---
libavformat/mxfenc.c | 88 +++++++++++++++++++++++++++++++++++++++++------
tests/ref/lavf/mxf | 6 ++--
tests/ref/lavf/mxf_d10 | 2 +-
tests/ref/lavf/mxf_opatom | 2 +-
4 files changed, 82 insertions(+), 16 deletions(-)
diff --git a/libavformat/mxfenc.c b/libavformat/mxfenc.c
index dfa647d..206fcfe 100644
--- a/libavformat/mxfenc.c
+++ b/libavformat/mxfenc.c
@@ -624,14 +624,44 @@ static void mxf_write_preface(AVFormatContext *s)
}
/*
- * Write a local tag containing an ascii string as utf-16
+ * Returns the length of the UTF-16 string, in 16-bit characters, that would
result
+ * from decoding the utf-8 string.
+ */
+static uint64_t mxf_utf16len(const char *utf8_str)
+{
+ const uint8_t *q = utf8_str;
+ uint64_t size = 0;
+ while (*q) {
+ uint32_t ch;
+ GET_UTF8(ch, *q++, goto invalid;)
+ if (ch < 0x10000)
+ size++;
+ else
+ size += 2;
+ continue;
+invalid:
+ av_log(NULL, AV_LOG_ERROR, "Invaid UTF8 sequence in mxf_utf16len\n\n");
+ }
+ size += 1;
+ return size;
+}
+
+/*
+ * Returns the calculated length a local tag containing an utf-8 string as
utf-16
+ */
+static uint64_t mxf_utf16_local_tag_length(const char *utf8_str)
+{
+ return utf8_str? 4 + mxf_utf16len(utf8_str) * 2: 0;
+}
+
+/*
+ * Write a local tag containing an utf-8 string as utf-16
*/
static void mxf_write_local_tag_utf16(AVIOContext *pb, int tag, const char
*value)
{
- int i, size = strlen(value);
+ int size = mxf_utf16len(value);
mxf_write_local_tag(pb, size*2, tag);
- for (i = 0; i < size; i++)
- avio_wb16(pb, value[i]);
+ avio_put_str16be(pb, value);
}
static void mxf_write_identification(AVFormatContext *s)
@@ -648,7 +678,9 @@ static void mxf_write_identification(AVFormatContext *s)
version = s->flags & AVFMT_FLAG_BITEXACT ?
"0.0.0" : AV_STRINGIFY(LIBAVFORMAT_VERSION);
- length = 84 + (strlen(company)+strlen(product)+strlen(version))*2; //
utf-16
+ length = 72 + mxf_utf16_local_tag_length(company) +
+ mxf_utf16_local_tag_length(product) +
+ mxf_utf16_local_tag_length(version);
klv_encode_ber_length(pb, length);
// write uid
@@ -659,7 +691,6 @@ static void mxf_write_identification(AVFormatContext *s)
// write generation uid
mxf_write_local_tag(pb, 16, 0x3C09);
mxf_write_uuid(pb, Identification, 1);
-
mxf_write_local_tag_utf16(pb, 0x3C01, company); // Company Name
mxf_write_local_tag_utf16(pb, 0x3C02, product); // Product Name
mxf_write_local_tag_utf16(pb, 0x3C04, version); // Version String
@@ -1092,20 +1123,29 @@ static void
mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st)
mxf_write_generic_sound_common(s, st, mxf_generic_sound_descriptor_key, 0);
}
-static void mxf_write_package(AVFormatContext *s, enum MXFMetadataSetType type)
+static void mxf_write_package(AVFormatContext *s, enum MXFMetadataSetType
type, const char *package_name)
{
MXFContext *mxf = s->priv_data;
AVIOContext *pb = s->pb;
int i, track_count = s->nb_streams+1;
+ uint64_t name_size = 0;
+
+ if (package_name)
+ name_size = mxf_utf16_local_tag_length(package_name);
+
+ if (name_size >= INT16_MAX){
+ av_log(s, AV_LOG_WARNING, "package name size %"PRIx64" invalid (too
large), ignoring\n", name_size);
+ name_size = 0;
+ }
if (type == MaterialPackage) {
mxf_write_metadata_key(pb, 0x013600);
PRINT_KEY(s, "Material Package key", pb->buf_ptr - 16);
- klv_encode_ber_length(pb, 92 + 16*track_count);
+ klv_encode_ber_length(pb, 92 + name_size + (16*track_count));
} else {
mxf_write_metadata_key(pb, 0x013700);
