1 /* GStreamer Plugins Base utils library source/sink/codec description support
2 * Copyright (C) 2006 Tim-Philipp Müller <tim centricular net>
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
21 * SECTION:gstpbutilsdescriptions
22 * @short_description: Provides human-readable descriptions for caps/codecs
23 * and encoder, decoder, URI source and URI sink elements
27 * The above functions provide human-readable strings for media formats
28 * and decoder/demuxer/depayloader/encoder/muxer/payloader elements for use
29 * in error dialogs or other messages shown to users.
32 * gst_pb_utils_add_codec_description_to_tag_list() is a utility function
33 * for demuxer and decoder elements to add audio/video codec tags from a
34 * given (fixed) #GstCaps.
43 #include "gst/gst-i18n-plugin.h"
46 #include "pbutils-private.h"
52 FLAG_CONTAINER = (1 << 0), /* format is a container format (muxed) */
53 FLAG_SYSTEMSTREAM = (1 << 1) /* match record only if caps have systemstream=true */
63 static const FormatInfo formats[] = {
64 /* container/tag formats with static descriptions */
65 {"application/gxf", "General Exchange Format (GXF)", FLAG_CONTAINER},
66 {"application/ogg", "Ogg", FLAG_CONTAINER},
67 {"application/mxf", "Material eXchange Format (MXF)", FLAG_CONTAINER},
68 {"application/vnd.rn-realmedia", "Realmedia", FLAG_CONTAINER},
69 {"application/x-annodex", "Ogg", FLAG_CONTAINER},
70 {"application/x-id3", N_("ID3 tag"), FLAG_CONTAINER},
71 {"application/x-ape", N_("APE tag"), FLAG_CONTAINER},
72 {"application/x-apetag", N_("APE tag"), FLAG_CONTAINER},
73 {"application/x-icy", N_("ICY internet radio"), FLAG_CONTAINER},
74 {"application/x-3gp", "3GP", FLAG_CONTAINER},
75 {"application/x-pn-realaudio", "RealAudio", FLAG_CONTAINER},
76 {"application/x-yuv4mpeg", "Y4M", FLAG_CONTAINER},
77 {"multipart/x-mixed-replace", "Multipart", FLAG_CONTAINER},
78 {"video/x-fli", "FLI/FLC/FLX Animation", FLAG_CONTAINER},
79 {"video/x-flv", "Flash", FLAG_CONTAINER},
80 {"video/x-matroska", "Matroska", FLAG_CONTAINER},
81 {"video/webm", "WebM", FLAG_CONTAINER},
82 {"video/x-ms-asf", "Advanced Streaming Format (ASF)", FLAG_CONTAINER},
83 {"video/x-msvideo", "Audio Video Interleave (AVI)", FLAG_CONTAINER},
84 {"video/x-quicktime", "Quicktime", FLAG_CONTAINER},
85 {"video/quicktime", "Quicktime", FLAG_CONTAINER},
86 {"video/mj2", "Motion JPEG 2000", FLAG_CONTAINER},
88 /* audio formats with static descriptions */
89 {"audio/x-ac3", "AC-3 (ATSC A/52)", 0},
90 {"audio/ac3", "AC-3 (ATSC A/52)", 0},
91 {"audio/x-private-ac3", "DVD AC-3 (ATSC A/52)", 0},
92 {"audio/x-private1-ac3", "DVD AC-3 (ATSC A/52)", 0},
93 {"audio/x-alaw", "A-Law", 0},
94 {"audio/amr", "Adaptive Multi Rate (AMR)", 0},
95 {"audio/AMR", "Adaptive Multi Rate (AMR)", 0},
96 {"audio/AMR-WB", "Adaptive Multi Rate WideBand (AMR-WB)", 0},
97 {"audio/iLBC-sh", "Internet Low Bitrate Codec (iLBC)", 0},
98 {"audio/ms-gsm", "MS GSM", 0},
99 {"audio/qcelp", "QCELP", 0},
100 {"audio/aiff", "Audio Interchange File Format (AIFF)", 0},
101 {"audio/x-aiff", "Audio Interchange File Format (AIFF)", 0},
102 {"audio/x-alac", N_("Apple Lossless Audio (ALAC)"), 0},
103 {"audio/x-amr-nb-sh", "Adaptive Multi Rate NarrowBand (AMR-NB)", 0},
104 {"audio/x-amr-wb-sh", "Adaptive Multi Rate WideBand (AMR-WB)", 0},
105 {"audio/x-au", "Sun .au", 0},
106 {"audio/x-celt", "Constrained Energy Lapped Transform (CELT)", 0},
107 {"audio/x-cinepak", "Cinepak Audio", 0},
108 {"audio/x-dpcm", "DPCM", 0},
109 {"audio/x-dts", "DTS", 0},
110 {"audio/x-private1-dts", "DTS", 0},
111 {"audio/x-dv", "DV Audio", 0},
112 {"audio/x-flac", N_("Free Lossless Audio Codec (FLAC)"), 0},
113 {"audio/x-gsm", "GSM", 0},
114 {"audio/x-iec958", "S/PDIF IEC958", 0}, /* TODO: check description */
