On Sun, Jun 14, 2020 at 10:34 PM Paul B Mahol <one...@gmail.com> wrote:
> On 6/5/20, Ashutosh Pradhan <ashutoshp012...@gmail.com> wrote: > > diff --git a/Changelog b/Changelog > > index 711c843b99..905b91b570 100644 > > --- a/Changelog > > +++ b/Changelog > > @@ -75,7 +75,7 @@ version <next>: > > - PFM decoder > > - dblur video filter > > - Real War KVAG muxer > > - > > +- atone filter > > > > version 4.2: > > - tpad filter > > diff --git a/configure b/configure > > index 8569a60bf8..954e35d62c 100755 > > --- a/configure > > +++ b/configure > > @@ -233,6 +233,7 @@ External library support: > > and libraw1394 [no] > > --enable-libfdk-aac enable AAC de/encoding via libfdk-aac [no] > > --enable-libflite enable flite (voice synthesis) support via > > libflite [no] > > + --enable-libfluidsynth enable libfluidsynth support for fluidsynth > [no] > > --enable-libfontconfig enable libfontconfig, useful for drawtext > filter > > [no] > > --enable-libfreetype enable libfreetype, needed for drawtext > filter > > [no] > > --enable-libfribidi enable libfribidi, improves drawtext filter > [no] > > @@ -1772,6 +1773,7 @@ EXTERNAL_LIBRARY_LIST=" > > libdc1394 > > libdrm > > libflite > > + libfluidsynth > > libfontconfig > > libfreetype > > libfribidi > > @@ -3484,6 +3486,7 @@ asr_filter_deps="pocketsphinx" > > ass_filter_deps="libass" > > atempo_filter_deps="avcodec" > > atempo_filter_select="rdft" > > +atone_filter_deps="libfluidsynth" > > avgblur_opencl_filter_deps="opencl" > > avgblur_vulkan_filter_deps="vulkan libglslang" > > azmq_filter_deps="libzmq" > > @@ -6304,6 +6307,7 @@ enabled libfdk_aac && { check_pkg_config > > libfdk_aac fdk-aac "fdk-aac/aace > > warn "using libfdk without > pkg-config"; } > > } > > flite_extralibs="-lflite_cmu_time_awb -lflite_cmu_us_awb > -lflite_cmu_us_kal > > -lflite_cmu_us_kal16 -lflite_cmu_us_rms -lflite_cmu_us_slt > -lflite_usenglish > > -lflite_cmulex -lflite" > > enabled libflite && require libflite "flite/flite.h" flite_init > > $flite_extralibs > > +enabled libfluidsynth && require_pkg_config libfluidsynth fluidsynth > > "fluidsynth.h" fluid_log > > enabled fontconfig && enable libfontconfig > > enabled libfontconfig && require_pkg_config libfontconfig fontconfig > > "fontconfig/fontconfig.h" FcInit > > enabled libfreetype && require_pkg_config libfreetype freetype2 > > "ft2build.h FT_FREETYPE_H" FT_Init_FreeType > > diff --git a/doc/filters.texi b/doc/filters.texi > > index f76604c51e..fc34f76bee 100644 > > --- a/doc/filters.texi > > +++ b/doc/filters.texi > > @@ -6125,6 +6125,62 @@ anoisesrc=d=60:c=pink:r=44100:a=0.5 > > @end example > > @end itemize > > > > +@section atone > > + > > +Generate algorithmic riff music. > > +To compile filter configure ffmpeg with @code{--enable-libfluidsynth} > > + > > +The filter accepts the following options: > > + > > +@table @option > > +@item sample_rate, r > > +Specify the sample rate. Default value is 44100 Hz. > > + > > +@item sfont > > +Specify the location of soundfont file. Default value is > > +"/usr/share/sounds/sf2/FluidR3_GM.sf2"(for linux). > > + > > +@item duration, d > > +Specify the duration of the generated audio stream. Not specifying this > > option > > +results in playing tones for infinite length. > > + > > +@item velocity, v > > +Specify the velocity of key press. Default value is 80. > > + > > +@item percussion_velocity > > +Specify the velocity of key press for percussion track. Default value is > > 127. > > Doesn't those two can be set per note, thus making it little