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Code Issues Releases Activity

avformat/mov: Remove old encryption info methods.

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Signed-off-by: Jacob Trimble <modmaker@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Jacob Trimble 2018-01-30 11:14:35 -08:00 committed by Michael Niedermayer
parent 606c5c7f3a
commit baf9c0bd99
2 changed files with 0 additions and 101 deletions
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10
libavformat/isom.h
View File

@ -224,16 +224,6 @@ typedef struct MOVStreamContext {
int has_sidx; // If there is an sidx entry for this stream.
struct {
// TODO: Remove once old methods are removed from mov.c
int use_subsamples;
uint8_t* auxiliary_info;
uint8_t* auxiliary_info_end;
uint8_t* auxiliary_info_pos;
uint8_t auxiliary_info_default_size;
uint8_t* auxiliary_info_sizes;
size_t auxiliary_info_sizes_count;
int64_t auxiliary_info_index;
struct AVAESCTR* aes_ctr;
unsigned int per_sample_iv_size; // Either 0, 8, or 16.
AVEncryptionInfo *default_encrypted_sample;

91
libavformat/mov.c
View File

@ -6009,67 +6009,6 @@ static int mov_read_tenc(MOVContext *c, AVIOContext *pb, MOVAtom atom)
return 0;
}
static int mov_read_saiz(MOVContext *c, AVIOContext *pb, MOVAtom atom)
{
AVStream *st;
MOVStreamContext *sc;
size_t data_size;
int atom_header_size;
int flags;
if (c->decryption_key_len == 0 || c->fc->nb_streams < 1)
return 0;
st = c->fc->streams[c->fc->nb_streams - 1];
sc = st->priv_data;
if (sc->cenc.auxiliary_info_sizes || sc->cenc.auxiliary_info_default_size) {
av_log(c->fc, AV_LOG_ERROR, "duplicate saiz atom\n");
return AVERROR_INVALIDDATA;
}
atom_header_size = 9;
avio_r8(pb); /* version */
flags = avio_rb24(pb);
if ((flags & 0x01) != 0) {
atom_header_size += 8;
avio_rb32(pb); /* info type */
avio_rb32(pb); /* info type param */
}
sc->cenc.auxiliary_info_default_size = avio_r8(pb);
avio_rb32(pb); /* entries */
if (atom.size <= atom_header_size) {
return 0;
}
if (atom.size > FFMIN(INT_MAX, SIZE_MAX)) {
av_log(c->fc, AV_LOG_ERROR, "saiz atom auxiliary_info_sizes size %"PRId64" invalid\n", atom.size);
return AVERROR_INVALIDDATA;
}
/* save the auxiliary info sizes as is */
data_size = atom.size - atom_header_size;
sc->cenc.auxiliary_info_sizes = av_malloc(data_size);
if (!sc->cenc.auxiliary_info_sizes) {
return AVERROR(ENOMEM);
}
sc->cenc.auxiliary_info_sizes_count = data_size;
if (avio_read(pb, sc->cenc.auxiliary_info_sizes, data_size) != data_size) {
av_log(c->fc, AV_LOG_ERROR, "failed to read the auxiliary info sizes");
return AVERROR_INVALIDDATA;
}
return 0;
}
static int mov_read_dfla(MOVContext *c, AVIOContext *pb, MOVAtom atom)
{
AVStream *st;
@ -6107,36 +6046,6 @@ static int mov_read_dfla(MOVContext *c, AVIOContext *pb, MOVAtom atom)
return 0;
}
static int mov_seek_auxiliary_info(MOVContext *c, MOVStreamContext *sc, int64_t index)
{
size_t auxiliary_info_seek_offset = 0;
int i;
if (sc->cenc.auxiliary_info_default_size) {
auxiliary_info_seek_offset = (size_t)sc->cenc.auxiliary_info_default_size * index;
} else if (sc->cenc.auxiliary_info_sizes) {
if (index > sc->cenc.auxiliary_info_sizes_count) {
av_log(c, AV_LOG_ERROR, "current sample %"PRId64" greater than the number of auxiliary info sample sizes %"SIZE_SPECIFIER"\n",
index, sc->cenc.auxiliary_info_sizes_count);
return AVERROR_INVALIDDATA;
}
for (i = 0; i < index; i++) {
auxiliary_info_seek_offset += sc->cenc.auxiliary_info_sizes[i];
}
}
if (auxiliary_info_seek_offset > sc->cenc.auxiliary_info_end - sc->cenc.auxiliary_info) {
av_log(c, AV_LOG_ERROR, "auxiliary info offset %"SIZE_SPECIFIER" greater than auxiliary info size %"SIZE_SPECIFIER"\n",
auxiliary_info_seek_offset, (size_t)(sc->cenc.auxiliary_info_end - sc->cenc.auxiliary_info));
return AVERROR_INVALIDDATA;
}
sc->cenc.auxiliary_info_pos = sc->cenc.auxiliary_info + auxiliary_info_seek_offset;
sc->cenc.auxiliary_info_index = index;
return 0;
}
static int cenc_decrypt(MOVContext *c, MOVStreamContext *sc, AVEncryptionInfo *sample, uint8_t *input, int size)
{
int i, ret;