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gst/src: Cleanups for src_negotiate()

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Using `g_autoptr` and related modern helpers more often makes
the code smaller, easier to follow and maintain.
No behavior changes intended.
This commit is contained in:
Robert Mader 2024-03-30 20:55:31 +01:00 • committed by Wim Taymans
parent 1a2fee260b
commit 594e3fa09f
1 changed files with 18 additions and 31 deletions
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49
src/gst/gstpipewiresrc.c
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@ -825,11 +825,12 @@ static gboolean
gst_pipewire_src_negotiate (GstBaseSrc * basesrc)
{
GstPipeWireSrc *pwsrc = GST_PIPEWIRE_SRC (basesrc);
GstCaps *thiscaps;
GstCaps *caps = NULL;
GstCaps *peercaps = NULL;
g_autoptr (GstCaps) thiscaps = NULL;
g_autoptr (GstCaps) possible_caps = NULL;
g_autoptr (GstCaps) negotiated_caps = NULL;
g_autoptr (GstCaps) peercaps = NULL;
g_autoptr (GPtrArray) possible = NULL;
gboolean result = FALSE;
GPtrArray *possible;
const char *error = NULL;
struct timespec abstime;
uint32_t target_id;
@ -849,24 +850,22 @@ gst_pipewire_src_negotiate (GstBaseSrc * basesrc)
GST_DEBUG_OBJECT (basesrc, "caps of peer: %" GST_PTR_FORMAT, peercaps);
if (peercaps) {
/* The result is already a subset of our caps */
caps = peercaps;
gst_caps_unref (thiscaps);
possible_caps = g_steal_pointer (&peercaps);
} else {
/* no peer, work with our own caps then */
caps = thiscaps;
possible_caps = g_steal_pointer (&thiscaps);
}
GST_DEBUG_OBJECT (basesrc, "have common caps: %" GST_PTR_FORMAT, caps);
gst_caps_sanitize (&caps);
GST_DEBUG_OBJECT (basesrc, "have common caps: %" GST_PTR_FORMAT, possible_caps);
gst_caps_sanitize (&possible_caps);
if (gst_caps_is_empty (caps))
if (gst_caps_is_empty (possible_caps))
goto no_common_caps;
GST_DEBUG_OBJECT (basesrc, "have common caps (sanitized): %" GST_PTR_FORMAT, caps);
GST_DEBUG_OBJECT (basesrc, "have common caps (sanitized): %" GST_PTR_FORMAT, possible_caps);
/* open a connection with these caps */
possible = gst_caps_to_format_all (caps);
gst_caps_unref (caps);
possible = gst_caps_to_format_all (possible_caps);
/* first disconnect */
pw_thread_loop_lock (pwsrc->core->loop);
@ -880,10 +879,8 @@ gst_pipewire_src_negotiate (GstBaseSrc * basesrc)
if (state == PW_STREAM_STATE_UNCONNECTED)
break;
if (state == PW_STREAM_STATE_ERROR || pwsrc->flushing) {
g_ptr_array_unref (possible);
if (state == PW_STREAM_STATE_ERROR || pwsrc->flushing)
goto connect_error;
}
pw_thread_loop_wait (pwsrc->core->loop);
}
@ -926,7 +923,6 @@ gst_pipewire_src_negotiate (GstBaseSrc * basesrc)
flags,
(const struct spa_pod **)possible->pdata,
possible->len);
g_ptr_array_free (possible, TRUE);
pw_thread_loop_get_time (pwsrc->core->loop, &abstime,
GST_PIPEWIRE_DEFAULT_TIMEOUT * SPA_NSEC_PER_SEC);
@ -948,18 +944,17 @@ gst_pipewire_src_negotiate (GstBaseSrc * basesrc)
pw_thread_loop_wait (pwsrc->core->loop);
}
}
caps = pwsrc->caps;
pwsrc->caps = NULL;
negotiated_caps = g_steal_pointer (&pwsrc->caps);
pw_thread_loop_unlock (pwsrc->core->loop);
if (caps == NULL)
if (negotiated_caps == NULL)
goto no_caps;
gst_pipewire_clock_reset (GST_PIPEWIRE_CLOCK (pwsrc->clock), 0);
GST_DEBUG_OBJECT (pwsrc, "set format %" GST_PTR_FORMAT, caps);
result = gst_base_src_set_caps (GST_BASE_SRC (pwsrc), caps);
gst_caps_unref (caps);
GST_DEBUG_OBJECT (pwsrc, "set format %" GST_PTR_FORMAT, negotiated_caps);
result = gst_base_src_set_caps (GST_BASE_SRC (pwsrc), negotiated_caps);
result = gst_pipewire_src_stream_start (pwsrc);
@ -970,8 +965,6 @@ gst_pipewire_src_negotiate (GstBaseSrc * basesrc)
no_nego_needed:
{
GST_DEBUG_OBJECT (basesrc, "no negotiation needed");
if (thiscaps)
gst_caps_unref (thiscaps);
return TRUE;
}
no_caps:
@ -982,9 +975,6 @@ no_caps:
("%s", error_string),
("This element did not produce valid caps"));
pw_stream_set_error (pwsrc->stream, -EINVAL, "%s", error_string);
if (thiscaps)
gst_caps_unref (thiscaps);
return FALSE;
}
no_common_caps:
@ -995,9 +985,6 @@ no_common_caps:
("%s", error_string),
("This element does not have formats in common with the peer"));
pw_stream_set_error (pwsrc->stream, -EPIPE, "%s", error_string);
if (caps)
gst_caps_unref (caps);
return FALSE;
}
connect_error: