sc->stsc_count = i;
for (i = sc->stsc_count - 1; i < UINT_MAX; i--) {
+ int64_t first_min = i + 1;
if ((i+1 < sc->stsc_count && sc->stsc_data[i].first >= sc->stsc_data[i+1].first) ||
(i > 0 && sc->stsc_data[i].first <= sc->stsc_data[i-1].first) ||
- sc->stsc_data[i].first < 1 ||
+ sc->stsc_data[i].first < first_min ||
sc->stsc_data[i].count < 1 ||
sc->stsc_data[i].id < 1) {
av_log(c->fc, AV_LOG_WARNING, "STSC entry %d is invalid (first=%d count=%d id=%d)\n", i, sc->stsc_data[i].first, sc->stsc_data[i].count, sc->stsc_data[i].id);
- if (i+1 >= sc->stsc_count || sc->stsc_data[i+1].first < 2)
- return AVERROR_INVALIDDATA;
+ if (i+1 >= sc->stsc_count) {
+ sc->stsc_data[i].first = FFMAX(sc->stsc_data[i].first, first_min);
+ if (i > 0 && sc->stsc_data[i].first <= sc->stsc_data[i-1].first)
+ sc->stsc_data[i].first = FFMIN(sc->stsc_data[i-1].first + 1LL, INT_MAX);
+ sc->stsc_data[i].count = FFMAX(sc->stsc_data[i].count, 1);
+ sc->stsc_data[i].id = FFMAX(sc->stsc_data[i].id, 1);
+ continue;
+ }
+ av_assert0(sc->stsc_data[i+1].first >= 2);
// We replace this entry by the next valid
sc->stsc_data[i].first = sc->stsc_data[i+1].first - 1;
sc->stsc_data[i].count = sc->stsc_data[i+1].count;
if (ret < 0) {
av_freep(&sc->sample_sizes);
av_free(buf);
- return ret;
+ av_log(c->fc, AV_LOG_WARNING, "STSZ atom truncated\n");
+ return 0;
}
init_get_bits(&gb, buf, 8*num_bytes);
st->nb_frames= total_sample_count;
if (duration)
- st->duration= duration;
+ st->duration= FFMIN(st->duration, duration);
sc->track_end = duration;
return 0;
}
flags |= AVINDEX_DISCARD_FRAME;
av_log(mov->fc, AV_LOG_DEBUG, "drop a frame at curr_cts: %"PRId64" @ %"PRId64"\n", curr_cts, index);
- if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO && edit_list_start_encountered == 0) {
+ if (edit_list_start_encountered == 0) {
num_discarded_begin++;
frame_duration_buffer = av_realloc(frame_duration_buffer,
num_discarded_begin * sizeof(int64_t));
frame_duration_buffer[num_discarded_begin - 1] = frame_duration;
// Increment skip_samples for the first non-zero audio edit list
- if (first_non_zero_audio_edit > 0 && st->codecpar->codec_id != AV_CODEC_ID_VORBIS) {
+ if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
+ first_non_zero_audio_edit > 0 && st->codecpar->codec_id != AV_CODEC_ID_VORBIS) {
st->skip_samples += frame_duration;
}
}
}
if (edit_list_start_encountered == 0) {
edit_list_start_encountered = 1;
- // Make timestamps strictly monotonically increasing for audio, by rewriting timestamps for
+ // Make timestamps strictly monotonically increasing by rewriting timestamps for
// discarded packets.
- if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO && frame_duration_buffer) {
+ if (frame_duration_buffer) {
fix_index_entry_timestamps(st, st->nb_index_entries, edit_list_dts_counter,
frame_duration_buffer, num_discarded_begin);
av_freep(&frame_duration_buffer);
// If the minimum pts turns out to be greater than zero after fixing the index, then we subtract the
// dts by that amount to make the first pts zero.
- if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && msc->min_corrected_pts > 0) {
- av_log(mov->fc, AV_LOG_DEBUG, "Offset DTS by %"PRId64" to make first pts zero.\n", msc->min_corrected_pts);
- for (i = 0; i < st->nb_index_entries; ++i) {
- st->index_entries[i].timestamp -= msc->min_corrected_pts;
+ if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
+ if (msc->min_corrected_pts > 0) {
+ av_log(mov->fc, AV_LOG_DEBUG, "Offset DTS by %"PRId64" to make first pts zero.\n", msc->min_corrected_pts);
+ for (i = 0; i < st->nb_index_entries; ++i) {
+ st->index_entries[i].timestamp -= msc->min_corrected_pts;
+ }
}
+ // Start time should be equal to zero or the duration of any empty edits.