weird to be > global? > Yeah, it can be set per note but how should I make it(velocity/volume) a user-defined input then? > > > + > > +@item bpm > > +Specify the beats per minute. Default is 100. > > + > > +@item instrument > > +Specify the instrument. Available instruments are Acoustic-Grand, > > +Bright-Acoustic, ... as defined in the General Midi specifications. > Default > > is Trumpet. > > + > > +@item percussion > > +Specify the percussion track for beats. Available options are Jazz1, > > +Jazz2, ..., Jazz6, Rock1...4, Shuffle, Metronome. Default is Metronome. > > + > > +@item numbars > > +Set the number of bars in which riff energy will change between 0 to 8. > > Default is 2. > > + > > +@item samples_per_frame > > +Set the number of samples per each output frame. Default is 1024. > > +@end table > > + > > +@subsection Examples > > + > > +@itemize > > + > > +@item > > +Generate 10 seconds of riff music, with a key velocity of 100, > instrument > > as Electric Guitar(jazz) > > +and percussion track as Jazz3: > > +@example > > > +atone=d=10:v=100:sfont="example.sf2":instrument=Electric-Guitar-Jazz:percussion=Jazz3 > > > +atone=duration=10:velocity=100:sfont="example.sf2":instrument=Electric-Guitar-Jazz:percussion=Jazz3 > > +@end example > > +@end itemize > > + > > @section hilbert > > > > Generate odd-tap Hilbert transform FIR coefficients. > > diff --git a/libavfilter/Makefile b/libavfilter/Makefile > > index 5123540653..b0938830f2 100644 > > --- a/libavfilter/Makefile > > +++ b/libavfilter/Makefile > > @@ -152,6 +152,7 @@ OBJS-$(CONFIG_FLITE_FILTER) += > > asrc_flite.o > > OBJS-$(CONFIG_HILBERT_FILTER) += asrc_hilbert.o > > OBJS-$(CONFIG_SINC_FILTER) += asrc_sinc.o > > OBJS-$(CONFIG_SINE_FILTER) += asrc_sine.o > > +OBJS-$(CONFIG_ATONE_FILTER) += asrc_atone.o > > > > OBJS-$(CONFIG_ANULLSINK_FILTER) += asink_anullsink.o > > > > diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c > > index 1183e40267..90f266a2d9 100644 > > --- a/libavfilter/allfilters.c > > +++ b/libavfilter/allfilters.c > > @@ -146,6 +146,7 @@ extern AVFilter ff_asrc_flite; > > extern AVFilter ff_asrc_hilbert; > > extern AVFilter ff_asrc_sinc; > > extern AVFilter ff_asrc_sine; > > +extern AVFilter ff_asrc_atone; > > > > extern AVFilter ff_asink_anullsink; > > > > diff --git a/libavfilter/asrc_atone.c b/libavfilter/asrc_atone.c > > new file mode 100644 > > index 0000000000..a6a8b8167d > > --- /dev/null > > +++ b/libavfilter/asrc_atone.c > > @@ -0,0 +1,481 @@ > > +/* > > + * This file is part of FFmpeg. > > + * > > + * FFmpeg is free software; you can redistribute it and/or > > + * modify it under the terms of the GNU Lesser General Public License > > + * as published by the Free Software Foundation; either > > + * version 2.1 of the License, or (at your option) any later version. > > + * > > + * FFmpeg is distributed in the hope that it will be useful, > > + * but WITHOUT ANY WARRANTY; without even the implied warranty of > > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > > + * GNU Lesser General Public License for more details. > > + * > > + * You should have received a copy of the GNU Lesser General Public > License > > + * along with FFmpeg; if not, write to the Free Software Foundation, > Inc., > > + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA > > + */ > > +#include <float.h> > > +#include <stdio.h> > > +#include <string.h> > > +#include <fluidsynth.h> > > +#include <stdlib.h> > > +#include <unistd.h> > > + > > +#include "libavutil/avassert.h" > > +#include "libavutil/channel_layout.h" > > +#include "libavutil/eval.h" > > +#include "libavutil/opt.h" > > +#include "libavutil/lfg.h" > > +#include "libavutil/random_seed.h" > > +#include "audio.h" > > +#include "avfilter.h" > > +#include "internal.h" > > +#include "notedef.h" > > + > > +typedef struct AtoneContext > > +{ > > + const AVClass* class; > > Please keep style same as other code, so use "AVClass *class". > Look for all other such cases. > Will fix > > + int64_t duration; > > + int nb_samples; > > + int sample_rate; > > + int64_t pts; > > + int infinite; > > + > > + fluid_settings_t* settings; > > + fluid_synth_t* synth; > > + fluid_sequencer_t *sequencer; > > ditto. > > > + short synth_destination, client_destination; > > + unsigned int beat_dur; > > + unsigned int beats_pm; > > + unsigned int time_marker; > > + char *sfont; ///< soundfont file > > + int velocity; ///< velocity of key > > + int percussion_velocity; ///< velocity of key in percussion > > + double changerate; > > + > > + int *riffs; > > + int numriffs; > > + int last_note; > > + int framecount; > > + char *instrument; > > + percussion track; > > + char *track_name; > > + int numbars; > > + > > +}AtoneContext; > > + > > +#define CONTEXT AtoneContext > > +#define FLAGS AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM > > + > > +#define OPT_GENERIC(name, field, def, min, max, descr, type, deffield, > ...) > > \ > > + { name, descr, offsetof(CONTEXT, field), AV_OPT_TYPE_ ## type, > > \ > > + { .deffield = def }, min, max, FLAGS, __VA_ARGS__ } > > + > > +#define OPT_INT(name, field, def, min, max, descr, ...) \ > > + OPT_GENERIC(name, field, def, min, max, descr, INT, i64, > __VA_ARGS__) > > + > > +#define OPT_DBL(name, field, def, min, max, descr, ...) \ > > + OPT_GENERIC(name, field, def, min, max, descr, DOUBLE, dbl, > > __VA_ARGS__) > > + > > +#define OPT_DUR(name, field, def, min, max, descr, ...) \ > > + OPT_GENERIC(name, field, def, min, max, descr, DURATION, str, > > __VA_ARGS__) > > + > > +#define OPT_STR(name, field, def, min, max, descr, ...) \ > > + OPT_GENERIC(name, field, def, min, max, descr, STRING, str, > > __VA_ARGS__) > > + > > +static const AVOption atone_options[] = { > > + OPT_INT("velocity", velocity, 80, > > 0, 127, "set the velocity of > > key press",), > > + OPT_INT("v", velocity, 80, > > 0, 127, "set the velocity of > > key press",), > > + OPT_INT("percussion_velocity",percussion_velocity, 127, > > 0, 127, "set the velocity of > > key press",), > > + OPT_INT("sample_rate", sample_rate, 44100, > > 1, INT_MAX, "set the sample > > rate",), > > + OPT_INT("r", sample_rate, 44100, > > 1, INT_MAX, "set the sample > > rate",), > > + OPT_DUR("duration", duration, 0, > > 0, INT64_MAX, "set the audio > > duration",), > > + OPT_DUR("d", duration, 0, > > 0, INT64_MAX, "set the audio > > duration",), > > + OPT_STR("sfont", sfont, > > "/usr/share/sounds/sf2/FluidR3_GM.sf2", 0, 0, "set > the > > soundfont file",), > > + OPT_INT("samples_per_frame", nb_samples, 1024, > > 0, INT_MAX, "set the number of > > samples per frame",), > > + OPT_INT("bpm", beats_pm, 100, > > 0, INT_MAX, "set the beats per > > minute",), > > + OPT_STR("instrument", instrument, "Trumpet", > > 0, 0, "set the > instrument",), > > + OPT_STR("percussion", track_name, > "Metronome", > > 0, 0, "set the percussion > > track",), > > + OPT_INT("numbars", numbars, 2, > > 0, 8, "set the riff > bars",), > > + {NULL} > > +}; > > + > > +AVFILTER_DEFINE_CLASS(atone); > > + > > +static void sequencer_callback(unsigned int