115 {"audio/x-iLBC", "Internet Low Bitrate Codec (iLBC)", 0},
116 {"audio/x-ircam", "Berkeley/IRCAM/CARL", 0},
117 {"audio/x-lpcm", "LPCM", 0},
118 {"audio/x-private1-lpcm", "DVD LPCM", 0},
119 {"audio/x-m4a", "MPEG-4 AAC", FLAG_CONTAINER},
120 {"audio/x-mod", "Module Music Format (MOD)", 0},
121 {"audio/x-mulaw", "Mu-Law", 0},
122 {"audio/x-musepack", "Musepack (MPC)", 0},
123 {"audio/x-nellymoser", "Nellymoser Asao", 0},
124 {"audio/x-nist", "Sphere NIST", 0},
125 {"audio/x-nsf", "Nintendo NSF", 0},
126 {"audio/x-paris", "Ensoniq PARIS", 0},
127 {"audio/x-qdm", "QDesign Music (QDM)", 0},
128 {"audio/x-qdm2", "QDesign Music (QDM) 2", 0},
129 {"audio/x-ralf-mpeg4-generic", "Real Audio Lossless (RALF)", 0},
130 {"audio/x-sds", "SDS", 0},
131 {"audio/x-shorten", "Shorten Lossless", 0},
132 {"audio/x-sid", "Sid", 0},
133 {"audio/x-sipro", "Sipro/ACELP.NET Voice", 0},
134 {"audio/x-siren", "Siren", 0},
135 {"audio/x-spc", "SNES-SPC700 Sound File Data", 0},
136 {"audio/x-speex", "Speex", 0},
137 {"audio/x-svx", "Amiga IFF / SVX8 / SV16", 0},
138 {"audio/x-tta", N_("Lossless True Audio (TTA)"), 0},
139 {"audio/x-ttafile", N_("Lossless True Audio (TTA)"), 0},
140 {"audio/x-vnd.sony.atrac3", "Sony ATRAC3", 0},
141 {"audio/x-vorbis", "Vorbis", 0},
142 {"audio/x-voc", "SoundBlaster VOC", 0},
143 {"audio/x-w64", "Sonic Foundry Wave64", 0},
144 {"audio/x-wav", "WAV", 0},
145 {"audio/x-wavpack", "Wavpack", 0},
146 {"audio/x-wavpack-correction", "Wavpack", 0},
147 {"audio/x-wms", N_("Windows Media Speech"), 0},
148 {"audio/x-voxware", "Voxware", 0},
151 /* video formats with static descriptions */
152 {"video/sp5x", "Sunplus JPEG 5.x", 0},
153 {"video/vivo", "Vivo", 0},
154 {"video/x-3ivx", "3ivx", 0},
155 {"video/x-4xm", "4X Techologies Video", 0},
156 {"video/x-apple-video", "Apple video", 0},
157 {"video/x-aasc", "Autodesk Animator", 0},
158 {"video/x-camtasia", "TechSmith Camtasia", 0},
159 {"video/x-cdxa", "RIFF/CDXA (VCD)", 0},
160 {"video/x-cinepak", "Cinepak Video", 0},
161 {"video/x-cirrus-logic-accupak", "Cirrus Logipak AccuPak", 0},
162 {"video/x-compressed-yuv", N_("CYUV Lossless"), 0},
163 {"video/x-dirac", "Dirac", 0},
164 {"video/x-dnxhd", "Digital Nonlinear Extensible High Definition (DNxHD)", 0},
165 /* FIXME 0.11: rename to subpicture/x-dvd or so */
166 {"video/x-dvd-subpicture", "DVD subpicture", 0},
167 {"video/x-ffv", N_("FFMpeg v1"), 0},
168 {"video/x-flash-screen", "Flash Screen Video", 0},
169 {"video/x-flash-video", "Sorenson Spark Video", 0},
170 {"video/x-h261", "H.261", 0},
171 {"video/x-huffyuv", "Huffyuv", 0},
172 {"video/x-intel-h263", "Intel H.263", 0},
173 {"video/x-jpeg", "Motion JPEG", 0},
174 /* { "video/x-jpeg-b", "", 0 }, does this actually exist? */
175 {"video/x-loco", "LOCO Lossless", 0},
176 {"video/x-mimic", "MIMIC", 0},
177 {"video/x-mjpeg", "Motion-JPEG", 0},
178 {"video/x-mjpeg-b", "Motion-JPEG format B", 0},
179 {"video/mpegts", "MPEG-2 Transport Stream", FLAG_CONTAINER},
180 {"video/x-mng", "Multiple Image Network Graphics (MNG)", 0},
181 {"video/x-mszh", N_("Lossless MSZH"), 0},
182 {"video/x-msvideocodec", "Microsoft Video 1", 0},
183 {"video/x-mve", "Interplay MVE", FLAG_CONTAINER},
184 {"video/x-nut", "NUT", FLAG_CONTAINER},
185 {"video/x-nuv", "MythTV NuppelVideo (NUV)", FLAG_CONTAINER},
186 {"video/x-qdrw", "Apple QuickDraw", 0},
187 {"video/x-raw-gray", N_("Uncompressed Gray Image"), 0},
188 {"video/x-smc", "Apple SMC", 0},
189 {"video/x-smoke", "Smoke", 0},
190 {"video/x-tarkin", "Tarkin", 0},
191 {"video/x-theora", "Theora", 0},
192 {"video/x-rle", N_("Run-length encoding"), 0},
193 {"video/x-ultimotion", "IBM UltiMotion", 0},
194 {"video/x-vcd", "VideoCD (VCD)", 0},
195 {"video/x-vmnc", "VMWare NC", 0},