+ st->start_time = empty_edits_sum_duration;
}
- // Update av stream length
- st->duration = edit_list_dts_entry_end - start_dts;
+ // Update av stream length, if it ends up shorter than the track's media duration
+ st->duration = FFMIN(st->duration, edit_list_dts_entry_end - start_dts);
msc->start_pad = st->skip_samples;
// Free the old index and the old CTTS structures
} else {
unsigned chunk_samples, total = 0;
+ if (!sc->chunk_count)
+ return;
+
// compute total chunk count
for (i = 0; i < sc->stsc_count; i++) {
unsigned count, chunk_count;
mov_fix_index(mov, st);
}
+ // Update start time of the stream.
+ if (st->start_time == AV_NOPTS_VALUE && st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && st->nb_index_entries > 0) {
+ st->start_time = st->index_entries[0].timestamp + sc->dts_shift;
+ if (sc->ctts_data) {
+ st->start_time += sc->ctts_data[0].duration;
+ }
+ }
+
mov_estimate_video_delay(mov, st);
}
st->index);
return 0;
}
- if (sc->stsc_count && sc->stsc_data[ sc->stsc_count - 1 ].first > sc->chunk_count) {
+ if (sc->chunk_count && sc->stsc_count && sc->stsc_data[ sc->stsc_count - 1 ].first > sc->chunk_count) {
av_log(c->fc, AV_LOG_ERROR, "stream %d, contradictionary STSC and STCO\n",
st->index);
return AVERROR_INVALIDDATA;
return AVERROR(ENOMEM);
for (i = 0; i < sample_count; i++) {
- unsigned int min_samples = FFMIN(FFMAX(i, 1024 * 1024), sample_count);
+ unsigned int min_samples = FFMIN(FFMAX(i + 1, 1024 * 1024), sample_count);
encrypted_samples = av_fast_realloc(encryption_index->encrypted_samples, &alloc_size,
min_samples * sizeof(*encrypted_samples));
if (encrypted_samples) {
return 0;
}
+static int mov_parse_auxiliary_info(MOVContext *c, MOVStreamContext *sc, AVIOContext *pb, MOVEncryptionIndex *encryption_index)
+{
+ AVEncryptionInfo **sample, **encrypted_samples;
+ int64_t prev_pos;
+ size_t sample_count, sample_info_size, i;
+ int ret = 0;
+ unsigned int alloc_size = 0;
+
+ if (encryption_index->nb_encrypted_samples)
+ return 0;
+ sample_count = encryption_index->auxiliary_info_sample_count;
+ if (encryption_index->auxiliary_offsets_count != 1) {
+ av_log(c->fc, AV_LOG_ERROR, "Multiple auxiliary info chunks are not supported\n");
+ return AVERROR_PATCHWELCOME;
+ }
+ if (sample_count >= INT_MAX / sizeof(*encrypted_samples))
+ return AVERROR(ENOMEM);
+
+ prev_pos = avio_tell(pb);
+ if (!(pb->seekable & AVIO_SEEKABLE_NORMAL) ||
+ avio_seek(pb, encryption_index->auxiliary_offsets[0], SEEK_SET) != encryption_index->auxiliary_offsets[0]) {
+ av_log(c->fc, AV_LOG_INFO, "Failed to seek for auxiliary info, will only parse senc atoms for encryption info\n");
+ goto finish;
+ }
+
+ for (i = 0; i < sample_count && !pb->eof_reached; i++) {
+ unsigned int min_samples = FFMIN(FFMAX(i + 1, 1024 * 1024), sample_count);
+ encrypted_samples = av_fast_realloc(encryption_index->encrypted_samples, &alloc_size,
+ min_samples * sizeof(*encrypted_samples));
+ if (!encrypted_samples) {
+ ret = AVERROR(ENOMEM);
+ goto finish;
+ }
+ encryption_index->encrypted_samples = encrypted_samples;
+
+ sample = &encryption_index->encrypted_samples[i];
+ sample_info_size = encryption_index->auxiliary_info_default_size
+ ? encryption_index->auxiliary_info_default_size
+ : encryption_index->auxiliary_info_sizes[i];
+
+ ret = mov_read_sample_encryption_info(c, pb, sc, sample, sample_info_size > sc->cenc.per_sample_iv_size);
+ if (ret < 0)
+ goto finish;
+ }
+ if (pb->eof_reached) {
+ av_log(c->fc, AV_LOG_ERROR, "Hit EOF while reading auxiliary info\n");
+ ret = AVERROR_INVALIDDATA;
+ } else {
+ encryption_index->nb_encrypted_samples = sample_count;
+ }
+
+finish:
+ avio_seek(pb, prev_pos, SEEK_SET);
+ if (ret < 0) {
+ for (; i > 0; i--) {
+ av_encryption_info_free(encryption_index->encrypted_samples[i - 1]);
+ }
+ av_freep(&encryption_index->encrypted_samples);
+ }
+ return ret;
+}
+
+/**
+ * Tries to read the given number of bytes from the stream and puts it in a
+ * newly allocated buffer. This reads in small chunks to avoid allocating large
+ * memory if the file contains an invalid/malicious size value.
