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lavfi: define macro AVFILTER_DEFINE_CLASS

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The macro can be used to define consistently the internal class of a
filter, save some typing and factorize.
This commit is contained in:
Stefano Sabatini 2012-06-22 14:33:09 +02:00
parent 012aa12a6b
commit c17808cebd
27 changed files with 58 additions and 204 deletions
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10
libavfilter/af_aformat.c
View File

@ -46,20 +46,14 @@ typedef struct AFormatContext {
#define OFFSET(x) offsetof(AFormatContext, x)
#define A AV_OPT_FLAG_AUDIO_PARAM
static const AVOption options[] = {
static const AVOption aformat_options[] = {
{ "sample_fmts", "A comma-separated list of sample formats.", OFFSET(formats_str), AV_OPT_TYPE_STRING, .flags = A },
{ "sample_rates", "A comma-separated list of sample rates.", OFFSET(sample_rates_str), AV_OPT_TYPE_STRING, .flags = A },
{ "channel_layouts", "A comma-separated list of channel layouts.", OFFSET(channel_layouts_str), AV_OPT_TYPE_STRING, .flags = A },
{ NULL },
};
static const AVClass aformat_class = {
.class_name = "aformat",
.item_name = av_default_item_name,
.option = options,
.version = LIBAVUTIL_VERSION_INT,
.category = AV_CLASS_CATEGORY_FILTER,
};
AVFILTER_DEFINE_CLASS(aformat);
#define PARSE_FORMATS(str, type, list, add_to_list, get_fmt, none, desc) \
do { \

8
libavfilter/af_amerge.c
View File

@ -52,13 +52,7 @@ static const AVOption amerge_options[] = {
{0}
};
static const AVClass amerge_class = {
.class_name = "amerge",
.item_name = av_default_item_name,
.option = amerge_options,
.version = LIBAVUTIL_VERSION_INT,
.category = AV_CLASS_CATEGORY_FILTER,
};
AVFILTER_DEFINE_CLASS(amerge);
static av_cold void uninit(AVFilterContext *ctx)
{

11
libavfilter/af_amix.c
View File

@ -173,7 +173,7 @@ typedef struct MixContext {
#define OFFSET(x) offsetof(MixContext, x)
#define A AV_OPT_FLAG_AUDIO_PARAM
static const AVOption options[] = {
static const AVOption amix_options[] = {
{ "inputs", "Number of inputs.",
OFFSET(nb_inputs), AV_OPT_TYPE_INT, { 2 }, 1, 32, A },
{ "duration", "How to determine the end-of-stream.",
@ -187,14 +187,7 @@ static const AVOption options[] = {
{ NULL },
};
static const AVClass amix_class = {
.class_name = "amix",
.item_name = av_default_item_name,
.option = options,
.version = LIBAVUTIL_VERSION_INT,
.category = AV_CLASS_CATEGORY_FILTER,
};
AVFILTER_DEFINE_CLASS(amix);
/**
* Update the scaling factors to apply to each input during mixing.

13
libavfilter/af_asetnsamples.c
View File

@ -29,6 +29,7 @@
#include "libavutil/opt.h"
#include "avfilter.h"
#include "audio.h"
#include "internal.h"
#include "formats.h"
typedef struct {
@ -42,7 +43,7 @@ typedef struct {
#define OFFSET(x) offsetof(ASNSContext, x)
static const AVOption asns_options[] = {
static const AVOption asetnsamples_options[] = {
{ "pad", "pad last frame with zeros", OFFSET(pad), AV_OPT_TYPE_INT, {.dbl=1}, 0, 1 },
{ "p", "pad last frame with zeros", OFFSET(pad), AV_OPT_TYPE_INT, {.dbl=1}, 0, 1 },
{ "nb_out_samples", "set the number of per-frame output samples", OFFSET(nb_out_samples), AV_OPT_TYPE_INT, {.dbl=1024}, 1, INT_MAX },
@ -50,20 +51,14 @@ static const AVOption asns_options[] = {
{ NULL }
};
static const AVClass asns_class = {
.class_name = "asetnsamples",
.item_name = av_default_item_name,
.option = asns_options,
.version = LIBAVUTIL_VERSION_INT,
.category = AV_CLASS_CATEGORY_FILTER,
};
AVFILTER_DEFINE_CLASS(asetnsamples);
static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
{
ASNSContext *asns = ctx->priv;
int err;
asns->class = &asns_class;
asns->class = &asetnsamples_class;
av_opt_set_defaults(asns);
if ((err = av_set_options_string(asns, args, "=", ":")) < 0) {