PRINT_KEY(s, "Source Package key", pb->buf_ptr - 16);
- klv_encode_ber_length(pb, 112 + 16*track_count); // 20 bytes length
for descriptor reference
+ klv_encode_ber_length(pb, 112 + name_size + (16*track_count)); // 20
bytes length for descriptor reference
}
// write uid
@@ -1119,6 +1159,10 @@ static void mxf_write_package(AVFormatContext *s, enum
MXFMetadataSetType type)
mxf_write_umid(s, type == SourcePackage);
PRINT_KEY(s, "package umid second part", pb->buf_ptr - 16);
+ // package name
+ if (name_size)
+ mxf_write_local_tag_utf16(pb, 0x4402, package_name);
+
// package creation date
mxf_write_local_tag(pb, 8, 0x4405);
avio_wb64(pb, mxf->timestamp);
@@ -1187,11 +1231,33 @@ static int
mxf_write_essence_container_data(AVFormatContext *s)
static int mxf_write_header_metadata_sets(AVFormatContext *s)
{
+ const char *material_package_name = NULL;
+ const char *file_package_name = NULL;
+ AVDictionaryEntry *entry = NULL;
+ AVStream *st = NULL;
+ int i;
+
+ if (entry = av_dict_get(s->metadata, "material_package_name", NULL, 0))
+ material_package_name = entry->value;
+
+ if (entry = av_dict_get(s->metadata, "file_package_name", NULL, 0)) {
+ file_package_name = entry->value;
+ } else {
+ /* check if any of the streams contain a file_package_name */
+ for (i = 0; i < s->nb_streams; i++) {
+ st = s->streams[i];
+ if (entry = av_dict_get(st->metadata, "file_package_name", NULL,
0)) {
+ file_package_name = entry->value;
+ break;
+ }
+ }
+ }
+
mxf_write_preface(s);
mxf_write_identification(s);
mxf_write_content_storage(s);
- mxf_write_package(s, MaterialPackage);
- mxf_write_package(s, SourcePackage);
+ mxf_write_package(s, MaterialPackage, material_package_name);
+ mxf_write_package(s, SourcePackage, file_package_name);
mxf_write_essence_container_data(s);
return 0;
}
diff --git a/tests/ref/lavf/mxf b/tests/ref/lavf/mxf
index 236661c..38db9ac 100644
--- a/tests/ref/lavf/mxf
+++ b/tests/ref/lavf/mxf
@@ -1,9 +1,9 @@
-dbc4ced82ef1c2fa4df3571b4f994a22 *./tests/data/lavf/lavf.mxf
+c4eb3fab4d6b24687b81913036c79ce9 *./tests/data/lavf/lavf.mxf
525369 ./tests/data/lavf/lavf.mxf
./tests/data/lavf/lavf.mxf CRC=0xdbfff6f1
-fe4294023cd990938f042c7855405f63 *./tests/data/lavf/lavf.mxf
+54cb97d1fc47c58f5580e8c897ef0874 *./tests/data/lavf/lavf.mxf
560697 ./tests/data/lavf/lavf.mxf
./tests/data/lavf/lavf.mxf CRC=0x11a6178e
-ef0c741e17bf7963fc51adcb6bab8ec8 *./tests/data/lavf/lavf.mxf
+872c48b66705925cb0c6d638c82cd7d4 *./tests/data/lavf/lavf.mxf
525369 ./tests/data/lavf/lavf.mxf
./tests/data/lavf/lavf.mxf CRC=0xdbfff6f1
diff --git a/tests/ref/lavf/mxf_d10 b/tests/ref/lavf/mxf_d10
index ff7d876..7a5e154 100644
--- a/tests/ref/lavf/mxf_d10
+++ b/tests/ref/lavf/mxf_d10
@@ -1,3 +1,3 @@
-87e0903ef7ea55b1a032b9d878588683 *./tests/data/lavf/lavf.mxf_d10
+c92818ebed05077efb27fc47a0351730 *./tests/data/lavf/lavf.mxf_d10
5330989 ./tests/data/lavf/lavf.mxf_d10
./tests/data/lavf/lavf.mxf_d10 CRC=0x6c74d488
diff --git a/tests/ref/lavf/mxf_opatom b/tests/ref/lavf/mxf_opatom
index d62d803..c6c0785 100644
--- a/tests/ref/lavf/mxf_opatom
+++ b/tests/ref/lavf/mxf_opatom
@@ -1,3 +1,3 @@
-8b312335b1af76e0133092c2658cd4a4 *./tests/data/lavf/lavf.mxf_opatom
+17c93938b3d8c61c29caf6ad9ae5f22e *./tests/data/lavf/lavf.mxf_opatom
4716601 ./tests/data/lavf/lavf.mxf_opatom
./tests/data/lavf/lavf.mxf_opatom CRC=0xbdd696b9
--
2.2.1
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