打开omx log，看到是因为在mediacodec configure的时候设置的color format不对，因为之前用的是input buffer的方式，现在想用input surface来给video encoder送数据。
OMXNodeInstance: [0xf6a1a884:qcom.encoder.avc] createInputSurface requires COLOR_FormatSurface (AndroidOpaque) color format instead of COLOR_FormatYUV420SemiPlanar(0x15)
msm_vidc: high: 00000001: h264e: msm_venc_s_ctrl: name Frame Rate, id 0x992077 value 1966080
msm_vidc: high: 00000001: h264e: msm_vidc_calculate_input_buffer_count: input min 4 min_host 8 actual 8
msm_vidc: high: 00000001: h264e: msm_vidc_calculate_output_buffer_count: output min 4 min_host 4 actual 4
TWGraphicBufferSource: Unable to set input surface: -38
ACodec : [OMX.qcom.video.encoder.avc] Unable to configure for node (err -38)
ACodec : [OMX.qcom.video.encoder.avc] onCreateInputSurface returning error -38
MediaCodec: createInputSurface failed, err=-38
NdkMediaCodec: sf error code: -38
修改为COLOR_FormatSurface即可：
COLOR_FormatSurface
public static final int COLOR_FormatSurface
Constant Value: 2130708361 (0x7f000789)
