_strdup (ret);
} else if (strcmp (info->type, "video/x-h264") == 0) {
const gchar *variant, *ret;
const gchar *profile;
variant = gst_structure_get_string (s, "variant");
if (variant == NULL)
ret = "H.264";
else if (strcmp (variant, "itu") == 0)
ret = "ITU H.264";
else if (strcmp (variant, "videosoft") == 0)
ret = "Videosoft H.264";
else if (strcmp (variant, "lead") == 0)
ret = "Lead H.264";
else {
GST_WARNING ("Unknown H264 variant '%s'", variant);
ret = "H.264";
}
/* profile */
profile = gst_structure_get_string (s, "profile");
if (profile != NULL)
profile = pbutils_desc_get_h264_profile_name_from_nick (profile);
if (profile == NULL)
return g_strdup (ret);
return g_strdup_printf ("%s (%s Profile)", ret, profile);
} else if (strcmp (info->type, "video/x-h265") == 0) {
const gchar *profile = gst_structure_get_string (s, "profile");
if (profile != NULL)
profile = pbutils_desc_get_h265_profile_name_from_nick (profile);
if (profile != NULL)
return g_strdup_printf ("H.265 (%s Profile)", profile);
return g_strdup ("H.265");
} else if (strcmp (info->type, "video/x-dirac") == 0) {
const gchar *profile = gst_structure_get_string (s, "profile");
if (profile == NULL)
return g_strdup ("Dirac");
if (strcmp (profile, "vc2-low-delay") == 0)
return g_strdup_printf ("Dirac (%s)", "VC-2 Low Delay Profile");
else if (strcmp (profile, "vc2-simple") == 0)
return g_strdup_printf ("Dirac (%s)", "VC-2 Simple Profile");
else if (strcmp (profile, "vc2-main") == 0)
return g_strdup_printf ("Dirac (%s)", "VC-2 Main Profile");
else
return g_strdup ("Dirac");
} else if (strcmp (info->type, "video/x-divx") == 0) {
gint ver = 0;
if (!gst_structure_get_int (s, "divxversion", &ver) || ver <= 2) {
GST_WARNING ("Unexpected DivX version in %" GST_PTR_FORMAT, caps);
return g_strdup ("DivX MPEG-4");
}
return g_strdup_printf (_("DivX MPEG-4 Version %d"), ver);
} else if (strcmp (info->type, "video/x-msmpeg") == 0) {
gint ver = 0;
if (!gst_structure_get_int (s, "msmpegversion", &ver) ||
ver < 40 || ver > 49) {
GST_WARNING ("Unexpected msmpegversion in %" GST_PTR_FORMAT, caps);
return g_strdup ("Microsoft MPEG-4 4.x");
}
return g_strdup_printf ("Microsoft MPEG-4 4.%d", ver % 10);
} else if (strcmp (info->type, "video/x-truemotion") == 0) {
gint ver = 0;
gst_structure_get_int (s, "trueversion", &ver);
switch (ver) {
case 1:
return g_strdup_printf ("Duck TrueMotion 1");
case 2:
return g_strdup_printf ("TrueMotion 2.0");
default:
GST_WARNING ("Unexpected trueversion in %" GST_PTR_FORMAT, caps);
break;
}
return g_strdup_printf ("TrueMotion");
} else if (strcmp (info->type, "video/x-xan") == 0) {
gint ver = 0;
if (!gst_structure_get_int (s, "wcversion", &ver) || ver < 1) {
GST_WARNING ("Unexpected wcversion in %" GST_PTR_FORMAT, caps);
return g_strdup ("Xan Wing Commander");
}
return g_strdup_printf ("Xan Wing Commander %u", ver);
} else if (strcmp (info->type, "video/x-indeo") == 0) {
gint ver = 0;
if (!gst_structure_get_int (s, "indeoversion", &ver) || ver < 2) {
GST_WARNING ("Unexpected indeoversion in %" GST_PTR_FORMAT, caps);
return g_strdup ("Intel Indeo");
}
return g_strdup_printf ("Intel Indeo %u", ver);
} else if (strcmp (info->type, "audio/x-wma") == 0) {
