virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-23 12:43:46 +02:00
Code Issues Releases Activity

mxfdec: use av_dlog() for 'no corresponding source package found'

Browse Source 
This is not an error and expected behavior for OPAtom files.

Signed-off-by: Janne Grunau <janne-libav@jannau.net>
This commit is contained in:
Tomas Härdin 2011-12-08 11:21:58 +01:00 committed by Janne Grunau
parent c77a5460b1
commit 21cc4b3327
1 changed files with 142 additions and 31 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

173
libavformat/mxfdec.c
View File

@ -69,6 +69,7 @@ typedef enum {
OP3b, OP3b,
OP3c, OP3c,
OPAtom, OPAtom,
OPSonyOpt, /* FATE sample, violates the spec in places */
} MXFOP; } MXFOP;
typedef struct { typedef struct {
@ -79,6 +80,12 @@ typedef struct {
int index_sid; int index_sid;
int body_sid; int body_sid;
int64_t this_partition; int64_t this_partition;
int64_t essence_offset; ///< absolute offset of essence
int64_t essence_length;
int32_t kag_size;
int64_t header_byte_count;
int64_t index_byte_count;
int pack_length;
} MXFPartition; } MXFPartition;
typedef struct { typedef struct {
@ -148,6 +155,7 @@ typedef struct {
int *slice; int *slice;
int *element_delta; int *element_delta;
int nb_delta_entries; int nb_delta_entries;
int8_t *temporal_offset_entries;
int *flag_entries; int *flag_entries;
uint64_t *stream_offset_entries; uint64_t *stream_offset_entries;
uint32_t **slice_offset_entries; uint32_t **slice_offset_entries;
@ -200,7 +208,8 @@ enum MXFWrappingScheme {
Clip, Clip,
}; };
typedef int MXFMetadataReadFunc(void *arg, AVIOContext *pb, int tag, int size, UID uid); /* NOTE: klv_offset is not set (-1) for local keys */
typedef int MXFMetadataReadFunc(void *arg, AVIOContext *pb, int tag, int size, UID uid, int64_t klv_offset);
typedef struct { typedef struct {
const UID key; const UID key;
@ -414,7 +423,7 @@ static int mxf_read_packet(AVFormatContext *s, AVPacket *pkt)
return AVERROR_EOF; return AVERROR_EOF;
} }
static int mxf_read_primer_pack(void *arg, AVIOContext *pb, int tag, int size, UID uid) static int mxf_read_primer_pack(void *arg, AVIOContext *pb, int tag, int size, UID uid, int64_t klv_offset)
{ {
MXFContext *mxf = arg; MXFContext *mxf = arg;
int item_num = avio_rb32(pb); int item_num = avio_rb32(pb);
@ -435,7 +444,7 @@ static int mxf_read_primer_pack(void *arg, AVIOContext *pb, int tag, int size, U
return 0; return 0;
} }
static int mxf_read_partition_pack(void *arg, AVIOContext *pb, int tag, int size, UID uid) static int mxf_read_partition_pack(void *arg, AVIOContext *pb, int tag, int size, UID uid, int64_t klv_offset)
{ {
MXFContext *mxf = arg; MXFContext *mxf = arg;
MXFPartition *partition; MXFPartition *partition;
@ -463,6 +472,7 @@ static int mxf_read_partition_pack(void *arg, AVIOContext *pb, int tag, int size
memset(partition, 0, sizeof(*partition)); memset(partition, 0, sizeof(*partition));
mxf->partitions_count++; mxf->partitions_count++;
partition->pack_length = avio_tell(pb) - klv_offset + size;
switch(uid[13]) { switch(uid[13]) {
case 2: case 2:
@ -482,11 +492,13 @@ static int mxf_read_partition_pack(void *arg, AVIOContext *pb, int tag, int size
/* consider both footers to be closed (there is only Footer and CompleteFooter) */ /* consider both footers to be closed (there is only Footer and CompleteFooter) */
