27 #include <lilv/lilv.h>
28 #include <lv2/lv2plug.in/ns/ext/atom/atom.h>
29 #include <lv2/lv2plug.in/ns/ext/buf-size/buf-size.h>
91 #define OFFSET(x) offsetof(LV2Context, x)
92 #define FLAGS AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_FILTERING_PARAM
101 {
"nb_samples",
"set the number of samples per requested frame",
OFFSET(nb_samples),
AV_OPT_TYPE_INT, {.i64=1024}, 1, INT_MAX,
FLAGS },
102 {
"n",
"set the number of samples per requested frame",
OFFSET(nb_samples),
AV_OPT_TYPE_INT, {.i64=1024}, 1, INT_MAX,
FLAGS },
120 for (
i = 0;
i <
table->n_uris;
i++) {
130 const size_t len = strlen(uri);
134 for (
i = 0;
i <
table->n_uris;
i++) {
135 if (!strcmp(
table->uris[
i], uri)) {
142 return table->n_uris;
149 return table->n_uris;
154 return table->n_uris;
161 if (urid > 0 && urid <= table->n_uris) {
162 return table->uris[urid - 1];
170 int ich = 0, och = 0,
i;
172 for (
i = 0;
i <
s->nb_ports;
i++) {
173 const LilvPort *port = lilv_plugin_get_port_by_index(
s->plugin,
i);
175 if (lilv_port_is_a(
s->plugin, port,
s->lv2_AudioPort) ||
176 lilv_port_is_a(
s->plugin, port,
s->lv2_CVPort)) {
177 if (lilv_port_is_a(
s->plugin, port,
s->lv2_InputPort)) {
178 lilv_instance_connect_port(
s->instance,
i,
in->extended_data[ich++]);
179 }
else if (lilv_port_is_a(
s->plugin, port,
s->lv2_OutputPort)) {
180 lilv_instance_connect_port(
s->instance,
i,
out->extended_data[och++]);
184 }
else if (lilv_port_is_a(
s->plugin, port,
s->atom_AtomPort)) {
185 if (lilv_port_is_a(
s->plugin, port,
s->lv2_InputPort)) {
186 lilv_instance_connect_port(
s->instance,
i, &
s->seq_in);
188 lilv_instance_connect_port(
s->instance,
i,
s->seq_out);
190 }
else if (lilv_port_is_a(
s->plugin, port,
s->lv2_ControlPort)) {
191 lilv_instance_connect_port(
s->instance,
i, &
s->controls[
i]);
195 s->seq_in[0].atom.size =
sizeof(LV2_Atom_Sequence_Body);
196 s->seq_in[0].atom.type =
uri_table_map(&
s->uri_table, LV2_ATOM__Sequence);
197 s->seq_out->atom.size = 9624;
207 if (!
s->nb_outputs ||
221 lilv_instance_run(
s->instance,
in->nb_samples);
240 if (
s->duration >= 0 && t >=
s->duration)
249 lilv_instance_run(
s->instance,
out->nb_samples);
251 out->sample_rate =
s->sample_rate;
253 s->pts +=
s->nb_samples;
259 { LV2_BUF_SIZE__powerOf2BlockLength,
NULL },
260 { LV2_BUF_SIZE__fixedBlockLength,
NULL },
261 { LV2_BUF_SIZE__boundedBlockLength,
NULL },
268 char *p, *
arg, *saveptr =
NULL;
272 s->map.handle = &
s->uri_table;
274 s->map_feature.URI = LV2_URID_MAP_URI;
275 s->map_feature.data = &
s->map;
276 s->unmap.handle = &
s->uri_table;
278 s->unmap_feature.URI = LV2_URID_UNMAP_URI;
279 s->unmap_feature.data = &
s->unmap;
280 s->features[0] = &
s->map_feature;
281 s->features[1] = &
s->unmap_feature;
286 if (
ctx->nb_inputs) {
291 if (
s->nb_inputs ==
s->nb_outputs) {
301 s->instance = lilv_plugin_instantiate(
s->plugin,
sample_rate,
s->features);
303 av_log(
s,
AV_LOG_ERROR,
"Failed to instantiate <%s>\n", lilv_node_as_uri(lilv_plugin_get_uri(
s->plugin)));
309 s->controls =
av_calloc(
s->nb_ports,
sizeof(
float));
311 if (!
s->mins || !
s->maxes || !
s->controls)
314 lilv_plugin_get_port_ranges_float(
s->plugin,
s->mins,
s->maxes,
s->controls);
315 s->seq_out =
av_malloc(
sizeof(LV2_Atom_Sequence) + 9624);
319 if (
s->options && !strcmp(
s->options,
"help")) {
320 if (!