gint ver = 0;
gst_structure_get_int (s, "wmaversion", &ver);
switch (ver) {
case 1:
case 2:
case 3:
return g_strdup_printf ("Windows Media Audio %d", ver + 6);
default:
break;
}
GST_WARNING ("Unexpected wmaversion in %" GST_PTR_FORMAT, caps);
return g_strdup ("Windows Media Audio");
} else if (strcmp (info->type, "video/x-wmv") == 0) {
gint ver = 0;
const gchar *str;
gst_structure_get_int (s, "wmvversion", &ver);
str = gst_structure_get_string (s, "format");
switch (ver) {
case 1:
case 2:
case 3:
if (str && strncmp (str, "MSS", 3)) {
return g_strdup_printf ("Windows Media Video %d Screen", ver + 6);
} else {
return g_strdup_printf ("Windows Media Video %d", ver + 6);
}
default:
break;
}
GST_WARNING ("Unexpected wmvversion in %" GST_PTR_FORMAT, caps);
return g_strdup ("Windows Media Video");
} else if (strcmp (info->type, "audio/x-mace") == 0) {
gint ver = 0;
gst_structure_get_int (s, "maceversion", &ver);
if (ver == 3 || ver == 6) {
return g_strdup_printf ("MACE-%d", ver);
} else {
GST_WARNING ("Unexpected maceversion in %" GST_PTR_FORMAT, caps);
return g_strdup ("MACE");
}
} else if (strcmp (info->type, "video/x-svq") == 0) {
gint ver = 0;
gst_structure_get_int (s, "svqversion", &ver);
if (ver == 1 || ver == 3) {
return g_strdup_printf ("Sorensen Video %d", ver);
} else {
GST_WARNING ("Unexpected svqversion in %" GST_PTR_FORMAT, caps);
return g_strdup ("Sorensen Video");
}
} else if (strcmp (info->type, "video/x-asus") == 0) {
gint ver = 0;
gst_structure_get_int (s, "asusversion", &ver);
if (ver == 1 || ver == 2) {
return g_strdup_printf ("Asus Video %d", ver);
} else {
GST_WARNING ("Unexpected asusversion in %" GST_PTR_FORMAT, caps);
return g_strdup ("Asus Video");
}
} else if (strcmp (info->type, "video/x-ati-vcr") == 0) {
gint ver = 0;
gst_structure_get_int (s, "vcrversion", &ver);
if (ver == 1 || ver == 2) {
return g_strdup_printf ("ATI VCR %d", ver);
} else {
GST_WARNING ("Unexpected acrversion in %" GST_PTR_FORMAT, caps);
return g_strdup ("ATI VCR");
}
} else if (strcmp (info->type, "audio/x-adpcm") == 0) {
const GValue *layout_val;
layout_val = gst_structure_get_value (s, "layout");
if (layout_val != NULL && G_VALUE_HOLDS_STRING (layout_val)) {
const gchar *layout;
if ((layout = g_value_get_string (layout_val))) {
gchar *layout_upper, *ret;
if (strcmp (layout, "swf") == 0)
return g_strdup ("Shockwave ADPCM");
if (strcmp (layout, "microsoft") == 0)
return g_strdup ("Microsoft ADPCM");
if (strcmp (layout, "quicktime") == 0)
return g_strdup ("Quicktime ADPCM");
if (strcmp (layout, "westwood") == 0)
return g_strdup ("Westwood ADPCM");
if (strcmp (layout, "yamaha") == 0)
return g_strdup ("Yamaha ADPCM");
/* FIXME: other layouts: sbpro2, sbpro3, sbpro4, ct, g726, ea,
* adx, xa, 4xm, smjpeg, dk4, dk3, dvi */
layout_upper = g_ascii_strup (layout, -1);
ret = g_strdup_printf ("%s ADPCM", layout_upper);
g_free (layout_upper);
return ret;
}
}
return g_strdup ("ADPCM");
} else if (strcmp (info->type, "audio/mpeg") == 0) {
gint ver = 0, layer = 0;
gst_structure_get_int (s, "mpegversion", &ver);
switch (ver) {
case 1:
gst_structure_get_int (s, "layer", &layer);
switch (layer) {
case 1:
