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qtdemux: extract stream language in more cases
The 16-bit language code can be either a packed ISO-639-2T code or a 'Macintosh language code'. Handle the latter type of language codes as well, and map to the matching ISO code. Lastly, fix language code posting for language #0, which is valid and stands for 'English'. Fixes #614001.
This commit is contained in:
Tim-Philipp Müller
parent
e9b267ae02
commit
af5e4d935a
4 changed files with 255 additions and 12 deletions
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@ -10,7 +10,8 @@ libgstqtdemux_la_LIBADD = \
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-lgsttag-@GST_MAJORMINOR@ \
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$(GST_BASE_LIBS) $(GST_LIBS) $(ZLIB_LIBS)
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libgstqtdemux_la_LDFLAGS = ${GST_PLUGIN_LDFLAGS}
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libgstqtdemux_la_SOURCES = quicktime.c gstrtpxqtdepay.c qtdemux.c qtdemux_types.c qtdemux_dump.c
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libgstqtdemux_la_SOURCES = quicktime.c gstrtpxqtdepay.c \
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qtdemux.c qtdemux_types.c qtdemux_dump.c qtdemux_lang.c
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libgstqtdemux_la_LIBTOOLFLAGS = --tag=disable-static
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noinst_HEADERS = \
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@ -19,5 +20,6 @@ noinst_HEADERS = \
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qtdemux_types.h \
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qtdemux_dump.h \
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qtdemux_fourcc.h \
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qtdemux_lang.h \
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qtpalette.h \
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gstrtpxqtdepay.h
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@ -55,6 +55,7 @@
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#include "qtdemux_types.h"
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#include "qtdemux_dump.h"
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#include "qtdemux_fourcc.h"
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#include "qtdemux_lang.h"
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#include "qtdemux.h"
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#include "qtpalette.h"
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@ -200,8 +201,7 @@ struct _QtDemuxStream
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guint32 timescale;
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/* language */
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guint lang_code;
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gchar lang_id[4]; /* in ISO 639-2 */
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gchar lang_id[4]; /* ISO 639-2T language code */
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/* our samples */
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guint32 n_samples;
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@ -5037,6 +5037,7 @@ qtdemux_parse_trak (GstQTDemux * qtdemux, GNode * trak)
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GstTagList *list = NULL;
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gchar *codec = NULL;
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const guint8 *stsd_data;
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guint16 lang_code; /* quicktime lang code or packed iso code */
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guint32 version;
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guint32 tkhd_flags = 0;
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guint8 tkhd_version = 0;
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@ -5080,26 +5081,30 @@ qtdemux_parse_trak (GstQTDemux * qtdemux, GNode * trak)
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goto corrupt_file;
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stream->timescale = QT_UINT32 ((guint8 *) mdhd->data + 28);
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stream->duration = QT_UINT64 ((guint8 *) mdhd->data + 32);
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stream->lang_code = QT_UINT16 ((guint8 *) mdhd->data + 36);
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lang_code = QT_UINT16 ((guint8 *) mdhd->data + 36);
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} else {
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if (len < 30)
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goto corrupt_file;
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stream->timescale = QT_UINT32 ((guint8 *) mdhd->data + 20);
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stream->duration = QT_UINT32 ((guint8 *) mdhd->data + 24);
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stream->lang_code = QT_UINT16 ((guint8 *) mdhd->data + 28);
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lang_code = QT_UINT16 ((guint8 *) mdhd->data + 28);
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}
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stream->lang_id[0] = 0x60 + ((stream->lang_code >> 10) & 0x1F);
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stream->lang_id[1] = 0x60 + ((stream->lang_code >> 5) & 0x1F);
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stream->lang_id[2] = 0x60 + (stream->lang_code & 0x1F);
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stream->lang_id[3] = 0;
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if (lang_code < 0x800) {
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qtdemux_lang_map_qt_code_to_iso (stream->lang_id, lang_code);
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} else {
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stream->lang_id[0] = 0x60 + ((lang_code >> 10) & 0x1F);
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stream->lang_id[1] = 0x60 + ((lang_code >> 5) & 0x1F);
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stream->lang_id[2] = 0x60 + (lang_code & 0x1F);
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stream->lang_id[3] = 0;
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}
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GST_LOG_OBJECT (qtdemux, "track timescale: %" G_GUINT32_FORMAT,
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stream->timescale);
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GST_LOG_OBJECT (qtdemux, "track duration: %" G_GUINT64_FORMAT,
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stream->duration);
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GST_LOG_OBJECT (qtdemux, "track language code/id: 0x%x/%s",
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stream->lang_code, stream->lang_id);
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GST_LOG_OBJECT (qtdemux, "track language code/id: 0x%04x/%s",
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lang_code, stream->lang_id);
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if (G_UNLIKELY (stream->timescale == 0 || qtdemux->timescale == 0))
