Index: media/base/mime_util.cc |
diff --git a/media/base/mime_util.cc b/media/base/mime_util.cc |
index bb85b91bd2c50a6edbf112c503537abd526953d5..c7085bf3c820a9429b0ffd3aaac62e10fb3df86a 100644 |
--- a/media/base/mime_util.cc |
+++ b/media/base/mime_util.cc |
@@ -24,6 +24,8 @@ class MimeUtil { |
enum Codec { |
INVALID_CODEC, |
PCM, |
+ AC3, |
ddorwin
2015/12/03 23:46:52
nit: It seems these should come after MP3.
servolk
2015/12/21 17:50:57
Done.
|
+ EAC3, |
MP3, |
MPEG2_AAC_LC, |
MPEG2_AAC_MAIN, |
@@ -162,6 +164,11 @@ static bool IsCodecSupportedOnAndroid(MimeUtil::Codec codec) { |
// MPEG-2 variants of AAC are not supported on Android. |
return false; |
+ case MimeUtil::AC3: |
ddorwin
2015/12/03 23:46:52
Should be before 161.
servolk
2015/12/21 17:50:57
Done.
|
+ case MimeUtil::EAC3: |
+ // TODO(servolk): Revisit this for AC3/EAC3 support on AndroidTV |
+ return false; |
+ |
case MimeUtil::VP9: |
// VP9 is supported only in KitKat+ (API Level 19). |
return base::android::BuildInfo::GetInstance()->sdk_int() >= 19; |
@@ -205,6 +212,11 @@ struct MediaFormat { |
// avc1.6400xx - H.264 High |
static const char kMP4AudioCodecsExpression[] = |
"mp4a.66,mp4a.67,mp4a.68,mp4a.69,mp4a.6B,mp4a.40.2,mp4a.40.02,mp4a.40.5," |
+#if defined(ENABLE_AC3_EAC3_AUDIO_DEMUXING) |
+ // Note: only one variant of ac3/eac3 codec string is sufficient here, since |
ddorwin
2015/12/03 23:46:52
variant *each* of ac3 *&* eac3
servolk
2015/12/21 17:50:57
Done.
|
+ // these strings are parsed and mapped to MimeUtil::Codec enum values. |
+ "ac-3,ec-3," |
+#endif |
"mp4a.40.05,mp4a.40.29"; |
static const char kMP4VideoCodecsExpression[] = |
// This is not a complete list of supported avc1 codecs. It is simply used |
@@ -220,6 +232,11 @@ static const char kMP4VideoCodecsExpression[] = |
"hev1.1.6.L93.B0," |
#endif |
"mp4a.66,mp4a.67,mp4a.68,mp4a.69,mp4a.6B,mp4a.40.2,mp4a.40.02,mp4a.40.5," |
+#if defined(ENABLE_AC3_EAC3_AUDIO_DEMUXING) |
+ // Note: only one variant of ac3/eac3 codec string is sufficient here, since |
ddorwin
2015/12/03 23:46:52
ditto
servolk
2015/12/21 17:50:57
Done.
|
+ // these strings are parsed and mapped to MimeUtil::Codec enum values. |
+ "ac-3,ec-3," |
+#endif |
"mp4a.40.05,mp4a.40.29"; |
#endif // USE_PROPRIETARY_CODECS |
@@ -285,6 +302,20 @@ static const CodecIDMappings kUnambiguousCodecStringMap[] = { |
{"mp4a.40.5", MimeUtil::MPEG4_AAC_SBR_v1}, |
{"mp4a.40.05", MimeUtil::MPEG4_AAC_SBR_v1}, |
{"mp4a.40.29", MimeUtil::MPEG4_AAC_SBR_PS_v2}, |
+#if defined(ENABLE_AC3_EAC3_AUDIO_DEMUXING) |
+ // TODO(servolk): Strictly speaking only mp4a.A5 and mp4a.A6 codec ids are |
+ // valid according to RFC 6381 section 3.3, 3.4. Lower-case oti (mp4a.a5 and |
+ // mp4a.a6) should be rejected. But we used to allow those in older versions |
+ // of Chromecast firmware and some apps (notably MPL) depend on those codec |
+ // types being supported, so they should be allowed for now |
+ // (crbug.com/564960) |
ddorwin
2015/12/03 23:46:52
nit: missing period
servolk
2015/12/21 17:50:57
Done.
|
+ {"ac-3", MimeUtil::AC3}, |
+ {"mp4a.a5", MimeUtil::AC3}, |
+ {"mp4a.A5", MimeUtil::AC3}, |
+ {"ec-3", MimeUtil::EAC3}, |
+ {"mp4a.a6", MimeUtil::EAC3}, |
+ {"mp4a.A6", MimeUtil::EAC3}, |
+#endif |
{"vorbis", MimeUtil::VORBIS}, |
{"opus", MimeUtil::OPUS}, |
{"vp8", MimeUtil::VP8}, |
@@ -632,6 +663,8 @@ bool MimeUtil::IsCodecSupported(Codec codec) const { |
bool MimeUtil::IsCodecProprietary(Codec codec) const { |
switch (codec) { |
case INVALID_CODEC: |
+ case AC3: |
+ case EAC3: |
case MP3: |
case MPEG2_AAC_LC: |
case MPEG2_AAC_MAIN: |