//#define DEBUG
#include "avformat.h"
+#include "aes.h"
+#include "bytestream.h"
typedef uint8_t UID[16];
MultipleDescriptor,
Descriptor,
Track,
- EssenceContainerData,
+ CryptoContext,
};
-typedef struct MXFStructuralComponent {
+typedef struct {
+ UID uid;
+ enum MXFMetadataSetType type;
+ UID context_uid;
+ UID source_container_ul;
+} MXFCryptoContext;
+
+typedef struct {
UID uid;
enum MXFMetadataSetType type;
UID source_package_uid;
int source_track_id;
} MXFStructuralComponent;
-typedef struct MXFSequence {
+typedef struct {
UID uid;
enum MXFMetadataSetType type;
UID data_definition_ul;
int64_t duration;
} MXFSequence;
-typedef struct MXFTrack {
+typedef struct {
UID uid;
enum MXFMetadataSetType type;
MXFSequence *sequence; /* mandatory, and only one */
AVRational edit_rate;
} MXFTrack;
-typedef struct MXFDescriptor {
+typedef struct {
UID uid;
enum MXFMetadataSetType type;
UID essence_container_ul;
int extradata_size;
} MXFDescriptor;
-typedef struct MXFPackage {
+typedef struct {
UID uid;
enum MXFMetadataSetType type;
UID package_uid;
UID descriptor_ref;
} MXFPackage;
-typedef struct MXFEssenceContainerData {
- UID uid;
- enum MXFMetadataSetType type;
- UID linked_package_uid;
-} MXFEssenceContainerData;
-
typedef struct {
UID uid;
enum MXFMetadataSetType type;
} MXFMetadataSet;
-typedef struct MXFContext {
+typedef struct {
UID *packages_refs;
int packages_count;
- UID *essence_container_data_sets_refs;
- int essence_container_data_sets_count;
MXFMetadataSet **metadata_sets;
int metadata_sets_count;
- const uint8_t *sync_key;
AVFormatContext *fc;
+ struct AVAES *aesc;
} MXFContext;
-typedef struct KLVPacket {
+typedef struct {
UID key;
offset_t offset;
uint64_t length;
Clip,
};
-typedef struct MXFCodecUL {
+typedef struct {
UID uid;
enum CodecID id;
enum MXFWrappingScheme wrapping;
} MXFCodecUL;
-typedef struct MXFDataDefinitionUL {
+typedef struct {
UID uid;
enum CodecType type;
} MXFDataDefinitionUL;
-typedef struct MXFMetadataReadTableEntry {
+typedef struct {
const UID key;
int (*read)();
int ctx_size;
/* partial keys to match */
static const uint8_t mxf_header_partition_pack_key[] = { 0x06,0x0e,0x2b,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x02 };
static const uint8_t mxf_essence_element_key[] = { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01 };
+static const uint8_t mxf_klv_key[] = { 0x06,0x0e,0x2b,0x34 };
/* complete keys to match */
static const uint8_t mxf_encrypted_triplet_key[] = { 0x06,0x0e,0x2b,0x34,0x02,0x04,0x01,0x07,0x0d,0x01,0x03,0x01,0x02,0x7e,0x01,0x00 };
+static const uint8_t mxf_encrypted_essence_container[] = { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x07,0x0d,0x01,0x03,0x01,0x02,0x0b,0x01,0x00 };
#define IS_KLV_KEY(x, y) (!memcmp(x, y, sizeof(y)))
-#define PRINT_KEY(s, x) dprintf("%s %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X\n", s, \
+#define PRINT_KEY(pc, s, x) dprintf(pc, "%s %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X\n", s, \
(x)[0], (x)[1], (x)[2], (x)[3], (x)[4], (x)[5], (x)[6], (x)[7], (x)[8], (x)[9], (x)[10], (x)[11], (x)[12], (x)[13], (x)[14], (x)[15])
static int64_t klv_decode_ber_length(ByteIOContext *pb)
return size;
}
+static int mxf_read_sync(ByteIOContext *pb, const uint8_t *key, unsigned size)