+ */
+static int mov_try_read_block(AVIOContext *pb, size_t size, uint8_t **data)
+{
+ const unsigned int block_size = 1024 * 1024;
+ uint8_t *buffer = NULL;
+ unsigned int alloc_size = 0, offset = 0;
+ while (offset < size) {
+ unsigned int new_size =
+ alloc_size >= INT_MAX - block_size ? INT_MAX : alloc_size + block_size;
+ uint8_t *new_buffer = av_fast_realloc(buffer, &alloc_size, new_size);
+ unsigned int to_read = FFMIN(size, alloc_size) - offset;
+ if (!new_buffer) {
+ av_free(buffer);
+ return AVERROR(ENOMEM);
+ }
+ buffer = new_buffer;
+
+ if (avio_read(pb, buffer + offset, to_read) != to_read) {
+ av_free(buffer);
+ return AVERROR_INVALIDDATA;
+ }
+ offset += to_read;
+ }
+
+ *data = buffer;
+ return 0;
+}
+
+static int mov_read_saiz(MOVContext *c, AVIOContext *pb, MOVAtom atom)
+{
+ MOVEncryptionIndex *encryption_index;
+ MOVStreamContext *sc;
+ int ret;
+ unsigned int sample_count, aux_info_type, aux_info_param;
+
+ ret = get_current_encryption_info(c, &encryption_index, &sc);
+ if (ret != 1)
+ return ret;
+
+ if (encryption_index->nb_encrypted_samples) {
+ // This can happen if we have both saio/saiz and senc atoms.
+ av_log(c->fc, AV_LOG_DEBUG, "Ignoring duplicate encryption info in saiz\n");
+ return 0;
+ }
+
+ if (encryption_index->auxiliary_info_sample_count) {
+ av_log(c->fc, AV_LOG_ERROR, "Duplicate saiz atom\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ avio_r8(pb); /* version */
+ if (avio_rb24(pb) & 0x01) { /* flags */
+ aux_info_type = avio_rb32(pb);
+ aux_info_param = avio_rb32(pb);
+ if (sc->cenc.default_encrypted_sample) {
+ if (aux_info_type != sc->cenc.default_encrypted_sample->scheme) {
+ av_log(c->fc, AV_LOG_DEBUG, "Ignoring saiz box with non-zero aux_info_type\n");
+ return 0;
+ }
+ if (aux_info_param != 0) {
+ av_log(c->fc, AV_LOG_DEBUG, "Ignoring saiz box with non-zero aux_info_type_parameter\n");
+ return 0;
+ }
+ } else {
+ // Didn't see 'schm' or 'tenc', so this isn't encrypted.
+ if ((aux_info_type == MKBETAG('c','e','n','c') ||
+ aux_info_type == MKBETAG('c','e','n','s') ||
+ aux_info_type == MKBETAG('c','b','c','1') ||
+ aux_info_type == MKBETAG('c','b','c','s')) &&
+ aux_info_param == 0) {
+ av_log(c->fc, AV_LOG_ERROR, "Saw encrypted saiz without schm/tenc\n");
+ return AVERROR_INVALIDDATA;
+ } else {
+ return 0;
+ }
+ }
+ } else if (!sc->cenc.default_encrypted_sample) {
+ // Didn't see 'schm' or 'tenc', so this isn't encrypted.