s->nb_inputcontrols) {
322 "The '%s' plugin does not have any input controls.\n",
326 "The '%s' plugin has the following input controls:\n",
328 for (
i = 0;
i <
s->nb_ports;
i++) {
329 const LilvPort *port = lilv_plugin_get_port_by_index(
s->plugin,
i);
330 const LilvNode *symbol = lilv_port_get_symbol(
s->plugin, port);
331 LilvNode *
name = lilv_port_get_name(
s->plugin, port);
333 if (lilv_port_is_a(
s->plugin, port,
s->lv2_InputPort) &&
334 lilv_port_is_a(
s->plugin, port,
s->lv2_ControlPort)) {
336 lilv_node_as_string(symbol),
s->mins[
i],
s->maxes[
i],
s->controls[
i],
337 lilv_node_as_string(
name));
340 lilv_node_free(
name);
348 const LilvPort *port;
358 vstr = strstr(
arg,
"=");
367 sym = lilv_new_string(
s->world,
str);
368 port = lilv_plugin_get_port_by_symbol(
s->plugin, sym);
373 index = lilv_port_get_index(
s->plugin, port);
379 (lilv_plugin_has_feature(
s->plugin,
s->powerOf2BlockLength) ||
380 lilv_plugin_has_feature(
s->plugin,
s->fixedBlockLength) ||
381 lilv_plugin_has_feature(
s->plugin,
s->boundedBlockLength))) {
393 const LilvPlugins *plugins;
394 const LilvPlugin *plugin;
399 s->world = lilv_world_new();
403 uri = lilv_new_uri(
s->world,
s->plugin_uri);
409 lilv_world_load_all(
s->world);
410 plugins = lilv_world_get_all_plugins(
s->world);
411 plugin = lilv_plugins_get_by_uri(plugins, uri);
420 s->nb_ports = lilv_plugin_get_num_ports(
s->plugin);
422 s->lv2_InputPort = lilv_new_uri(
s->world, LV2_CORE__InputPort);
423 s->lv2_OutputPort = lilv_new_uri(
s->world, LV2_CORE__OutputPort);
424 s->lv2_AudioPort = lilv_new_uri(
s->world, LV2_CORE__AudioPort);
425 s->lv2_ControlPort = lilv_new_uri(
s->world, LV2_CORE__ControlPort);
426 s->lv2_Optional = lilv_new_uri(
s->world, LV2_CORE__connectionOptional);
427 s->atom_AtomPort = lilv_new_uri(
s->world, LV2_ATOM__AtomPort);
428 s->atom_Sequence = lilv_new_uri(
s->world, LV2_ATOM__Sequence);
429 s->urid_map = lilv_new_uri(
s->world, LV2_URID__map);
430 s->powerOf2BlockLength = lilv_new_uri(
s->world, LV2_BUF_SIZE__powerOf2BlockLength);
431 s->fixedBlockLength = lilv_new_uri(
s->world, LV2_BUF_SIZE__fixedBlockLength);
432 s->boundedBlockLength = lilv_new_uri(
s->world, LV2_BUF_SIZE__boundedBlockLength);
434 for (
i = 0;
i <
s->nb_ports;
i++) {
435 const LilvPort *lport = lilv_plugin_get_port_by_index(
s->plugin,
i);
439 is_optional = lilv_port_has_property(
s->plugin, lport,
s->lv2_Optional);
441 if (lilv_port_is_a(
s->plugin, lport,
s->lv2_InputPort)) {
443 }
else if (!lilv_port_is_a(
s->plugin, lport,
s->lv2_OutputPort) && !is_optional) {
447 if (lilv_port_is_a(
s->plugin, lport,
s->lv2_ControlPort)) {
449 s->nb_inputcontrols++;
451 }
else if (lilv_port_is_a(
s->plugin, lport,
s->lv2_AudioPort)) {
510 if (
s->nb_inputs == 2 &&
s->nb_outputs == 2) {
519 if (
s->nb_inputs >= 1) {
531 if (!
