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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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mpegts: atsc: rename TVCT to VCT as it is the same as CVCT
Make the ATSC section parse handle both TVCT and CVCT as they are nearly the same struct (CVCT uses 2 reserved bits that are ignored in TVCT). This is changing the glib type and the struct name but TVCT wasn't released in a stable package yet so there should be no problem. Also includes some parsing fixes and changes short_name to be directly stored as utf8 rather than utf16 https://bugzilla.gnome.org/show_bug.cgi?id=730642
This commit is contained in:
Thiago Santos
Edward Hervey
parent
a1866ef8c1
commit
8f6a3c0a99
4 changed files with 117 additions and 66 deletions
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@ -34,101 +34,108 @@
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*
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*/
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/* Terrestrial Virtual Channel Table TVCT */
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static GstMpegTsAtscTVCTSource *
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_gst_mpegts_atsc_tvct_source_copy (GstMpegTsAtscTVCTSource * source)
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/* Terrestrial/Cable Virtual Channel Table TVCT/CVCT */
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static GstMpegTsAtscVCTSource *
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_gst_mpegts_atsc_vct_source_copy (GstMpegTsAtscVCTSource * source)
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{
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GstMpegTsAtscTVCTSource *copy;
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GstMpegTsAtscVCTSource *copy;
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copy = g_slice_dup (GstMpegTsAtscTVCTSource, source);
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copy = g_slice_dup (GstMpegTsAtscVCTSource, source);
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copy->descriptors = g_ptr_array_ref (source->descriptors);
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return copy;
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}
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static void
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_gst_mpegts_atsc_tvct_source_free (GstMpegTsAtscTVCTSource * source)
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_gst_mpegts_atsc_vct_source_free (GstMpegTsAtscVCTSource * source)
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{
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if (source->descriptors)
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g_ptr_array_unref (source->descriptors);
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g_slice_free (GstMpegTsAtscTVCTSource, source);
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g_slice_free (GstMpegTsAtscVCTSource, source);
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}
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G_DEFINE_BOXED_TYPE (GstMpegTsAtscTVCTSource, gst_mpegts_atsc_tvct_source,
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(GBoxedCopyFunc) _gst_mpegts_atsc_tvct_source_copy,
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(GFreeFunc) _gst_mpegts_atsc_tvct_source_free);
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G_DEFINE_BOXED_TYPE (GstMpegTsAtscVCTSource, gst_mpegts_atsc_vct_source,
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(GBoxedCopyFunc) _gst_mpegts_atsc_vct_source_copy,
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(GFreeFunc) _gst_mpegts_atsc_vct_source_free);
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static GstMpegTsAtscTVCT *
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_gst_mpegts_atsc_tvct_copy (GstMpegTsAtscTVCT * tvct)
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static GstMpegTsAtscVCT *
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_gst_mpegts_atsc_vct_copy (GstMpegTsAtscVCT * vct)
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{
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GstMpegTsAtscTVCT *copy;
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GstMpegTsAtscVCT *copy;
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copy = g_slice_dup (GstMpegTsAtscTVCT, tvct);
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copy->sources = g_ptr_array_ref (tvct->sources);
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copy->descriptors = g_ptr_array_ref (tvct->descriptors);
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copy = g_slice_dup (GstMpegTsAtscVCT, vct);
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copy->sources = g_ptr_array_ref (vct->sources);
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copy->descriptors = g_ptr_array_ref (vct->descriptors);
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return copy;
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}
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static void
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_gst_mpegts_atsc_tvct_free (GstMpegTsAtscTVCT * tvct)
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_gst_mpegts_atsc_vct_free (GstMpegTsAtscVCT * vct)
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{
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g_ptr_array_unref (tvct->sources);
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if (tvct->descriptors)
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g_ptr_array_unref (tvct->descriptors);
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g_slice_free (GstMpegTsAtscTVCT, tvct);
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if (vct->sources)
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g_ptr_array_unref (vct->sources);
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if (vct->descriptors)
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g_ptr_array_unref (vct->descriptors);
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g_slice_free (GstMpegTsAtscVCT, vct);
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}
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G_DEFINE_BOXED_TYPE (GstMpegTsAtscTVCT, gst_mpegts_atsc_tvct,
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(GBoxedCopyFunc) _gst_mpegts_atsc_tvct_copy,
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(GFreeFunc) _gst_mpegts_atsc_tvct_free);
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G_DEFINE_BOXED_TYPE (GstMpegTsAtscVCT, gst_mpegts_atsc_vct,
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(GBoxedCopyFunc) _gst_mpegts_atsc_vct_copy,
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(GFreeFunc) _gst_mpegts_atsc_vct_free);
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static gpointer
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_parse_atsc_tvct (GstMpegTsSection * section)
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_parse_atsc_vct (GstMpegTsSection * section)
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{
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GstMpegTsAtscTVCT *tvct = NULL;
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GstMpegTsAtscVCT *vct = NULL;
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guint8 *data, *end, source_nb;
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guint32 tmp32;
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guint16 descriptors_loop_length, tmp16;