+ return 0;
+ }
+
+ encryption_index->auxiliary_info_default_size = avio_r8(pb);
+ sample_count = avio_rb32(pb);
+ encryption_index->auxiliary_info_sample_count = sample_count;
+
+ if (encryption_index->auxiliary_info_default_size == 0) {
+ ret = mov_try_read_block(pb, sample_count, &encryption_index->auxiliary_info_sizes);
+ if (ret < 0) {
+ av_log(c->fc, AV_LOG_ERROR, "Failed to read the auxiliary info\n");
+ return ret;
+ }
+ }
+
+ if (encryption_index->auxiliary_offsets_count) {
+ return mov_parse_auxiliary_info(c, sc, pb, encryption_index);
+ }
+
+ return 0;
+}
+
+static int mov_read_saio(MOVContext *c, AVIOContext *pb, MOVAtom atom)
+{
+ uint64_t *auxiliary_offsets;
+ MOVEncryptionIndex *encryption_index;
+ MOVStreamContext *sc;
+ int i, ret;
+ unsigned int version, entry_count, aux_info_type, aux_info_param;
+ unsigned int alloc_size = 0;
+
+ ret = get_current_encryption_info(c, &encryption_index, &sc);
+ if (ret != 1)
+ return ret;
+
+ if (encryption_index->nb_encrypted_samples) {
+ // This can happen if we have both saio/saiz and senc atoms.
+ av_log(c->fc, AV_LOG_DEBUG, "Ignoring duplicate encryption info in saio\n");
+ return 0;
+ }
+
+ if (encryption_index->auxiliary_offsets_count) {
+ av_log(c->fc, AV_LOG_ERROR, "Duplicate saio atom\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ version = avio_r8(pb); /* version */
+ if (avio_rb24(pb) & 0x01) { /* flags */
+ aux_info_type = avio_rb32(pb);
+ aux_info_param = avio_rb32(pb);
+ if (sc->cenc.default_encrypted_sample) {
+ if (aux_info_type != sc->cenc.default_encrypted_sample->scheme) {
+ av_log(c->fc, AV_LOG_DEBUG, "Ignoring saio box with non-zero aux_info_type\n");
+ return 0;
+ }
+ if (aux_info_param != 0) {
+ av_log(c->fc, AV_LOG_DEBUG, "Ignoring saio box with non-zero aux_info_type_parameter\n");
+ return 0;
+ }
+ } else {
+ // Didn't see 'schm' or 'tenc', so this isn't encrypted.
+ if ((aux_info_type == MKBETAG('c','e','n','c') ||
+ aux_info_type == MKBETAG('c','e','n','s') ||
+ aux_info_type == MKBETAG('c','b','c','1') ||
+ aux_info_type == MKBETAG('c','b','c','s')) &&
+ aux_info_param == 0) {
+ av_log(c->fc, AV_LOG_ERROR, "Saw encrypted saio without schm/tenc\n");
+ return AVERROR_INVALIDDATA;
+ } else {
+ return 0;
+ }
+ }
+ } else if (!sc->cenc.default_encrypted_sample) {
+ // Didn't see 'schm' or 'tenc', so this isn't encrypted.