196 {"video/x-vp3", "On2 VP3", 0},
197 {"video/x-vp5", "On2 VP5", 0},
198 {"video/x-vp6", "On2 VP6", 0},
199 {"video/x-vp6-flash", "On2 VP6/Flash", 0},
200 {"video/x-vp6-alpha", "On2 VP6 with alpha", 0},
201 {"video/x-vp7", "On2 VP7", 0},
202 {"video/x-vp8", "VP8", 0},
203 {"video/x-xvid", "XVID MPEG-4", 0},
204 {"video/x-zlib", "Lossless zlib video", 0},
205 {"video/x-zmbv", "Zip Motion Block video", 0},
207 /* image formats with static descriptions */
208 {"image/bmp", "BMP", 0},
209 {"image/x-bmp", "BMP", 0},
210 {"image/x-MS-bmp", "BMP", 0},
211 {"image/gif", "GIF", 0},
212 {"image/jpeg", "JPEG", 0},
213 {"image/jng", "JPEG Network Graphics (JNG)", 0},
214 {"image/png", "PNG", 0},
215 {"image/pbm", "Portable BitMap (PBM)", 0},
216 {"image/ppm", "Portable PixMap (PPM)", 0},
217 {"image/svg+xml", "Scalable Vector Graphics (SVG)", 0},
218 {"image/tiff", "TIFF", 0},
219 {"image/x-cmu-raster", "CMU Raster Format", 0},
220 {"image/x-degas", "DEGAS", 0},
221 {"image/x-icon", "ICO", 0},
222 {"image/x-j2c", "JPEG 2000", 0},
223 {"image/x-jpc", "JPEG 2000", 0},
224 {"image/jp2", "JPEG 2000", 0},
225 {"image/x-pcx", "PCX", 0},
226 {"image/x-xcf", "XFC", 0},
227 {"image/x-pixmap", "XPM", 0},
228 {"image/x-portable-anymap", "Portable AnyMap (PAM)", 0},
229 {"image/x-portable-graymap", "Portable GrayMap (PGM)", 0},
230 {"image/x-xpixmap", "XPM", 0},
231 {"image/x-quicktime", "QuickTime Image Format (QTIF)", 0},
232 {"image/x-sun-raster", "Sun Raster Format (RAS)", 0},
233 {"image/x-tga", "TGA", 0},
235 /* subtitle formats with static descriptions */
236 {"application/x-ass", "ASS", 0},
237 {"application/x-subtitle-sami", N_("Sami subtitle format"), 0},
238 {"application/x-subtitle-tmplayer", N_("TMPlayer subtitle format"), 0},
239 {"application/x-kate", "Kate", 0},
240 {"subtitle/x-kate", N_("Kate subtitle format"), 0},
241 {"subpicture/x-dvb", "DVB subtitles", 0},
242 /* add variant field to typefinder? { "application/x-subtitle", N_("subtitle"), 0}, */
244 /* non-audio/video/container formats */
245 {"hdv/aux-v", "HDV AUX-V", 0},
246 {"hdv/aux-a", "HDV AUX-A", 0},
248 /* formats with dynamic descriptions */
249 {"audio/mpeg", NULL, 0},
250 {"audio/x-adpcm", NULL, 0},
251 {"audio/x-mace", NULL, 0},
252 {"audio/x-pn-realaudio", NULL, 0},
253 {"audio/x-raw-int", NULL, 0},
254 {"audio/x-raw-float", NULL, 0},
255 {"audio/x-wma", NULL, 0},
256 {"video/mpeg", NULL, FLAG_CONTAINER | FLAG_SYSTEMSTREAM},
257 {"video/mpeg", NULL, 0},
258 {"video/x-asus", NULL, 0},
259 {"video/x-ati-vcr", NULL, 0},
260 {"video/x-divx", NULL, 0},
261 {"video/x-dv", "Digital Video (DV) System Stream",
262 FLAG_CONTAINER | FLAG_SYSTEMSTREAM},
263 {"video/x-dv", "Digital Video (DV)", 0},
264 {"video/x-h263", NULL, 0},
265 {"video/x-h264", NULL, 0},
266 {"video/x-indeo", NULL, 0},
267 {"video/x-msmpeg", NULL, 0},
268 {"video/x-pn-realvideo", NULL, 0},
270 /* do these exist? are they used anywhere? */
271 {"video/x-pn-multirate-realvideo", NULL, 0},
272 {"audio/x-pn-multirate-realaudio", NULL, 0},
273 {"audio/x-pn-multirate-realaudio-live", NULL, 0},
275 {"video/x-truemotion", NULL, 0},
276 {"video/x-raw-rgb", NULL, 0},
277 {"video/x-raw-yuv", NULL, 0},
278 {"video/x-svq", NULL, 0},
279 {"video/x-wmv", NULL, 0},
280 {"video/x-xan", NULL, 0}
283 /* returns static descriptions and dynamic ones (such as video/x-raw-yuv),
284 * or NULL if caps aren't known at all */
286 format_info_get_desc (const FormatInfo * info, const GstCaps * caps)
288 const GstStructure *s;
290 g_assert (info != NULL);
292 if (info->desc != NULL)
293 return g_strdup (_(info->desc));
295 s = gst_caps_get_structure (caps, 0);
297 if (strcmp (info->type, "video/x-raw-yuv") == 0) {
298 const gchar *ret = NULL;