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goto corrupt_file;
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@ -5950,7 +5955,7 @@ qtdemux_parse_trak (GstQTDemux * qtdemux, GNode * trak)
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goto segments_failed;
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/* add some language tag, if useful */
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if (stream->lang_code && strcmp (stream->lang_id, "unk") &&
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if (stream->lang_id[0] != '\0' && strcmp (stream->lang_id, "unk") &&
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strcmp (stream->lang_id, "und")) {
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const gchar *lang_code;
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205
gst/qtdemux/qtdemux_lang.c
Normal file
205
gst/qtdemux/qtdemux_lang.c
Normal file
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@ -0,0 +1,205 @@
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/* GStreamer Quicktime/ISO demuxer language utility functions
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* Copyright (C) 2010 Tim-Philipp Müller <tim centricular net>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "qtdemux.h"
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#include "qtdemux_lang.h"
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#include <string.h>
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/* http://developer.apple.com/mac/library/documentation/QuickTime/QTFF/QTFFChap4/qtff4.html */
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static const gchar qt_lang_map[][4] = {
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/* 000 English
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* 001 French
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* 002 German
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* 003 Italian
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* 004 Dutch
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* 005 Swedish
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* 006 Spanish
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* 007 Danish
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* 008 Portuguese
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* 009 Norwegian
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*/
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"eng", "fre", "deu", "ita", "nld", "swe", "spa", "dan", "por", "nor",
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/* 010 Hebrew
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* 011 Japanese
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* 012 Arabic
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* 013 Finnish
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* 014 Greek
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* 015 Icelandic
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* 016 Maltese
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* 017 Turkish
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* 018 Croatian
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* 019 Traditional Chinese (ISO 639-2 can't express script differences, so zho)
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*/
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"heb", "jpn", "ara", "fin", "ell", "isl", "mlt", "tur", "hrv", "zho",
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/* 020 Urdu
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* 021 Hindi
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* 022 Thai
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* 023 Korean
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* 024 Lithuanian
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* 025 Polish
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* 026 Hungarian
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* 027 Estonian
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* 028 Latvian / Lettish
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* 029 Lappish / Saamish (used code for Nothern Sami)
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*/
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"urd", "hin", "tha", "kor", "lit", "pol", "hun", "est", "lav", "sme",
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/* 030 Faeroese
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* 031 Farsi
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* 032 Russian
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* 033 Simplified Chinese (ISO 639-2 can't express script differences, so zho)
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* 034 Flemish (no ISO 639-2 code, used Dutch code)
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* 035 Irish
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* 036 Albanian
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* 037 Romanian
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* 038 Czech
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* 039 Slovak
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*/
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"fao", "fas", "rus", "zho", "nld", "gle", "sqi", "ron", "ces", "slk",
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/* 040 Slovenian
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* 041 Yiddish
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* 042 Serbian
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* 043 Macedonian
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* 044 Bulgarian
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* 045 Ukrainian
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* 046 Byelorussian
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* 047 Uzbek
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* 048 Kazakh
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* 049 Azerbaijani
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*/
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"slv", "yid", "srp", "mkd", "bul", "ukr", "bel", "uzb", "kaz", "aze",
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/* 050 AzerbaijanAr (presumably script difference? used aze here)
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* 051 Armenian
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* 052 Georgian
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* 053 Moldavian
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* 054 Kirghiz
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* 055 Tajiki
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* 056 Turkmen
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* 057 Mongolian
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* 058 MongolianCyr (presumably script difference? used mon here)
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* 059 Pashto
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*/
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"aze", "hye", "kat", "mol", "kir", "tgk", "tuk", "mon", "mon", "pus",
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/* 060 Kurdish
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* 061 Kashmiri