+{
+ int i, b;
+ for (i = 0; i < size && !url_feof(pb); i++) {
+ b = get_byte(pb);
+ if (b == key[0])
+ i = 0;
+ else if (b != key[i])
+ i = -1;
+ }
+ return i == size;
+}
+
static int klv_read_packet(KLVPacket *klv, ByteIOContext *pb)
{
- klv->offset = url_ftell(pb);
- get_buffer(pb, klv->key, 16);
+ if (!mxf_read_sync(pb, mxf_klv_key, 4))
+ return -1;
+ klv->offset = url_ftell(pb) - 4;
+ memcpy(klv->key, mxf_klv_key, 4);
+ get_buffer(pb, klv->key + 4, 12);
klv->length = klv_decode_ber_length(pb);
return klv->length == -1 ? -1 : 0;
}
{
uint8_t buffer[61444];
uint8_t *buf_ptr, *end_ptr, *data_ptr;
+ int i;
if (length > 61444) /* worst case PAL 1920 samples 8 channels */
return -1;
data_ptr = pkt->data;
end_ptr = buffer + length;
buf_ptr = buffer + 4; /* skip SMPTE 331M header */
- for (; buf_ptr < end_ptr; buf_ptr += 4) {
- if (st->codec->bits_per_sample == 24) {
- data_ptr[0] = (buf_ptr[2] >> 4) | ((buf_ptr[3] & 0x0f) << 4);
- data_ptr[1] = (buf_ptr[1] >> 4) | ((buf_ptr[2] & 0x0f) << 4);
- data_ptr[2] = (buf_ptr[0] >> 4) | ((buf_ptr[1] & 0x0f) << 4);
- data_ptr += 3;
- } else {
- data_ptr[0] = (buf_ptr[2] >> 4) | ((buf_ptr[3] & 0x0f) << 4);
- data_ptr[1] = (buf_ptr[1] >> 4) | ((buf_ptr[2] & 0x0f) << 4);
- data_ptr += 2;
+ for (; buf_ptr < end_ptr; ) {
+ for (i = 0; i < st->codec->channels; i++) {
+ uint32_t sample = bytestream_get_le32(&buf_ptr);
+ if (st->codec->bits_per_sample == 24)
+ bytestream_put_le24(&data_ptr, (sample >> 4) & 0xffffff);
+ else
+ bytestream_put_le16(&data_ptr, (sample >> 12) & 0xffff);
}
+ buf_ptr += 32 - st->codec->channels*4; // always 8 channels stored SMPTE 331M
}
pkt->size = data_ptr - pkt->data;
return 0;
}
-static int mxf_read_packet(AVFormatContext *s, AVPacket *pkt)
+static int mxf_decrypt_triplet(AVFormatContext *s, AVPacket *pkt, KLVPacket *klv)
{
+ static const uint8_t checkv[16] = {0x43, 0x48, 0x55, 0x4b, 0x43, 0x48, 0x55, 0x4b, 0x43, 0x48, 0x55, 0x4b, 0x43, 0x48, 0x55, 0x4b};
MXFContext *mxf = s->priv_data;
+ ByteIOContext *pb = &s->pb;
+ offset_t end = url_ftell(pb) + klv->length;
+ uint64_t size;
+ uint64_t orig_size;
+ uint64_t plaintext_size;
+ uint8_t ivec[16];
+ uint8_t tmpbuf[16];
+ int index;
+
+ if (!mxf->aesc && s->key && s->keylen == 16) {
+ mxf->aesc = av_malloc(av_aes_size);
+ av_aes_init(mxf->aesc, s->key, 128, 1);
+ }
+ // crypto context
+ url_fskip(pb, klv_decode_ber_length(pb));
+ // plaintext offset
+ klv_decode_ber_length(pb);
+ plaintext_size = get_be64(pb);
+ // source klv key
+ klv_decode_ber_length(pb);
+ get_buffer(pb, klv->key, 16);
+ if (!IS_KLV_KEY(klv, mxf_essence_element_key))
+ return -1;
+ index = mxf_get_stream_index(s, klv);
+ if (index < 0)
+ return -1;
+ // source size
+ klv_decode_ber_length(pb);
+ orig_size = get_be64(pb);
+ if (orig_size < plaintext_size)
+ return -1;
+ // enc. code
+ size = klv_decode_ber_length(pb);
+ if (size < 32 || size - 32 < orig_size)
+ return -1;
+ get_buffer(pb, ivec, 16);
+ get_buffer(pb, tmpbuf, 16);
+ if (mxf->aesc)
+ av_aes_crypt(mxf->aesc, tmpbuf, tmpbuf, 1, ivec, 1);
+ if (memcmp(tmpbuf, checkv, 16))
+ av_log(s, AV_LOG_ERROR, "probably incorrect decryption key\n");
+ size -= 32;
+ av_get_packet(pb, pkt, size);
+ size -= plaintext_size;
