I have a simple program where I am trying to get video out of the camera and run it through a omxh264enc. The element linking is shown below:
gst_element_link (source, cFilter0);
gst_element_link (cFilter0, encoder);
gst_element_link (encoder, cFilter1);
gst_element_link (cFilter1, autovs);
However I get the errors as shown below:
Framerate set to : 30 at NvxVideoEncoderSetParameter0:00:00.609624260 3087 0x683850 ERROR omxh264enc gstomxh264enc.c:280:gst_omx_h264_enc_set_format:<264encoder> Empty caps
0:00:00.609644260 3087 0x683850 ERROR omxvideoenc gstomxvideoenc.c:1815:gst_omx_video_enc_set_format:<264encoder> Subclass failed to set the new format
0:00:00.609656996 3087 0x683850 WARN videoencoder gstvideoencoder.c:623:gst_video_encoder_setcaps:<264encoder> rejected caps video/x-raw(memory:NVMM), width=(int)640, height=(int)480, format=(string)I420, framerate=(fraction)30/1
0:00:00.609696708 3087 0x683850 INFO basesrc gstbasesrc.c:2843:gst_base_src_loop:<camerasrc> marking pending DISCONT
0:00:00.609804004 3087 0x683850 FIXME videoencoder gstvideoencoder.c:606:gst_video_encoder_setcaps:<264encoder> GstVideoEncoder::reset() is deprecated
Framerate set to : 30 at NvxVideoEncoderSetParameter0:00:00.609876579 3087 0x683850 ERROR omxh264enc gstomxh264enc.c:280:gst_omx_h264_enc_set_format:<264encoder> Empty caps
0:00:00.609890819 3087 0x683850 ERROR omxvideoenc gstomxvideoenc.c:1815:gst_omx_video_enc_set_format:<264encoder> Subclass failed to set the new format
0:00:00.609903779 3087 0x683850 WARN videoencoder gstvideoencoder.c:623:gst_video_encoder_setcaps:<264encoder> rejected caps video/x-raw(memory:NVMM), width=(int)640, height=(int)480, format=(string)I420, framerate=(fraction)30/1
0:00:00.609955843 3087 0x683850 WARN basesrc gstbasesrc.c:2948:gst_base_src_loop:<camerasrc> error: Internal data flow error.
0:00:00.609971683 3087 0x683850 WARN basesrc gstbasesrc.c:2948:gst_base_src_loop:<camerasrc> error: streaming task paused, reason not-negotiated (-4)
0:00:00.610001219 3087 0x683850 INFO GST_ERROR_SYSTEM gstelement.c:1879:gst_element_message_full:<camerasrc> posting message: Internal data flow error.
0:00:00.610046498 3087 0x683850 INFO GST_ERROR_SYSTEM gstelement.c:1902:gst_element_message_full:<camerasrc> posted error message: Internal data flow error.
0:00:00.610141602 3087 0x683850 FIXME videoencoder gstvideoencoder.c:606:gst_video_encoder_setcaps:<264encoder> GstVideoEncoder::reset() is deprecated
0:00:00.610159906 3087 0x683850 ERROR omx gstomx.c:256:gst_omx_component_handle_messages:<264encoder> encoder port 0 was not flushing
0:00:00.610175682 3087 0x683850 ERROR omx gstomx.c:256:gst_omx_component_handle_messages:<264encoder> encoder port 1 was not flushing
Framerate set to : 30 at NvxVideoEncoderSetParameter0:00:00.610238113 3087 0x683850 ERROR omxh264enc gstomxh264enc.c:280:gst_omx_h264_enc_set_format:<264encoder> Empty caps
0:00:00.610250977 3087 0x683850 ERROR omxvideoenc gstomxvideoenc.c:1815:gst_omx_video_enc_set_format:<264encoder> Subclass failed to set the new format
0:00:00.610262593 3087 0x683850 WARN videoencoder gstvideoencoder.c:623:gst_video_encoder_setcaps:<264encoder> rejected caps video/x-raw(memory:NVMM), width=(int)640, height=(int)480, format=(string)I420, framerate=(fraction)30/1
0:00:00.610340385 3087 0x683850 FIXME videoencoder gstvideoencoder.c:606:gst_video_encoder_setcaps:<264encoder> GstVideoEncoder::reset() is deprecated
0:00:00.610353953 3087 0x683850 ERROR omx gstomx.c:256:gst_omx_component_handle_messages:<264encoder> encoder port 0 was not flushing
0:00:00.610367521 3087 0x683850 ERROR omx gstomx.c:256:gst_omx_component_handle_messages:<264encoder> encoder port 1 was not flushing
Framerate set to : 30 at NvxVideoEncoderSetParameter0:00:00.610422529 3087 0x683850 ERROR omxh264enc gstomxh264enc.c:280:gst_omx_h264_enc_set_format:<264encoder> Empty caps
0:00:00.610434753 3087 0x683850 ERROR omxvideoenc gstomxvideoenc.c:1815:gst_omx_video_enc_set_format:<264encoder> Subclass failed to set the new format
0:00:00.610447360 3087 0x683850 WARN videoencoder gstvideoencoder.c:623:gst_video_encoder_setcaps:<264encoder> rejected caps video/x-raw(memory:NVMM), width=(int)640, height=(int)480, format=(string)I420, framerate=(fraction)30/1
0:00:00.610519680 3087 0x683850 INFO GST_STATES gstbin.c:3238:bin_handle_async_done:<avs> committing state from READY to PAUSED, old pending PAUSED
0:00:00.610551008 3087 0x683850 INFO GST_STATES gstbin.c:3258:bin_handle_async_done:<avs> completed state change, pending VOID
0:00:00.610564192 3087 0x683850 INFO GST_STATES gstelement.c:2277:_priv_gst_element_state_changed:<avs> notifying about state-changed READY to PAUSED (VOID_PENDING pending)
0:00:00.610609216 3087 0x683ed0 INFO task gsttask.c:318:gst_task_func:<264encoder:src> Task resume from paused
0:00:00.610625792 3087 0x683ed0 ERROR omx gstomx.c:256:gst_omx_component_handle_messages:<264encoder> encoder port 0 was not flushing
0:00:00.610641536 3087 0x683ed0 ERROR omx gstomx.c:256:gst_omx_component_handle_messages:<264encoder> encoder port 1 was not flushing
After extensively observing the caps, and using gst-inspect-1.0, it looks like the caps between the source and the encoder should be accepted, especially since I have set up a caps filter too. However, this isn’t happening, and I have no idea as to why this is the case.