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Android: Use RTP timestamp instead of capture_time_ms_ in VideoDecoderWrapper.

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capture_time_ms_ is always 0 for frames received from the network. This
caused a bug because it was used as an unique identified.

Bug: b/68271454
Change-Id: Ic4417a52e61cf2b0cd796a89207a90b603a16590
Reviewed-on: https://webrtc-review.googlesource.com/24940
Reviewed-by: Magnus Jedvert <magjed@webrtc.org>
Commit-Queue: Sami Kalliomäki <sakal@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#20837}
This commit is contained in:
Sami Kalliomäki
2017-11-22 13:20:11 +01:00
committed by Commit Bot
parent 1882d8509a
commit ce86e2965c
2 changed files with 19 additions and 6 deletions
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22
sdk/android/src/jni/videodecoderwrapper.cc
View File

@ -26,6 +26,9 @@ namespace webrtc {
namespace jni {
namespace {
// RTP timestamps are 90 kHz.
const int64_t kNumRtpTicksPerMillisec = 90000 / rtc::kNumMillisecsPerSec;
template <typename Dst, typename Src>
inline rtc::Optional<Dst> cast_optional(const rtc::Optional<Src>& value) {
return value ? rtc::Optional<Dst>(rtc::dchecked_cast<Dst, Src>(*value))
@ -74,7 +77,7 @@ int32_t VideoDecoderWrapper::InitDecodeInternal(JNIEnv* jni) {
}
int32_t VideoDecoderWrapper::Decode(
const EncodedImage& input_image,
const EncodedImage& image_param,
bool missing_frames,
const RTPFragmentationHeader* fragmentation,
const CodecSpecificInfo* codec_specific_info,
@ -87,10 +90,17 @@ int32_t VideoDecoderWrapper::Decode(
JNIEnv* jni = AttachCurrentThreadIfNeeded();
ScopedLocalRefFrame local_ref_frame(jni);
// Make a mutable copy so we can modify the timestamp.
EncodedImage input_image(image_param);
// We use RTP timestamp for capture time because capture_time_ms_ is always 0.
input_image.capture_time_ms_ =
input_image._timeStamp / kNumRtpTicksPerMillisec;
FrameExtraInfo frame_extra_info;
frame_extra_info.capture_time_ns =
frame_extra_info.timestamp_ns =
input_image.capture_time_ms_ * rtc::kNumNanosecsPerMillisec;
frame_extra_info.timestamp_rtp = input_image._timeStamp;
frame_extra_info.timestamp_ntp = input_image.ntp_time_ms_;
frame_extra_info.qp =
qp_parsing_enabled_ ? ParseQP(input_image) : rtc::nullopt;
frame_extra_infos_.push_back(frame_extra_info);
@ -129,12 +139,13 @@ void VideoDecoderWrapper::OnDecodedFrame(JNIEnv* env,
jobject j_frame,
jobject j_decode_time_ms,
jobject j_qp) {
const uint64_t capture_time_ns = GetJavaVideoFrameTimestampNs(env, j_frame);
const uint64_t timestamp_ns = GetJavaVideoFrameTimestampNs(env, j_frame);
FrameExtraInfo frame_extra_info;
do {
if (frame_extra_infos_.empty()) {
RTC_LOG(LS_WARNING) << "Java decoder produced an unexpected frame.";
RTC_LOG(LS_WARNING) << "Java decoder produced an unexpected frame: "
<< timestamp_ns;
return;
}
@ -142,10 +153,11 @@ void VideoDecoderWrapper::OnDecodedFrame(JNIEnv* env,
frame_extra_infos_.pop_front();
// If the decoder might drop frames so iterate through the queue until we
// find a matching timestamp.
} while (frame_extra_info.capture_time_ns != capture_time_ns);
} while (frame_extra_info.timestamp_ns != timestamp_ns);
VideoFrame frame =
JavaToNativeFrame(env, j_frame, frame_extra_info.timestamp_rtp);
frame.set_ntp_time_ms(frame_extra_info.timestamp_ntp);
rtc::Optional<int32_t> decoding_time_ms =
JavaIntegerToOptionalInt(env, j_decode_time_ms);

3
sdk/android/src/jni/videodecoderwrapper.h
View File

@ -56,9 +56,10 @@ class VideoDecoderWrapper : public VideoDecoder {
private:
struct FrameExtraInfo {
uint64_t capture_time_ns; // Used as an identifier of the frame.
int64_t timestamp_ns; // Used as an identifier of the frame.
uint32_t timestamp_rtp;
int64_t timestamp_ntp;
rtc::Optional<uint8_t> qp;
};