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context: improve negotiation

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When a port doesn't implement the EnumFormat param, use NULL as
the filter or the filter as the result.
This commit is contained in:
Wim Taymans 2020-07-02 12:50:15 +02:00
parent 591244c53e
commit fc49c1697a
1 changed files with 23 additions and 16 deletions
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39
src/pipewire/context.c
View file

@ -697,11 +697,14 @@ int pw_context_find_format(struct pw_context *context,
input->direction, input->port_id,
SPA_PARAM_EnumFormat, &iidx,
filter, format, builder)) <= 0) {
if (res < 0)
if (res == -ENOENT || res == 0) {
pw_log_debug(NAME" %p: no input format filter, using output format: %s",
context, spa_strerror(res));
*format = filter;
} else {
*error = spa_aprintf("error input enum formats: %s", spa_strerror(res));
else
*error = spa_aprintf("no input formats");
goto error;
goto error;
}
}
} else if (out_state >= PW_IMPL_PORT_STATE_CONFIGURE && in_state > PW_IMPL_PORT_STATE_CONFIGURE) {
/* only output needs format */
@ -723,11 +726,14 @@ int pw_context_find_format(struct pw_context *context,
output->direction, output->port_id,
SPA_PARAM_EnumFormat, &oidx,
filter, format, builder)) <= 0) {
if (res < 0)
if (res == -ENOENT || res == 0) {
pw_log_debug(NAME" %p: no output format filter, using input format: %s",
context, spa_strerror(res));
*format = filter;
} else {
*error = spa_aprintf("error output enum formats: %s", spa_strerror(res));
else
*error = spa_aprintf("no output format");
goto error;
goto error;
}
}
} else if (in_state == PW_IMPL_PORT_STATE_CONFIGURE && out_state == PW_IMPL_PORT_STATE_CONFIGURE) {
again:
@ -738,15 +744,16 @@ int pw_context_find_format(struct pw_context *context,
input->direction, input->port_id,
SPA_PARAM_EnumFormat, &iidx,
NULL, &filter, &fb)) != 1) {
if (res == 0 && iidx == 0) {
*error = spa_aprintf("no compatible formats");
if (res == -ENOENT) {
pw_log_debug(NAME" %p: no input filter", context);
filter = NULL;
} else {
if (res < 0)
*error = spa_aprintf("error input enum formats: %s", spa_strerror(res));
else
*error = spa_aprintf("no more input formats");
goto error;
}
if (res < 0)
*error = spa_aprintf("error input enum formats: %s", spa_strerror(res));
else
*error = spa_aprintf("no more input formats");
goto error;
}
pw_log_debug(NAME" %p: enum output %d with filter: %p", context, oidx, filter);
pw_log_format(SPA_LOG_LEVEL_DEBUG, filter);
@ -755,7 +762,7 @@ int pw_context_find_format(struct pw_context *context,
output->direction, output->port_id,
SPA_PARAM_EnumFormat, &oidx,
filter, format, builder)) != 1) {
if (res == 0) {
if (res == 0 && filter != NULL) {
oidx = 0;
goto again;
}