Gstreamer v4l2src: Failed to allocate required memory
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Hi,
I'm writing a v4l2 driver but I've some problems when is used by gstreamer pipeline. I've implemented theese ioctl operations: vidioc_querycap vidioc_s_fmt_vid_cap vidioc_try_fmt_vid_cap vidioc_enum_frameintervals vidioc_enum_framesizes vidioc_enum_input vidioc_enum_fmt_vid_cap When I run the gstreamer pipeline (gst-launch-1.0 v4l2src ! video/x-raw,format=RGB,width=4096,height=2160,framerate=60/1 ! fakesink) I receive this error: /*ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Failed to allocate required memory. Additional debug info: ../../../git/sys/v4l2/gstv4l2src.c(555): gst_v4l2src_decide_allocation (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Buffer pool activation failed*/ This is some of the debug output from gstreamer: /* DEBUG v4l2 gstv4l2object.c:2858:gst_v4l2_object_setup_pool:<v4l2src0> initializing the capture system INFO v4l2 gstv4l2object.c:2882:gst_v4l2_object_setup_pool:<v4l2src0> accessing buffers via mode 1 LOG v4l2 gstv4l2object.c:2891:gst_v4l2_object_setup_pool:<v4l2src0> initiating buffer pool DEBUG v4l2 gstv4l2object.c:4035:gst_v4l2_object_decide_allocation:<v4l2src0> decide allocation DEBUG v4l2 gstv4l2object.c:4061:gst_v4l2_object_decide_allocation:<v4l2src0> allocation: size:0 min:0 max:0 pool:(NULL) DEBUG v4l2 gstv4l2object.c:4088:gst_v4l2_object_decide_allocation:<v4l2src0> read/write mode: no downstream pool, using our own DEBUG v4l2 gstv4l2object.c:4195:gst_v4l2_object_decide_allocation:<v4l2src0> setting own pool config to GstBufferPoolConfig, caps=(GstCaps)"video/x-raw\,\ format\=\(string\)RGB\,\ width\=\(int\)4096\,\ height\=\(int\)2160\,\ framerate\=\(fraction\)60/1\,\ pixel-aspect-ratio\=\(fraction\)1/1\,\ interlace-mode\=\(string\)progressive", size=(uint)26542080, min-buffers=(uint)4, max-buffers=(uint)0, allocator=(GstAllocator)"NULL", params=(GstAllocationParams)NULL; ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Failed to allocate required memory. Additional debug info: ../../../git/sys/v4l2/gstv4l2src.c(555): gst_v4l2src_decide_allocation (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Buffer pool activation failed Execution ended after 0:00:00.410428919 Setting pipeline to PAUSED ... LOG v4l2 gstv4l2object.c:3913:gst_v4l2_object_unlock:<v4l2src0> start flushing Setting pipeline to READY ... LOG v4l2 gstv4l2object.c:3913:gst_v4l2_object_unlock:<v4l2src0> start flushing LOG v4l2 gstv4l2object.c:3926:gst_v4l2_object_unlock_stop:<v4l2src0> stop flushing DEBUG v4l2 gstv4l2object.c:3937:gst_v4l2_object_stop:<v4l2src0> stopping DEBUG v4l2 gstv4l2object.c:3945:gst_v4l2_object_stop:<v4l2src0> deactivating pool Setting pipeline to NULL ... DEBUG v4l2 v4l2_calls.c:719:gst_v4l2_close:<v4l2src0> Trying to close /dev/video0 DEBUG v4l2 v4l2_calls.c:464:gst_v4l2_empty_lists:<v4l2src0> deleting enumerations Freeing pipeline ...*/ I can't find the cause of the error, maybe I forgot an ioctl operation? Thank you -- Sent from: http://gstreamer-devel.966125.n4.nabble.com/ _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
Re: Gstreamer v4l2src: Failed to allocate required memory
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Le lundi 25 mars 2019 à 02:22 -0500, Andrea a écrit :
> Hi, > I'm writing a v4l2 driver but I've some problems when is used by gstreamer > pipeline. I've implemented theese ioctl operations: Have you considered running v4l2-compliance test suite from v4l-utils ? It is generally a much easier place to start when validating a V4L2 driver then GStreamer. It's much more low level and the error message are written for Kernel devs. https://git.linuxtv.org/v4l-utils.git/ > > vidioc_querycap > vidioc_s_fmt_vid_cap > vidioc_try_fmt_vid_cap No g_fmt ? > vidioc_enum_frameintervals > vidioc_enum_framesizes > vidioc_enum_input > vidioc_enum_fmt_vid_cap > When I run the gstreamer pipeline (gst-launch-1.0 v4l2src ! > video/x-raw,format=RGB,width=4096,height=2160,framerate=60/1 ! fakesink) I > receive this error: Un-related, but use fakevideosink for testing v4l2src. This is the only way to avoid copy path. > > /*ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Failed to > allocate required memory. > Additional debug info: > ../../../git/sys/v4l2/gstv4l2src.c(555): gst_v4l2src_decide_allocation (): > /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: > Buffer pool activation failed*/ > > This is some of the debug output from gstreamer: > /* > DEBUG v4l2 > gstv4l2object.c:2858:gst_v4l2_object_setup_pool:<v4l2src0> initializing the > capture system > INFO v4l2 > gstv4l2object.c:2882:gst_v4l2_object_setup_pool:<v4l2src0> accessing buffers > via mode 1 > LOG v4l2 > gstv4l2object.c:2891:gst_v4l2_object_setup_pool:<v4l2src0> initiating buffer > pool > DEBUG v4l2 > gstv4l2object.c:4035:gst_v4l2_object_decide_allocation:<v4l2src0> decide > allocation > DEBUG v4l2 > gstv4l2object.c:4061:gst_v4l2_object_decide_allocation:<v4l2src0> > allocation: size:0 min:0 max:0 pool:(NULL) > DEBUG v4l2 > gstv4l2object.c:4088:gst_v4l2_object_decide_allocation:<v4l2src0> read/write > mode: no downstream pool, using our own > DEBUG v4l2 > gstv4l2object.c:4195:gst_v4l2_object_decide_allocation:<v4l2src0> setting > own pool config to GstBufferPoolConfig, caps=(GstCaps)"video/x-raw\,\ > format\=\(string\)RGB\,\ width\=\(int\)4096\,\ height\=\(int\)2160\,\ > framerate\=\(fraction\)60/1\,\ pixel-aspect-ratio\=\(fraction\)1/1\,\ > interlace-mode\=\(string\)progressive", size=(uint)26542080, > min-buffers=(uint)4, max-buffers=(uint)0, allocator=(GstAllocator)"NULL", > params=(GstAllocationParams)NULL; > ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Failed to > allocate required memory. This is just a high level error saying that the buffer pool failed to start. The buffer pool is doing a bit too much in my opinion, basically it could fail at many stages, including for non-kernel related issues. Try enabling more traces, like GST_DEBUG="v4l2*:7". Also, try most recent version of GStreamer (head of 1.14 branch, or master branch), sometimes we already have patches queued for the following release. > Additional debug info: > ../../../git/sys/v4l2/gstv4l2src.c(555): gst_v4l2src_decide_allocation (): > /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: > Buffer pool activation failed > Execution ended after 0:00:00.410428919 > Setting pipeline to PAUSED ... > LOG v4l2 > gstv4l2object.c:3913:gst_v4l2_object_unlock:<v4l2src0> start flushing > Setting pipeline to READY ... > LOG v4l2 > gstv4l2object.c:3913:gst_v4l2_object_unlock:<v4l2src0> start flushing > LOG v4l2 > gstv4l2object.c:3926:gst_v4l2_object_unlock_stop:<v4l2src0> stop flushing > DEBUG v4l2 > gstv4l2object.c:3937:gst_v4l2_object_stop:<v4l2src0> stopping > DEBUG v4l2 > gstv4l2object.c:3945:gst_v4l2_object_stop:<v4l2src0> deactivating pool > Setting pipeline to NULL ... > DEBUG v4l2 v4l2_calls.c:719:gst_v4l2_close:<v4l2src0> > Trying to close /dev/video0 > DEBUG v4l2 > v4l2_calls.c:464:gst_v4l2_empty_lists:<v4l2src0> deleting enumerations > Freeing pipeline ...*/ > > I can't find the cause of the error, maybe I forgot an ioctl operation? > > Thank you > > > > -- > Sent from: http://gstreamer-devel.966125.n4.nabble.com/ > _______________________________________________ > gstreamer-devel mailing list > [hidden email] > https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
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>Have you considered running v4l2-compliance test suite from v4l-utils ?