301 gst_structure_get_fourcc (s, "format", &fourcc);
303 case GST_MAKE_FOURCC ('I', '4', '2', '0'):
304 ret = _("Uncompressed planar YUV 4:2:0");
306 case GST_MAKE_FOURCC ('Y', 'V', '1', '2'):
307 ret = _("Uncompressed planar YVU 4:2:0");
309 case GST_MAKE_FOURCC ('Y', 'U', 'Y', '2'):
310 ret = _("Uncompressed packed YUV 4:2:2");
312 case GST_MAKE_FOURCC ('Y', 'U', 'V', '9'):
313 ret = _("Uncompressed packed YUV 4:1:0");
315 case GST_MAKE_FOURCC ('Y', 'V', 'U', '9'):
316 ret = _("Uncompressed packed YVU 4:1:0");
318 case GST_MAKE_FOURCC ('Y', 'V', 'Y', 'U'):
319 case GST_MAKE_FOURCC ('U', 'Y', 'V', 'Y'):
320 ret = _("Uncompressed packed YUV 4:2:2");
322 case GST_MAKE_FOURCC ('Y', '4', '1', 'P'):
323 ret = _("Uncompressed packed YUV 4:1:1");
325 case GST_MAKE_FOURCC ('I', 'Y', 'U', '2'):
326 ret = _("Uncompressed packed YUV 4:4:4");
328 case GST_MAKE_FOURCC ('Y', '4', '2', 'B'):
329 ret = _("Uncompressed planar YUV 4:2:2");
331 case GST_MAKE_FOURCC ('Y', '4', '1', 'B'):
332 ret = _("Uncompressed planar YUV 4:1:1");
334 case GST_MAKE_FOURCC ('Y', '8', '0', '0'):
335 ret = _("Uncompressed black and white Y-plane");
338 ret = _("Uncompressed YUV");
341 return g_strdup (ret);
342 } else if (strcmp (info->type, "video/x-raw-rgb") == 0) {
343 const gchar *rgb_str;
346 gst_structure_get_int (s, "depth", &depth);
347 rgb_str = gst_structure_has_field (s, "alpha_mask") ? "RGBA" : "RGB";
348 if (gst_structure_has_field (s, "paletted_data")) {
349 return g_strdup_printf (_("Uncompressed palettized %d-bit %s"), depth,
352 return g_strdup_printf ("Uncompressed %d-bit %s", depth, rgb_str);
354 } else if (strcmp (info->type, "video/x-h263") == 0) {
355 const gchar *variant, *ret;
357 variant = gst_structure_get_string (s, "variant");
360 else if (strcmp (variant, "itu") == 0)
361 ret = "ITU H.26n"; /* why not ITU H.263? (tpm) */
362 else if (strcmp (variant, "lead") == 0)
364 else if (strcmp (variant, "microsoft") == 0)
365 ret = "Microsoft H.263";
366 else if (strcmp (variant, "vdolive") == 0)
368 else if (strcmp (variant, "vivo") == 0)
370 else if (strcmp (variant, "xirlink") == 0)
371 ret = "Xirlink H.263";
373 GST_WARNING ("Unknown H263 variant '%s'", variant);
376 return g_strdup (ret);
377 } else if (strcmp (info->type, "video/x-h264") == 0) {
378 const gchar *variant, *ret;
380 variant = gst_structure_get_string (s, "variant");
383 else if (strcmp (variant, "itu") == 0)
385 else if (strcmp (variant, "videosoft") == 0)
386 ret = "Videosoft H.264";
387 else if (strcmp (variant, "lead") == 0)
390 GST_WARNING ("Unknown H264 variant '%s'", variant);
393 return g_strdup (ret);
394 } else if (strcmp (info->type, "video/x-divx") == 0) {
397 if (!gst_structure_get_int (s, "divxversion", &ver) || ver <= 2) {
398 GST_WARNING ("Unexpected DivX version in %" GST_PTR_FORMAT, caps);
399 return g_strdup ("DivX MPEG-4");
401 return g_strdup_printf (_("DivX MPEG-4 Version %d"), ver);
402 } else if (strcmp (info->type, "video/x-msmpeg") == 0) {
405 if (!gst_structure_get_int (s, "msmpegversion", &ver) ||
406 ver < 40 || ver > 49) {
407 GST_WARNING ("Unexpected msmpegversion in %" GST_PTR_FORMAT, caps);
408 return g_strdup ("Microsoft MPEG-4 4.x");
410 return g_strdup_printf ("Microsoft MPEG-4 4.%d", ver % 10);
411 } else if (strcmp (info->type, "video/x-truemotion") == 0) {
414 gst_structure_get_int (s, "trueversion", &ver);
417 return g_strdup_printf ("Duck TrueMotion 1");
419 return g_strdup_printf ("TrueMotion 2.0");
421 GST_WARNING ("Unexpected trueversion in %" GST_PTR_FORMAT, caps);
424 return g_strdup_printf ("TrueMotion");
425 } else if (strcmp (info->type, "video/x-xan") == 0) {
428 if (!gst_structure_get_int (s, "wcversion", &ver) || ver < 1) {
429 GST_WARNING ("Unexpected wcversion in %" GST_PTR_FORMAT, caps);
