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mxftypes: Check for the existence of all required fields

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According to SMPTE ST 377-1:2019

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7626>
This commit is contained in:
Vivia Nikolaidou 2024-10-09 16:25:05 +03:00 committed by GStreamer Marge Bot
parent 7cc16b64b7
commit 1b81c9ca87
1 changed files with 11 additions and 0 deletions
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11
subprojects/gst-plugins-bad/gst/mxf/mxftypes.c
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@ -1064,6 +1064,7 @@ mxf_index_table_segment_parse (const MXFUL * ul,
#endif #endif
guint16 tag, tag_size; guint16 tag, tag_size;
const guint8 *tag_data; const guint8 *tag_data;
guint8 found_bitset = 0;
g_return_val_if_fail (ul != NULL, FALSE); g_return_val_if_fail (ul != NULL, FALSE);
@ -1090,12 +1091,14 @@ mxf_index_table_segment_parse (const MXFUL * ul,
memcpy (&segment->instance_id, tag_data, 16); memcpy (&segment->instance_id, tag_data, 16);
GST_DEBUG (" instance id = %s", GST_DEBUG (" instance id = %s",
mxf_uuid_to_string (&segment->instance_id, str)); mxf_uuid_to_string (&segment->instance_id, str));
found_bitset |= 1;
break; break;
case 0x3f0b: case 0x3f0b:
if (!mxf_fraction_parse (&segment->index_edit_rate, tag_data, tag_size)) if (!mxf_fraction_parse (&segment->index_edit_rate, tag_data, tag_size))
goto error; goto error;
GST_DEBUG (" index edit rate = %d/%d", segment->index_edit_rate.n, GST_DEBUG (" index edit rate = %d/%d", segment->index_edit_rate.n,
segment->index_edit_rate.d); segment->index_edit_rate.d);
found_bitset |= 2;
break; break;
case 0x3f0c: case 0x3f0c:
if (tag_size != 8) if (tag_size != 8)
@ -1103,6 +1106,7 @@ mxf_index_table_segment_parse (const MXFUL * ul,
segment->index_start_position = GST_READ_UINT64_BE (tag_data); segment->index_start_position = GST_READ_UINT64_BE (tag_data);
GST_DEBUG (" index start position = %" G_GINT64_FORMAT, GST_DEBUG (" index start position = %" G_GINT64_FORMAT,
segment->index_start_position); segment->index_start_position);
found_bitset |= 4;
break; break;
case 0x3f0d: case 0x3f0d:
if (tag_size != 8) if (tag_size != 8)
@ -1110,6 +1114,7 @@ mxf_index_table_segment_parse (const MXFUL * ul,
segment->index_duration = GST_READ_UINT64_BE (tag_data); segment->index_duration = GST_READ_UINT64_BE (tag_data);
GST_DEBUG (" index duration = %" G_GINT64_FORMAT, GST_DEBUG (" index duration = %" G_GINT64_FORMAT,
segment->index_duration); segment->index_duration);
found_bitset |= 8;
break; break;
case 0x3f05: case 0x3f05:
if (tag_size != 4) if (tag_size != 4)
@ -1129,6 +1134,7 @@ mxf_index_table_segment_parse (const MXFUL * ul,
goto error; goto error;
segment->body_sid = GST_READ_UINT32_BE (tag_data); segment->body_sid = GST_READ_UINT32_BE (tag_data);
GST_DEBUG (" body sid = %u", segment->body_sid); GST_DEBUG (" body sid = %u", segment->body_sid);
found_bitset |= 16;
break; break;
case 0x3f08: case 0x3f08:
if (tag_size != 1) if (tag_size != 1)
@ -1275,6 +1281,11 @@ mxf_index_table_segment_parse (const MXFUL * ul,
} }
} }
if (found_bitset != 31) {
GST_WARNING ("Not all required fields present");
goto error;
}
/* If edit unit byte count is 0 there *must* be entries */ /* If edit unit byte count is 0 there *must* be entries */
if (segment->edit_unit_byte_count == 0 && segment->n_index_entries == 0) { if (segment->edit_unit_byte_count == 0 && segment->n_index_entries == 0) {
GST_WARNING GST_WARNING