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add OMX_PERFORMANCE debug category

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Can be used to log buffers exchange between OMX and gst-omx to profile
performances of the OMX component.
Ideally this should be done using tracer hooks but it's currently not
possible to define custom hooks outside of core.

Use GST_DEBUG="OMX_PERFORMANCE:8" to enable it.
See also
https://github.com/gdesmott/gst-log-parser/blob/master/src/bin/omx-perf.rs
as a simple program consuming those logs to generate gnuplot files and
stats.

https://bugzilla.gnome.org/show_bug.cgi?id=791093
This commit is contained in:
Guillaume Desmottes 2017-10-30 11:59:19 +01:00 committed by Nicolas Dufresne
parent 9f87b987ef
commit 65cc312aa8
1 changed files with 40 additions and 0 deletions
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40
omx/gstomx.c
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@ -53,6 +53,8 @@
GST_DEBUG_CATEGORY (gstomx_debug);
#define GST_CAT_DEFAULT gstomx_debug
GST_DEBUG_CATEGORY_STATIC (OMX_PERFORMANCE);
G_LOCK_DEFINE_STATIC (core_handles);
static GHashTable *core_handles;
@ -634,6 +636,37 @@ gst_omx_buffer_unmap (GstOMXBuffer * buffer)
}
}
static void
log_omx_performance (GstOMXComponent * comp, const gchar * event,
GstOMXBuffer * buf)
{
GstStructure *s;
/* Don't bother creating useless structs if not needed */
if (gst_debug_category_get_threshold (OMX_PERFORMANCE) < GST_LEVEL_TRACE)
return;
if (buf) {
/* *INDENT-OFF* */
s = gst_structure_new (event,
"GstOMXBuffer", G_TYPE_POINTER, buf,
"OMX-buffer", G_TYPE_POINTER, buf->omx_buf,
"TimeStamp", G_TYPE_UINT64, GST_OMX_GET_TICKS (buf->omx_buf->nTimeStamp),
"AllocLen", G_TYPE_UINT, buf->omx_buf->nAllocLen,
"FilledLen", G_TYPE_UINT, buf->omx_buf->nFilledLen,
"flags", G_TYPE_UINT, buf->omx_buf->nFlags,
"flags-str", G_TYPE_STRING, gst_omx_buffer_flags_to_string (buf->omx_buf->nFlags),
NULL);
/* *INDENT-ON* */
} else {
s = gst_structure_new_empty (event);
}
GST_CAT_TRACE_OBJECT (OMX_PERFORMANCE, comp->parent, "%" GST_PTR_FORMAT, s);
gst_structure_free (s);
}
static OMX_ERRORTYPE
EmptyBufferDone (OMX_HANDLETYPE hComponent, OMX_PTR pAppData,
OMX_BUFFERHEADERTYPE * pBuffer)
@ -667,6 +700,7 @@ EmptyBufferDone (OMX_HANDLETYPE hComponent, OMX_PTR pAppData,
msg->content.buffer_done.buffer = pBuffer;
msg->content.buffer_done.empty = OMX_TRUE;
log_omx_performance (comp, "EmptyBufferDone", buf);
GST_LOG_OBJECT (comp->parent, "%s port %u emptied buffer %p (%p)",
comp->name, buf->port->index, buf, buf->omx_buf->pBuffer);
@ -705,6 +739,7 @@ FillBufferDone (OMX_HANDLETYPE hComponent, OMX_PTR pAppData,
msg->content.buffer_done.buffer = pBuffer;
msg->content.buffer_done.empty = OMX_FALSE;
log_omx_performance (comp, "FillBufferDone", buf);
GST_LOG_OBJECT (comp->parent, "%s port %u filled buffer %p (%p)", comp->name,
buf->port->index, buf, buf->omx_buf->pBuffer);
@ -1498,8 +1533,10 @@ gst_omx_port_release_buffer (GstOMXPort * port, GstOMXBuffer * buf)
buf->used = TRUE;
if (port->port_def.eDir == OMX_DirInput) {
log_omx_performance (comp, "EmptyThisBuffer", buf);
err = OMX_EmptyThisBuffer (comp->handle, buf->omx_buf);
} else {
log_omx_performance (comp, "FillThisBuffer", buf);
err = OMX_FillThisBuffer (comp->handle, buf->omx_buf);
}
GST_DEBUG_OBJECT (comp->parent, "Released buffer %p to %s port %u: %s "
@ -2280,6 +2317,7 @@ gst_omx_port_populate_unlocked (GstOMXPort * port)
*/
gst_omx_buffer_reset (buf);
log_omx_performance (comp, "FillThisBuffer", buf);
err = OMX_FillThisBuffer (comp->handle, buf->omx_buf);
if (err != OMX_ErrorNone) {
@ -2981,6 +3019,8 @@ plugin_init (GstPlugin * plugin)
GST_DEBUG_CATEGORY_INIT (gstomx_debug, "omx", 0, "gst-omx");
GST_DEBUG_CATEGORY_INIT (gst_omx_video_debug_category, "omxvideo", 0,
"gst-omx-video");
GST_DEBUG_CATEGORY_INIT (OMX_PERFORMANCE, "OMX_PERFORMANCE", 0,
"gst-omx performace");
/* Read configuration file gstomx.conf from the preferred
* configuration directories */