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lavfi/atempo: switch to an AVOptions-based system.

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Signed-off-by: Pavel Koshevoy <pkoshevoy@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Pavel Koshevoy 2013-04-11 21:21:04 -06:00 committed by Michael Niedermayer
parent 9ab796127a
commit 8f3c440a39
2 changed files with 15 additions and 6 deletions
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20
libavfilter/af_atempo.c
View File

@ -85,6 +85,8 @@ typedef enum {
* Filter state machine
*/
typedef struct {
const AVClass *class;
// ring-buffer of input samples, necessary because some times
// input fragment position may be adjusted backwards:
uint8_t *buffer;
@ -146,6 +148,17 @@ typedef struct {
uint64_t nsamples_out;
} ATempoContext;
#define OFFSET(x) offsetof(ATempoContext, x)
static const AVOption atempo_options[] = {
{ "tempo", "set tempo scale factor",
OFFSET(tempo), AV_OPT_TYPE_DOUBLE, { .dbl = 1.0 }, 0.5, 2.0,
AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_FILTERING_PARAM },
{ NULL }
};
AVFILTER_DEFINE_CLASS(atempo);
/**
* Reset filter to initial state, do not deallocate existing local buffers.
*/
@ -950,13 +963,9 @@ static int yae_flush(ATempoContext *atempo,
static av_cold int init(AVFilterContext *ctx, const char *args)
{
ATempoContext *atempo = ctx->priv;
// NOTE: this assumes that the caller has memset ctx->priv to 0:
atempo->format = AV_SAMPLE_FMT_NONE;
atempo->tempo = 1.0;
atempo->state = YAE_LOAD_FRAGMENT;
return args ? yae_set_tempo(ctx, args) : 0;
return 0;
}
static av_cold void uninit(AVFilterContext *ctx)
@ -1166,6 +1175,7 @@ AVFilter avfilter_af_atempo = {
.query_formats = query_formats,
.process_command = process_command,
.priv_size = sizeof(ATempoContext),
.priv_class = &atempo_class,
.inputs = atempo_inputs,
.outputs = atempo_outputs,
};

1
libavfilter/avfilter.c
View File

@ -687,7 +687,6 @@ static const char *const filters_left_to_update[] = {
#if FF_API_ACONVERT_FILTER
"aconvert",
#endif
"atempo",
"buffer",
"pan",
};