问题
I am trying to use MediaCodec
API to decode and display an MPEG2
encoded stream. I use MediaExtractor
to extract the stream from an MPEG Transport Stream (TS
).
I notice that configure()
of the decoder is failing on all devices that I have tried - Nexus7(2012), Nexus7(2013), Nexus10, with error code 0x80001001.
The only parameter that can go wrong in using the configure()
API is the MediaFormat
configuration provided and this is obtained from the Android MediaExtractor
. I do not understand what could be going wrong resulting in this issue getting noticed.
The configuration parameters present in the MediaFormat
object are:
1. `CSD-0` - Containing Sequence header and sequence extension header.
Seq_Hdr - 00 00 01 B3 2D 01 E0 24 09 C4 23 80
Seq_extnsn - 00 00 01 B5 14 8A 00 01 00 80
2. Height - 480
3. Width - 720
4. KEY_MIME - `video/mpeg2`
The error is somewhat similar on all devices, which might mean that the error is perhaps originating from a common entity in the MediaCodec
stack. Here is the error from Nexus7 (2013). (0x80001001 – OMX_ErrorUndefined)
E/ACodec ( 6504): [OMX.qcom.video.decoder.mpeg2] configureCodec returning error -1010
E/MediaCodec( 6504): Codec reported an error. (omx error 0x80001001, internalError -1010)
Is this behavior because MPEG2
is not a mandatory codec to be supported on Android platforms or am I doing something wrong? Any information on the behavior of MPEG2
decoder will be greatly appreciated.
回答1:
On your device, look at /system/etc/media_codecs.xml
to see the list.
My understanding is that, on current Nexus devices, MPEG-2 video compression is not supported.
来源:https://stackoverflow.com/questions/23687232/android-mediacodec-usage-for-decoding-mpeg2-video-stream