static int control(struct af_instance *af, int cmd, void *arg)
{
struct priv *p = af->priv;
switch (cmd) {
case AF_CONTROL_REINIT: {
struct mp_audio *in = arg;
struct mp_audio orig_in = *in;
struct mp_audio *out = af->data;
if (af_to_avformat(in->format) == AV_SAMPLE_FMT_NONE)
mp_audio_set_format(in, AF_FORMAT_FLOAT);
// Removing this requires fixing AVFrame.data vs. AVFrame.extended_data
if (in->channels.num > AV_NUM_DATA_POINTERS)
return AF_ERROR;
if (!mp_chmap_is_lavc(&in->channels))
mp_chmap_reorder_to_lavc(&in->channels); // will always work
if (!recreate_graph(af, in))
return AF_ERROR;
AVFilterLink *l_out = p->out->inputs[0];
out->rate = l_out->sample_rate;
mp_audio_set_format(out, af_from_avformat(l_out->format));
struct mp_chmap out_cm;
mp_chmap_from_lavc(&out_cm, l_out->channel_layout);
mp_audio_set_channels(out, &out_cm);
if (!mp_audio_config_valid(out) || out->channels.num > AV_NUM_DATA_POINTERS)
return AF_ERROR;
p->timebase_out = l_out->time_base;
return mp_audio_config_equals(in, &orig_in) ? AF_OK : AF_FALSE;
}
case AF_CONTROL_GET_METADATA:
if (p->metadata) {
*(struct mp_tags *)arg = *p->metadata;
return CONTROL_OK;
}
return CONTROL_NA;
case AF_CONTROL_RESET:
reset(af);
return AF_OK;
}
return AF_UNKNOWN;
}
static int control(struct af_instance *af, int cmd, void *arg)
{
struct priv *p = af->priv;
switch (cmd) {
case AF_CONTROL_REINIT: {
struct mp_audio *in = arg;
struct mp_audio orig_in = *in;
struct mp_audio *out = af->data;
if (af_to_avformat(in->format) == AV_SAMPLE_FMT_NONE)
mp_audio_set_format(in, AF_FORMAT_FLOAT);
if (!mp_chmap_is_lavc(&in->channels))
mp_chmap_reorder_to_lavc(&in->channels); // will always work
if (!recreate_graph(af, in))
return AF_ERROR;
AVFilterLink *l_out = p->out->inputs[0];
out->rate = l_out->sample_rate;
mp_audio_set_format(out, af_from_avformat(l_out->format));
struct mp_chmap out_cm;
mp_chmap_from_lavc(&out_cm, l_out->channel_layout);
if (!out_cm.num || out_cm.num != l_out->channels)
mp_chmap_from_channels(&out_cm, l_out->channels);
mp_audio_set_channels(out, &out_cm);
if (!mp_audio_config_valid(out))
return AF_ERROR;
p->timebase_out = l_out->time_base;
// Blatantly incorrect; we don't know what the filters do.
af->mul = out->rate / (double)in->rate;
return mp_audio_config_equals(in, &orig_in) ? AF_OK : AF_FALSE;
}
}
return AF_UNKNOWN;
}
static void reset(struct af_instance *af)
{
if (!recreate_graph(af, &af->fmt_in))
MP_FATAL(af, "Can't recreate libavfilter filter after a seek reset.\n");
}