time, fluid_event_t *event, > > fluid_sequencer_t *seq, void* data); > > +static void instrument_select(int prog_no, unsigned int ticks, > > AtoneContext* s); > > +static int find_instrument(const char* instrument); > > +static void set_percussion_track(AtoneContext *s); > > + > > +static av_cold int init(AVFilterContext *ctx) > > +{ > > + AtoneContext *s = ctx->priv; > > + int sfont_id; > > + > > + /*Initialise the fluidsynth settings object followed by > synthesizer*/ > > + s->settings = new_fluid_settings(); > > + if (s->settings == NULL){ > > Style issue missing space between ) and {. > Please fix all such similar cases. > Will fix > > > + av_log(s, AV_LOG_ERROR, "Failed to create the fluidsynth > > settings"); > > + return AVERROR_EXTERNAL; > > + } > > + > > + s->synth = new_fluid_synth(s->settings); > > + if (s->synth == NULL){ > > + av_log(s, AV_LOG_ERROR, "Failed to create the fluidsynth > synth"); > > + return AVERROR_EXTERNAL; > > + } > > + > > + sfont_id = fluid_synth_sfload(s->synth, s->sfont, 1); > > + if(sfont_id == FLUID_FAILED){ > > + av_log(s, AV_LOG_ERROR, "Loading the Soundfont Failed"); > > + return AVERROR_EXTERNAL; > > + } > > + > > + if (!(s->riffs = av_malloc(sizeof(riff)))) > > + return AVERROR(ENOMEM); > > + > > + s->framecount=0; > > + srand(getpid()); > > srand can not be used, it is not portable. > > Please for random numbers use av_lfg and and av_get_random_seed from > libavutil. > Will change > > > + s->sequencer = new_fluid_sequencer2(0); > > + /* register the synth with the sequencer */ > > + s->synth_destination = > > fluid_sequencer_register_fluidsynth(s->sequencer, s->synth); > > + /* register the client name and callback */ > > + s->client_destination = > fluid_sequencer_register_client(s->sequencer, > > "atone", sequencer_callback, s); > > + > > + s->time_marker = fluid_sequencer_get_tick(s->sequencer); > > + /*get the beat duration in TICKS 1 quarter note per beat*/ > > + s->beat_dur = 60000/s->beats_pm; > > + /*get change interval in frames/sec*/ > > + s->changerate = (4*s->beat_dur)*s->sample_rate/s->nb_samples; > > + if (s->changerate<1.0) > > + s->changerate = 1.0; > > + > > + s->last_note = 0; > > + s->numriffs = sizeof(riff)/(NPR* sizeof(int)); > > + > > + for (int i = 0; i < s->numriffs*NPR ; i++) > > + s->riffs[i] = riff[i]; > > + > > + set_percussion_track(s); > > + instrument_select(find_instrument(s->instrument), s->time_marker, > s); > > + > > + return 0; > > +} > > + > > +static av_cold void uninit(AVFilterContext *ctx) > > +{ > > + AtoneContext *s = ctx->priv; > > + > > + delete_fluid_sequencer(s->sequencer); > > + delete_fluid_synth(s->synth); > > + delete_fluid_settings(s->settings); > > + av_freep(&s->riffs); > > +} > > + > > +static av_cold int config_props(AVFilterLink *outlink) > > +{ > > + AtoneContext *s = outlink->src->priv; > > + > > + if (s->duration == 0) > > + s->infinite = 1; > > + > > + s->duration = av_rescale(s->duration, s->sample_rate, AV_TIME_BASE); > > + > > + if (s->framecount == INT_MAX) > > + s->framecount = 0; > > + > > + > > + return 0; > > +} > > + > > +static void set_percussion_track(AtoneContext *s){ > > + int i; > > + > > + for (i = 0 ; i < > sizeof(percussion_tracks)/sizeof(percussion_tracks[0]) > > ; i++) > > + if (strcmp(percussion_tracks[i], s->track_name) == 0) > > + break; > > + > > + switch (i) > > + { > > { of switch should be put in same line as switch string. > > > + case 0: s->track = Track_1; break; > > + case 1: s->track = Track_2; break; > > + case 2: s->track = Track_3; break; > > + case 3: s->track = Track_4; break; > > + case 4: s->track = Track_5; break; > > + case 5: s->track = Track_6; break; > > + case 6: s->track = Track_7; break; > > + case 7: s->track = Track_8; break; > > + case 8: s->track = Track_9; break; > > + case 9: s->track = Track_10; break; > > + case 10: s->track = Track_11; break; > > + default: s->track = Track_12; break; > > + } > > +} > > + > > +static int find_instrument(const char* instrument) > > +{ > > + for (int i = 0; i < > > sizeof(GM_instrument_list)/sizeof(GM_instrument_list[0]); i++) > > + if (strcmp(GM_instrument_list[i], instrument) == 0) > > + return i; > > + > > + return 0; > > +} > > + > > +static void instrument_select(int prog_no, unsigned int ticks, > > AtoneContext* s) > > +{ > > + fluid_event_t *ev = new_fluid_event(); > > + > > + fluid_event_set_source(ev, -1); > > + fluid_event_set_dest(ev,s->synth_destination); > > + fluid_event_program_change(ev, 0, prog_no); > > + fluid_sequencer_send_at(s->sequencer, ev, ticks, 1); > > + delete_fluid_event(ev); > > +} > > + > > +/* schedule a note on message */ > > +static void schedule_noteon(int chan, short key, unsigned int ticks, int > > velocity, AtoneContext* s) > > +{ > > + fluid_event_t *ev = new_fluid_event(); > > + > > + fluid_event_set_source(ev, -1); > > + fluid_event_set_dest(ev,s->synth_destination); > > + fluid_event_noteon(ev, chan, key, velocity); > > + fluid_sequencer_send_at(s->sequencer, ev, ticks, 1); > > + delete_fluid_event(ev); > > +} > > + > > +/* schedule a note off message */ > > +static void schedule_noteoff(int chan, short key, unsigned int ticks, > > AtoneContext* s) > > +{ > > + fluid_event_t *ev = new_fluid_event(); > > + > > + fluid_event_set_source(ev, -1); > > + fluid_event_set_dest(ev, s->synth_destination); > > + fluid_event_noteoff(ev, chan, key); > > + fluid_sequencer_send_at(s->sequencer, ev, ticks, 1); > > + delete_fluid_event(ev); > > +} > > + > > +/* schedule a timer event to trigger the callback */ > > +static void schedule_timer_event(AtoneContext* s) > > +{ > > + fluid_event_t *ev = new_fluid_event(); > > + > > + fluid_event_set_source(ev, -1); > > + fluid_event_set_dest(ev, s->client_destination); > > + fluid_event_timer(ev, NULL); > > + fluid_sequencer_send_at(s->sequencer, ev, s->time_marker, 1); > > + delete_fluid_event(ev); > > +} > > + > > +/*Determine the closest riff to the previous riff within three tries to > > make the transition between riffs smoother*/ > > +static int pick_riff(AtoneContext* s) > > +{ > > + int min, dn, riff, bestriff; > > + > > + min = 999; > > + for (int i = 2; i >= 0; i--) > > + { > > + riff = (rand()%RAND_MAX)%s->numriffs; > > As already mentioned, do not use rand(). > > > + if (s->last_note == 0) > > + return(riff); > > + dn = abs(s->last_note - s->riffs[riff*NPR]); > > + if (dn == 0) > > + dn = 6; > > + if (dn < min){ > > + bestriff = riff; > > + min = dn; > > + } > > + } > > + return bestriff; > > + > > +} > > + > > +/*Determine the energy of the player which will affect the number of > rests > > and holding tones*/ > > +static int energy_calc(int i, int numbars) > > +{ > > + if (3*i < numbars) > > + return (100 - (90*i)/numbars); > > + else if (3*i > 2*numbars) > > + return (40 + (90*i)/numbars); > > + return 70; > > +} > > + > > +static void play_riff(int riff, int energy, int note_duration, int > > note_time, AtoneContext* s) > > +{ > > + int pnd = 0, next; > > + short pn = 0 ; > > + /*Beat importance values chosen such that off beat values