>It is generally a much easier place to start when validating a V4L2 >driver then GStreamer. It's much more low level and the error message >are written for Kernel devs. I'm trying to build petalinux with v4l2-utils. >No g_fmt ? I've implemented the "vidioc_g_fmt_vid_cap" but it seems that is never called. >This is just a high level error saying that the buffer pool failed to >start. The buffer pool is doing a bit too much in my opinion, basically >it could fail at many stages, including for non-kernel related issues. >Try enabling more traces, like GST_DEBUG="v4l2*:7". Using GST_DEBUG="v4l2*:7" the error is more complete: DEBUG v4l2bufferpool gstv4l2bufferpool.c:509:gst_v4l2_buffer_pool_set_config:<v4l2src0:pool:src> config GstBufferPoolConfig, caps=(GstCaps)"video/x-raw\,\ format\=\(string\)RGB\,\ width\=\(int\)4096\,\ height\=\(int\)2160\,\ framerate\=\(fraction\)30/1\,\ pixel-aspect-ratio\=\(fraction\)1/1\,\ interlace-mode\=\(string\)progressive", size=(uint)26542080, min-buffers=(uint)4, max-buffers=(uint)0, allocator=(GstAllocator)"NULL", params=(GstAllocationParams)NULL, options=(string)< GstBufferPoolOptionVideoMeta >; DEBUG v4l2bufferpool gstv4l2bufferpool.c:707:gst_v4l2_buffer_pool_start:<v4l2src0:pool:src> activating pool DEBUG v4l2bufferpool gstv4l2bufferpool.c:1414:gst_v4l2_buffer_pool_release_buffer:<v4l2src0:pool:src> release buffer 0x7f900100d0 DEBUG v4l2bufferpool gstv4l2bufferpool.c:1414:gst_v4l2_buffer_pool_release_buffer:<v4l2src0:pool:src> release buffer 0x7f900101e0 DEBUG v4l2bufferpool gstv4l2bufferpool.c:1414:gst_v4l2_buffer_pool_release_buffer:<v4l2src0:pool:src> release buffer 0x7f900102f0 DEBUG v4l2bufferpool gstv4l2bufferpool.c:1414:gst_v4l2_buffer_pool_release_buffer:<v4l2src0:pool:src> release buffer 0x7f90010400 ERROR v4l2bufferpool gstv4l2bufferpool.c:888:gst_v4l2_buffer_pool_start:<v4l2src0:pool:src> failed to queue buffers into the capture queue WARN v4l2src gstv4l2src.c:555:gst_v4l2src_decide_allocation:<v4l2src0> error: Failed to allocate required memory. WARN v4l2src gstv4l2src.c:555:gst_v4l2src_decide_allocation:<v4l2src0> error: Buffer pool activation failed ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Failed to allocate required memory. Additional debug info: ../../../git/sys/v4l2/gstv4l2src.c(555): gst_v4l2src_decide_allocation (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: -- Sent from: http://gstreamer-devel.966125.n4.nabble.com/ _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
Re: Gstreamer v4l2src: Failed to allocate required memory
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Le mar. 26 mars 2019 04 h 55, Andrea <[hidden email]> a écrit : >Have you considered running v4l2-compliance test suite from v4l-utils ? There is a tad more information now, but not much. It fails on a check that validate that all 4 buffers have need queued. When you have v4l2-ctl setup, you should use that tool to see if you can capture at that resolution and with this odd pixel format (rgb is 24bit per pixel format, so it's odd in the sense that it does not align each pixel to a 32bit word).
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This post was updated on .
