summaryrefslogtreecommitdiffstats
path: root/third_party/libwebrtc/api/video_codecs/sdp_video_format.h
diff options
context:
space:
mode:
Diffstat (limited to 'third_party/libwebrtc/api/video_codecs/sdp_video_format.h')
-rw-r--r--third_party/libwebrtc/api/video_codecs/sdp_video_format.h75
1 files changed, 75 insertions, 0 deletions
diff --git a/third_party/libwebrtc/api/video_codecs/sdp_video_format.h b/third_party/libwebrtc/api/video_codecs/sdp_video_format.h
new file mode 100644
index 0000000000..faaa66c241
--- /dev/null
+++ b/third_party/libwebrtc/api/video_codecs/sdp_video_format.h
@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef API_VIDEO_CODECS_SDP_VIDEO_FORMAT_H_
+#define API_VIDEO_CODECS_SDP_VIDEO_FORMAT_H_
+
+#include <map>
+#include <string>
+
+#include "absl/container/inlined_vector.h"
+#include "absl/types/optional.h"
+#include "api/array_view.h"
+#include "api/video_codecs/scalability_mode.h"
+#include "rtc_base/system/rtc_export.h"
+
+namespace webrtc {
+
+// SDP specification for a single video codec.
+// NOTE: This class is still under development and may change without notice.
+struct RTC_EXPORT SdpVideoFormat {
+ using Parameters = std::map<std::string, std::string>;
+
+ explicit SdpVideoFormat(const std::string& name);
+ SdpVideoFormat(const std::string& name, const Parameters& parameters);
+ SdpVideoFormat(
+ const std::string& name,
+ const Parameters& parameters,
+ const absl::InlinedVector<ScalabilityMode, kScalabilityModeCount>&
+ scalability_modes);
+ SdpVideoFormat(const SdpVideoFormat&);
+ SdpVideoFormat(SdpVideoFormat&&);
+ SdpVideoFormat& operator=(const SdpVideoFormat&);
+ SdpVideoFormat& operator=(SdpVideoFormat&&);
+
+ ~SdpVideoFormat();
+
+ // Returns true if the SdpVideoFormats have the same names as well as codec
+ // specific parameters. Please note that two SdpVideoFormats can represent the
+ // same codec even though not all parameters are the same.
+ bool IsSameCodec(const SdpVideoFormat& other) const;
+ bool IsCodecInList(
+ rtc::ArrayView<const webrtc::SdpVideoFormat> formats) const;
+
+ std::string ToString() const;
+
+ friend RTC_EXPORT bool operator==(const SdpVideoFormat& a,
+ const SdpVideoFormat& b);
+ friend RTC_EXPORT bool operator!=(const SdpVideoFormat& a,
+ const SdpVideoFormat& b) {
+ return !(a == b);
+ }
+
+ std::string name;
+ Parameters parameters;
+ absl::InlinedVector<ScalabilityMode, kScalabilityModeCount> scalability_modes;
+};
+
+// For not so good reasons sometimes additional parameters are added to an
+// SdpVideoFormat, which makes instances that should compare equal to not match
+// anymore. Until we stop misusing SdpVideoFormats provide this convenience
+// function to perform fuzzy matching.
+absl::optional<SdpVideoFormat> FuzzyMatchSdpVideoFormat(
+ rtc::ArrayView<const SdpVideoFormat> supported_formats,
+ const SdpVideoFormat& format);
+
+} // namespace webrtc
+
+#endif // API_VIDEO_CODECS_SDP_VIDEO_FORMAT_H_