12
libavfilter/af_asyncts.c
View File

@ -41,7 +41,7 @@ typedef struct ASyncContext {
#define OFFSET(x) offsetof(ASyncContext, x)
#define A AV_OPT_FLAG_AUDIO_PARAM
static const AVOption options[] = {
static const AVOption asyncts_options[] = {
{ "compensate", "Stretch/squeeze the data to make it match the timestamps", OFFSET(resample), AV_OPT_TYPE_INT, { 0 }, 0, 1, A },
{ "min_delta", "Minimum difference between timestamps and audio data "
"(in seconds) to trigger padding/trimmin the data.", OFFSET(min_delta_sec), AV_OPT_TYPE_FLOAT, { 0.1 }, 0, INT_MAX, A },
@ -49,20 +49,14 @@ static const AVOption options[] = {
{ NULL },
};
static const AVClass async_class = {
.class_name = "asyncts",
.item_name = av_default_item_name,
.option = options,
.version = LIBAVUTIL_VERSION_INT,
.category = AV_CLASS_CATEGORY_FILTER,
};
AVFILTER_DEFINE_CLASS(asyncts);
static int init(AVFilterContext *ctx, const char *args, void *opaque)
{
ASyncContext *s = ctx->priv;
int ret;
s->class = &async_class;
s->class = &asyncts_class;
av_opt_set_defaults(s);
if ((ret = av_set_options_string(s, args, "=", ":")) < 0) {

10
libavfilter/af_channelsplit.c
View File

@ -40,18 +40,12 @@ typedef struct ChannelSplitContext {
#define OFFSET(x) offsetof(ChannelSplitContext, x)
#define A AV_OPT_FLAG_AUDIO_PARAM
static const AVOption options[] = {
static const AVOption channelsplit_options[] = {
{ "channel_layout", "Input channel layout.", OFFSET(channel_layout_str), AV_OPT_TYPE_STRING, { .str = "stereo" }, .flags = A },
{ NULL },
};
static const AVClass channelsplit_class = {
.class_name = "channelsplit",
.item_name = av_default_item_name,
.option = options,
.version = LIBAVUTIL_VERSION_INT,
.category = AV_CLASS_CATEGORY_FILTER,
};
AVFILTER_DEFINE_CLASS(channelsplit);
static int init(AVFilterContext *ctx, const char *arg, void *opaque)
{

9
libavfilter/af_silencedetect.c
View File

@ -28,6 +28,7 @@
#include "audio.h"
#include "formats.h"
#include "avfilter.h"
#include "internal.h"
typedef struct {
const AVClass *class;
@ -48,13 +49,7 @@ static const AVOption silencedetect_options[] = {
{ NULL },
};
static const AVClass silencedetect_class = {
.class_name = "silencedetect",
.item_name = av_default_item_name,
.option = silencedetect_options,
.version = LIBAVUTIL_VERSION_INT,
.category = AV_CLASS_CATEGORY_FILTER,
};
AVFILTER_DEFINE_CLASS(silencedetect);
static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
{

12
libavfilter/asrc_aevalsrc.c
View File

@ -66,7 +66,7 @@ typedef struct {
#define OFFSET(x) offsetof(EvalContext, x)
static const AVOption eval_options[]= {
static const AVOption aevalsrc_options[]= {
{ "nb_samples", "set the number of samples per requested frame", OFFSET(nb_samples), AV_OPT_TYPE_INT, {.dbl = 1024}, 0, INT_MAX },
{ "n", "set the number of samples per requested frame", OFFSET(nb_samples), AV_OPT_TYPE_INT, {.dbl = 1024}, 0, INT_MAX },
{ "sample_rate", "set the sample rate", OFFSET(sample_rate_str), AV_OPT_TYPE_STRING, {.str = "44100"}, CHAR_MIN, CHAR_MAX },
@ -78,13 +78,7 @@ static const AVOption eval_options[]= {
{NULL},
};
static const AVClass eval_class = {
.class_name = "aevalsrc",
.item_name = av_default_item_name,
.option = eval_options,
.version = LIBAVUTIL_VERSION_INT,
.category = AV_CLASS_CATEGORY_FILTER,
};
AVFILTER_DEFINE_CLASS(aevalsrc);
static int init(AVFilterContext *ctx, const char *args, void *opaque)
{
@ -93,7 +87,7 @@ static int init(AVFilterContext *ctx, const char *args, void *opaque)
char *expr, *buf, *bufptr;
int ret, i;
eval->class = &eval_class;
eval->class = &aevalsrc_class;
av_opt_set_defaults(eval);
/* parse expressions */

