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mpegts: Handle when iconv doesn't support ISO 6937

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Systems like musl libc don't support ISO 6937 in iconv.  This ensures
that the MPEG-TS plugin can cope with that.  There is existing support
in the plugin for other methods, so it seems to have been the original
intent anyway.

Fixes: #1314
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3245>
This commit is contained in:
A. Wilcox 2022-10-21 22:46:16 -05:00 committed by GStreamer Marge Bot
parent 6a2a5fd44c
commit f4bdc79a07
2 changed files with 41 additions and 20 deletions
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3
subprojects/gst-plugins-bad/gst-libs/gst/mpegts/gstmpegtsdescriptor.c
View file

@ -296,7 +296,7 @@ guint8 *
dvb_text_from_utf8 (const gchar * text, gsize * out_size)
{
GError *error = NULL;
gchar *out_text;
gchar *out_text = NULL;
guint8 *out_buffer;
guint encoding;
GIConv giconv = (GIConv) - 1;
@ -304,6 +304,7 @@ dvb_text_from_utf8 (const gchar * text, gsize * out_size)
/* We test character maps one-by-one. Start with the default */
encoding = _ICONV_ISO6937;
giconv = _get_iconv (_ICONV_UTF8, encoding);
if (giconv != (GIConv) - 1)
out_text = g_convert_with_iconv (text, -1, giconv, NULL, out_size, &error);
if (out_text) {

20
subprojects/gst-plugins-bad/tests/check/libs/mpegts.c
View file

@ -71,6 +71,16 @@ static const guint8 stt_data_check[] = {
0xc0, 0x00, 0xc4, 0x86, 0x56, 0xa5
};
static gboolean
_has_iso6937_iconv (void)
{
gboolean supported;
GIConv test = g_iconv_open ("iso6937", "utf-8");
supported = (test != (GIConv) - 1);
g_iconv_close (test);
return supported;
}
GST_START_TEST (test_scte_sit)
{
GstMpegtsSCTESIT *sit;
@ -397,11 +407,13 @@ GST_START_TEST (test_mpegts_nit)
fail_if (data == NULL);
if (_has_iso6937_iconv ()) {
for (i = 0; i < data_size; i++) {
if (data[i] != nit_data_check[i])
fail ("0x%X != 0x%X in byte %d of NIT section", data[i],
nit_data_check[i], i);
}
}
/* Check assertion on bad CRC. Reset parsed data, and make the CRC corrupt */
nit_section->data[nit_section->section_length - 1]++;
@ -486,11 +498,13 @@ GST_START_TEST (test_mpegts_sdt)
fail_if (data == NULL);
if (_has_iso6937_iconv ()) {
for (i = 0; i < data_size; i++) {
if (data[i] != sdt_data_check[i])
fail ("0x%X != 0x%X in byte %d of SDT section", data[i],
sdt_data_check[i], i);
}
}
/* Check assertion on bad CRC. Reset parsed data, and make the CRC corrupt */
sdt_section->data[sdt_section->section_length - 1]++;
@ -594,14 +608,17 @@ GST_START_TEST (test_mpegts_dvb_descriptors)
/* Check creation of descriptor */
desc = gst_mpegts_descriptor_from_dvb_network_name ("Name");
fail_if (desc == NULL);
if (_has_iso6937_iconv ())
fail_unless (desc->length == 4);
fail_unless (desc->tag == 0x40);
if (_has_iso6937_iconv ()) {
for (i = 0; i < 6; i++) {
if (desc->data[i] != network_name_descriptor[i])
fail ("0x%X != 0x%X in byte %d of network name descriptor",
desc->data[i], network_name_descriptor[i], i);
}
}
/* Check parsing of descriptor */
ret = gst_mpegts_descriptor_parse_dvb_network_name (desc, &string);
@ -623,14 +640,17 @@ GST_START_TEST (test_mpegts_dvb_descriptors)
desc = gst_mpegts_descriptor_from_dvb_service
(GST_DVB_SERVICE_DIGITAL_TELEVISION, "Name", "Provider");
fail_if (desc == NULL);
if (_has_iso6937_iconv ())
fail_unless (desc->length == 15);
fail_unless (desc->tag == 0x48);
if (_has_iso6937_iconv ()) {
for (i = 0; i < 17; i++) {
if (desc->data[i] != service_descriptor[i])
fail ("0x%X != 0x%X in byte %d of service descriptor",
desc->data[i], service_descriptor[i], i);
}
}
/* Check parsing of descriptor with data */
ret = gst_mpegts_descriptor_parse_dvb_service