+ if (mxf->aesc)
+ av_aes_crypt(mxf->aesc, &pkt->data[plaintext_size],
+ &pkt->data[plaintext_size], size >> 4, ivec, 1);
+ pkt->size = orig_size;
+ pkt->stream_index = index;
+ url_fskip(pb, end - url_ftell(pb));
+ return 0;
+}
+
+static int mxf_read_packet(AVFormatContext *s, AVPacket *pkt)
+{
KLVPacket klv;
while (!url_feof(&s->pb)) {
- if (klv_read_packet(&klv, &s->pb) < 0) {
- av_log(s, AV_LOG_ERROR, "error reading KLV packet\n");
+ if (klv_read_packet(&klv, &s->pb) < 0)
return -1;
- }
#ifdef DEBUG
- PRINT_KEY("read packet", klv.key);
+ PRINT_KEY(s, "read packet", klv.key);
#endif
if (IS_KLV_KEY(klv.key, mxf_encrypted_triplet_key)) {
- mxf->sync_key = mxf_encrypted_triplet_key;
- av_log(s, AV_LOG_ERROR, "encrypted triplet not supported\n");
- return -1;
+ int res = mxf_decrypt_triplet(s, pkt, &klv);
+ if (res < 0) {
+ av_log(s, AV_LOG_ERROR, "invalid encoded triplet\n");
+ return -1;
+ }
+ return 0;
}
if (IS_KLV_KEY(klv.key, mxf_essence_element_key)) {
int index = mxf_get_stream_index(s, &klv);
} else
av_get_packet(&s->pb, pkt, klv.length);
pkt->stream_index = index;
+ pkt->pos = klv.offset;
return 0;
} else
url_fskip(&s->pb, klv.length);
}
- return AVERROR_IO;
+ return AVERROR(EIO);
}
static int mxf_add_metadata_set(MXFContext *mxf, void *metadata_set)
return 0;
}
+static int mxf_read_metadata_cryptographic_context(MXFCryptoContext *cryptocontext, ByteIOContext *pb, int tag)
+{
+ switch(tag) {
+ case 0xFFFE:
+ get_buffer(pb, cryptocontext->context_uid, 16);
+ break;
+ case 0xFFFD:
+ get_buffer(pb, cryptocontext->source_container_ul, 16);
+ break;
+ }
+ return 0;
+}
+
static int mxf_read_metadata_content_storage(MXFContext *mxf, ByteIOContext *pb, int tag)
{
switch (tag) {
url_fskip(pb, 4); /* useless size of objects, always 16 according to specs */
get_buffer(pb, (uint8_t *)mxf->packages_refs, mxf->packages_count * sizeof(UID));
break;
- case 0x1902:
- mxf->essence_container_data_sets_count = get_be32(pb);
- if (mxf->essence_container_data_sets_count >= UINT_MAX / sizeof(UID))
- return -1;
- mxf->essence_container_data_sets_refs = av_malloc(mxf->essence_container_data_sets_count * sizeof(UID));
- url_fskip(pb, 4); /* useless size of objects, always 16 according to specs */
- get_buffer(pb, (uint8_t *)mxf->essence_container_data_sets_refs, mxf->essence_container_data_sets_count * sizeof(UID));
- break;
}
return 0;
}
do {
code = get_byte(pb);
- dprintf("pixel layout: code 0x%x\n", code);
+ dprintf(NULL, "pixel layout: code 0x%x\n", code);
switch (code) {
case 0x52: /* R */
descriptor->bits_per_sample += get_byte(pb);
static const MXFCodecUL mxf_codec_uls[] = {
/* PictureEssenceCoding */
- { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x02,0x00 }, CODEC_ID_MPEG2VIDEO, Frame }, /* 422P@ML I-Frame */
- { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x02,0x00 }, CODEC_ID_MPEG2VIDEO, Frame }, /* 422P@HL I-Frame */
- { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x03,0x00 }, CODEC_ID_MPEG2VIDEO, Frame }, /* 422P@HL Long GoP */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x11,0x00 }, CODEC_ID_MPEG2VIDEO, Frame }, /* MP@ML Long GoP */
+