8
libavfilter/asrc_anullsrc.c
View File

@ -54,13 +54,7 @@ static const AVOption anullsrc_options[]= {
{ NULL },
};
static const AVClass anullsrc_class = {
.class_name = "anullsrc",
.item_name = av_default_item_name,
.option = anullsrc_options,
.version = LIBAVUTIL_VERSION_INT,
.category = AV_CLASS_CATEGORY_FILTER,
};
AVFILTER_DEFINE_CLASS(anullsrc);
static int init(AVFilterContext *ctx, const char *args, void *opaque)
{

9
libavfilter/avf_showwaves.c
View File

@ -30,6 +30,7 @@
#include "formats.h"
#include "audio.h"
#include "video.h"
#include "internal.h"
typedef struct {
const AVClass *class;
@ -54,13 +55,7 @@ static const AVOption showwaves_options[] = {
{ NULL },
};
static const AVClass showwaves_class = {
.class_name = "showwaves",
.item_name = av_default_item_name,
.option = showwaves_options,
.version = LIBAVUTIL_VERSION_INT,
.category = AV_CLASS_CATEGORY_FILTER,
};
AVFILTER_DEFINE_CLASS(showwaves);
static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
{

22
libavfilter/buffersrc.c
View File

@ -219,7 +219,7 @@ unsigned av_buffersrc_get_nb_failed_requests(AVFilterContext *buffer_src)
#define OFFSET(x) offsetof(BufferSourceContext, x)
#define V AV_OPT_FLAG_VIDEO_PARAM
static const AVOption video_options[] = {
static const AVOption buffer_options[] = {
{ "time_base", NULL, OFFSET(time_base), AV_OPT_TYPE_RATIONAL, { 0 }, 0, INT_MAX, V },
{ "frame_rate", NULL, OFFSET(frame_rate), AV_OPT_TYPE_RATIONAL, { 0 }, 0, INT_MAX, V },
{ "video_size", NULL, OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, .flags = V },
@ -230,13 +230,7 @@ static const AVOption video_options[] = {
};
#undef V
static const AVClass vbuffer_class = {
.class_name = "vbuffer source",
.item_name = av_default_item_name,
.option = video_options,
.version = LIBAVUTIL_VERSION_INT,
.category = AV_CLASS_CATEGORY_FILTER,
};
AVFILTER_DEFINE_CLASS(buffer);
static av_cold int init_video(AVFilterContext *ctx, const char *args, void *opaque)
{
@ -244,7 +238,7 @@ static av_cold int init_video(AVFilterContext *ctx, const char *args, void *opaq
char pix_fmt_str[128], sws_param[256] = "", *colon, *equal;
int ret, n = 0;
c->class = &vbuffer_class;
c->class = &buffer_class;
if (!args) {
av_log(ctx, AV_LOG_ERROR, "Arguments required\n");
@ -295,7 +289,7 @@ fail:
}
#define A AV_OPT_FLAG_AUDIO_PARAM
static const AVOption audio_options[] = {
static const AVOption abuffer_options[] = {
{ "time_base", NULL, OFFSET(time_base), AV_OPT_TYPE_RATIONAL, { 0 }, 0, INT_MAX, A },
{ "sample_rate", NULL, OFFSET(sample_rate), AV_OPT_TYPE_INT, { 0 }, 0, INT_MAX, A },
{ "sample_fmt", NULL, OFFSET(sample_fmt_str), AV_OPT_TYPE_STRING, .flags = A },
@ -303,13 +297,7 @@ static const AVOption audio_options[] = {
{ NULL },
};
static const AVClass abuffer_class = {
.class_name = "abuffer source",
.item_name = av_default_item_name,
.option = audio_options,
.version = LIBAVUTIL_VERSION_INT,
.category = AV_CLASS_CATEGORY_FILTER,
};
AVFILTER_DEFINE_CLASS(abuffer);
static av_cold int init_audio(AVFilterContext *ctx, const char *args, void *opaque)
{

9
libavfilter/internal.h
View File

@ -326,4 +326,13 @@ int ff_poll_frame(AVFilterLink *link);
*/
int ff_request_frame(AVFilterLink *link);
#define AVFILTER_DEFINE_CLASS(fname) \
static const AVClass fname##_class = { \
.class_name = #fname, \
.item_name = av_default_item_name, \
.option = fname##_options, \
.version = LIBAVUTIL_VERSION_INT, \
.category = AV_CLASS_CATEGORY_FILTER, \
}
#endif /* AVFILTER_INTERNAL_H */

