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Unified Diff: talk/media/base/streamparams.cc

Issue 1587193006: Move talk/media to webrtc/media (Closed) Base URL: https://chromium.googlesource.com/external/webrtc.git@master
Patch Set: Rebased to b647aca12a884a13c1728118586245399b55fa3d (#11493) Created 4 years, 10 months ago
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Index: talk/media/base/streamparams.cc
diff --git a/talk/media/base/streamparams.cc b/talk/media/base/streamparams.cc
deleted file mode 100644
index 2a1e7636bac558fdc97209366d4975fc15ae4b99..0000000000000000000000000000000000000000
--- a/talk/media/base/streamparams.cc
+++ /dev/null
@@ -1,261 +0,0 @@
-/*
- * libjingle
- * Copyright 2011 Google Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
- * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "talk/media/base/streamparams.h"
-
-#include <list>
-#include <sstream>
-
-namespace cricket {
-namespace {
-// NOTE: There is no check here for duplicate streams, so check before
-// adding.
-void AddStream(std::vector<StreamParams>* streams, const StreamParams& stream) {
- streams->push_back(stream);
-}
-}
-
-const char kFecSsrcGroupSemantics[] = "FEC";
-const char kFidSsrcGroupSemantics[] = "FID";
-const char kSimSsrcGroupSemantics[] = "SIM";
-
-bool GetStream(const StreamParamsVec& streams,
- const StreamSelector& selector,
- StreamParams* stream_out) {
- const StreamParams* found = GetStream(streams, selector);
- if (found && stream_out)
- *stream_out = *found;
- return found != nullptr;
-}
-
-bool MediaStreams::GetAudioStream(
- const StreamSelector& selector, StreamParams* stream) {
- return GetStream(audio_, selector, stream);
-}
-
-bool MediaStreams::GetVideoStream(
- const StreamSelector& selector, StreamParams* stream) {
- return GetStream(video_, selector, stream);
-}
-
-bool MediaStreams::GetDataStream(
- const StreamSelector& selector, StreamParams* stream) {
- return GetStream(data_, selector, stream);
-}
-
-void MediaStreams::CopyFrom(const MediaStreams& streams) {
- audio_ = streams.audio_;
- video_ = streams.video_;
- data_ = streams.data_;
-}
-
-void MediaStreams::AddAudioStream(const StreamParams& stream) {
- AddStream(&audio_, stream);
-}
-
-void MediaStreams::AddVideoStream(const StreamParams& stream) {
- AddStream(&video_, stream);
-}
-
-void MediaStreams::AddDataStream(const StreamParams& stream) {
- AddStream(&data_, stream);
-}
-
-bool MediaStreams::RemoveAudioStream(
- const StreamSelector& selector) {
- return RemoveStream(&audio_, selector);
-}
-
-bool MediaStreams::RemoveVideoStream(
- const StreamSelector& selector) {
- return RemoveStream(&video_, selector);
-}
-
-bool MediaStreams::RemoveDataStream(
- const StreamSelector& selector) {
- return RemoveStream(&data_, selector);
-}
-
-static std::string SsrcsToString(const std::vector<uint32_t>& ssrcs) {
- std::ostringstream ost;
- ost << "ssrcs:[";
- for (std::vector<uint32_t>::const_iterator it = ssrcs.begin();
- it != ssrcs.end(); ++it) {
- if (it != ssrcs.begin()) {
- ost << ",";
- }
- ost << *it;
- }
- ost << "]";
- return ost.str();
-}
-
-bool SsrcGroup::has_semantics(const std::string& semantics_in) const {
- return (semantics == semantics_in && ssrcs.size() > 0);
-}
-
-std::string SsrcGroup::ToString() const {
- std::ostringstream ost;
- ost << "{";
- ost << "semantics:" << semantics << ";";
- ost << SsrcsToString(ssrcs);
- ost << "}";
- return ost.str();
-}
-
-std::string StreamParams::ToString() const {
- std::ostringstream ost;
- ost << "{";
- if (!groupid.empty()) {
- ost << "groupid:" << groupid << ";";
- }
- if (!id.empty()) {