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x05 }, CODEC_ID_MPEG2VIDEO, Frame }, /* D-10 30Mbps PAL */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x03 }, CODEC_ID_MPEG2VIDEO, Frame }, /* D-10 40Mbps PAL */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x01 }, CODEC_ID_MPEG2VIDEO, Frame }, /* D-10 50Mbps PAL */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x06 }, CODEC_ID_MPEG2VIDEO, Frame }, /* D-10 30Mbps NTSC */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x04 }, CODEC_ID_MPEG2VIDEO, Frame }, /* D-10 40Mbps NTSC */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x02 }, CODEC_ID_MPEG2VIDEO, Frame }, /* D-10 50Mbps NTSC */
+
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x02,0x00 }, CODEC_ID_MPEG2VIDEO, Frame }, /* 422P@ML I-Frame */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x03,0x00 }, CODEC_ID_MPEG2VIDEO, Frame }, /* 422P@ML Long GoP */
+
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x03,0x00 }, CODEC_ID_MPEG2VIDEO, Frame }, /* MP@HL Long GoP */
+
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x02,0x00 }, CODEC_ID_MPEG2VIDEO, Frame }, /* 422P@HL I-Frame */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x03,0x00 }, CODEC_ID_MPEG2VIDEO, Frame }, /* 422P@HL Long GoP */
+
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x20,0x02,0x03 }, CODEC_ID_MPEG4, Frame }, /* XDCAM proxy_pal030926.mxf */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x20,0x02,0x04 }, CODEC_ID_MPEG4, Frame }, /* XDCAM Proxy C0023S01.mxf */
- { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x05 }, CODEC_ID_MPEG2VIDEO, Frame }, /* D-10 30Mbps PAL */
- { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x01 }, CODEC_ID_MPEG2VIDEO, Frame }, /* D-10 50Mbps PAL */
- { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x04,0x00 }, CODEC_ID_DVVIDEO, Frame }, /* DVCPRO50 PAL */
- { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x02,0x00 }, CODEC_ID_DVVIDEO, Frame }, /* DVCPRO25 PAL */
+
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x01,0x02,0x00 }, CODEC_ID_DVVIDEO, Frame }, /* DV25 IEC PAL */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x02,0x00 }, CODEC_ID_DVVIDEO, Frame }, /* DVCPRO25 PAL */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x04,0x00 }, CODEC_ID_DVVIDEO, Frame }, /* DVCPRO50 PAL */
+
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x07,0x04,0x01,0x02,0x02,0x03,0x01,0x01,0x00 }, CODEC_ID_JPEG2000, Frame }, /* JPEG2000 Codestream */
+
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x01,0x7F,0x00,0x00,0x00 }, CODEC_ID_RAWVIDEO, Frame }, /* Uncompressed */
/* SoundEssenceCompression */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 }, CODEC_ID_PCM_S16LE, Frame }, /* Uncompressed */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x7F,0x00,0x00,0x00 }, CODEC_ID_PCM_S16LE, Frame },
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x07,0x04,0x02,0x02,0x01,0x7E,0x00,0x00,0x00 }, CODEC_ID_PCM_S16BE, Frame }, /* From Omneon MXF file */
- { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x02,0x03,0x01,0x01,0x00 }, CODEC_ID_PCM_ALAW, Frame },
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x04,0x04,0x02,0x02,0x02,0x03,0x01,0x01,0x00 }, CODEC_ID_PCM_ALAW, Frame }, /* XDCAM Proxy C0023S01.mxf */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x02,0x03,0x02,0x01,0x00 }, CODEC_ID_AC3, Frame },
