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Code Issues Releases Activity

Change all functions referenced in the mxf_metadata_read_table to use the same

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prototype and also always call them with exactly those arguments.
The previous way seems to have worked on all supported platforms, however
it was not strictly valid C and would crash e.g. with a compiler that
uses stdcall by default.
Also avoids warnings if -Wstrict-prototypes is used.

Originally committed as revision 23939 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Reimar Döffinger 2010-07-01 17:10:31 +00:00
parent 6eabaef4b8
commit 39bb30f664
1 changed files with 29 additions and 15 deletions
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44
libavformat/mxfdec.c
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@ -140,9 +140,11 @@ enum MXFWrappingScheme {
Clip,
};
typedef int MXFMetadataReadFunc(void *arg, ByteIOContext *pb, int tag, int size, UID uid);
typedef struct {
const UID key;
int (*read)();
MXFMetadataReadFunc *read;
int ctx_size;
enum MXFMetadataSetType type;
} MXFMetadataReadTableEntry;
@ -342,9 +344,9 @@ static int mxf_read_packet(AVFormatContext *s, AVPacket *pkt)
return AVERROR_EOF;
}
static int mxf_read_primer_pack(MXFContext *mxf)
static int mxf_read_primer_pack(void *arg, ByteIOContext *pb, int tag, int size, UID uid)
{
ByteIOContext *pb = mxf->fc->pb;
MXFContext *mxf = arg;
int item_num = get_be32(pb);
int item_len = get_be32(pb);
@ -374,8 +376,9 @@ static int mxf_add_metadata_set(MXFContext *mxf, void *metadata_set)
return 0;
}
static int mxf_read_cryptographic_context(MXFCryptoContext *cryptocontext, ByteIOContext *pb, int tag, int size, UID uid)
static int mxf_read_cryptographic_context(void *arg, ByteIOContext *pb, int tag, int size, UID uid)
{
MXFCryptoContext *cryptocontext = arg;
if (size != 16)
return -1;
if (IS_KLV_KEY(uid, mxf_crypto_source_container_ul))
@ -383,8 +386,9 @@ static int mxf_read_cryptographic_context(MXFCryptoContext *cryptocontext, ByteI
return 0;
}
static int mxf_read_content_storage(MXFContext *mxf, ByteIOContext *pb, int tag)
static int mxf_read_content_storage(void *arg, ByteIOContext *pb, int tag, int size, UID uid)
{
MXFContext *mxf = arg;
switch (tag) {
case 0x1901:
mxf->packages_count = get_be32(pb);
@ -400,8 +404,9 @@ static int mxf_read_content_storage(MXFContext *mxf, ByteIOContext *pb, int tag)
return 0;
}
static int mxf_read_source_clip(MXFStructuralComponent *source_clip, ByteIOContext *pb, int tag)
static int mxf_read_source_clip(void *arg, ByteIOContext *pb, int tag, int size, UID uid)
{
MXFStructuralComponent *source_clip = arg;
switch(tag) {
case 0x0202:
source_clip->duration = get_be64(pb);
@ -421,8 +426,9 @@ static int mxf_read_source_clip(MXFStructuralComponent *source_clip, ByteIOConte
return 0;
}
static int mxf_read_material_package(MXFPackage *package, ByteIOContext *pb, int tag)
static int mxf_read_material_package(void *arg, ByteIOContext *pb, int tag, int size, UID uid)
{
MXFPackage *package = arg;
switch(tag) {
case 0x4403:
package->tracks_count = get_be32(pb);
@ -438,8 +444,9 @@ static int mxf_read_material_package(MXFPackage *package, ByteIOContext *pb, int
return 0;
}
static int mxf_read_track(MXFTrack *track, ByteIOContext *pb, int tag)
static int mxf_read_track(void *arg, ByteIOContext *pb, int tag, int size, UID uid)
{
MXFTrack *track = arg;
switch(tag) {
case 0x4801:
track->track_id = get_be32(pb);
@ -458,8 +465,9 @@ static int mxf_read_track(MXFTrack *track, ByteIOContext *pb, int tag)
return 0;
}
static int mxf_read_sequence(MXFSequence *sequence, ByteIOContext *pb, int tag)
static int mxf_read_sequence(void *arg, ByteIOContext *pb, int tag, int size, UID uid)
{
MXFSequence *sequence = arg;
switch(tag) {
case 0x0202:
sequence->duration = get_be64(pb);
@ -481,8 +489,9 @@ static int mxf_read_sequence(MXFSequence *sequence, ByteIOContext *pb, int tag)
return 0;
}
static int mxf_read_source_package(MXFPackage *package, ByteIOContext *pb, int tag)
static int mxf_read_source_package(void *arg, ByteIOContext *pb, int tag, int size, UID uid)
{
MXFPackage *package = arg;
switch(tag) {
case 0x4403:
package->tracks_count = get_be32(pb);
@ -506,7 +515,7 @@ static int mxf_read_source_package(MXFPackage *package, ByteIOContext *pb, int t
return 0;
}
static int mxf_read_index_table_segment(MXFIndexTableSegment *segment, ByteIOContext *pb, int tag)
static int mxf_read_index_table_segment(void *arg, ByteIOContext *pb, int tag, int size, UID uid)
{
switch(tag) {
case 0x3F05: dprintf(NULL, "EditUnitByteCount %d\n", get_be32(pb)); break;
@ -538,8 +547,9 @@ static void mxf_read_pixel_layout(ByteIOContext *pb, MXFDescriptor *descriptor)
ff_mxf_decode_pixel_layout(layout, &descriptor->pix_fmt);
}
static int mxf_read_generic_descriptor(MXFDescriptor *descriptor, ByteIOContext *pb, int tag, int size, UID uid)
static int mxf_read_generic_descriptor(void *arg, ByteIOContext *pb, int tag, int size, UID uid)
{
MXFDescriptor *descriptor = arg;
switch(tag) {
case 0x3F01:
descriptor->sub_descriptors_count = get_be32(pb);
@ -852,7 +862,7 @@ static const MXFMetadataReadTableEntry mxf_metadata_read_table[] = {
{ { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, NULL, 0, AnyType },
};
static int mxf_read_local_tags(MXFContext *mxf, KLVPacket *klv, int (*read_child)(), int ctx_size, enum MXFMetadataSetType type)
static int mxf_read_local_tags(MXFContext *mxf, KLVPacket *klv, MXFMetadataReadFunc *read_child, int ctx_size, enum MXFMetadataSetType type)
{
ByteIOContext *pb = mxf->fc->pb;
MXFMetadataSet *ctx = ctx_size ? av_mallocz(ctx_size) : mxf;
@ -920,8 +930,12 @@ static int mxf_read_header(AVFormatContext *s, AVFormatParameters *ap)
for (metadata = mxf_metadata_read_table; metadata->read; metadata++) {
if (IS_KLV_KEY(klv.key, metadata->key)) {
int (*read)() = klv.key[5] == 0x53 ? mxf_read_local_tags : metadata->read;
if (read(mxf, &klv, metadata->read, metadata->ctx_size, metadata->type) < 0) {
int res;
if (klv.key[5] == 0x53) {
res = mxf_read_local_tags(mxf, &klv, metadata->read, metadata->ctx_size, metadata->type);
} else
res = metadata->read(mxf, s->pb, 0, 0, NULL);
if (res < 0) {
av_log(s, AV_LOG_ERROR, "error reading header metadata\n");
return -1;
}