430 return g_strdup ("Xan Wing Commander");
432 return g_strdup_printf ("Xan Wing Commander %u", ver);
433 } else if (strcmp (info->type, "video/x-indeo") == 0) {
436 if (!gst_structure_get_int (s, "indeoversion", &ver) || ver < 2) {
437 GST_WARNING ("Unexpected indeoversion in %" GST_PTR_FORMAT, caps);
438 return g_strdup ("Intel Indeo");
440 return g_strdup_printf ("Intel Indeo %u", ver);
441 } else if (strcmp (info->type, "audio/x-wma") == 0) {
444 gst_structure_get_int (s, "wmaversion", &ver);
449 return g_strdup_printf ("Windows Media Audio %d", ver + 6);
453 GST_WARNING ("Unexpected wmaversion in %" GST_PTR_FORMAT, caps);
454 return g_strdup ("Windows Media Audio");
455 } else if (strcmp (info->type, "video/x-wmv") == 0) {
458 gst_structure_get_int (s, "wmvversion", &ver);
463 return g_strdup_printf ("Windows Media Video %d", ver + 6);
467 GST_WARNING ("Unexpected wmvversion in %" GST_PTR_FORMAT, caps);
468 return g_strdup ("Windows Media Video");
469 } else if (strcmp (info->type, "audio/x-mace") == 0) {
472 gst_structure_get_int (s, "maceversion", &ver);
473 if (ver == 3 || ver == 6) {
474 return g_strdup_printf ("MACE-%d", ver);
476 GST_WARNING ("Unexpected maceversion in %" GST_PTR_FORMAT, caps);
477 return g_strdup ("MACE");
479 } else if (strcmp (info->type, "video/x-svq") == 0) {
482 gst_structure_get_int (s, "svqversion", &ver);
483 if (ver == 1 || ver == 3) {
484 return g_strdup_printf ("Sorensen Video %d", ver);
486 GST_WARNING ("Unexpected svqversion in %" GST_PTR_FORMAT, caps);
487 return g_strdup ("Sorensen Video");
489 } else if (strcmp (info->type, "video/x-asus") == 0) {
492 gst_structure_get_int (s, "asusversion", &ver);
493 if (ver == 1 || ver == 2) {
494 return g_strdup_printf ("Asus Video %d", ver);
496 GST_WARNING ("Unexpected asusversion in %" GST_PTR_FORMAT, caps);
497 return g_strdup ("Asus Video");
499 } else if (strcmp (info->type, "video/x-ati-vcr") == 0) {
502 gst_structure_get_int (s, "vcrversion", &ver);
503 if (ver == 1 || ver == 2) {
504 return g_strdup_printf ("ATI VCR %d", ver);
506 GST_WARNING ("Unexpected acrversion in %" GST_PTR_FORMAT, caps);
507 return g_strdup ("ATI VCR");
509 } else if (strcmp (info->type, "audio/x-adpcm") == 0) {
510 const GValue *layout_val;
512 layout_val = gst_structure_get_value (s, "layout");
513 if (layout_val != NULL && G_VALUE_HOLDS_STRING (layout_val)) {
516 if ((layout = g_value_get_string (layout_val))) {
517 gchar *layout_upper, *ret;
519 if (strcmp (layout, "swf") == 0)
520 return g_strdup ("Shockwave ADPCM");
521 if (strcmp (layout, "microsoft") == 0)
522 return g_strdup ("Microsoft ADPCM");
523 if (strcmp (layout, "quicktime") == 0)
524 return g_strdup ("Quicktime ADPCM");
525 if (strcmp (layout, "westwood") == 0)
526 return g_strdup ("Westwood ADPCM");
527 if (strcmp (layout, "yamaha") == 0)
528 return g_strdup ("Yamaha ADPCM");
529 /* FIXME: other layouts: sbpro2, sbpro3, sbpro4, ct, g726, ea,
530 * adx, xa, 4xm, smjpeg, dk4, dk3, dvi */
531 layout_upper = g_ascii_strup (layout, -1);
532 ret = g_strdup_printf ("%s ADPCM", layout_upper);
533 g_free (layout_upper);
537 return g_strdup ("ADPCM");
538 } else if (strcmp (info->type, "audio/mpeg") == 0) {
539 gint ver = 0, layer = 0;
541 gst_structure_get_int (s, "mpegversion", &ver);
545 gst_structure_get_int (s, "layer", &layer);
550 return g_strdup_printf ("MPEG-1 Layer %d (MP%d)", layer, layer);
554 GST_WARNING ("Unexpected MPEG-1 layer in %" GST_PTR_FORMAT, caps);
555 return g_strdup ("MPEG-1 Audio");
557 return g_strdup ("MPEG-4 AAC");
561 GST_WARNING ("Unexpected audio mpegversion in %" GST_PTR_FORMAT, caps);
562 return g_strdup ("MPEG Audio");
563 } else if (strcmp (info->type, "audio/x-pn-realaudio") == 0) {