partition->closed = partition->type == Footer || !(uid[14] & 1); partition->closed = partition->type == Footer || !(uid[14] & 1);
partition->complete = uid[14] > 2; partition->complete = uid[14] > 2;
avio_skip(pb, 8); avio_skip(pb, 4);
partition->kag_size = avio_rb32(pb);
partition->this_partition = avio_rb64(pb); partition->this_partition = avio_rb64(pb);
partition->previous_partition = avio_rb64(pb); partition->previous_partition = avio_rb64(pb);
footer_partition = avio_rb64(pb); footer_partition = avio_rb64(pb);
avio_skip(pb, 16); partition->header_byte_count = avio_rb64(pb);
partition->index_byte_count = avio_rb64(pb);
partition->index_sid = avio_rb32(pb); partition->index_sid = avio_rb32(pb);
avio_skip(pb, 8); avio_skip(pb, 8);
partition->body_sid = avio_rb32(pb); partition->body_sid = avio_rb32(pb);
@ -518,8 +530,22 @@ static int mxf_read_partition_pack(void *arg, AVIOContext *pb, int tag, int size
else if (op[12] == 3 && op[13] == 2) mxf->op = OP3b; else if (op[12] == 3 && op[13] == 2) mxf->op = OP3b;
else if (op[12] == 3 && op[13] == 3) mxf->op = OP3c; else if (op[12] == 3 && op[13] == 3) mxf->op = OP3c;
else if (op[12] == 0x10) mxf->op = OPAtom; else if (op[12] == 0x10) mxf->op = OPAtom;
else else if (op[12] == 64&& op[13] == 1) mxf->op = OPSonyOpt;
av_log(mxf->fc, AV_LOG_ERROR, "unknown operational pattern: %02xh %02xh\n", op[12], op[13]); else {
av_log(mxf->fc, AV_LOG_ERROR, "unknown operational pattern: %02xh %02xh - guessing OP1a\n", op[12], op[13]);
mxf->op = OP1a;
}
if (partition->kag_size <= 0 || partition->kag_size > (1 << 20)) {
av_log(mxf->fc, AV_LOG_WARNING, "invalid KAGSize %i - guessing ", partition->kag_size);
if (mxf->op == OPSonyOpt)
partition->kag_size = 512;
else
partition->kag_size = 1;
av_log(mxf->fc, AV_LOG_WARNING, "%i\n", partition->kag_size);
}
return 0; return 0;
} }
@ -536,7 +562,7 @@ static int mxf_add_metadata_set(MXFContext *mxf, void *metadata_set)
return 0; return 0;
} }
static int mxf_read_cryptographic_context(void *arg, AVIOContext *pb, int tag, int size, UID uid) static int mxf_read_cryptographic_context(void *arg, AVIOContext *pb, int tag, int size, UID uid, int64_t klv_offset)
{ {
MXFCryptoContext *cryptocontext = arg; MXFCryptoContext *cryptocontext = arg;
if (size != 16) if (size != 16)
@ -546,7 +572,7 @@ static int mxf_read_cryptographic_context(void *arg, AVIOContext *pb, int tag, i
return 0; return 0;
} }
static int mxf_read_content_storage(void *arg, AVIOContext *pb, int tag, int size, UID uid) static int mxf_read_content_storage(void *arg, AVIOContext *pb, int tag, int size, UID uid, int64_t klv_offset)
{ {
MXFContext *mxf = arg; MXFContext *mxf = arg;
switch (tag) { switch (tag) {
@ -564,7 +590,7 @@ static int mxf_read_content_storage(void *arg, AVIOContext *pb, int tag, int siz
return 0; return 0;
} }
static int mxf_read_source_clip(void *arg, AVIOContext *pb, int tag, int size, UID uid) static int mxf_read_source_clip(void *arg, AVIOContext *pb, int tag, int size, UID uid, int64_t klv_offset)
{ {
MXFStructuralComponent *source_clip = arg; MXFStructuralComponent *source_clip = arg;
switch(tag) { switch(tag) {
@ -586,7 +612,7 @@ static int mxf_read_source_clip(void *arg, AVIOContext *pb, int tag, int size, U
return 0; return 0;
} }
static int mxf_read_material_package(void *arg, AVIOContext *pb, int tag, int size, UID uid) static int mxf_read_material_package(void *arg, AVIOContext *pb, int tag, int size, UID uid, int64_t klv_offset)
