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filter-graph: handle NULL in and out

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We need to pass exactly n_inputs and n_outputs pointers to the process
function but make it possible to set some to NULL so that the data is
ignored.
This commit is contained in:
Wim Taymans 2024-12-18 12:21:55 +01:00
parent 49f48a5fda
commit 3cf9ccf4a7
2 changed files with 14 additions and 2 deletions
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9
src/modules/module-filter-chain.c
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@ -842,6 +842,8 @@ struct impl {
struct spa_handle *handle;
struct spa_filter_graph *graph;
struct spa_hook graph_listener;
uint32_t n_inputs;
uint32_t n_outputs;
};
static void capture_destroy(void *d)
@ -907,6 +909,8 @@ static void playback_process(void *d)
data_size = i == 0 ? size : SPA_MIN(data_size, size);
stride = SPA_MAX(stride, bd->chunk->stride);
}
for (; i < impl->n_inputs; i++)
cin[i] = NULL;
for (i = 0; i < out->buffer->n_datas; i++) {
bd = &out->buffer->datas[i];
@ -919,6 +923,8 @@ static void playback_process(void *d)
bd->chunk->size = data_size;
bd->chunk->stride = stride;
}
for (; i < impl->n_outputs; i++)
cout[i] = NULL;
pw_log_trace_fp("%p: stride:%d size:%d requested:%"PRIu64" (%"PRIu64")", impl,
stride, data_size, out->requested, out->requested * stride);
@ -1224,6 +1230,9 @@ static void graph_info(void *object, const struct spa_filter_graph_info *info)
if (impl->playback_info.channels == 0)
impl->playback_info.channels = info->n_outputs;
impl->n_inputs = info->n_inputs;
impl->n_outputs = info->n_outputs;
if (impl->capture_info.channels == impl->playback_info.channels) {
copy_position(&impl->capture_info, &impl->playback_info);
copy_position(&impl->playback_info, &impl->capture_info);