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guint i;
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GError *err = NULL;
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tvct = g_slice_new0 (GstMpegTsAtscTVCT);
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vct = g_slice_new0 (GstMpegTsAtscVCT);
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data = section->data;
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end = data + section->section_length;
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tvct->transport_stream_id = section->subtable_extension;
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vct->transport_stream_id = section->subtable_extension;
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/* Skip already parsed data */
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data += 8;
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/* minimum size */
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if (data - end < 2 + 2 + 4)
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if (end - data < 2 + 2 + 4)
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goto error;
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tvct->protocol_version = *data;
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vct->protocol_version = *data;
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data += 1;
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source_nb = *data;
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data += 1;
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tvct->sources = g_ptr_array_new_full (source_nb,
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(GDestroyNotify) _gst_mpegts_atsc_tvct_source_free);
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vct->sources = g_ptr_array_new_full (source_nb,
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(GDestroyNotify) _gst_mpegts_atsc_vct_source_free);
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for (i = 0; i < source_nb; i++) {
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GstMpegTsAtscTVCTSource *source;
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GstMpegTsAtscVCTSource *source;
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/* minimum 32 bytes for a entry, 2 bytes second descriptor
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loop-length, 4 bytes crc */
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if (end - data < 32 + 2 + 4)
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goto error;
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source = g_slice_new0 (GstMpegTsAtscTVCTSource);
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g_ptr_array_add (tvct->sources, source);
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source = g_slice_new0 (GstMpegTsAtscVCTSource);
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g_ptr_array_add (vct->sources, source);
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/* FIXME: 7 utf16 charater
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GST_READ_UINT16_BE x 7 or extern method ? */
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source->short_name = g_memdup (data, 14);
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source->short_name =
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g_convert ((gchar *) data, 14, "utf-8", "utf-16be", NULL, NULL, &err);
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if (err) {
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GST_WARNING ("Failed to convert VCT Source short_name to utf-8: %d %s",
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err->code, err->message);
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GST_MEMDUMP ("UTF-16 string", data, 14);
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g_error_free (err);
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}
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data += 14;
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tmp32 = GST_READ_UINT32_BE (data);
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@ -150,7 +157,12 @@ _parse_atsc_tvct (GstMpegTsSection * section)
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source->ETM_location = (tmp16 >> 14) & 0x3;
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source->access_controlled = (tmp16 >> 13) & 0x1;
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source->hidden = (tmp16 >> 12) & 0x1;
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source->hide_guide = (tmp16 >> 10) & 0x1;
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/* only used in CVCT */
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source->path_select = (tmp16 >> 11) & 0x1;
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source->out_of_band = (tmp16 >> 10) & 0x1;
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source->hide_guide = (tmp16 >> 9) & 0x1;
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source->service_type = tmp16 & 0x3f;
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data += 2;
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@ -176,17 +188,17 @@ _parse_atsc_tvct (GstMpegTsSection * section)
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if (end - data < descriptors_loop_length + 4)
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goto error;
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tvct->descriptors =
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vct->descriptors =
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gst_mpegts_parse_descriptors (data, descriptors_loop_length);
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if (tvct->descriptors == NULL)
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if (vct->descriptors == NULL)
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goto error;
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data += descriptors_loop_length;
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return (gpointer) tvct;
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return (gpointer) vct;
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error:
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if (tvct)
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_gst_mpegts_atsc_tvct_free (tvct);
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if (vct)
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_gst_mpegts_atsc_vct_free (vct);
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return NULL;
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}
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@ -195,12 +207,12 @@ error:
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* gst_mpegts_section_get_atsc_tvct:
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* @section: a #GstMpegTsSection of type %GST_MPEGTS_SECTION_ATSC_TVCT
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*
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* Returns the #GstMpegTsAtscTVCT contained in the @section
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* Returns the #GstMpegTsAtscVCT contained in the @section
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*
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* Returns: The #GstMpegTsAtscTVCT contained in the section, or %NULL if an error
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* Returns: The #GstMpegTsAtscVCT contained in the section, or %NULL if an error
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* happened.