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x02,0x03,0x02,0x05,0x00 }, CODEC_ID_MP2, Frame }, /* MP2 or MP3 */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0x40,0x01 }, CODEC_ID_MP2, Frame }, /* MPEG-ES Frame wrapped, 0x40 ??? stream id */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0xc0,0x01 }, CODEC_ID_MP2, Frame }, /* MPEG-ES Frame wrapped, 0xc0 MPA stream id */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0xc0,0x02 }, CODEC_ID_MP2, Clip }, /* MPEG-ES Clip wrapped, 0xc0 MPA stream id */
- { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 }, CODEC_ID_PCM_S16BE, Frame }, /* D-10 Mapping 30Mbps PAL Extended Template */
- { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 }, CODEC_ID_PCM_S16BE, Frame }, /* D-10 Mapping 50Mbps PAL Extended Template */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 }, CODEC_ID_PCM_S16LE, Frame }, /* D-10 Mapping 30Mbps PAL Extended Template */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x03,0x01 }, CODEC_ID_PCM_S16LE, Frame }, /* D-10 Mapping 40Mbps PAL Extended Template */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 }, CODEC_ID_PCM_S16LE, Frame }, /* D-10 Mapping 50Mbps PAL Extended Template */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x06,0x01 }, CODEC_ID_PCM_S16LE, Frame }, /* D-10 Mapping 30Mbps NTSC Extended Template */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x04,0x01 }, CODEC_ID_PCM_S16LE, Frame }, /* D-10 Mapping 40Mbps NTSC Extended Template */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x02,0x01 }, CODEC_ID_PCM_S16LE, Frame }, /* D-10 Mapping 50Mbps NTSC Extended Template */
{ { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, CODEC_ID_NONE, Frame },
};
+/*
+ * Match an uid independently of the version byte and up to len common bytes
+ * Returns: boolean
+ */
+static int mxf_match_uid(const UID key, const UID uid, int len)
+{
+ int i;
+ for (i = 0; i < len; i++) {
+ if (i != 7 && key[i] != uid[i])
+ return 0;
+ }
+ return 1;
+}
+
static const MXFCodecUL *mxf_get_codec_ul(const MXFCodecUL *uls, UID *uid)
{
while (uls->id != CODEC_ID_NONE) {
- if(!memcmp(uls->uid, *uid, 16))
+ if(mxf_match_uid(uls->uid, *uid, 16))
break;
uls++;
}
static enum CodecType mxf_get_codec_type(const MXFDataDefinitionUL *uls, UID *uid)
{
while (uls->type != CODEC_TYPE_DATA) {
- if(!memcmp(uls->uid, *uid, 16))
+ if(mxf_match_uid(uls->uid, *uid, 16))
break;
uls++;
}
MXFPackage *temp_package = NULL;
int i, j, k;
- dprintf("metadata sets count %d\n", mxf->metadata_sets_count);
+ dprintf(mxf->fc, "metadata sets count %d\n", mxf->metadata_sets_count);
/* TODO: handle multiple material packages (OP3x) */
for (i = 0; i < mxf->packages_count; i++) {
material_package = mxf_resolve_strong_ref(mxf, &mxf->packages_refs[i], MaterialPackage);
MXFTrack *temp_track = NULL;
MXFDescriptor *descriptor = NULL;
MXFStructuralComponent *component = NULL;
+ UID *essence_container_ul = NULL;
const MXFCodecUL *codec_ul = NULL;
const MXFCodecUL *container_ul = NULL;
AVStream *st;
}
#ifdef DEBUG
- PRINT_KEY("data definition ul", source_track->sequence->data_definition_ul);
+ PRINT_KEY(mxf->fc, "data definition ul", source_track->sequence->data_definition_ul);