+ return 0;
+ }
+
+ entry_count = avio_rb32(pb);
+ if (entry_count >= INT_MAX / sizeof(*auxiliary_offsets))
+ return AVERROR(ENOMEM);
+
+ for (i = 0; i < entry_count && !pb->eof_reached; i++) {
+ unsigned int min_offsets = FFMIN(FFMAX(i + 1, 1024), entry_count);
+ auxiliary_offsets = av_fast_realloc(
+ encryption_index->auxiliary_offsets, &alloc_size,
+ min_offsets * sizeof(*auxiliary_offsets));
+ if (!auxiliary_offsets) {
+ av_freep(&encryption_index->auxiliary_offsets);
+ return AVERROR(ENOMEM);
+ }
+ encryption_index->auxiliary_offsets = auxiliary_offsets;
+
+ if (version == 0) {
+ encryption_index->auxiliary_offsets[i] = avio_rb32(pb);
+ } else {
+ encryption_index->auxiliary_offsets[i] = avio_rb64(pb);
+ }
+ if (c->frag_index.current >= 0) {
+ encryption_index->auxiliary_offsets[i] += c->fragment.base_data_offset;
+ }
+ }
+
+ if (pb->eof_reached) {
+ av_log(c->fc, AV_LOG_ERROR, "Hit EOF while reading saio\n");
+ av_freep(&encryption_index->auxiliary_offsets);
+ return AVERROR_INVALIDDATA;
+ }
+
+ encryption_index->auxiliary_offsets_count = entry_count;
+
+ if (encryption_index->auxiliary_info_sample_count) {
+ return mov_parse_auxiliary_info(c, sc, pb, encryption_index);
+ }
+
+ return 0;
+}
+
+static int mov_read_pssh(MOVContext *c, AVIOContext *pb, MOVAtom atom)
+{
+ AVEncryptionInitInfo *info, *old_init_info;
+ uint8_t **key_ids;
+ AVStream *st;
+ uint8_t *side_data, *extra_data, *old_side_data;
+ size_t side_data_size;
+ int ret = 0, old_side_data_size;
+ unsigned int version, kid_count, extra_data_size, alloc_size = 0;
+
+ if (c->fc->nb_streams < 1)
+ return 0;
+ st = c->fc->streams[c->fc->nb_streams-1];
+
+ version = avio_r8(pb); /* version */
+ avio_rb24(pb); /* flags */
+
+ info = av_encryption_init_info_alloc(/* system_id_size */ 16, /* num_key_ids */ 0,
+ /* key_id_size */ 16, /* data_size */ 0);
+ if (!info)
+ return AVERROR(ENOMEM);
+
+ if (avio_read(pb, info->system_id, 16) != 16) {
+ av_log(c->fc, AV_LOG_ERROR, "Failed to read the system id\n");
+ ret = AVERROR_INVALIDDATA;
+ goto finish;
+ }
+
+ if (version > 0) {
+ kid_count = avio_rb32(pb);
+ if (kid_count >= INT_MAX / sizeof(*key_ids))
+ return AVERROR(ENOMEM);
+
+ for (unsigned int i = 0; i < kid_count && !pb->eof_reached; i++) {
+ unsigned int min_kid_count = FFMIN(FFMAX(i + 1, 1024), kid_count);
+ key_ids = av_fast_realloc(info->key_ids, &alloc_size,
+ min_kid_count * sizeof(*key_ids));
+ if (!key_ids) {
+ ret = AVERROR(ENOMEM);
+ goto finish;
+ }
+ info->key_ids = key_ids;
+
+ info->key_ids[i] = av_mallocz(16);
+ if (!info->key_ids[i]) {
+ ret = AVERROR(ENOMEM);
+ goto finish;
+ }
+ info->num_key_ids = i + 1;
+
+ if (avio_read(pb, info->key_ids[i], 16) != 16) {
+ av_log(c->fc, AV_LOG_ERROR, "Failed to read the key id\n");
+ ret = AVERROR_INVALIDDATA;
+ goto finish;
+ }
+ }
+
+ if (pb->eof_reached) {
+ av_log(c->fc, AV_LOG_ERROR, "Hit EOF while reading pssh\n");
+ ret = AVERROR_INVALIDDATA;
+ goto finish;
+ }
+ }
+
+ extra_data_size = avio_rb32(pb);
+ ret = mov_try_read_block(pb, extra_data_size, &extra_data);
+ if (ret < 0)
+ goto finish;
+
+ av_freep(&info->data); // malloc(0) may still allocate something.
+ info->data = extra_data;
+ info->data_size = extra_data_size;
+
+ // If there is existing initialization data, append to the list.
+ old_side_data = av_stream_get_side_data(st, AV_PKT_DATA_ENCRYPTION_INIT_INFO, &old_side_data_size);
+ if (old_side_data) {
+ old_init_info = av_encryption_init_info_get_side_data(old_side_data, old_side_data_size);
+ if (old_init_info) {
+ // Append to the end of the list.
+ for (AVEncryptionInitInfo *cur = old_init_info;; cur = cur->next) {
+ if (!cur->next) {
+ cur->next = info;
+ break;
+ }
+ }
+ info = old_init_info;
+ } else {
+ // Assume existing side-data will be valid, so the only error we could get is OOM.