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*/
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const GstMpegTsAtscTVCT *
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const GstMpegTsAtscVCT *
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gst_mpegts_section_get_atsc_tvct (GstMpegTsSection * section)
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{
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g_return_val_if_fail (section->section_type == GST_MPEGTS_SECTION_ATSC_TVCT,
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@ -209,8 +221,32 @@ gst_mpegts_section_get_atsc_tvct (GstMpegTsSection * section)
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if (!section->cached_parsed)
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section->cached_parsed =
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__common_section_checks (section, 16, _parse_atsc_tvct,
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(GDestroyNotify) _gst_mpegts_atsc_tvct_free);
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__common_section_checks (section, 16, _parse_atsc_vct,
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(GDestroyNotify) _gst_mpegts_atsc_vct_free);
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return (const GstMpegTsAtscTVCT *) section->cached_parsed;
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return (const GstMpegTsAtscVCT *) section->cached_parsed;
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}
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/**
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* gst_mpegts_section_get_atsc_cvct:
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* @section: a #GstMpegTsSection of type %GST_MPEGTS_SECTION_ATSC_CVCT
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*
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* Returns the #GstMpegTsAtscVCT contained in the @section
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*
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* Returns: The #GstMpegTsAtscVCT contained in the section, or %NULL if an error
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* happened.
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*/
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const GstMpegTsAtscVCT *
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gst_mpegts_section_get_atsc_cvct (GstMpegTsSection * section)
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{
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g_return_val_if_fail (section->section_type == GST_MPEGTS_SECTION_ATSC_CVCT,
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NULL);
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g_return_val_if_fail (section->cached_parsed || section->data, NULL);
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if (!section->cached_parsed)
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section->cached_parsed =
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__common_section_checks (section, 16, _parse_atsc_vct,
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(GDestroyNotify) _gst_mpegts_atsc_vct_free);
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return (const GstMpegTsAtscVCT *) section->cached_parsed;
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}
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@ -66,21 +66,21 @@ typedef enum {
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GST_MTS_TABLE_ID_ATSC_SATELLITE_VIRTUAL_CHANNEL = 0xDA,
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} GstMpegTsSectionATSCTableID;
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/* TVCT */
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#define GST_TYPE_MPEGTS_ATSC_TVCT (gst_mpegts_atsc_tvct_get_type ())
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#define GST_TYPE_MPEGTS_ATSC_TVCT_SOURCE (gst_mpegts_atsc_tvct_source_get_type ())
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/* TVCT/CVCT */
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#define GST_TYPE_MPEGTS_ATSC_VCT (gst_mpegts_atsc_vct_get_type ())
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#define GST_TYPE_MPEGTS_ATSC_VCT_SOURCE (gst_mpegts_atsc_vct_source_get_type ())
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typedef struct _GstMpegTsAtscTVCTSource GstMpegTsAtscTVCTSource;
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typedef struct _GstMpegTsAtscTVCT GstMpegTsAtscTVCT;
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typedef struct _GstMpegTsAtscVCTSource GstMpegTsAtscVCTSource;
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typedef struct _GstMpegTsAtscVCT GstMpegTsAtscVCT;
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/**
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* GstMpegTsAtscTVCTSource:
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* GstMpegTsAtscVCTSource:
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*
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* Source from a @GstMpegTsAtscTVCT
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* Source from a @GstMpegTsAtscVCT, can be used both for TVCT and CVCT tables
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*/
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struct _GstMpegTsAtscTVCTSource
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struct _GstMpegTsAtscVCTSource
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{
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gunichar2 *short_name;
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gchar *short_name;
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guint16 major_channel_number;
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guint16 minor_channel_number;
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guint8 modulation_mode;