case 2:
case 3:
return g_strdup_printf ("MPEG-1 Layer %d (MP%d)", layer, layer);
default:
break;
}
GST_WARNING ("Unexpected MPEG-1 layer in %" GST_PTR_FORMAT, caps);
return g_strdup ("MPEG-1 Audio");
case 2:
return g_strdup ("MPEG-2 AAC");
case 4:
return g_strdup ("MPEG-4 AAC");
default:
break;
}
GST_WARNING ("Unexpected audio mpegversion in %" GST_PTR_FORMAT, caps);
return g_strdup ("MPEG Audio");
} else if (strcmp (info->type, "audio/x-pn-realaudio") == 0) {
gint ver = 0;
gst_structure_get_int (s, "raversion", &ver);
switch (ver) {
case 1:
return g_strdup ("RealAudio 14k4bps");
case 2:
return g_strdup ("RealAudio 28k8bps");
case 8:
return g_strdup ("RealAudio G2 (Cook)");
default:
break;
}
GST_WARNING ("Unexpected raversion in %" GST_PTR_FORMAT, caps);
return g_strdup ("RealAudio");
} else if (strcmp (info->type, "video/x-pn-realvideo") == 0) {
gint ver = 0;
gst_structure_get_int (s, "rmversion", &ver);
switch (ver) {
case 1:
return g_strdup ("RealVideo 1.0");
case 2:
return g_strdup ("RealVideo 2.0");
case 3:
return g_strdup ("RealVideo 3.0");
case 4:
return g_strdup ("RealVideo 4.0");
default:
break;
}
GST_WARNING ("Unexpected rmversion in %" GST_PTR_FORMAT, caps);
return g_strdup ("RealVideo");
} else if (strcmp (info->type, "video/mpeg") == 0) {
gboolean sysstream;
gint ver = 0;
if (!gst_structure_get_boolean (s, "systemstream", &sysstream)) {
GST_WARNING ("Missing systemstream field in mpeg video caps "
"%" GST_PTR_FORMAT, caps);
sysstream = FALSE;
}
if (gst_structure_get_int (s, "mpegversion", &ver) && ver > 0 && ver <= 4) {
if (sysstream) {
return g_strdup_printf ("MPEG-%d System Stream", ver);
} else {
const gchar *profile = gst_structure_get_string (s, "profile");
if (profile != NULL) {
if (ver == 4)
profile = pbutils_desc_get_mpeg4v_profile_name_from_nick (profile);
else if (ver == 2)
profile = pbutils_desc_get_mpeg2v_profile_name_from_nick (profile);
else
profile = NULL;
}
if (profile != NULL)
return g_strdup_printf ("MPEG-%d Video (%s Profile)", ver, profile);
else
return g_strdup_printf ("MPEG-%d Video", ver);
}
}
GST_WARNING ("Missing mpegversion field in mpeg video caps "
"%" GST_PTR_FORMAT, caps);
return g_strdup ("MPEG Video");
} else if (strcmp (info->type, "audio/x-raw") == 0) {
gint depth = 0;
gboolean is_float;
const gchar *str;
GstAudioFormat format;
const GstAudioFormatInfo *finfo;
str = gst_structure_get_string (s, "format");
format = gst_audio_format_from_string (str);
if (format == GST_AUDIO_FORMAT_UNKNOWN)
return g_strdup (_("Uncompressed audio"));
finfo = gst_audio_format_get_info (format);
depth = GST_AUDIO_FORMAT_INFO_DEPTH (finfo);
is_float = GST_AUDIO_FORMAT_INFO_IS_FLOAT (finfo);
return g_strdup_printf (_("Raw %d-bit %s audio"), depth,
is_float ? "floating-point" : "PCM");
} else if (strcmp (info->type, "video/x-tscc") == 0) {
gint version;
gst_structure_get_int (s, "tsccversion", &version);
switch (version) {
case 1:
return g_strdup ("TechSmith Screen Capture 1");
case 2:
return g_strdup ("TechSmith Screen Capture 2");
default:
break;
}
GST_WARNING ("Unexpected version in %" GST_PTR_FORMAT, caps);
return g_strdup ("TechSmith Screen Capture");
}
return NULL;
}
