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Make an AudioEncoder subclass for RED

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This class only supports the simple case of payload duplication. That
is, one single encoder is used, and the redundant payload is a one-step
delayed payload.

BUG=3926
R=kjellander@webrtc.org, kwiberg@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/31199004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@7913 4adac7df-926f-26a2-2b94-8c16560cd09d
This commit is contained in:
henrik.lundin@webrtc.org
2014-12-16 13:41:36 +00:00
parent 88bdec8c3a
commit c1c9291e9b
17 changed files with 624 additions and 6 deletions
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25
webrtc/modules/audio_coding/codecs/audio_encoder.h
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@ -12,6 +12,7 @@
#define WEBRTC_MODULES_AUDIO_CODING_CODECS_AUDIO_ENCODER_H_
#include <algorithm>
#include <vector>
#include "webrtc/base/checks.h"
#include "webrtc/typedefs.h"
@ -19,17 +20,35 @@
namespace webrtc {
// This is the interface class for encoders in AudioCoding module. Each codec
// codec type must have an implementation of this class.
// type must have an implementation of this class.
class AudioEncoder {
public:
struct EncodedInfo {
EncodedInfo() : encoded_bytes(0), encoded_timestamp(0), payload_type(0) {}
struct EncodedInfoLeaf {
EncodedInfoLeaf()
: encoded_bytes(0), encoded_timestamp(0), payload_type(0) {}
size_t encoded_bytes;
uint32_t encoded_timestamp;
int payload_type;
};
// This is the main struct for auxiliary encoding information. Each encoded
// packet should be accompanied by one EncodedInfo struct, containing the
// total number of |encoded_bytes|, the |encoded_timestamp| and the
// |payload_type|. If the packet contains redundant encodings, the |redundant|
// vector will be populated with EncodedInfoLeaf structs. Each struct in the
// vector represents one encoding; the order of structs in the vector is the
// same as the order in which the actual payloads are written to the byte
// stream. When EncoderInfoLeaf structs are present in the vector, the main
// struct's |encoded_bytes| will be the sum of all the |encoded_bytes| in the
// vector.
struct EncodedInfo : public EncodedInfoLeaf {
EncodedInfo();
~EncodedInfo();
std::vector<EncodedInfoLeaf> redundant;
};
virtual ~AudioEncoder() {}
// Accepts one 10 ms block of input audio (i.e., sample_rate_hz() / 100 *