#endif
st->codec->codec_type = mxf_get_codec_type(mxf_data_definition_uls, &source_track->sequence->data_definition_ul);
continue;
}
#ifdef DEBUG
- PRINT_KEY("essence codec ul", descriptor->essence_codec_ul);
- PRINT_KEY("essence container ul", descriptor->essence_container_ul);
+ PRINT_KEY(mxf->fc, "essence codec ul", descriptor->essence_codec_ul);
+ PRINT_KEY(mxf->fc, "essence container ul", descriptor->essence_container_ul);
#endif
+ essence_container_ul = &descriptor->essence_container_ul;
+ /* HACK: replacing the original key with mxf_encrypted_essence_container
+ * is not allowed according to s429-6, try to find correct information anyway */
+ if (IS_KLV_KEY(essence_container_ul, mxf_encrypted_essence_container)) {
+ av_log(mxf->fc, AV_LOG_INFO, "broken encrypted mxf file\n");
+ for (k = 0; k < mxf->metadata_sets_count; k++) {
+ MXFMetadataSet *metadata = mxf->metadata_sets[k];
+ if (metadata->type == CryptoContext) {
+ essence_container_ul = &((MXFCryptoContext *)metadata)->source_container_ul;
+ break;
+ }
+ }
+ }
/* TODO: drop PictureEssenceCoding and SoundEssenceCompression, only check EssenceContainer */
codec_ul = mxf_get_codec_ul(mxf_codec_uls, &descriptor->essence_codec_ul);
st->codec->codec_id = codec_ul->id;
st->codec->extradata_size = descriptor->extradata_size;
}
if (st->codec->codec_type == CODEC_TYPE_VIDEO) {
- container_ul = mxf_get_codec_ul(mxf_picture_essence_container_uls, &descriptor->essence_container_ul);
+ container_ul = mxf_get_codec_ul(mxf_picture_essence_container_uls, essence_container_ul);
if (st->codec->codec_id == CODEC_ID_NONE)
st->codec->codec_id = container_ul->id;
st->codec->width = descriptor->width;
st->codec->height = descriptor->height;
st->codec->bits_per_sample = descriptor->bits_per_sample; /* Uncompressed */
- st->need_parsing = 2; /* only parse headers */
+ st->need_parsing = AVSTREAM_PARSE_HEADERS;
} else if (st->codec->codec_type == CODEC_TYPE_AUDIO) {
- container_ul = mxf_get_codec_ul(mxf_sound_essence_container_uls, &descriptor->essence_container_ul);
+ container_ul = mxf_get_codec_ul(mxf_sound_essence_container_uls, essence_container_ul);
if (st->codec->codec_id == CODEC_ID_NONE)
st->codec->codec_id = container_ul->id;
st->codec->channels = descriptor->channels;
st->codec->codec_id = CODEC_ID_PCM_S24BE;
else if (descriptor->bits_per_sample == 32)
st->codec->codec_id = CODEC_ID_PCM_S32BE;
- if (descriptor->essence_container_ul[13] == 0x01) /* D-10 Mapping */
- st->codec->channels = 8; /* force channels to 8 */
} else if (st->codec->codec_id == CODEC_ID_MP2) {
- st->need_parsing = 1;
+ st->need_parsing = AVSTREAM_PARSE_FULL;
}
}
if (container_ul && container_ul->wrapping == Clip) {
- dprintf("stream %d: clip wrapped essence\n", st->index);
- st->need_parsing = 1;
+ dprintf(mxf->fc, "stream %d: clip wrapped essence\n", st->index);
+ st->need_parsing = AVSTREAM_PARSE_FULL;
}
}
return 0;
{ { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x47,0x00 }, mxf_read_metadata_generic_descriptor, sizeof(MXFDescriptor), Descriptor }, /* AES3 */
{ { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x3A,0x00 }, mxf_read_metadata_track, sizeof(MXFTrack), Track }, /* Static Track */
{ { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x3B,0x00 }, mxf_read_metadata_track, sizeof(MXFTrack), Track }, /* Generic Track */
+ { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x04,0x01,0x02,0x02,0x00,0x00 }, mxf_read_metadata_cryptographic_context, sizeof(MXFCryptoContext), CryptoContext },
{ { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, NULL, 0, AnyType },
};
-static int mxf_read_sync(ByteIOContext *pb, const uint8_t *key, unsigned size)
-{
- int i, b;
- for (i = 0; i < size && !url_feof(pb); i++) {
- b = get_byte(pb);
- if (b == key[0])
- i = 0;
- else if (b != key[i])
- i = -1;
- }
- return i == size;
-}
-
static int mxf_read_local_tags(MXFContext *mxf, KLVPacket *klv, int (*read_child)(), int ctx_size, enum MXFMetadataSetType type)
{
ByteIOContext *pb = &mxf->fc->pb;
MXFContext *mxf = s->priv_data;
KLVPacket klv;
- mxf->sync_key = mxf_essence_element_key;
if (!mxf_read_sync(&s->pb, mxf_header_partition_pack_key, 14)) {
av_log(s, AV_LOG_ERROR, "could not find header partition pack key\n");
return -1;
url_fseek(&s->pb, -14, SEEK_CUR);
mxf->fc = s;
while (!url_feof(&s->pb)) {
- const MXFMetadataReadTableEntry *function;
+ const MXFMetadataReadTableEntry *metadata;
- if (klv_read_packet(&klv, &s->pb) < 0) {
- av_log(s, AV_LOG_ERROR, "error reading KLV packet\n");
+ if (klv_read_packet(&klv, &s->pb) < 0)
return -1;
- }
#ifdef DEBUG
- PRINT_KEY("read header", klv.key);
+ PRINT_KEY(s, "read header", klv.key);
#endif
- if (IS_KLV_KEY(klv.key, mxf_essence_element_key)) {
+ if (IS_KLV_KEY(klv.key, mxf_encrypted_triplet_key) ||
+ IS_KLV_KEY(klv.key, mxf_essence_element_key)) {
/* FIXME avoid seek */
url_fseek(&s->pb, klv.offset, SEEK_SET);
break;
}
- for (function = mxf_metadata_read_table; function->read; function++) {
- if (IS_KLV_KEY(klv.key, function->key)) {
- if (mxf_read_local_tags(mxf, &klv, function->read, function->ctx_size, function->type) < 0) {
+ for (metadata = mxf_metadata_read_table; metadata->read; metadata++) {
+ if (IS_KLV_KEY(klv.key, metadata->key)) {
+ if (mxf_read_local_tags(mxf, &klv, metadata->read, metadata->ctx_size, metadata->type) < 0) {
av_log(s, AV_LOG_ERROR, "error reading header metadata\n");
return -1;
}
break;
}
}
- if (!function->read)
+ if (!metadata->read)
url_fskip(&s->pb, klv.length);
}
return mxf_parse_structural_metadata(mxf);
int i;
av_freep(&mxf->packages_refs);
- av_freep(&mxf->essence_container_data_sets_refs);
for (i = 0; i < mxf->metadata_sets_count; i++) {
switch (mxf->metadata_sets[i]->type) {
case MultipleDescriptor:
av_freep(&mxf->metadata_sets[i]);
}
av_freep(&mxf->metadata_sets);
+ av_freep(&mxf->aesc);
return 0;
}
return 0;
}
-/* rudimentary binary seek */
+/* rudimentary byte seek */
/* XXX: use MXF Index */
static int mxf_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
{
- MXFContext *mxf = s->priv_data;
AVStream *st = s->streams[stream_index];
int64_t seconds;
sample_time = 0;
seconds = av_rescale(sample_time, st->time_base.num, st->time_base.den);
url_fseek(&s->pb, (s->bit_rate * seconds) >> 3, SEEK_SET);
- if (!mxf_read_sync(&s->pb, mxf->sync_key, 12))
- return -1;
-
- /* found KLV key */
- url_fseek(&s->pb, -12, SEEK_CUR);
av_update_cur_dts(s, st, sample_time);
return 0;
}
projects / ffmpeg / blobdiff