Index: webrtc/modules/rtp_rtcp/source/forward_error_correction_internal.cc |
diff --git a/webrtc/modules/rtp_rtcp/source/forward_error_correction_internal.cc b/webrtc/modules/rtp_rtcp/source/forward_error_correction_internal.cc |
index 790e705bc4aa4e9505496e84d8e9e7cf556fdead..fe59ccddf0368fbe48e9c2f9d5ba0353c949fb24 100644 |
--- a/webrtc/modules/rtp_rtcp/source/forward_error_correction_internal.cc |
+++ b/webrtc/modules/rtp_rtcp/source/forward_error_correction_internal.cc |
@@ -15,6 +15,7 @@ |
#include <algorithm> |
+#include "webrtc/base/checks.h" |
#include "webrtc/modules/rtp_rtcp/source/fec_private_tables_bursty.h" |
#include "webrtc/modules/rtp_rtcp/source/fec_private_tables_random.h" |
@@ -205,8 +206,8 @@ void RemainingPacketProtection(int num_media_packets, |
const int l_bit = |
(num_media_packets - num_fec_for_imp_packets) > 16 ? 1 : 0; |
- const int res_mask_bytes = |
- (l_bit == 1) ? kMaskSizeLBitSet : kMaskSizeLBitClear; |
+ const int res_mask_bytes = (l_bit == 1) ? kUlpfecPacketMaskSizeLBitSet |
danilchap
2016/09/01 16:28:48
May be PacketMaskSize(num_media_packets - num_fec_
brandtr
2016/09/02 08:29:13
Might as well do it here, while we're at it..!
|
+ : kUlpfecPacketMaskSizeLBitClear; |
const uint8_t* packet_mask_sub_21 = |
mask_table.fec_packet_mask_table()[num_media_packets - |
@@ -246,8 +247,8 @@ void ImportantPacketProtection(int num_fec_for_imp_packets, |
uint8_t* packet_mask, |
const PacketMaskTable& mask_table) { |
const int l_bit = num_imp_packets > 16 ? 1 : 0; |
- const int num_imp_mask_bytes = |
- (l_bit == 1) ? kMaskSizeLBitSet : kMaskSizeLBitClear; |
+ const int num_imp_mask_bytes = (l_bit == 1) ? kUlpfecPacketMaskSizeLBitSet |
danilchap
2016/09/01 16:28:48
probably can use PacketMaskSize(num_imp_packets) h
|
+ : kUlpfecPacketMaskSizeLBitClear; |
// Get sub_mask1 from table |
const uint8_t* packet_mask_sub_1 = |
@@ -376,8 +377,8 @@ void GeneratePacketMasks(int num_media_packets, |
assert(num_imp_packets <= num_media_packets && num_imp_packets >= 0); |
int l_bit = num_media_packets > 16 ? 1 : 0; |
- const int num_mask_bytes = |
- (l_bit == 1) ? kMaskSizeLBitSet : kMaskSizeLBitClear; |
+ const int num_mask_bytes = (l_bit == 1) ? kUlpfecPacketMaskSizeLBitSet |
danilchap
2016/09/01 16:28:48
probably can use PacketMaskSize(num_media_packets)
|
+ : kUlpfecPacketMaskSizeLBitClear; |
// Equal-protection for these cases. |
if (!use_unequal_protection || num_imp_packets == 0) { |
@@ -394,6 +395,14 @@ void GeneratePacketMasks(int num_media_packets, |
} // End of UEP modification |
} // End of GetPacketMasks |
+size_t PacketMaskSize(size_t num_sequence_numbers) { |
+ RTC_DCHECK_LE(num_sequence_numbers, 8 * kUlpfecPacketMaskSizeLBitSet); |
+ if (num_sequence_numbers > 8 * kUlpfecPacketMaskSizeLBitClear) { |
+ return kUlpfecPacketMaskSizeLBitSet; |
+ } |
+ return kUlpfecPacketMaskSizeLBitClear; |
+} |
+ |
void InsertZeroColumns(int num_zeros, |
uint8_t* new_mask, |
int new_mask_bytes, |