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@ -91,6 +91,8 @@ struct _GstMpegTsAtscTVCTSource
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guint8 ETM_location;
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gboolean access_controlled;
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gboolean hidden;
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gboolean path_select; /* CVCT only - reserved bit in TVCT */
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gboolean out_of_band; /* CVCT only - reserved bit in TVCT */
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gboolean hide_guide;
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/* FIXME: */
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guint8 service_type;
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@ -99,12 +101,14 @@ struct _GstMpegTsAtscTVCTSource
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};
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/**
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* GstMpegTsAtscTVCT:
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* GstMpegTsAtscVCT:
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*
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* Terrestrial Virtual Channel Table (A65)
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* Represents both:
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* Terrestrial Virtual Channel Table (A65)
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* Cable Virtual Channel Table (A65)
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*
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*/
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struct _GstMpegTsAtscTVCT
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struct _GstMpegTsAtscVCT
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{
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guint16 transport_stream_id;
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guint8 protocol_version;
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@ -112,10 +116,11 @@ struct _GstMpegTsAtscTVCT
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GPtrArray *descriptors;
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};
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GType gst_mpegts_atsc_tvct_get_type (void);
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GType gst_mpegts_atsc_tvct_source_get_type (void);
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GType gst_mpegts_atsc_vct_get_type (void);
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GType gst_mpegts_atsc_vct_source_get_type (void);
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const GstMpegTsAtscTVCT * gst_mpegts_section_get_atsc_tvct (GstMpegTsSection * section);
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const GstMpegTsAtscVCT * gst_mpegts_section_get_atsc_tvct (GstMpegTsSection * section);
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const GstMpegTsAtscVCT * gst_mpegts_section_get_atsc_cvct (GstMpegTsSection * section);
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G_END_DECLS
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@ -1048,6 +1048,14 @@ _identify_section (guint16 pid, guint8 table_id)
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if (pid == 0x0014)
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return GST_MPEGTS_SECTION_TOT;
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break;
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case GST_MTS_TABLE_ID_ATSC_TERRESTRIAL_VIRTUAL_CHANNEL:
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if (pid == 0x1ffb)
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return GST_MPEGTS_SECTION_ATSC_TVCT;
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break;
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case GST_MTS_TABLE_ID_ATSC_CABLE_VIRTUAL_CHANNEL:
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if (pid == 0x1ffb)
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return GST_MPEGTS_SECTION_ATSC_CVCT;
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break;
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/* FIXME : FILL */
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default:
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/* Handle ranges */
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@ -52,6 +52,7 @@ GType gst_mpegts_section_get_type (void);
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* @GST_MPEGTS_SECTION_TDT: Time and Date Table (EN 300 468)
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* @GST_MPEGTS_SECTION_TOT: Time Offset Table (EN 300 468)
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* @GST_MPEGTS_SECTION_ATSC_TVCT: ATSC Terrestrial Virtual Channel Table (A65)
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* @GST_MPEGTS_SECTION_ATSC_CVCT: ATSC Cable Virtual Channel Table (A65)
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*
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* Types of #GstMpegTsSection that the library handles.
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*/
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@ -67,7 +68,8 @@ typedef enum {
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GST_MPEGTS_SECTION_SDT,
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GST_MPEGTS_SECTION_TDT,
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GST_MPEGTS_SECTION_TOT,
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GST_MPEGTS_SECTION_ATSC_TVCT
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GST_MPEGTS_SECTION_ATSC_TVCT,
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GST_MPEGTS_SECTION_ATSC_CVCT
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} GstMpegTsSectionType;
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/**
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