{ {
MXFPackage *package = arg; MXFPackage *package = arg;
switch(tag) { switch(tag) {
@ -604,7 +630,7 @@ static int mxf_read_material_package(void *arg, AVIOContext *pb, int tag, int si
return 0; return 0;
} }
static int mxf_read_track(void *arg, AVIOContext *pb, int tag, int size, UID uid) static int mxf_read_track(void *arg, AVIOContext *pb, int tag, int size, UID uid, int64_t klv_offset)
{ {
MXFTrack *track = arg; MXFTrack *track = arg;
switch(tag) { switch(tag) {
@ -625,7 +651,7 @@ static int mxf_read_track(void *arg, AVIOContext *pb, int tag, int size, UID uid
return 0; return 0;
} }
static int mxf_read_sequence(void *arg, AVIOContext *pb, int tag, int size, UID uid) static int mxf_read_sequence(void *arg, AVIOContext *pb, int tag, int size, UID uid, int64_t klv_offset)
{ {
MXFSequence *sequence = arg; MXFSequence *sequence = arg;
switch(tag) { switch(tag) {
@ -649,7 +675,7 @@ static int mxf_read_sequence(void *arg, AVIOContext *pb, int tag, int size, UID
return 0; return 0;
} }
static int mxf_read_source_package(void *arg, AVIOContext *pb, int tag, int size, UID uid) static int mxf_read_source_package(void *arg, AVIOContext *pb, int tag, int size, UID uid, int64_t klv_offset)
{ {
MXFPackage *package = arg; MXFPackage *package = arg;
switch(tag) { switch(tag) {
@ -719,19 +745,22 @@ static int mxf_read_index_entry_array(AVIOContext *pb, MXFIndexTableSegment *seg
length = avio_rb32(pb); length = avio_rb32(pb);
segment->flag_entries = av_mallocz(segment->nb_index_entries * segment->temporal_offset_entries = av_mallocz(segment->nb_index_entries *
sizeof(*segment->flag_entries)); sizeof(*segment->temporal_offset_entries));
segment->stream_offset_entries = av_mallocz(segment->nb_index_entries * segment->flag_entries = av_mallocz(segment->nb_index_entries *
sizeof(*segment->stream_offset_entries)); sizeof(*segment->flag_entries));
segment->slice_offset_entries = av_mallocz(segment->nb_index_entries * segment->stream_offset_entries = av_mallocz(segment->nb_index_entries *
sizeof(*segment->slice_offset_entries)); sizeof(*segment->stream_offset_entries));
segment->slice_offset_entries = av_mallocz(segment->nb_index_entries *
sizeof(*segment->slice_offset_entries));
if (!segment->flag_entries || !segment->stream_offset_entries || if (!segment->flag_entries || !segment->stream_offset_entries ||
!segment->slice_offset_entries) !segment->slice_offset_entries || !segment->temporal_offset_entries)
goto errmem; goto errmem;
for (i = 0; i < segment->nb_index_entries; i++) { for (i = 0; i < segment->nb_index_entries; i++) {
avio_rb16(pb); /* TemporalOffset and KeyFrameOffset */ segment->temporal_offset_entries[i] = avio_r8(pb);
avio_r8(pb); /* KeyFrameOffset */
segment->flag_entries[i] = avio_r8(pb); segment->flag_entries[i] = avio_r8(pb);
segment->stream_offset_entries[i] = avio_rb64(pb); segment->stream_offset_entries[i] = avio_rb64(pb);
if (segment->slice_count) { if (segment->slice_count) {
@ -755,10 +784,11 @@ errmem:
av_freep(&segment->flag_entries); av_freep(&segment->flag_entries);
av_freep(&segment->stream_offset_entries); av_freep(&segment->stream_offset_entries);
av_freep(&segment->slice_offset_entries); av_freep(&segment->slice_offset_entries);
av_freep(&segment->temporal_offset_entries);