s->nb_outputs) {
538 if (
s->nb_outputs >= 1) {
558 lilv_node_free(
s->powerOf2BlockLength);
559 lilv_node_free(
s->fixedBlockLength);
560 lilv_node_free(
s->boundedBlockLength);
561 lilv_node_free(
s->urid_map);
562 lilv_node_free(
s->atom_Sequence);
563 lilv_node_free(
s->atom_AtomPort);
564 lilv_node_free(
s->lv2_Optional);
565 lilv_node_free(
s->lv2_ControlPort);
566 lilv_node_free(
s->lv2_AudioPort);
567 lilv_node_free(
s->lv2_OutputPort);
568 lilv_node_free(
s->lv2_InputPort);
570 lilv_instance_free(
s->instance);
571 lilv_world_free(
s->world);
595 .priv_class = &lv2_class,
static enum AVSampleFormat sample_fmts[]
static double val(void *priv, double ch)
static const AVFilterPad inputs[]
static const AVFilterPad outputs[]
AVFILTER_DEFINE_CLASS(lv2)
static const AVFilterPad lv2_outputs[]
static void uri_table_init(URITable *table)
static int query_formats(AVFilterContext *ctx)
static int request_frame(AVFilterLink *outlink)
static const AVOption lv2_options[]
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
static void uri_table_destroy(URITable *table)
static void connect_ports(LV2Context *s, AVFrame *in, AVFrame *out)
static av_cold int init(AVFilterContext *ctx)
static av_cold void uninit(AVFilterContext *ctx)
static int config_output(AVFilterLink *outlink)
static LV2_URID uri_table_map(LV2_URID_Map_Handle handle, const char *uri)
static const LV2_Feature buf_size_features[3]
static const char * uri_table_unmap(LV2_URID_Map_Handle handle, LV2_URID urid)
AVFrame * ff_get_audio_buffer(AVFilterLink *link, int nb_samples)
Request an audio samples buffer with a specific set of permissions.
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(const int16_t *) pi >> 8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(const int32_t *) pi >> 24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) #define SET_CONV_FUNC_GROUP(ofmt, ifmt) static void set_generic_function(AudioConvert *ac) { } void ff_audio_convert_free(AudioConvert **ac) { if(! *ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);} AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, int sample_rate, int apply_map) { AudioConvert *ac;int in_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) return NULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method !=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt) > 2) { ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc) { av_free(ac);return NULL;} return ac;} in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar) { ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar ? ac->channels :1;} else if(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;else ac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);return ac;} int ff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in) { int use_generic=1;int len=in->nb_samples;int p;if(ac->dc) { av_log(ac->avr, AV_LOG_TRACE, "%d samples - audio_convert: %s to %s (dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));return ff_convert_dither(ac-> in
simple assert() macros that are a bit more flexible than ISO C assert().
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
int ff_request_frame(AVFilterLink *link)
Request an input frame from the filter at the other end of the link.
Main libavfilter public API header.
char * av_asprintf(const char *fmt,...)
#define flags(name, subs,...)
audio channel layout utility functions
const OptionDef options[]
#define AV_CH_LAYOUT_STEREO
#define AVFILTER_FLAG_DYNAMIC_INPUTS
The number of the filter inputs is not determined just by AVFilter.inputs.
#define AVERROR_EXIT
Immediate exit was requested; the called function should not be restarted.
#define AVERROR_EOF
End of file.
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
#define AV_LOG_WARNING
Something somehow does not look correct.
#define AV_LOG_INFO
Standard information.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
int64_t av_rescale(int64_t a, int64_t b, int64_t c)
Rescale a 64-bit integer with rounding to nearest.
void * av_calloc(size_t nmemb, size_t size)
Non-inlined equivalent of av_mallocz_array().
AVSampleFormat
Audio sample formats.
@ AV_SAMPLE_FMT_FLTP
float, planar
char * av_strtok(char *s, const char *delim, char **saveptr)
Split the string into several tokens which can be accessed by successive calls to av_strtok().
#define AV_TIME_BASE
Internal time base represented as integer.
static int ff_insert_inpad(AVFilterContext *f, unsigned index, AVFilterPad *p)
Insert a new input pad for the filter.
common internal API header
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
enum MovChannelLayoutTag * layouts
static const uint16_t table[]
Describe the class of an AVClass context structure.
A list of supported channel layouts.
A link between two filters.
AVFilterFormatsConfig incfg
Lists of supported formats / etc.
int max_samples
Maximum number of samples to filter at once.
int channels
Number of channels.
AVFilterFormatsConfig outcfg
Lists of supported formats / etc.
int partial_buf_size
Size of the partial buffer to allocate.
AVFilterContext * src
source filter
AVRational time_base
Define the time base used by the PTS of the frames/samples which will pass through this link.
int sample_rate
samples per second
uint64_t channel_layout
channel layout of current buffer (see libavutil/channel_layout.h)
AVFilterContext * dst
dest filter
int format
agreed upon media format
int min_samples
Minimum number of samples to filter at once.
A filter pad used for either input or output.
enum AVMediaType type
AVFilterPad type.
int(* filter_frame)(AVFilterLink *link, AVFrame *frame)
Filtering callback.
const char * name
Pad name.
const char * name
Filter name.
This structure describes decoded (raw) audio or video data.
Rational number (pair of numerator and denominator).
LilvNode * lv2_ControlPort
const LV2_Feature * features[5]
LV2_Atom_Sequence seq_in[2]
LV2_Atom_Sequence * seq_out
LilvNode * boundedBlockLength
LV2_Feature unmap_feature
LilvNode * powerOf2BlockLength
LilvNode * lv2_OutputPort
LilvNode * fixedBlockLength
unsigned nb_inputcontrols
const LilvPlugin * plugin