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rtmpproto: Reorder conditions to help dead code elimination

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This makes sure that these branches are eliminated properly
with clang with optimizations disabled.
This commit is contained in:
Vittorio Giovara 2013-11-03 10:50:00 +01:00
parent 3ea5f64fff
commit d763978583
1 changed files with 6 additions and 6 deletions
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12
libavformat/rtmpproto.c
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@ -1171,7 +1171,7 @@ static int rtmp_handshake(URLContext *s, RTMPContext *rt)
for (i = 9; i <= RTMP_HANDSHAKE_PACKET_SIZE; i++) for (i = 9; i <= RTMP_HANDSHAKE_PACKET_SIZE; i++)
tosend[i] = av_lfg_get(&rnd) >> 24; tosend[i] = av_lfg_get(&rnd) >> 24;
if (rt->encrypted && CONFIG_FFRTMPCRYPT_PROTOCOL) { if (CONFIG_FFRTMPCRYPT_PROTOCOL && rt->encrypted) {
/* When the client wants to use RTMPE, we have to change the command /* When the client wants to use RTMPE, we have to change the command
* byte to 0x06 which means to use encrypted data and we have to set * byte to 0x06 which means to use encrypted data and we have to set
* the flash version to at least 9.0.115.0. */ * the flash version to at least 9.0.115.0. */
@ -1249,7 +1249,7 @@ static int rtmp_handshake(URLContext *s, RTMPContext *rt)
if (ret < 0) if (ret < 0)
return ret; return ret;
if (rt->encrypted && CONFIG_FFRTMPCRYPT_PROTOCOL) { if (CONFIG_FFRTMPCRYPT_PROTOCOL && rt->encrypted) {
/* Compute the shared secret key sent by the server and initialize /* Compute the shared secret key sent by the server and initialize
* the RC4 encryption. */ * the RC4 encryption. */
if ((ret = ff_rtmpe_compute_secret_key(rt->stream, serverdata + 1, if ((ret = ff_rtmpe_compute_secret_key(rt->stream, serverdata + 1,
@ -1279,7 +1279,7 @@ static int rtmp_handshake(URLContext *s, RTMPContext *rt)
if (ret < 0) if (ret < 0)
return ret; return ret;
if (rt->encrypted && CONFIG_FFRTMPCRYPT_PROTOCOL) { if (CONFIG_FFRTMPCRYPT_PROTOCOL && rt->encrypted) {
/* Encrypt the signature to be send to the server. */ /* Encrypt the signature to be send to the server. */
ff_rtmpe_encrypt_sig(rt->stream, tosend + ff_rtmpe_encrypt_sig(rt->stream, tosend +
RTMP_HANDSHAKE_PACKET_SIZE - 32, digest, RTMP_HANDSHAKE_PACKET_SIZE - 32, digest,
@ -1291,13 +1291,13 @@ static int rtmp_handshake(URLContext *s, RTMPContext *rt)
RTMP_HANDSHAKE_PACKET_SIZE)) < 0) RTMP_HANDSHAKE_PACKET_SIZE)) < 0)
return ret; return ret;
if (rt->encrypted && CONFIG_FFRTMPCRYPT_PROTOCOL) { if (CONFIG_FFRTMPCRYPT_PROTOCOL && rt->encrypted) {
/* Set RC4 keys for encryption and update the keystreams. */ /* Set RC4 keys for encryption and update the keystreams. */
if ((ret = ff_rtmpe_update_keystream(rt->stream)) < 0) if ((ret = ff_rtmpe_update_keystream(rt->stream)) < 0)
return ret; return ret;
} }
} else { } else {
if (rt->encrypted && CONFIG_FFRTMPCRYPT_PROTOCOL) { if (CONFIG_FFRTMPCRYPT_PROTOCOL && rt->encrypted) {
/* Compute the shared secret key sent by the server and initialize /* Compute the shared secret key sent by the server and initialize
* the RC4 encryption. */ * the RC4 encryption. */
if ((ret = ff_rtmpe_compute_secret_key(rt->stream, serverdata + 1, if ((ret = ff_rtmpe_compute_secret_key(rt->stream, serverdata + 1,
@ -1315,7 +1315,7 @@ static int rtmp_handshake(URLContext *s, RTMPContext *rt)
RTMP_HANDSHAKE_PACKET_SIZE)) < 0) RTMP_HANDSHAKE_PACKET_SIZE)) < 0)
return ret; return ret;
if (rt->encrypted && CONFIG_FFRTMPCRYPT_PROTOCOL) { if (CONFIG_FFRTMPCRYPT_PROTOCOL && rt->encrypted) {
/* Set RC4 keys for encryption and update the keystreams. */ /* Set RC4 keys for encryption and update the keystreams. */
if ((ret = ff_rtmpe_update_keystream(rt->stream)) < 0) if ((ret = ff_rtmpe_update_keystream(rt->stream)) < 0)
return ret; return ret;