RPI 1.4.5 gst_memory_map: subclass map failed

[Arnaud Loonstra]

Hi all,

I'm running into an issue where a gst-launch is working on a Raspberry 
Pi but the same python code isn't...

gst-launch-1.0 -v uridecodebin 
uri=file:///opt/vc/src/hello_pi/hello_video/test.h264 ! glshader 
location=shader.glsl preset=preset.glsl vars="float alpha = float(1.);" 
! glimagesink  sync=false

Is working (although slow)

But the same in a python script is giving:

0:00:00.675878718 10258  0x1938b40 WARN                 basesrc 
gstbasesrc.c:3470:gst_base_src_start_complete:<source> pad not activated 
yet
0:00:00.695690831 10258  0x1938b40 WARN                 basesrc 
gstbasesrc.c:3470:gst_base_src_start_complete:<source> pad not activated 
yet
<__main__.GstURIDecodeBin object at 0xb5d358f0 (GstURIDecodeBin at 
0x191e058)> <GhostPad object at 0xb5d4faa8 (GstGhostPad at 0x193a630)> 
<Bin object at 0xb5d35bc0 (GstBin at 0x1934080)>
0:00:01.313655144 10258  0x1a2d800 FIXME               glshader 
gstglshader.c:440:gst_gl_shader_compile: vertex shader info log:
Compiled
0:00:01.316240028 10258  0x1a2d800 FIXME               glshader 
gstglshader.c:472:gst_gl_shader_compile: vertex shader info log:
Compiled
(python3:10258): GStreamer-CRITICAL **: gst_buffer_pool_get_config: 
assertion 'GST_IS_BUFFER_POOL (pool)' failed
(python3:10258): GStreamer-CRITICAL **: 
gst_buffer_pool_config_get_params: assertion 'config != NULL' failed
(python3:10258): GStreamer-CRITICAL **: gst_structure_free: assertion 
'structure != NULL' failed
(python3:10258): GStreamer-CRITICAL **: gst_buffer_pool_get_config: 
assertion 'GST_IS_BUFFER_POOL (pool)' failed
(python3:10258): GStreamer-CRITICAL **: 
gst_buffer_pool_config_get_params: assertion 'config != NULL' failed
(python3:10258): GStreamer-CRITICAL **: gst_structure_free: assertion 
'structure != NULL' failed
(python3:10258): GStreamer-CRITICAL **: gst_query_add_allocation_pool: 
assertion 'size != 0' failed
0:00:01.507338466 10258 0xb1008f20 ERROR             GST_MEMORY 
gstmemory.c:318:gst_memory_map: mem 0x19ace18: subclass map failed
0:00:01.508560411 10258 0xb1008f20 ERROR                default 
video-frame.c:138:gst_video_frame_map_id: failed to map video frame 
plane 0
0:00:01.564639899 10258  0x1a2d800 FIXME               glshader 
gstglshader.c:440:gst_gl_shader_compile: vertex shader info log:
Compiled
0:00:01.567068790 10258  0x1a2d800 FIXME               glshader 
gstglshader.c:472:gst_gl_shader_compile: vertex shader info log:
Compiled
0:00:01.630446950 10258 0xb1008f20 ERROR             GST_MEMORY 
gstmemory.c:318:gst_memory_map: mem 0x1951a68: subclass map failed
0:00:01.631518902 10258 0xb1008f20 ERROR                default 
video-frame.c:138:gst_video_frame_map_id: failed to map video frame 
plane 0
0:00:01.685431487 10258 0xb1008f20 ERROR             GST_MEMORY 
gstmemory.c:318:gst_memory_map: mem 0x19ad0c0: subclass map failed
0:00:01.686610434 10258 0xb1008f20 ERROR                default 
video-frame.c:138:gst_video_frame_map_id: failed to map video frame 
plane 0
0:00:01.731516422 10258 0xb1008f20 ERROR             GST_MEMORY 
gstmemory.c:318:gst_memory_map: mem 0x19acdc0: subclass map failed
0:00:01.732589374 10258 0xb1008f20 ERROR                default 
video-frame.c:138:gst_video_frame_map_id: failed to map video frame 
plane 0
0:00:01.781968162 10258 0xb1008f20 ERROR             GST_MEMORY 
gstmemory.c:318:gst_memory_map: mem 0x19acf78: subclass map failed
0:00:01.783184107 10258 0xb1008f20 ERROR                default 
video-frame.c:138:gst_video_frame_map_id: failed to map video frame 
plane 0
0:00:01.829022053 10258 0xb1008f20 ERROR             GST_MEMORY 
gstmemory.c:318:gst_memory_map: mem 0x1a16b88: subclass map failed

Code is here: 
https://github.com/sphaero/ZOCPApps/blob/zvideo/zvideo/zvideoplayer.py

Any thoughts?

Rg,

Arnaud