566 gst_structure_get_int (s, "raversion", &ver);
569 return g_strdup ("RealAudio 14k4bps");
571 return g_strdup ("RealAudio 28k8bps");
573 return g_strdup ("RealAudio G2 (Cook)");
577 GST_WARNING ("Unexpected raversion in %" GST_PTR_FORMAT, caps);
578 return g_strdup ("RealAudio");
579 } else if (strcmp (info->type, "video/x-pn-realvideo") == 0) {
582 gst_structure_get_int (s, "rmversion", &ver);
585 return g_strdup ("RealVideo 1.0");
587 return g_strdup ("RealVideo 2.0");
589 return g_strdup ("RealVideo 3.0");
591 return g_strdup ("RealVideo 4.0");
595 GST_WARNING ("Unexpected rmversion in %" GST_PTR_FORMAT, caps);
596 return g_strdup ("RealVideo");
597 } else if (strcmp (info->type, "video/mpeg") == 0) {
601 if (!gst_structure_get_boolean (s, "systemstream", &sysstream) ||
602 !gst_structure_get_int (s, "mpegversion", &ver) || ver < 1 || ver > 4) {
603 GST_WARNING ("Missing fields in mpeg video caps %" GST_PTR_FORMAT, caps);
606 return g_strdup_printf ("MPEG-%d System Stream", ver);
608 return g_strdup_printf ("MPEG-%d Video", ver);
611 return g_strdup ("MPEG Video");
612 } else if (strcmp (info->type, "audio/x-raw-int") == 0) {
615 /* 8-bit pcm might not have depth field (?) */
616 if (!gst_structure_get_int (s, "depth", &bitdepth))
617 gst_structure_get_int (s, "width", &bitdepth);
619 return g_strdup_printf (_("Raw %d-bit PCM audio"), bitdepth);
621 return g_strdup (_("Raw PCM audio"));
622 } else if (strcmp (info->type, "audio/x-raw-float") == 0) {
625 gst_structure_get_int (s, "width", &bitdepth);
627 return g_strdup_printf (_("Raw %d-bit floating-point audio"), bitdepth);
629 return g_strdup (_("Raw floating-point audio"));
635 /* returns format info structure, will return NULL for dynamic media types! */
636 static const FormatInfo *
637 find_format_info (const GstCaps * caps)
639 const GstStructure *s;
640 const gchar *media_type;
643 s = gst_caps_get_structure (caps, 0);
644 media_type = gst_structure_get_name (s);
646 for (i = 0; i < G_N_ELEMENTS (formats); ++i) {
647 if (strcmp (media_type, formats[i].type) == 0) {
648 gboolean is_sys = FALSE;
650 if ((formats[i].flags & FLAG_SYSTEMSTREAM) == 0)
653 /* this record should only be matched if the systemstream field is set */
654 if (gst_structure_get_boolean (s, "systemstream", &is_sys) && is_sys)
663 caps_are_rtp_caps (const GstCaps * caps, const gchar * media, gchar ** format)
665 const GstStructure *s;
668 g_assert (media != NULL && format != NULL);
670 s = gst_caps_get_structure (caps, 0);
671 if (!gst_structure_has_name (s, "application/x-rtp"))
673 if (!gst_structure_has_field_typed (s, "media", G_TYPE_STRING))
675 str = gst_structure_get_string (s, "media");
676 if (str == NULL || !g_str_equal (str, media))
678 str = gst_structure_get_string (s, "encoding-name");
679 if (str == NULL || *str == '\0')
682 if (strcmp (str, "X-ASF-PF") == 0) {
683 *format = g_strdup ("Windows Media");
684 } else if (g_str_has_prefix (str, "X-")) {
685 *format = g_strdup (str + 2);
687 *format = g_strdup (str);
694 * gst_pb_utils_get_source_description:
695 * @protocol: the protocol the source element needs to handle, e.g. "http"
697 * Returns a localised string describing a source element handling the protocol
698 * specified in @protocol, for use in error dialogs or other messages to be
699 * seen by the user. Should never return NULL unless @protocol is invalid.
701 * This function is mainly for internal use, applications would typically
702 * use gst_missing_plugin_message_get_description() to get a description of
703 * a missing feature from a missing-plugin message.
705 * Returns: a newly-allocated description string, or NULL on error. Free
706 * string with g_free() when not needed any longer.
