/* static */
bool
MP4Decoder::CanHandleMediaType(const nsACString& aType,
const nsAString& aCodecs,
bool& aOutContainsAAC,
bool& aOutContainsH264,
bool& aOutContainsMP3)
{
if (!IsEnabled()) {
return false;
}
if (aType.EqualsASCII("audio/mp4") || aType.EqualsASCII("audio/x-m4a")) {
return MP4Decoder::CanCreateAACDecoder() &&
(aCodecs.IsEmpty() ||
IsSupportedAudioCodec(aCodecs,
aOutContainsAAC,
aOutContainsMP3));
}
#ifdef MOZ_GONK_MEDIACODEC
if (aType.EqualsASCII(VIDEO_3GPP)) {
return Preferences::GetBool("media.fragmented-mp4.gonk.enabled", false);
}
#endif
if ((!aType.EqualsASCII("video/mp4") && !aType.EqualsASCII("video/x-m4v")) ||
!MP4Decoder::CanCreateH264Decoder()) {
return false;
}
// Verify that all the codecs specifed are ones that we expect that
// we can play.
nsCharSeparatedTokenizer tokenizer(aCodecs, ',');
bool expectMoreTokens = false;
while (tokenizer.hasMoreTokens()) {
const nsSubstring& token = tokenizer.nextToken();
expectMoreTokens = tokenizer.separatorAfterCurrentToken();
if (IsSupportedAudioCodec(token,
aOutContainsAAC,
aOutContainsMP3)) {
continue;
}
if (IsSupportedH264Codec(token)) {
aOutContainsH264 = true;
continue;
}
return false;
}
if (expectMoreTokens) {
// Last codec name was empty
return false;
}
return true;
}
/* static */
bool
MP4Decoder::CanHandleMediaType(const nsACString& aType,
const nsAString& aCodecs,
bool& aOutContainsAAC,
bool& aOutContainsH264,
bool& aOutContainsMP3)
{
if (!IsEnabled()) {
return false;
}
if (aType.EqualsASCII("audio/mp4") || aType.EqualsASCII("audio/x-m4a")) {
return aCodecs.IsEmpty() ||
IsSupportedAudioCodec(aCodecs,
aOutContainsAAC,
aOutContainsMP3);
}
if (!aType.EqualsASCII("video/mp4")) {
return false;
}
// Verify that all the codecs specifed are ones that we expect that
// we can play.
nsCharSeparatedTokenizer tokenizer(aCodecs, ',');
bool expectMoreTokens = false;
while (tokenizer.hasMoreTokens()) {
const nsSubstring& token = tokenizer.nextToken();
expectMoreTokens = tokenizer.separatorAfterCurrentToken();
if (IsSupportedAudioCodec(token,
aOutContainsAAC,
aOutContainsMP3)) {
continue;
}
if (IsSupportedH264Codec(token)) {
aOutContainsH264 = true;
continue;
}
return false;
}
if (expectMoreTokens) {
// Last codec name was empty
return false;
}
return true;
}