are more > > likely to be skipped than on beat*/ > > + int biv[] = {28, 0, 7, 0, 14, 0, 7, 4}; > > + > > + for (int i = 0; i < NPR; i++) > > + { > > + next = s->riffs[riff*NPR + i]; > > + if (next != H && next != R && ((energy + biv[i]) < rand()%100)) > > + next = (rand() < RAND_MAX/2)? H : R; > > + if (next == H){ > > + pnd ++; > > + continue; > > + } > > + > > + if (pn != R){ > > + schedule_noteon(0, pn, note_time, s->velocity, s); > > + note_time += pnd*note_duration; > > + schedule_noteoff(0, pn, note_time, s); > > + s->last_note = pn; > > + } > > + pn = next; > > + pnd = 1; > > + } > > + > > + if (pn != R && pn != H){ > > + schedule_noteon(0, pn, note_time, s->velocity, s); > > + note_time += pnd*note_duration; > > + schedule_noteoff(0, pn, note_time, s); > > + s->last_note = pn; > > + } > > + > > +} > > + > > +static void play_percussion(AtoneContext *s) > > +{ > > + int note_time = s->time_marker; > > + > > + for (int i = 0; i < s->track.length; i++) > > + { > > + /*percussion instruments in channel 10 */ > > + schedule_noteon(9, s->track.note[i].instrument_1, note_time, > > s->percussion_velocity, s); > > + schedule_noteon(9, s->track.note[i].instrument_2, note_time, > > s->percussion_velocity,s); > > + schedule_noteon(9, s->track.note[i].instrument_3, note_time, > > s->percussion_velocity,s); > > + /*Multiply by 4 as quarter note takes 1 beat, Whole note takes 4 > > beats and so on*/ > > + note_time += 4*s->beat_dur/s->track.note[i].beat; > > + schedule_noteoff(9, s->track.note[i].instrument_1, note_time, > s); > > + schedule_noteoff(9, s->track.note[i].instrument_2, note_time, > s); > > + schedule_noteoff(9, s->track.note[i].instrument_3, note_time, > s); > > + } > > +} > > + > > +/*Determine the pattern, tempo (to paly as 8th, 16th or 32nd notes) and > add > > the riffs to sequencer > > +Refernce: http://peterlangston.com/Papers/amc.pdf */ > > +static void schedule_riff_pattern(AtoneContext* s) > > +{ > > + int note_time, note_duration, tempo, rpb, energy, riff; > > + > > + note_time = s->time_marker; > > + tempo = 1; > > + > > + if (tempo > rand()%3) > > + tempo--; > > + else if(tempo < rand()%3) > > + tempo++; > > + tempo = tempo%3; > > + rpb = 1<<tempo; > > + note_duration = 4*s->beat_dur/(NPR*rpb); > > + energy = energy_calc((rand()%RAND_MAX)%s->numbars, s->numbars); > > + for(int r = 0; r < rpb; r++) > > + { > > + riff = pick_riff(s); > > + play_riff(riff, energy, note_duration, note_time, s); > > + > > + } > > + > > + play_percussion(s); > > + s->time_marker += 4*s->beat_dur; > > +} > > + > > +static void sequencer_callback(unsigned int time, fluid_event_t *event, > > fluid_sequencer_t *seq, void* data) > > +{ > > + schedule_timer_event(data); > > + schedule_riff_pattern(data); > > +} > > + > > +static int request_frame(AVFilterLink *outlink) > > +{ > > + AVFilterContext *ctx = outlink->src; > > + AtoneContext *s = ctx->priv; > > + AVFrame *frame; > > + int nb_samples; > > + > > + if (!s->infinite && s->duration <= 0) { > > + return AVERROR_EOF; > > + } else if (!s->infinite && s->duration < s->nb_samples) { > > + nb_samples = s->duration; > > + } else { > > + nb_samples = s->nb_samples; > > + } > > + > > + if (!