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* 062 Sindhi
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* 063 Tibetan
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* 064 Nepali
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* 065 Sanskrit
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* 066 Marathi
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* 067 Bengali
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* 068 Assamese
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* 069 Gujarati
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*/
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"kur", "kas", "snd", "bod", "nep", "san", "mar", "ben", "asm", "guj",
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/* 070 Punjabi
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* 071 Oriya
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* 072 Malayalam
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* 073 Kannada
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* 074 Tamil
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* 075 Telugu
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* 076 Sinhalese
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* 077 Burmese
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* 078 Khmer
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* 079 Lao
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*/
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"pan", "ori", "mal", "kan", "tam", "tel", "sin", "mya", "khm", "lao",
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/* 080 Vietnamese
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* 081 Indonesian
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* 082 Tagalog
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* 083 MalayRoman
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* 084 MalayArabic
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* 085 Amharic
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* 087 Galla (same as Oromo?)
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* 087 Oromo
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* 088 Somali
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* 089 Swahili
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*/
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"vie", "ind", "tgl", "msa", "msa", "amh", "orm", "orm", "som", "swa",
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/* 090 Ruanda
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* 091 Rundi
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* 092 Chewa
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* 093 Malagasy
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* 094 Esperanto
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* 095 ---
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* 096 ---
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* 097 ---
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* 098 ---
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* 099 ---
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*/
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"kin", "run", "nya", "mlg", "ep", "und", "und", "und", "und", "und",
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/* 100-109 ---
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* 110-119 ---
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*/
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"und", "und", "und", "und", "und", "und", "und", "und", "und", "und",
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"und", "und", "und", "und", "und", "und", "und", "und", "und", "und",
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/* 120-127 ---
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* 128 Welsh
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* 129 Basque
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*/
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"und", "und", "und", "und", "und", "und", "und", "und", "cym", "eus",
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/* 130 Catalan
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* 131 Latin
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* 132 Quechua
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* 133 Guarani
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* 134 Aymara
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* 135 Tatar
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* 136 Uighur
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* 137 Dzongkha
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* 138 JavaneseRom
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*/
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"cat", "lat", "que", "grn", "aym", "tat", "uig", "dzo", "jav"
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};
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/* map quicktime language code to ISO-639-2T id, returns "und" if unknown */
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void
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qtdemux_lang_map_qt_code_to_iso (gchar id[4], guint16 qt_lang_code)
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{
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const gchar *iso_code;
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g_assert (qt_lang_code < 0x800);
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if (qt_lang_code < G_N_ELEMENTS (qt_lang_map))
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iso_code = qt_lang_map[qt_lang_code];
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else
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iso_code = "und";
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GST_DEBUG ("mapped quicktime language code %u to ISO 639-2T code '%s'",
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qt_lang_code, iso_code);
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memcpy (id, iso_code, 4);
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g_assert (id[3] == '\0');
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}
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31
gst/qtdemux/qtdemux_lang.h
Normal file
31
gst/qtdemux/qtdemux_lang.h
Normal file
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@ -0,0 +1,31 @@
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/* GStreamer Quicktime/ISO demuxer language utility functions
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* Copyright (C) 2010 Tim-Philipp Müller <tim centricular net>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_QTDEMUX_LANG_H__
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#define __GST_QTDEMUX_LANG_H__
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G_BEGIN_DECLS
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#include <glib.h>
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void qtdemux_lang_map_qt_code_to_iso (gchar id[4], guint16 qt_lang_code);
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G_END_DECLS
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#endif /* __GST_QTDEMUX_LANG_H__ */
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