return AVERROR(ENOMEM); return AVERROR(ENOMEM);
} }
static int mxf_read_index_table_segment(void *arg, AVIOContext *pb, int tag, int size, UID uid) static int mxf_read_index_table_segment(void *arg, AVIOContext *pb, int tag, int size, UID uid, int64_t klv_offset)
{ {
MXFIndexTableSegment *segment = arg; MXFIndexTableSegment *segment = arg;
switch(tag) { switch(tag) {
@ -821,7 +851,7 @@ static void mxf_read_pixel_layout(AVIOContext *pb, MXFDescriptor *descriptor)
ff_mxf_decode_pixel_layout(layout, &descriptor->pix_fmt); ff_mxf_decode_pixel_layout(layout, &descriptor->pix_fmt);
} }
static int mxf_read_generic_descriptor(void *arg, AVIOContext *pb, int tag, int size, UID uid) static int mxf_read_generic_descriptor(void *arg, AVIOContext *pb, int tag, int size, UID uid, int64_t klv_offset)
{ {
MXFDescriptor *descriptor = arg; MXFDescriptor *descriptor = arg;
switch(tag) { switch(tag) {
@ -1153,7 +1183,7 @@ static int mxf_parse_structural_metadata(MXFContext *mxf)
} }
} }
if (!source_package) { if (!source_package) {
av_log(mxf->fc, AV_LOG_ERROR, "material track %d: no corresponding source package found\n", material_track->track_id); av_dlog(mxf->fc, "material track %d: no corresponding source package found\n", material_track->track_id);
break; break;
} }
for (k = 0; k < source_package->tracks_count; k++) { for (k = 0; k < source_package->tracks_count; k++) {
@ -1353,7 +1383,7 @@ static int mxf_read_local_tags(MXFContext *mxf, KLVPacket *klv, MXFMetadataReadF
} }
if (ctx_size && tag == 0x3C0A) if (ctx_size && tag == 0x3C0A)
avio_read(pb, ctx->uid, 16); avio_read(pb, ctx->uid, 16);
else if ((ret = read_child(ctx, pb, tag, size, uid)) < 0) else if ((ret = read_child(ctx, pb, tag, size, uid, -1)) < 0)
return ret; return ret;
avio_seek(pb, next, SEEK_SET); avio_seek(pb, next, SEEK_SET);
@ -1438,6 +1468,79 @@ static int mxf_parse_handle_partition_or_eof(MXFContext *mxf)
return mxf->parsing_backward ? mxf_seek_to_previous_partition(mxf) : 1; return mxf->parsing_backward ? mxf_seek_to_previous_partition(mxf) : 1;
} }
/**
* Figure out the proper offset and length of the essence container
* in each partition
*/
static void mxf_compute_essence_containers(MXFContext *mxf)
{
int x;
/* everything is already correct */
if (mxf->op == OPAtom)
return;
for (x = 0; x < mxf->partitions_count; x++) {
MXFPartition *p = &mxf->partitions[x];
if (!p->body_sid)
continue; /* BodySID == 0 -> no essence */
if (x >= mxf->partitions_count - 1)
break; /* last partition - can't compute length (and we don't need to) */
/* essence container spans to the next partition */
p->essence_length = mxf->partitions[x+1].this_partition - p->essence_offset;
if (p->essence_length < 0) {
/* next ThisPartition < essence_offset */
p->essence_length = 0;
av_log(mxf->fc, AV_LOG_ERROR, "partition %i: bad ThisPartition = %lx\n",
x+1, mxf->partitions[x+1].this_partition);
}
}
}
static int64_t round_to_kag(int64_t position, int kag_size)
{
/* TODO: account for run-in? the spec isn't clear whether KAG should account for it */
/* NOTE: kag_size may be any integer between 1 - 2^10 */
int64_t ret = (position / kag_size) * kag_size;
return ret == position ? ret : ret + kag_size;
}
static inline void compute_partition_essence_offset(AVFormatContext *s,
MXFContext *mxf,
KLVPacket *klv)
{
MXFPartition *cur_part = mxf->current_partition;
/* for OP1a we compute essence_offset