8
libavfilter/src_movie.c
View File

@ -80,13 +80,7 @@ static const AVOption movie_options[]= {
{NULL},
};
static const AVClass movie_class = {
.class_name = "movie",
.item_name = av_default_item_name,
.option = movie_options,
.version = LIBAVUTIL_VERSION_INT,
.category = AV_CLASS_CATEGORY_FILTER,
};
AVFILTER_DEFINE_CLASS(movie);
static av_cold int movie_common_init(AVFilterContext *ctx, const char *args, void *opaque,
enum AVMediaType type)

9
libavfilter/vf_ass.c
View File

@ -34,6 +34,7 @@
#include "libavutil/parseutils.h"
#include "drawutils.h"
#include "avfilter.h"
#include "internal.h"
#include "formats.h"
#include "video.h"
@ -56,13 +57,7 @@ static const AVOption ass_options[] = {
{NULL},
};
static const AVClass ass_class = {
.class_name = "ass",
.item_name = av_default_item_name,
.option = ass_options,
.version = LIBAVUTIL_VERSION_INT,
.category = AV_CLASS_CATEGORY_FILTER,
};
AVFILTER_DEFINE_CLASS(ass);
/* libass supports a log level ranging from 0 to 7 */
int ass_libav_log_level_map[] = {

8
libavfilter/vf_blackdetect.c
View File

@ -58,13 +58,7 @@ static const AVOption blackdetect_options[] = {
{ NULL },
};
static const AVClass blackdetect_class = {
.class_name = "blackdetect",
.item_name = av_default_item_name,
.option = blackdetect_options,
.version = LIBAVUTIL_VERSION_INT,
.category = AV_CLASS_CATEGORY_FILTER,
};
AVFILTER_DEFINE_CLASS(blackdetect);
#define YUVJ_FORMATS \
PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUVJ444P, PIX_FMT_YUVJ440P

8
libavfilter/vf_delogo.c
View File

@ -151,13 +151,7 @@ static const AVOption delogo_options[]= {
{NULL},
};
static const AVClass delogo_class = {
.class_name = "delogo",
.item_name = av_default_item_name,
.option = delogo_options,
.version = LIBAVUTIL_VERSION_INT,
.category = AV_CLASS_CATEGORY_FILTER,
};
AVFILTER_DEFINE_CLASS(delogo);
static int query_formats(AVFilterContext *ctx)
{

8
libavfilter/vf_drawtext.c
View File

@ -207,13 +207,7 @@ static const AVOption drawtext_options[]= {
{NULL},
};
static const AVClass drawtext_class = {
.class_name = "drawtext",
.item_name = av_default_item_name,
.option = drawtext_options,
.version = LIBAVUTIL_VERSION_INT,
.category = AV_CLASS_CATEGORY_FILTER,
};
AVFILTER_DEFINE_CLASS(drawtext);
#undef __FTERRORS_H__
#define FT_ERROR_START_LIST {

8
libavfilter/vf_fade.c
View File

@ -71,13 +71,7 @@ static const AVOption fade_options[] = {
{NULL},
};
static const AVClass fade_class = {
.class_name = "fade",
.item_name = av_default_item_name,
.option = fade_options,
.version = LIBAVUTIL_VERSION_INT,
.category = AV_CLASS_CATEGORY_FILTER,
};
AVFILTER_DEFINE_CLASS(fade);
static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
{

12
libavfilter/vf_fps.c
View File

@ -55,25 +55,19 @@ typedef struct FPSContext {
#define OFFSET(x) offsetof(FPSContext, x)
#define V AV_OPT_FLAG_VIDEO_PARAM
static const AVOption options[] = {
static const AVOption fps_options[] = {
{ "fps", "A string describing desired output framerate", OFFSET(fps), AV_OPT_TYPE_STRING, { .str = "25" }, .flags = V },
{ NULL },
};
static const AVClass class = {
.class_name = "fps",
.item_name = av_default_item_name,
.option = options,
.version = LIBAVUTIL_VERSION_INT,
.category = AV_CLASS_CATEGORY_FILTER,
};
AVFILTER_DEFINE_CLASS(fps);
static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
{
FPSContext *s = ctx->priv;
int ret;
s->class = &class;
s->class = &fps_class;
av_opt_set_defaults(s);
if ((ret = av_set_options_string(s, args, "=", ":")) < 0) {

8
libavfilter/vf_lut.c
View File

@ -91,13 +91,7 @@ static const AVOption lut_options[] = {
{NULL},
};
static const AVClass lut_class = {
.class_name = "lut",
.item_name = av_default_item_name,
.option = lut_options,
.version = LIBAVUTIL_VERSION_INT,
.category = AV_CLASS_CATEGORY_FILTER,
};
AVFILTER_DEFINE_CLASS(lut);
static int init(AVFilterContext *ctx, const char *args, void *opaque)
{