I've installed v4l2-utils and run v4l2-compliance.
v4l2-compliance SHA : not available Driver Info: Driver name : video Card type : PL video Bus info : platform:Pl-0.0.0 Driver version: 4.14.0 Capabilities : 0x81200001 Video Capture Read/Write Extended Pix Format Device Capabilities Device Caps : 0x01200001 Video Capture Read/Write Extended Pix Format Compliance test for device /dev/video0 (not using libv4l2): Required ioctls: test VIDIOC_QUERYCAP: OK Allow for multiple opens: test second video open: OK test VIDIOC_QUERYCAP: OK test VIDIOC_G/S_PRIORITY: OK test for unlimited opens: OK Debug ioctls: test VIDIOC_DBG_G/S_REGISTER: OK (Not Supported) test VIDIOC_LOG_STATUS: OK (Not Supported) Input ioctls: test VIDIOC_G/S_TUNER/ENUM_FREQ_BANDS: OK (Not Supported) test VIDIOC_G/S_FREQUENCY: OK (Not Supported) test VIDIOC_S_HW_FREQ_SEEK: OK (Not Supported) test VIDIOC_ENUMAUDIO: OK (Not Supported) test VIDIOC_G/S/ENUMINPUT: OK test VIDIOC_G/S_AUDIO: OK (Not Supported) Inputs: 1 Audio Inputs: 0 Tuners: 0 Output ioctls: test VIDIOC_G/S_MODULATOR: OK (Not Supported) test VIDIOC_G/S_FREQUENCY: OK (Not Supported) test VIDIOC_ENUMAUDOUT: OK (Not Supported) test VIDIOC_G/S/ENUMOUTPUT: OK (Not Supported) test VIDIOC_G/S_AUDOUT: OK (Not Supported) Outputs: 0 Audio Outputs: 0 Modulators: 0 Input/Output configuration ioctls: test VIDIOC_ENUM/G/S/QUERY_STD: OK (Not Supported) test VIDIOC_ENUM/G/S/QUERY_DV_TIMINGS: OK (Not Supported) test VIDIOC_DV_TIMINGS_CAP: OK (Not Supported) test VIDIOC_G/S_EDID: OK (Not Supported) Test input 0: Control ioctls: test VIDIOC_QUERY_EXT_CTRL/QUERYMENU: OK (Not Supported) test VIDIOC_QUERYCTRL: OK (Not Supported) test VIDIOC_G/S_CTRL: OK (Not Supported) test VIDIOC_G/S/TRY_EXT_CTRLS: OK (Not Supported) test VIDIOC_(UN)SUBSCRIBE_EVENT/DQEVENT: OK (Not Supported) test VIDIOC_G/S_JPEGCOMP: OK (Not Supported) Standard Controls: 0 Private Controls: 0 Format ioctls: test VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS: OK warn: ../../../v4l-utils-1.12.3/utils/v4l2-compliance/v4l2-test-formats.cpp(1121): V4L2_MODE_HIGHQUALITY is poorly defined warn: ../../../v4l-utils-1.12.3/utils/v4l2-compliance/v4l2-test-formats.cpp(1121): V4L2_MODE_HIGHQUALITY is poorly defined test VIDIOC_G/S_PARM: OK test VIDIOC_G_FBUF: OK (Not Supported) test VIDIOC_G_FMT: OK warn: ../../../v4l-utils-1.12.3/utils/v4l2-compliance/v4l2-test-formats.cpp(717): TRY_FMT cannot handle an invalid pixelformat. warn: ../../../v4l-utils-1.12.3/utils/v4l2-compliance/v4l2-test-formats.cpp(718): This may or may not be a problem. For more information see: warn: ../../../v4l-utils-1.12.3/utils/v4l2-compliance/v4l2-test-formats.cpp(719): http://www.mail-archive.com/linux-media@vger.kernel.org/msg56550.html test VIDIOC_TRY_FMT: OK warn: ../../../v4l-utils-1.12.3/utils/v4l2-compliance/v4l2-test-formats.cpp(977): S_FMT cannot handle an invalid pixelformat. warn: ../../../v4l-utils-1.12.3/utils/v4l2-compliance/v4l2-test-formats.cpp(978): This may or may not be a problem. For more information see: warn: ../../../v4l-utils-1.12.3/utils/v4l2-compliance/v4l2-test-formats.cpp(979): http://www.mail-archive.com/linux-media@vger.kernel.org/msg56550.html test VIDIOC_S_FMT: OK test VIDIOC_G_SLICED_VBI_CAP: OK (Not Supported) test Cropping: OK (Not Supported) test Composing: OK (Not Supported) test Scaling: OK (Not Supported) Codec ioctls: test VIDIOC_(TRY_)ENCODER_CMD: OK (Not Supported) test VIDIOC_G_ENC_INDEX: OK (Not Supported) test VIDIOC_(TRY_)DECODER_CMD: OK (Not Supported) Buffer ioctls: test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: OK (Not Supported) test VIDIOC_EXPBUF: OK (Not Supported) Test input 0: Total: 43, Succeeded: 43, Failed: 0, Warnings: 8 After solving some fail, lanching again the pipeline the error did not change: DEBUG v4l2 gstv4l2object.c:3095:gst_v4l2_object_save_format:<v4l2src0> Got sizeimage 26542080 DEBUG v4l2 gstv4l2object.c:2858:gst_v4l2_object_setup_pool:<v4l2src0> initializing the capture system INFO v4l2 gstv4l2object.c:2882:gst_v4l2_object_setup_pool:<v4l2src0> accessing buffers via mode 1 LOG v4l2 gstv4l2object.c:2891:gst_v4l2_object_setup_pool:<v4l2src0> initiating buffer pool WARN v4l2allocator gstv4l2allocator.c:660:gst_v4l2_allocator_new:<v4l2src0:pool:src:allocator> Could not probe supported memory type, assuming MMAP is supported, this is expected for older drivers not yet ported to videobuf2 framework DEBUG v4l2bufferpool gstv4l2bufferpool.c:509:gst_v4l2_buffer_pool_set_config:<v4l2src0:pool:src> config GstBufferPoolConfig, caps=(GstCaps)"video/x-raw\,\ format\=\(string\)RGB\,\ width\=\(int\)4096\,\ height\=\(int\)2160\,\ framerate\=\(fraction\)30/1\,\ pixel-aspect-ratio\=\(fraction\)1/1\,\ interlace-mode\=\(string\)progressive\,\ colorimetry\=\(string\)sRGB", size=(uint)26542080, min-buffers=(uint)0, max-buffers=(uint)0, allocator=(GstAllocator)"NULL", params=(GstAllocationParams)NULL; DEBUG v4l2 gstv4l2object.c:4035:gst_v4l2_object_decide_allocation:<v4l2src0> decide allocation DEBUG v4l2 gstv4l2object.c:4061:gst_v4l2_object_decide_allocation:<v4l2src0> allocation: size:26542080 min:2 max:0 pool:(NULL) DEBUG v4l2 gstv4l2object.c:4088:gst_v4l2_object_decide_allocation:<v4l2src0> read/write mode: no downstream pool, using our own DEBUG v4l2 gstv4l2object.c:4186:gst_v4l2_object_decide_allocation:<v4l2src0> activate Video Meta DEBUG v4l2 gstv4l2object.c:4195:gst_v4l2_object_decide_allocation:<v4l2src0> setting own pool config to GstBufferPoolConfig, caps=(GstCaps)"video/x-raw\,\ format\=\(string\)RGB\,\ width\=\(int\)4096\,\ height\=\(int\)2160\,\ framerate\=\(fraction\)30/1\,\ pixel-aspect-ratio\=\(fraction\)1/1\,\ interlace-mode\=\(string\)progressive\,\ colorimetry\=\(string\)sRGB", size=(uint)26542080, min-buffers=(uint)4, max-buffers=(uint)0, allocator=(GstAllocator)"NULL", params=(GstAllocationParams)NULL, options=(string)< GstBufferPoolOptionVideoMeta >; DEBUG v4l2bufferpool gstv4l2bufferpool.c:509:gst_v4l2_buffer_pool_set_config:<v4l2src0:pool:src> config GstBufferPoolConfig, caps=(GstCaps)"video/x-raw\,\ format\=\(string\)RGB\,\ width\=\(int\)4096\,\ height\=\(int\)2160\,\ framerate\=\(fraction\)30/1\,\ pixel-aspect-ratio\=\(fraction\)1/1\,\ interlace-mode\=\(string\)progressive\,\ colorimetry\=\(string\)sRGB", size=(uint)26542080, min-buffers=(uint)4, max-buffers=(uint)0, allocator=(GstAllocator)"NULL", params=(GstAllocationParams)NULL, options=(string)< GstBufferPoolOptionVideoMeta >; DEBUG v4l2bufferpool gstv4l2bufferpool.c:707:gst_v4l2_buffer_pool_start:<v4l2src0:pool:src> activating pool DEBUG v4l2bufferpool gstv4l2bufferpool.c:1414:gst_v4l2_buffer_pool_release_buffer:<v4l2src0:pool:src> release buffer 0x7fb40110e0 DEBUG v4l2bufferpool gstv4l2bufferpool.c:1414:gst_v4l2_buffer_pool_release_buffer:<v4l2src0:pool:src> release buffer 0x7fb40111f0 DEBUG v4l2bufferpool gstv4l2bufferpool.c:1414:gst_v4l2_buffer_pool_release_buffer:<v4l2src0:pool:src> release buffer 0x7fb4011300 DEBUG v4l2bufferpool