+ ret = AVERROR(ENOMEM);
+ goto finish;
+ }
+ }
+
+ side_data = av_encryption_init_info_add_side_data(info, &side_data_size);
+ if (!side_data) {
+ ret = AVERROR(ENOMEM);
+ goto finish;
+ }
+ ret = av_stream_add_side_data(st, AV_PKT_DATA_ENCRYPTION_INIT_INFO,
+ side_data, side_data_size);
+ if (ret < 0)
+ av_free(side_data);
+
+finish:
+ av_encryption_init_info_free(info);
+ return ret;
+}
+
static int mov_read_schm(MOVContext *c, AVIOContext *pb, MOVAtom atom)
{
AVStream *st;
return AVERROR(ENOMEM);
}
sc->cenc.per_sample_iv_size = avio_r8(pb);
+ if (sc->cenc.per_sample_iv_size != 0 && sc->cenc.per_sample_iv_size != 8 &&
+ sc->cenc.per_sample_iv_size != 16) {
+ av_log(c->fc, AV_LOG_ERROR, "invalid per-sample IV size value\n");
+ return AVERROR_INVALIDDATA;
+ }
if (avio_read(pb, sc->cenc.default_encrypted_sample->key_id, 16) != 16) {
- av_log(c->fc, AV_LOG_ERROR, "failed to read the default key ID");
+ av_log(c->fc, AV_LOG_ERROR, "failed to read the default key ID\n");
return AVERROR_INVALIDDATA;
}
}
if (avio_read(pb, sc->cenc.default_encrypted_sample->iv, iv_size) != iv_size) {
- av_log(c->fc, AV_LOG_ERROR, "failed to read the default IV");
+ av_log(c->fc, AV_LOG_ERROR, "failed to read the default IV\n");
return AVERROR_INVALIDDATA;
}
}
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;
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;
MOVFragmentStreamInfo *frag_stream_info;
MOVEncryptionIndex *encryption_index;
AVEncryptionInfo *encrypted_sample;
- int encrypted_index;
+ int encrypted_index, ret;
frag_stream_info = get_current_frag_stream_info(&mov->frag_index);
encrypted_index = current_index;
}
if (encryption_index) {
+ if (encryption_index->auxiliary_info_sample_count &&
+ !encryption_index->nb_encrypted_samples) {
+ av_log(mov->fc, AV_LOG_ERROR, "saiz atom found without saio\n");
+ return AVERROR_INVALIDDATA;
+ }
+ if (encryption_index->auxiliary_offsets_count &&
+ !encryption_index->nb_encrypted_samples) {
+ av_log(mov->fc, AV_LOG_ERROR, "saio atom found without saiz\n");
+ return AVERROR_INVALIDDATA;
+ }
+
if (!encryption_index->nb_encrypted_samples) {
// Full-sample encryption with default settings.
encrypted_sample = sc->cenc.default_encrypted_sample;
if (mov->decryption_key) {
return cenc_decrypt(mov, sc, encrypted_sample, pkt->data, pkt->size);
+ } else {
+ size_t size;
+ uint8_t *side_data = av_encryption_info_add_side_data(encrypted_sample, &size);
+ if (!side_data)
+ return AVERROR(ENOMEM);
+ ret = av_packet_add_side_data(pkt, AV_PKT_DATA_ENCRYPTION_INFO, side_data, size);
+ if (ret < 0)
+ av_free(side_data);
+ return ret;
}
}
{ MKTAG('s','i','n','f'), mov_read_default },
{ MKTAG('f','r','m','a'), mov_read_frma },
{ MKTAG('s','e','n','c'), mov_read_senc },
+{ MKTAG('s','a','i','z'), mov_read_saiz },
+{ MKTAG('s','a','i','o'), mov_read_saio },
+{ MKTAG('p','s','s','h'), mov_read_pssh },
{ MKTAG('s','c','h','m'), mov_read_schm },
{ MKTAG('s','c','h','i'), mov_read_default },
{ MKTAG('t','e','n','c'), mov_read_tenc },
av_encryption_info_free((*index)->encrypted_samples[i]);
}
av_freep(&(*index)->encrypted_samples);
+ av_freep(&(*index)->auxiliary_info_sizes);
+ av_freep(&(*index)->auxiliary_offsets);
av_freep(index);
}
} else {
int64_t next_dts = (sc->current_sample < st->nb_index_entries) ?
st->index_entries[sc->current_sample].timestamp : st->duration;
- pkt->duration = next_dts - pkt->dts;
+
+ if (next_dts >= pkt->dts)
+ pkt->duration = next_dts - pkt->dts;
pkt->pts = pkt->dts;
}
if (st->discard == AVDISCARD_ALL)
projects / ffmpeg / blobdiff