709 gst_pb_utils_get_source_description (const gchar * protocol)
711 gchar *proto_uc, *ret;
713 g_return_val_if_fail (protocol != NULL, NULL);
715 if (strcmp (protocol, "cdda") == 0)
716 return g_strdup (_("Audio CD source"));
718 if (strcmp (protocol, "dvd") == 0)
719 return g_strdup (_("DVD source"));
721 if (strcmp (protocol, "rtsp") == 0)
722 return g_strdup (_("Real Time Streaming Protocol (RTSP) source"));
724 /* TODO: what about mmst, mmsu, mmsh? */
725 if (strcmp (protocol, "mms") == 0)
726 return g_strdup (_("Microsoft Media Server (MMS) protocol source"));
728 /* make protocol uppercase */
729 proto_uc = g_ascii_strup (protocol, -1);
731 /* TODO: find out how to add a comment for translators to the source code
732 * (and tell them to make the first letter uppercase below if they move
733 * the protocol to the middle or end of the string) */
734 ret = g_strdup_printf (_("%s protocol source"), proto_uc);
742 * gst_pb_utils_get_sink_description:
743 * @protocol: the protocol the sink element needs to handle, e.g. "http"
745 * Returns a localised string describing a sink element handling the protocol
746 * specified in @protocol, for use in error dialogs or other messages to be
747 * seen by the user. Should never return NULL unless @protocol is invalid.
749 * This function is mainly for internal use, applications would typically
750 * use gst_missing_plugin_message_get_description() to get a description of
751 * a missing feature from a missing-plugin message.
753 * Returns: a newly-allocated description string, or NULL on error. Free
754 * string with g_free() when not needed any longer.
757 gst_pb_utils_get_sink_description (const gchar * protocol)
759 gchar *proto_uc, *ret;
761 g_return_val_if_fail (protocol != NULL, NULL);
763 /* make protocol uppercase */
764 proto_uc = g_ascii_strup (protocol, -1);
766 /* TODO: find out how to add a comment for translators to the source code
767 * (and tell them to make the first letter uppercase below if they move
768 * the protocol to the middle or end of the string) */
769 ret = g_strdup_printf ("%s protocol sink", proto_uc);
777 * gst_pb_utils_get_decoder_description:
778 * @caps: the (fixed) #GstCaps for which an decoder description is needed
780 * Returns a localised string describing an decoder for the format specified
781 * in @caps, for use in error dialogs or other messages to be seen by the user.
782 * Should never return NULL unless @factory_name or @caps are invalid.
784 * This function is mainly for internal use, applications would typically
785 * use gst_missing_plugin_message_get_description() to get a description of
786 * a missing feature from a missing-plugin message.
788 * Returns: a newly-allocated description string, or NULL on error. Free
789 * string with g_free() when not needed any longer.
792 gst_pb_utils_get_decoder_description (const GstCaps * caps)
797 g_return_val_if_fail (caps != NULL, NULL);
798 g_return_val_if_fail (GST_IS_CAPS (caps), NULL);
800 tmp = copy_and_clean_caps (caps);
802 g_return_val_if_fail (gst_caps_is_fixed (tmp), NULL);
804 /* special-case RTP caps */
805 if (caps_are_rtp_caps (tmp, "video", &str)) {
806 ret = g_strdup_printf (_("%s video RTP depayloader"), str);
807 } else if (caps_are_rtp_caps (tmp, "audio", &str)) {
808 ret = g_strdup_printf (_("%s audio RTP depayloader"), str);
809 } else if (caps_are_rtp_caps (tmp, "application", &str)) {
810 ret = g_strdup_printf (_("%s RTP depayloader"), str);
812 const FormatInfo *info;
814 str = gst_pb_utils_get_codec_description (tmp);
815 info = find_format_info (tmp);
816 if (info != NULL && (info->flags & FLAG_CONTAINER) != 0) {
817 ret = g_strdup_printf (_("%s demuxer"), str);
819 ret = g_strdup_printf (_("%s decoder"), str);
824 gst_caps_unref (tmp);
830 * gst_pb_utils_get_encoder_description:
831 * @caps: the (fixed) #GstCaps for which an encoder description is needed
833 * Returns a localised string describing an encoder for the format specified
834 * in @caps, for use in error dialogs or other messages to be seen by the user.
835 * Should never return NULL unless @factory_name or @caps are invalid.
837 * This function is mainly for internal use, applications would typically
838 * use gst_missing_plugin_message_get_description() to get a description of
839 * a missing feature from a missing-plugin message.
841 * Returns: a newly-allocated description string, or NULL on error. Free
842 * string with g_free() when not needed any longer.