gstv4l2bufferpool.c:1414:gst_v4l2_buffer_pool_release_buffer:<v4l2src0:pool:src> release buffer 0x7fb4011410 ERROR v4l2bufferpool gstv4l2bufferpool.c:888:gst_v4l2_buffer_pool_start:<v4l2src0:pool:src> failed to queue buffers into the capture queue WARN v4l2src gstv4l2src.c:555:gst_v4l2src_decide_allocation:<v4l2src0> error: Failed to allocate required memory. WARN v4l2src gstv4l2src.c:555:gst_v4l2src_decide_allocation:<v4l2src0> error: Buffer pool activation failed ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Failed to allocate required memory. Additional debug info: ../../../git/sys/v4l2/gstv4l2src.c(555): gst_v4l2src_decide_allocation (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Buffer pool activation failed Execution ended after 0:00:01.053742187 Setting pipeline to PAUSED ... LOG v4l2 gstv4l2object.c:3913:gst_v4l2_object_unlock:<v4l2src0> start flushing Setting pipeline to READY ... LOG v4l2 gstv4l2object.c:3913:gst_v4l2_object_unlock:<v4l2src0> start flushing LOG v4l2 gstv4l2object.c:3926:gst_v4l2_object_unlock_stop:<v4l2src0> stop flushing DEBUG v4l2 gstv4l2object.c:3937:gst_v4l2_object_stop:<v4l2src0> stopping DEBUG v4l2 gstv4l2object.c:3945:gst_v4l2_object_stop:<v4l2src0> deactivating pool LOG v4l2allocator gstv4l2allocator.c:407:gst_v4l2_allocator_dispose:<v4l2src0:pool:src:allocator> called LOG v4l2allocator gstv4l2allocator.c:424:gst_v4l2_allocator_finalize:<v4l2src0:pool:src:allocator> called Setting pipeline to NULL ... DEBUG v4l2 v4l2_calls.c:719:gst_v4l2_close:<v4l2src0> Trying to close /dev/video0 DEBUG v4l2 v4l2_calls.c:464:gst_v4l2_empty_lists:<v4l2src0> deleting enumerations Freeing pipeline ... |
Re: Gstreamer v4l2src: Failed to allocate required memory
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Le mer. 27 mars 2019 04 h 55, Andrea <[hidden email]> a écrit : I've installed v4l2-utils and run v4l2-compliance. No idea, did you test doing capture with v4l2-ctl utility, like I suggested ?
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Re: Gstreamer v4l2src: Failed to allocate required memory
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In reply to this post by Andrea
Le mer. 27 mars 2019 04 h 55, Andrea <[hidden email]> a écrit : I've installed v4l2-utils and run v4l2-compliance. Wat!?! I need to speak to Hans, this should really be an error. Basically, allocating buffers is not supported by your driver, so it's totally unusable. test VIDIOC_EXPBUF: OK (Not Supported)
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This is my first driver, so it can possible (indeed it is very probable) I'm
making some mistakes. For now I've implemented this ioctl operations: vidioc_querycap vidioc_s_parm vidioc_g_parm vidioc_g_input vidioc_s_input vidioc_g_output vidioc_s_output vidioc_reqbufs vidioc_querybuf vidioc_qbuf vidioc_dqbuf vidioc_enum_fmt_vid_cap vidioc_enum_framesizes vidioc_enum_frameintervals vidioc_enum_input vidioc_try_fmt_vid_cap vidioc_s_fmt_vid_cap vidioc_g_fmt_vid_cap I'm making some other tests and changes to find the error/s. -- Sent from: http://gstreamer-devel.966125.n4.nabble.com/ _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
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Hi Andrea,
Did you actually finally sole this issue. If yes what did you do. I have the same issue too. Thanks, Malik -- Sent from: http://gstreamer-devel.966125.n4.nabble.com/ _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
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