8
libavfilter/vf_overlay.c
View File

@ -103,13 +103,7 @@ static const AVOption overlay_options[] = {
{NULL},
};
static const AVClass overlay_class = {
.class_name = "overlay",
.item_name = av_default_item_name,
.option = overlay_options,
.version = LIBAVUTIL_VERSION_INT,
.category = AV_CLASS_CATEGORY_FILTER,
};
AVFILTER_DEFINE_CLASS(overlay);
static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
{

9
libavfilter/vsrc_cellauto.c
View File

@ -31,6 +31,7 @@
#include "libavutil/parseutils.h"
#include "libavutil/random_seed.h"
#include "avfilter.h"
#include "internal.h"
#include "formats.h"
#include "video.h"
@ -78,13 +79,7 @@ static const AVOption cellauto_options[] = {
{ NULL },
};
static const AVClass cellauto_class = {
.class_name = "cellauto",
.item_name = av_default_item_name,
.option = cellauto_options,
.version = LIBAVUTIL_VERSION_INT,
.category = AV_CLASS_CATEGORY_FILTER,
};
AVFILTER_DEFINE_CLASS(cellauto);
#ifdef DEBUG
static void show_cellauto_row(AVFilterContext *ctx)

8
libavfilter/vsrc_color.c
View File

@ -59,13 +59,7 @@ static const AVOption color_options[]= {
{ NULL },
};
static const AVClass color_class = {
.class_name = "color",
.item_name = av_default_item_name,
.option = color_options,
.version = LIBAVUTIL_VERSION_INT,
.category = AV_CLASS_CATEGORY_FILTER,
};
AVFILTER_DEFINE_CLASS(color);
static av_cold int color_init(AVFilterContext *ctx, const char *args, void *opaque)
{

9
libavfilter/vsrc_life.c
View File

@ -32,6 +32,7 @@
#include "libavutil/parseutils.h"
#include "libavutil/random_seed.h"
#include "avfilter.h"
#include "internal.h"
#include "formats.h"
#include "video.h"
@ -97,13 +98,7 @@ static const AVOption life_options[] = {
{ NULL },
};
static const AVClass life_class = {
.class_name = "life",
.item_name = av_default_item_name,
.option = life_options,
.version = LIBAVUTIL_VERSION_INT,
.category = AV_CLASS_CATEGORY_FILTER,
};
AVFILTER_DEFINE_CLASS(life);
static int parse_rule(uint16_t *born_rule, uint16_t *stay_rule,
const char *rule_str, void *log_ctx)

9
libavfilter/vsrc_mandelbrot.c
View File

@ -29,6 +29,7 @@
#include "avfilter.h"
#include "formats.h"
#include "video.h"
#include "internal.h"
#include "libavutil/imgutils.h"
#include "libavutil/opt.h"
#include "libavutil/parseutils.h"
@ -105,13 +106,7 @@ static const AVOption mandelbrot_options[] = {
{NULL},
};
static const AVClass mandelbrot_class = {
.class_name = "mandelbrot",
.item_name = av_default_item_name,
.option = mandelbrot_options,
.version = LIBAVUTIL_VERSION_INT,
.category = AV_CLASS_CATEGORY_FILTER,
};
AVFILTER_DEFINE_CLASS(mandelbrot);
static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
{

9
libavfilter/vsrc_mptestsrc.c
View File

@ -28,6 +28,7 @@
#include "libavutil/parseutils.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "internal.h"
#include "formats.h"
#include "video.h"
@ -84,13 +85,7 @@ static const AVOption mptestsrc_options[]= {
{ NULL },
};
static const AVClass mptestsrc_class = {
.class_name = "mptestsrc",
.item_name = av_default_item_name,
.option = mptestsrc_options,
.version = LIBAVUTIL_VERSION_INT,
.category = AV_CLASS_CATEGORY_FILTER,
};
AVFILTER_DEFINE_CLASS(mptestsrc);
static double c[64];

8
libavfilter/vsrc_testsrc.c
View File

@ -194,13 +194,7 @@ AVFilter avfilter_vsrc_nullsrc = {
#if CONFIG_TESTSRC_FILTER
static const AVClass testsrc_class = {
.class_name = "testsrc",
.item_name = av_default_item_name,
.option = testsrc_options,
.version = LIBAVUTIL_VERSION_INT,
.category = AV_CLASS_CATEGORY_FILTER,
};
AVFILTER_DEFINE_CLASS(testsrc);
/**
* Fill a rectangle with value val.