- ost << "id:" << id << ";";
- }
- ost << SsrcsToString(ssrcs) << ";";
- ost << "ssrc_groups:";
- for (std::vector<SsrcGroup>::const_iterator it = ssrc_groups.begin();
- it != ssrc_groups.end(); ++it) {
- if (it != ssrc_groups.begin()) {
- ost << ",";
- }
- ost << it->ToString();
- }
- ost << ";";
- if (!type.empty()) {
- ost << "type:" << type << ";";
- }
- if (!display.empty()) {
- ost << "display:" << display << ";";
- }
- if (!cname.empty()) {
- ost << "cname:" << cname << ";";
- }
- if (!sync_label.empty()) {
- ost << "sync_label:" << sync_label;
- }
- ost << "}";
- return ost.str();
-}
-void StreamParams::GetPrimarySsrcs(std::vector<uint32_t>* ssrcs) const {
- const SsrcGroup* sim_group = get_ssrc_group(kSimSsrcGroupSemantics);
- if (sim_group == NULL) {
- ssrcs->push_back(first_ssrc());
- } else {
- for (size_t i = 0; i < sim_group->ssrcs.size(); ++i) {
- ssrcs->push_back(sim_group->ssrcs[i]);
- }
- }
-}
-
-void StreamParams::GetFidSsrcs(const std::vector<uint32_t>& primary_ssrcs,
- std::vector<uint32_t>* fid_ssrcs) const {
- for (size_t i = 0; i < primary_ssrcs.size(); ++i) {
- uint32_t fid_ssrc;
- if (GetFidSsrc(primary_ssrcs[i], &fid_ssrc)) {
- fid_ssrcs->push_back(fid_ssrc);
- }
- }
-}
-
-bool StreamParams::AddSecondarySsrc(const std::string& semantics,
- uint32_t primary_ssrc,
- uint32_t secondary_ssrc) {
- if (!has_ssrc(primary_ssrc)) {
- return false;
- }
-
- ssrcs.push_back(secondary_ssrc);
- std::vector<uint32_t> ssrc_vector;
- ssrc_vector.push_back(primary_ssrc);
- ssrc_vector.push_back(secondary_ssrc);
- SsrcGroup ssrc_group = SsrcGroup(semantics, ssrc_vector);
- ssrc_groups.push_back(ssrc_group);
- return true;
-}
-
-bool StreamParams::GetSecondarySsrc(const std::string& semantics,
- uint32_t primary_ssrc,
- uint32_t* secondary_ssrc) const {
- for (std::vector<SsrcGroup>::const_iterator it = ssrc_groups.begin();
- it != ssrc_groups.end(); ++it) {
- if (it->has_semantics(semantics) &&
- it->ssrcs.size() >= 2 &&
- it->ssrcs[0] == primary_ssrc) {
- *secondary_ssrc = it->ssrcs[1];
- return true;
- }
- }
- return false;
-}
-
-bool IsOneSsrcStream(const StreamParams& sp) {
- if (sp.ssrcs.size() == 1 && sp.ssrc_groups.empty()) {
- return true;
- }
- if (sp.ssrcs.size() == 2) {
- const SsrcGroup* fid_group = sp.get_ssrc_group(kFidSsrcGroupSemantics);
- if (fid_group != NULL) {
- return (sp.ssrcs == fid_group->ssrcs);
- }
- }
- return false;
-}
-
-static void RemoveFirst(std::list<uint32_t>* ssrcs, uint32_t value) {
- std::list<uint32_t>::iterator it =
- std::find(ssrcs->begin(), ssrcs->end(), value);
- if (it != ssrcs->end()) {
- ssrcs->erase(it);
- }
-}
-
-bool IsSimulcastStream(const StreamParams& sp) {
- const SsrcGroup* const sg = sp.get_ssrc_group(kSimSsrcGroupSemantics);
- if (sg == NULL || sg->ssrcs.size() < 2) {
- return false;
- }
- // Start with all StreamParams SSRCs. Remove simulcast SSRCs (from sg) and
- // RTX SSRCs. If we still have SSRCs left, we don't know what they're for.
- // Also we remove first-found SSRCs only. So duplicates should lead to errors.
- std::list<uint32_t> sp_ssrcs(sp.ssrcs.begin(), sp.ssrcs.end());
- for (size_t i = 0; i < sg->ssrcs.size(); ++i) {
- RemoveFirst(&sp_ssrcs, sg->ssrcs[i]);
- }
- for (size_t i = 0; i < sp.ssrc_groups.size(); ++i) {
- const SsrcGroup& group = sp.ssrc_groups[i];
- if (group.semantics.compare(kFidSsrcGroupSemantics) != 0 ||
- group.ssrcs.size() != 2) {
- continue;
- }
- RemoveFirst(&sp_ssrcs, group.ssrcs[1]);
- }
- // If there's SSRCs left that we don't know how to handle, we bail out.
- return sp_ssrcs.size() == 0;
-}
-
-} // namespace cricket
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