* for OPAtom we point essence_offset after the KL
* (usually op1a_essence_offset + 20 or 25)
* TODO: for OP1a we could eliminate this entire if statement, always
* stopping parsing at op1a_essence_offset
* for OPAtom we still need the actual essence_offset though
* (the KL's length can vary)
*/
int64_t op1a_essence_offset =
round_to_kag(cur_part->this_partition + cur_part->pack_length,
cur_part->kag_size) +
round_to_kag(cur_part->header_byte_count, cur_part->kag_size) +
round_to_kag(cur_part->index_byte_count, cur_part->kag_size);
if (mxf->op == OPAtom) {
/* point essence_offset to the actual data
* OPAtom has all the essence in one big KLV
*/
cur_part->essence_offset = avio_tell(s->pb);
cur_part->essence_length = klv->length;
} else {
/* NOTE: op1a_essence_offset may be less than to klv.offset
* (C0023S01.mxf) */
cur_part->essence_offset = op1a_essence_offset;
}
}
static int mxf_read_header(AVFormatContext *s, AVFormatParameters *ap) static int mxf_read_header(AVFormatContext *s, AVFormatParameters *ap)
{ {
MXFContext *mxf = s->priv_data; MXFContext *mxf = s->priv_data;
@ -1469,9 +1572,13 @@ static int mxf_read_header(AVFormatContext *s, AVFormatParameters *ap)
if (IS_KLV_KEY(klv.key, mxf_encrypted_triplet_key) || if (IS_KLV_KEY(klv.key, mxf_encrypted_triplet_key) ||
IS_KLV_KEY(klv.key, mxf_essence_element_key) || IS_KLV_KEY(klv.key, mxf_essence_element_key) ||
IS_KLV_KEY(klv.key, mxf_system_item_key)) { IS_KLV_KEY(klv.key, mxf_system_item_key)) {
if (IS_KLV_KEY(klv.key, mxf_system_item_key)) { if (!mxf->current_partition->essence_offset) {
mxf->system_item = 1; compute_partition_essence_offset(s, mxf, &klv);
} }
if (IS_KLV_KEY(klv.key, mxf_system_item_key)) {
mxf->system_item = 1;
}
if (!mxf->essence_offset) if (!mxf->essence_offset)
mxf->essence_offset = klv.offset; mxf->essence_offset = klv.offset;
@ -1499,7 +1606,7 @@ static int mxf_read_header(AVFormatContext *s, AVFormatParameters *ap)
res = mxf_read_local_tags(mxf, &klv, metadata->read, metadata->ctx_size, metadata->type); res = mxf_read_local_tags(mxf, &klv, metadata->read, metadata->ctx_size, metadata->type);
} else { } else {
uint64_t next = avio_tell(s->pb) + klv.length; uint64_t next = avio_tell(s->pb) + klv.length;
res = metadata->read(mxf, s->pb, 0, 0, klv.key); res = metadata->read(mxf, s->pb, 0, klv.length, klv.key, klv.offset);
avio_seek(s->pb, next, SEEK_SET); avio_seek(s->pb, next, SEEK_SET);
} }
if (res < 0) { if (res < 0) {
@ -1518,6 +1625,9 @@ static int mxf_read_header(AVFormatContext *s, AVFormatParameters *ap)
return AVERROR_INVALIDDATA; return AVERROR_INVALIDDATA;
} }
avio_seek(s->pb, mxf->essence_offset, SEEK_SET); avio_seek(s->pb, mxf->essence_offset, SEEK_SET);
mxf_compute_essence_containers(mxf);
return mxf_parse_structural_metadata(mxf); return mxf_parse_structural_metadata(mxf);
} }
@ -1551,6 +1661,7 @@ static int mxf_read_close(AVFormatContext *s)
av_freep(&seg->slice_offset_entries[j]); av_freep(&seg->slice_offset_entries[j]);
av_freep(&seg->slice); av_freep(&seg->slice);
av_freep(&seg->element_delta); av_freep(&seg->element_delta);
av_freep(&seg->temporal_offset_entries);
av_freep(&seg->flag_entries); av_freep(&seg->flag_entries);
av_freep(&seg->stream_offset_entries); av_freep(&seg->stream_offset_entries);
av_freep(&seg->slice_offset_entries); av_freep(&seg->slice_offset_entries);