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minor correction (unlikely overflow case)

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fduncanh
2021-12-08 15:39:50 -05:00
parent 799a9bc0e9
commit bda5d1417b
1 changed files with 4 additions and 6 deletions
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10
lib/raop_rtp_mirror.c
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@@ -325,16 +325,16 @@ raop_rtp_mirror_thread(void *arg)
while (nalu_size < payload_size) {
int nc_len = (payload_decrypted[nalu_size + 0] << 24) | (payload_decrypted[nalu_size + 1] << 16) |
(payload_decrypted[nalu_size + 2] << 8) | (payload_decrypted[nalu_size + 3]);
if (nc_len < 0 || nalu_size + 4 > payload_size) {
valid = false;
break;
}
payload_decrypted[nalu_size + 0] = 0;
payload_decrypted[nalu_size + 1] = 0;
payload_decrypted[nalu_size + 2] = 0;
payload_decrypted[nalu_size + 3] = 1;
nalu_size += nc_len + 4;
nalus_count++;
if (nc_len < 0 || nalu_size > payload_size) {
valid = false;
break;
}
}
// int nalu_type = payload[4] & 0x1f;
@@ -346,14 +346,12 @@ raop_rtp_mirror_thread(void *arg)
fwrite(payload_decrypted, payload_size, 1, file);
#endif
if (!valid || nalu_size != payload_size) payload_decrypted[0] = 1; /* mark as invalid */
h264_decode_struct h264_data;
h264_data.data_len = payload_size;
h264_data.data = payload_decrypted;
h264_data.frame_type = 1;
h264_data.pts = ntp_timestamp;
raop_rtp_mirror->callbacks.video_process(raop_rtp_mirror->callbacks.cls, raop_rtp_mirror->ntp, &h264_data);
free(payload_decrypted);
} else if ((payload_type & 255) == 1) {
// The information in the payload contains an SPS and a PPS NAL