845 gst_pb_utils_get_encoder_description (const GstCaps * caps)
850 g_return_val_if_fail (caps != NULL, NULL);
851 g_return_val_if_fail (GST_IS_CAPS (caps), NULL);
852 tmp = copy_and_clean_caps (caps);
853 g_return_val_if_fail (gst_caps_is_fixed (tmp), NULL);
855 /* special-case RTP caps */
856 if (caps_are_rtp_caps (tmp, "video", &str)) {
857 ret = g_strdup_printf (_("%s video RTP payloader"), str);
858 } else if (caps_are_rtp_caps (tmp, "audio", &str)) {
859 ret = g_strdup_printf (_("%s audio RTP payloader"), str);
860 } else if (caps_are_rtp_caps (tmp, "application", &str)) {
861 ret = g_strdup_printf (_("%s RTP payloader"), str);
863 const FormatInfo *info;
865 str = gst_pb_utils_get_codec_description (tmp);
866 info = find_format_info (tmp);
867 if (info != NULL && (info->flags & FLAG_CONTAINER) != 0) {
868 ret = g_strdup_printf (_("%s muxer"), str);
870 ret = g_strdup_printf (_("%s encoder"), str);
875 gst_caps_unref (tmp);
881 * gst_pb_utils_get_element_description:
882 * @factory_name: the name of the element, e.g. "gnomevfssrc"
884 * Returns a localised string describing the given element, for use in
885 * error dialogs or other messages to be seen by the user. Should never
886 * return NULL unless @factory_name is invalid.
888 * This function is mainly for internal use, applications would typically
889 * use gst_missing_plugin_message_get_description() to get a description of
890 * a missing feature from a missing-plugin message.
892 * Returns: a newly-allocated description string, or NULL on error. Free
893 * string with g_free() when not needed any longer.
896 gst_pb_utils_get_element_description (const gchar * factory_name)
900 g_return_val_if_fail (factory_name != NULL, NULL);
902 ret = g_strdup_printf (_("GStreamer element %s"), factory_name);
903 if (ret && g_str_has_prefix (ret, factory_name))
904 *ret = g_ascii_toupper (*ret);
910 * gst_pb_utils_add_codec_description_to_tag_list:
911 * @taglist: a #GstTagList
912 * @codec_tag: a GStreamer codec tag such as #GST_TAG_AUDIO_CODEC,
913 * #GST_TAG_VIDEO_CODEC or #GST_TAG_CODEC
914 * @caps: the (fixed) #GstCaps for which a codec tag should be added.
916 * Adds a codec tag describing the format specified by @caps to @taglist.
918 * Returns: TRUE if a codec tag was added, FALSE otherwise.
921 gst_pb_utils_add_codec_description_to_tag_list (GstTagList * taglist,
922 const gchar * codec_tag, const GstCaps * caps)
924 const FormatInfo *info;
927 g_return_val_if_fail (taglist != NULL, FALSE);
928 g_return_val_if_fail (GST_IS_TAG_LIST (taglist), FALSE);
929 g_return_val_if_fail (codec_tag != NULL, FALSE);
930 g_return_val_if_fail (gst_tag_exists (codec_tag), FALSE);
931 g_return_val_if_fail (gst_tag_get_type (codec_tag) == G_TYPE_STRING, FALSE);
932 g_return_val_if_fail (caps != NULL, FALSE);
933 g_return_val_if_fail (GST_IS_CAPS (caps), FALSE);
935 info = find_format_info (caps);
939 desc = format_info_get_desc (info, caps);
940 gst_tag_list_add (taglist, GST_TAG_MERGE_REPLACE, codec_tag, desc, NULL);
947 * gst_pb_utils_get_codec_description:
948 * @caps: the (fixed) #GstCaps for which an format description is needed
950 * Returns a localised (as far as this is possible) string describing the
951 * media format specified in @caps, for use in error dialogs or other messages
952 * to be seen by the user. Should never return NULL unless @caps is invalid.
954 * Also see the convenience function
955 * gst_pb_utils_add_codec_description_to_tag_list().
957 * Returns: a newly-allocated description string, or NULL on error. Free
958 * string with g_free() when not needed any longer.
961 gst_pb_utils_get_codec_description (const GstCaps * caps)
963 const FormatInfo *info;
967 g_return_val_if_fail (caps != NULL, NULL);
968 g_return_val_if_fail (GST_IS_CAPS (caps), NULL);
969 tmp = copy_and_clean_caps (caps);
970 g_return_val_if_fail (gst_caps_is_fixed (tmp), NULL);
972 info = find_format_info (tmp);
975 str = format_info_get_desc (info, tmp);
977 str = gst_caps_to_string (tmp);
979 /* cut off everything after the media type, if there is anything */
980 if ((comma = strchr (str, ','))) {
983 /* we could do something more elaborate here, like taking into account
984 * audio/, video/, image/ and application/ prefixes etc. */
987 GST_WARNING ("No description available for media type: %s", str);
989 gst_caps_unref (tmp);
996 gst_pb_utils_list_all (void)
1000 g_print ("static const gchar *caps_strings[] = { ");
1002 for (i = 0; i < G_N_ELEMENTS (formats); ++i) {
1003 if (formats[i].desc != NULL)
1004 g_print (" \"%s\", ", formats[i].type);
1006 g_print ("\n#if 0\n");
1007 for (i = 0; i < G_N_ELEMENTS (formats); ++i) {
1008 if (formats[i].desc == NULL)
1009 g_print (" \"%s\", \n", formats[i].type);
1011 g_print ("\n#endif\n");