19 #include <rubberband/rubberband-c.h> 44 #define OFFSET(x) offsetof(RubberBandContext, x) 45 #define A AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM 46 #define AT AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM 52 {
"crisp", 0, 0,
AV_OPT_TYPE_CONST, {.i64=RubberBandOptionTransientsCrisp}, 0, 0,
A,
"transients" },
53 {
"mixed", 0, 0,
AV_OPT_TYPE_CONST, {.i64=RubberBandOptionTransientsMixed}, 0, 0,
A,
"transients" },
54 {
"smooth", 0, 0,
AV_OPT_TYPE_CONST, {.i64=RubberBandOptionTransientsSmooth}, 0, 0,
A,
"transients" },
56 {
"compound", 0, 0,
AV_OPT_TYPE_CONST, {.i64=RubberBandOptionDetectorCompound}, 0, 0,
A,
"detector" },
57 {
"percussive", 0, 0,
AV_OPT_TYPE_CONST, {.i64=RubberBandOptionDetectorPercussive}, 0, 0,
A,
"detector" },
58 {
"soft", 0, 0,
AV_OPT_TYPE_CONST, {.i64=RubberBandOptionDetectorSoft}, 0, 0,
A,
"detector" },
60 {
"laminar", 0, 0,
AV_OPT_TYPE_CONST, {.i64=RubberBandOptionPhaseLaminar}, 0, 0,
A,
"phase" },
61 {
"independent", 0, 0,
AV_OPT_TYPE_CONST, {.i64=RubberBandOptionPhaseIndependent}, 0, 0,
A,
"phase" },
63 {
"standard", 0, 0,
AV_OPT_TYPE_CONST, {.i64=RubberBandOptionWindowStandard}, 0, 0,
A,
"window" },
64 {
"short", 0, 0,
AV_OPT_TYPE_CONST, {.i64=RubberBandOptionWindowShort}, 0, 0,
A,
"window" },
65 {
"long", 0, 0,
AV_OPT_TYPE_CONST, {.i64=RubberBandOptionWindowLong}, 0, 0,
A,
"window" },
67 {
"off", 0, 0,
AV_OPT_TYPE_CONST, {.i64=RubberBandOptionSmoothingOff}, 0, 0,
A,
"smoothing" },
68 {
"on", 0, 0,
AV_OPT_TYPE_CONST, {.i64=RubberBandOptionSmoothingOn}, 0, 0,
A,
"smoothing" },
70 {
"shifted", 0, 0,
AV_OPT_TYPE_CONST, {.i64=RubberBandOptionFormantShifted}, 0, 0,
A,
"formant" },
71 {
"preserved", 0, 0,
AV_OPT_TYPE_CONST, {.i64=RubberBandOptionFormantPreserved}, 0, 0,
A,
"formant" },
73 {
"quality", 0, 0,
AV_OPT_TYPE_CONST, {.i64=RubberBandOptionPitchHighQuality}, 0, 0,
A,
"pitch" },
74 {
"speed", 0, 0,
AV_OPT_TYPE_CONST, {.i64=RubberBandOptionPitchHighSpeed}, 0, 0,
A,
"pitch" },
75 {
"consistency", 0, 0,
AV_OPT_TYPE_CONST, {.i64=RubberBandOptionPitchHighConsistency}, 0, 0,
A,
"pitch" },
77 {
"apart", 0, 0,
AV_OPT_TYPE_CONST, {.i64=RubberBandOptionChannelsApart}, 0, 0,
A,
"channels" },
78 {
"together", 0, 0,
AV_OPT_TYPE_CONST, {.i64=RubberBandOptionChannelsTogether}, 0, 0,
A,
"channels" },
89 rubberband_delete(s->
rbs);
164 RubberBandOptionProcessRealTime;
167 rubberband_delete(s->
rbs);
204 char *res,
int res_len,
int flags)
213 rubberband_set_time_ratio(s->
rbs, 1. / s->
tempo);
214 rubberband_set_pitch_scale(s->
rbs, s->
pitch);
238 .
name =
"rubberband",
242 .priv_class = &rubberband_class,
245 .
inputs = rubberband_inputs,
static const AVFilterPad rubberband_outputs[]
This structure describes decoded (raw) audio or video data.
static int config_input(AVFilterLink *inlink)
Main libavfilter public API header.
FF_FILTER_FORWARD_STATUS(inlink, outlink)
const char * name
Pad name.
AVFilterLink ** inputs
array of pointers to input links
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
#define FF_FILTER_FORWARD_STATUS_BACK(outlink, inlink)
Forward the status on an output link to an input link.
A filter pad used for either input or output.
int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq)
Rescale a 64-bit integer by 2 rational numbers.
A link between two filters.
static int activate(AVFilterContext *ctx)
int sample_rate
samples per second
AVFrame * ff_get_audio_buffer(AVFilterLink *link, int nb_samples)
Request an audio samples buffer with a specific set of permissions.
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
int ff_filter_process_command(AVFilterContext *ctx, const char *cmd, const char *arg, char *res, int res_len, int flags)
Generic processing of user supplied commands that are set in the same way as the filter options...
void * priv
private data for use by the filter
AVRational time_base
Define the time base used by the PTS of the frames/samples which will pass through this link...
static const AVOption rubberband_options[]
static const AVFilterPad rubberband_inputs[]
audio channel layout utility functions
int ff_inlink_queued_samples(AVFilterLink *link)
static int query_formats(AVFilterContext *ctx)
static const AVFilterPad outputs[]
A list of supported channel layouts.
AVSampleFormat
Audio sample formats.
int ff_inlink_consume_samples(AVFilterLink *link, unsigned min, unsigned max, AVFrame **rframe)
Take samples from the link's FIFO and update the link's stats.
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several inputs
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
Describe the class of an AVClass context structure.
int ff_outlink_get_status(AVFilterLink *link)
Get the status on an output link.
Rational number (pair of numerator and denominator).
static av_cold void uninit(AVFilterContext *ctx)
const char * name
Filter name.
AVFilterLink ** outputs
array of pointers to output links
enum MovChannelLayoutTag * layouts
#define flags(name, subs,...)
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
The exact code depends on how similar the blocks are and how related they are to the and needs to apply these operations to the correct inlink or outlink if there are several Macros are available to factor that when no extra processing is inlink
AVFilter ff_af_rubberband
common internal and external API header
void ff_filter_set_ready(AVFilterContext *filter, unsigned priority)
Mark a filter ready and schedule it for activation.
int channels
Number of channels.
FF_FILTER_FORWARD_WANTED(outlink, inlink)
AVFilterContext * dst
dest filter
AVFILTER_DEFINE_CLASS(rubberband)
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
static enum AVSampleFormat sample_fmts[]
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later.That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another.Frame references ownership and permissions
int nb_samples
number of audio samples (per channel) described by this frame
#define AV_NOPTS_VALUE
Undefined timestamp value.