| /* |
| * libjingle |
| * Copyright 2004--2007, 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/session/phone/codec.h" |
| |
| #include <sstream> |
| |
| #include "talk/base/stringutils.h" |
| |
| namespace cricket { |
| |
| static const int kMaxStaticPayloadId = 95; |
| |
| bool AudioCodec::Matches(int payload, const std::string& nm) const { |
| // Match the codec id/name based on the typical static/dynamic name rules. |
| // Matching is case-insensitive. |
| return (payload <= kMaxStaticPayloadId) ? |
| (id == payload) : (_stricmp(name.c_str(), nm.c_str()) == 0); |
| } |
| |
| bool AudioCodec::Matches(const AudioCodec& codec) const { |
| // If a nonzero clockrate is specified, it must match the actual clockrate. |
| // If a nonzero bitrate is specified, it must match the actual bitrate, |
| // unless the codec is VBR (0), where we just force the supplied value. |
| // The number of channels must match exactly. |
| // Preference is ignored. |
| // TODO: Treat a zero clockrate as 8000Hz, the RTP default clockrate. |
| return Matches(codec.id, codec.name) && |
| ((codec.clockrate == 0 /*&& clockrate == 8000*/) || |
| clockrate == codec.clockrate) && |
| (codec.bitrate == 0 || bitrate <= 0 || bitrate == codec.bitrate) && |
| (codec.channels == 0 || channels == codec.channels); |
| } |
| |
| std::string AudioCodec::ToString() const { |
| std::ostringstream os; |
| os << "AudioCodec[" << id << ":" << name << ":" << clockrate << ":" << bitrate |
| << ":" << channels << ":" << preference << "]"; |
| return os.str(); |
| } |
| |
| bool VideoCodec::Matches(int payload, const std::string& nm) const { |
| // Match the codec id/name based on the typical static/dynamic name rules. |
| // Matching is case-insensitive. |
| return (payload <= kMaxStaticPayloadId) ? |
| (id == payload) : (_stricmp(name.c_str(), nm.c_str()) == 0); |
| } |
| |
| bool VideoCodec::Matches(const VideoCodec& codec) const { |
| // Only the id and name are matched. |
| return Matches(codec.id, codec.name); |
| } |
| |
| std::string VideoCodec::ToString() const { |
| std::ostringstream os; |
| os << "VideoCodec[" << id << ":" << name << ":" << width << ":" << height |
| << ":" << framerate << ":" << preference << "]"; |
| return os.str(); |
| } |
| |
| } // namespace cricket |