Mpeg4 sp hw decoder with imx6dl and imx6q

[jinsensi]

Hi,

We are working with the Imx6 and android.

I'm trying to record and read a video with hardware encoder and decoder. The format I want to use is Mpeg4 sp.

The encoding went well and I can read the video on android, ios and os x. But I can't read the video on the Imx6. I want to use hw encoder and decoder.

Here is my logcat :

E/OMXCodec(  128): Attempting to allocate OMX node 'OMX.Freescale.std.video_decoder.mpeg4.hw-based'

E/OMXCodec(  128): Successfully allocated OMX node 'OMX.Freescale.std.video_decoder.mpeg4.hw-based'

E/OMXCodec(  128): configureCodec protected=0

E/OMXCodec(  128): OMXCOdec: SetVideoPortFormatTypet

E/OMXCodec(  128): OMXCOdec: Index = 0

E/OMX     (  128): OMX : Get parameter

E/OMXNodeInstance(  128): OMXNodeInstance : Get parameter

E/OMXNodeInstance(  128): OMXNodeInstance : Get parameter error : 0

E/OMXCodec(  128): OMXCOdec: Get param error 0 pass

E/OMXCodec(  128): portIndex: 0, index: 0, eCompressionFormat=7 eColorFormat=21

E/OMXCodec(  128): index: 0, MediaCompressionFormat=4 MediaColorFormat =21

/OMXCodec(  128): OMXCOdec: Index = 1

E/OMX     (  128): OMX : Get parameter

E/OMXNodeInstance(  128): OMXNodeInstance : Get parameter

E/OMXNodeInstance(  128): OMXNodeInstance : Get parameter error : 8000100e

E/OMXCodec(  128): OMXCOdec: Get param error : Err = 80000000

E/OMXCodec(  128): Failed to configure codec 'OMX.Freescale.std.video_decoder.mpeg4.hw-based'

typedef enum OMX_VIDEO_CODINGTYPE {

    OMX_VIDEO_CodingUnused,     /**< Value when coding is N/A */

    OMX_VIDEO_CodingAutoDetect, /**< Autodetection of coding type */

    OMX_VIDEO_CodingMPEG2,      /**< AKA: H.262 */

    OMX_VIDEO_CodingH263,       /**< H.263 */

    OMX_VIDEO_CodingMPEG4,      /**< MPEG-4 */

    OMX_VIDEO_CodingWMV,        /**< all versions of Windows Media Video */

    OMX_VIDEO_CodingRV,         /**< all versions of Real Video */

    OMX_VIDEO_CodingAVC,        /**< H.264/AVC */

    OMX_VIDEO_CodingMJPEG,      /**< Motion JPEG */

    OMX_VIDEO_CodingKhronosExtensions = 0x6F000000, /**< Reserved region for introducing Khronos Standard Extensions */

    OMX_VIDEO_CodingVendorStartUnused = 0x7F000000, /**< Reserved region for introducing Vendor Extensions */

    OMX_VIDEO_CodingMax = 0x7FFFFFFF

} OMX_VIDEO_CODINGTYPE;

Refering to OMX_VIDEO_CODINGTYPE, the only compression format found for OMX.Freescale.std.video_decoder.mpeg4.hw-based' is AVC (H264). I've read in the doc that Mpeg4 sp is supported.

So why the Mpeg4 sp codec can't be found for hw decoder ? If I can encode with hw, I should be able to decode ?

Jerome

[joanxie]

when decoding mpeg4 sp streaming, omxplayer uses vpu to decode, you can encode mpeg4 sp by vpu successfully, but decoding failed?

[jinsensi]

Hi, Thanks for you answer. I finally fix the problem.