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hlsdemux: use gnutls instead of openssl

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This commit is contained in:
Alessandro Decina 2013-03-19 10:26:14 +01:00
parent 7d982d3418
commit 5c77ef61ed
1 changed files with 13 additions and 11 deletions
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24
gst/hls/gsthlsdemux.c
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@ -47,8 +47,8 @@
#include <string.h>
#include <gst/glib-compat-private.h>
#include <openssl/aes.h>
#include <openssl/evp.h>
#include <gnutls/gnutls.h>
#include <gnutls/crypto.h>
#include "gsthlsdemux.h"
static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src_%u",
@ -1218,8 +1218,8 @@ gst_hls_demux_decrypt_fragment (GstHLSDemux * demux,
GstFragment *key_fragment, *ret;
GstBuffer *key_buffer, *encrypted_buffer, *decrypted_buffer;
GstMapInfo key_info, encrypted_info, decrypted_info;
EVP_CIPHER_CTX aes_ctx;
int out_size = 0;
gnutls_cipher_hd_t aes_ctx;
gnutls_datum_t key_d, iv_d;
GST_INFO_OBJECT (demux, "Fetching key %s", key);
key_fragment = gst_uri_downloader_fetch_uri (demux->downloader, key);
@ -1236,13 +1236,15 @@ gst_hls_demux_decrypt_fragment (GstHLSDemux * demux,
gst_buffer_map (encrypted_buffer, &encrypted_info, GST_MAP_READ);
gst_buffer_map (decrypted_buffer, &decrypted_info, GST_MAP_WRITE);
EVP_CIPHER_CTX_init (&aes_ctx);
EVP_CipherInit_ex (&aes_ctx, EVP_aes_128_cbc (), NULL, key_info.data, iv,
AES_DECRYPT);
EVP_CipherUpdate (&aes_ctx, decrypted_info.data, &out_size,
encrypted_info.data, encrypted_info.size);
EVP_CipherFinal_ex (&aes_ctx, decrypted_info.data + out_size, &out_size);
EVP_CIPHER_CTX_cleanup (&aes_ctx);
key_d.data = key_info.data;
key_d.size = 16;
iv_d.data = (unsigned char *) iv;
iv_d.size = 16;
gnutls_cipher_init (&aes_ctx, gnutls_cipher_get_id ("AES-128-CBC"), &key_d,
&iv_d);
gnutls_cipher_decrypt2 (aes_ctx, encrypted_info.data, encrypted_info.size,
decrypted_info.data, decrypted_info.size);
gnutls_cipher_deinit (aes_ctx);
gst_buffer_unmap (decrypted_buffer, &decrypted_info);
gst_buffer_unmap (encrypted_buffer, &encrypted_info);