(frame = ff_get_audio_buffer(outlink, nb_samples))) > > + return AVERROR(ENOMEM); > > + > > + if (s->framecount%((int)s->changerate) == 0){ > > + schedule_riff_pattern(s); > > + schedule_timer_event(s); > > + } > > + > > + fluid_synth_write_float(s->synth, nb_samples, frame->data[0], 0, 2, > > frame->data[0], 1, 2); > > + > > + if (!s->infinite) > > + s->duration -= nb_samples; > > + > > + s->framecount++; > > + frame->pts = s->pts; > > + s->pts += nb_samples; > > + return ff_filter_frame(outlink, frame); > > +} > > + > > +static av_cold int query_formats(AVFilterContext *ctx) > > +{ > > + AtoneContext *s = ctx->priv; > > + static const int64_t chlayouts[] = { AV_CH_LAYOUT_STEREO, -1 }; > > + int sample_rates[] = { s->sample_rate, -1 }; > > + static const enum AVSampleFormat sample_fmts[] = { > AV_SAMPLE_FMT_FLT, > > AV_SAMPLE_FMT_NONE}; > > + AVFilterFormats *formats; > > + AVFilterChannelLayouts *layouts; > > + int ret; > > + > > + formats = ff_make_format_list(sample_fmts); > > + if (!formats) > > + return AVERROR(ENOMEM); > > + ret = ff_set_common_formats (ctx, formats); > > + if (ret < 0) > > + return ret; > > + > > + layouts = avfilter_make_format64_list(chlayouts); > > + if (!layouts) > > + return AVERROR(ENOMEM); > > + ret = ff_set_common_channel_layouts(ctx, layouts); > > + if (ret < 0) > > + return ret; > > + > > + formats = ff_make_format_list(sample_rates); > > + if (!formats) > > + return AVERROR(ENOMEM); > > + return ff_set_common_samplerates(ctx, formats); > > +} > > + > > +static const AVFilterPad atone_outputs[] = { > > + { > > + .name = "default", > > + .type = AVMEDIA_TYPE_AUDIO, > > + .request_frame = request_frame, > > Change to activate API, so last PTS is correct. > See libavfilter/asrc_anoisesrc for more info. > will change > > > + .config_props = config_props, > > + }, > > + { NULL } > > +}; > > + > > +AVFilter ff_asrc_atone = { > > + .name = "atone", > > + .description = NULL_IF_CONFIG_SMALL("Generate algorithmic riff > > music."), > > + .query_formats = query_formats, > > + .init = init, > > + .uninit = uninit, > > + .priv_size = sizeof(AtoneContext), > > + .inputs = NULL, > > + .outputs = atone_outputs, > > + .priv_class = &atone_class, > > +}; > > + > > + > > + > > + > > diff --git a/libavfilter/notedef.h b/libavfilter/notedef.h > > new file mode 100644 > > index 0000000000..8534d6d827 > > --- /dev/null > > +++ b/libavfilter/notedef.h > > @@ -0,0 +1,257 @@ > > +/* > > + * This file is part of FFmpeg. > > + * > > + * FFmpeg is free software; you can redistribute it and/or > > + * modify it under the terms of the GNU Lesser General Public > > + * License as published by the Free Software Foundation; either > > + * version 2.1 of the License, or (at your option) any later version. > > + * > > + * FFmpeg is distributed in the hope that it will be useful, > > + * but WITHOUT ANY WARRANTY; without even the implied warranty of > > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > > + * Lesser General Public License for more details. > > + * > > + * You should have received a copy of the GNU Lesser General Public > > + * License along with FFmpeg; if not, write to the Free Software > > + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA > 02110-1301 > > USA > > + */ > > +#ifndef AVFILTER_NOTEDEF_H > > +#define AVFILTER_NOTEDEF_H > > +#include <stdlib.h> > > +#include<string.h> > > + > > +/*Define notes as per the General Midi specifications > > +*_ = minus, s = sharp, b = flat > > +* H = hold tone, R = Rest*/ > > +enum notes{C_1, Cs_1, Db_1 = 1, D_1, Ds_1, Eb_1 =3, E_1, F_1, Fs_1, > Gb_1 = > > 6, G_1, Gs_1, Ab_1 = 8, A_1, As_1, Bb_1 =10, B_1, > > + C0, Cs0, Db0 = 13, D0, Ds0, Eb0 = 15, E0, F0, Fs0, Gb0 = 18, > > G0, Gs0, Ab0 = 20, A0, As0, Bb0 = 22, B0, > > + C1, Cs1, Db1 = 25, D1, Ds1, Eb1 = 27, E1, F1, Fs1, Gb1 = 30, > > G1, Gs1, Ab1 = 32, A1, As1, Bb1 = 34, B1, > > + C2, Cs2, Db2 = 37, D2, Ds2, Eb2 = 39, E2, F2, Fs2, Gb2 = 42, > > G2, Gs2, Ab2 = 44, A2, As2, Bb2 = 46, B2, > > + C3, Cs3, Db3 = 49, D3, Ds3, Eb3 = 51, E3, F3, Fs3, Gb3 = 54, > > G3, Gs3, Ab3 = 56, A3, As3, Bb3 = 58, B3, > > + C4, Cs4, Db4 = 61, D4, Ds4, Eb4 = 63, E4, F4, Fs4, Gb4 = 66, > > G4, Gs4, Ab4 = 68, A4, As4, Bb4 = 70, B4, > > + C5, Cs5, Db5 = 73, D5, Ds5, Eb5 = 75, E5, F5, Fs5, Gb5 = 78, > > G5, Gs5, Ab5 = 80, A5, As5, Bb5 = 82, B5, > > + C6, Cs6, Db6 = 85, D6, Ds6, Eb6 = 87, E6, F6, Fs6, Gb6 = 90, > > G6, Gs6, Ab6 = 92, A6, As6, Bb6 = 94, B6, > > + C7, Cs7, Db7 = 97, D7, Ds7, Eb7 = 99, E7, F7, Fs7, Gb7 = > 102, > > G7, Gs7, Ab7 = 104, A7, As7, Bb7 = 106, B7, > > + C8, Cs8, Db8 = 109, D8, Ds8, Eb8 = 111, E8, F8, Fs8, Gb8 = > 114, > > G8, Gs8, Ab8 = 116, A8, As8, Bb8 = 118, B8, > > + C9, Cs9, Db9 = 121, D9, Ds9, Eb9 = 123, E9, F9, Fs9, Gb9 = > 126, > > G9, H, R}; > > + > > +const char *GM_instrument_list[128] = {"Acoustic-Grand", > "Bright-Acoustic", > > "Electric-Grand", "Honky-Tonk", "Electric-Piano-1", "Electric-Piano-2", > > +"Harpsichord", "Clav", "Celesta", "Glockenspiel", "Music-Box", > > "Vibraphone", "Marimba", "Xylophone", "Tubular-Bells", "Dulcimer", > > "Drawbar-Organ", > > +"Percussive-Organ", "Rock-Organ", "Church-Organ", "Reed-Organ", > > "Accordion", "Harmonica", "Tango-Accordion", "Acoustic-Guitar-nylon", > > "Acoustic-Guitar-steel", > > +"Electric-Guitar-jazz","Electric-Guitar-clean", "Electric-Guitar-muted", > > "Overdriven-Guitar", "Distortion-Guitar", "Guitar-Harmonics", > > +"Acoustic-Bass", "Electric-Bass-finger", "Electric-Bass-pick", > > "Fretless-Bass", "Slap-Bass-1", "Slap-Bass-2", "Synth-Bass-1", > > "Synth-Bass-2", > > + "Violin", "Viola", "Cello", "Contrabass", "Tremolo-Strings", > > "Pizzicato-Strings", "Orchestral-Harp", "Timpani", "String-Ensemble-1", > > "String-Ensemble-2", > > + "SynthStrings-1", "SynthStrings-2", "Choir-Aahs", "Voice-Oohs", > > "Synth-Voice", "Orchestra-Hit", "Trumpet", "Trombone", "Tuba", > > + "Muted-Trumpet", "French-Horn", "Brass-Section", "SynthBrass-1", > > "SynthBrass-2", "Soprano-Sax", "Alto-Sax", "Tenor-Sax", "Baritone-Sax", > > + "Oboe", "English-Horn", "Bassoon", "Clarinet", "Piccolo", "Flute", > > "Recorder", "Pan-Flute", "Blown-Bottle", "Shakuhachi", "Whistle", > "Ocarina", > > + "Lead-1-square", "Lead-2-sawtooth", "Lead-3-calliope", "Lead-4-chiff", > > "Lead-5-charang", "Lead-6-voice", "Lead-7-fifths", "Lead-8-bass+lead", > > + "Pad-1-new-age", "Pad-2-warm", "Pad-3-polysynth", "Pad-4-choir", > > "Pad-5-bowed", "Pad-6-metallic", "Pad-7-halo", "Pad-8-sweep", > > + "FX-1-rain", "FX-2-soundtrack", "FX-3-crystal", "FX-4-atmosphere", > > "FX-5-brightness", "FX-6-goblins", "FX-7-echoes", "FX-8-sci-fi", > > + "Sitar", "Banjo", "Shamisen", "Koto", "Kalimba", "Bagpipe", "Fiddle", > > "Shanai", "Tinkle-Bell", "Agogo", "Steel-Drums", "Woodblock", > "Taiko-Drum", > > + "Melodic-Tom", "Synth-Drum", "Reverse-Cymbal", "Guitar-Fret-Noise", > > "Breath-Noise", "Seashore", "Bird-Tweet", "Telephone-Ring", "Helicopter", > > + "Applause", "Gunshot"}; > > + > > +enum percussion_notes{Metronome_Click = 33, Metronome_Bell, > > Acoustic_Bass_Drum, Bass_Drum_1, Side_Stick, Acoustic_Snare, > Hand_Clap, > > Electric_Snare, Low_Floor_Tom, > > + Closed_Hi_Hat, High_Floor_Tom, Pedal_Hi_Hat, Low_Tom, Open_Hi_Hat, > > Low_Mid_Tom, Hi_Mid_Tom, Crash_Cymbal_1, High_Tom, Ride_Cymbal_1, > > Chinese_Cymbal, > > + Ride_Bell, Tambourine, Splash_Cymbal, Cowbell, Crash_Cymbal_2, > > Vibraslap, Ride_Cymbal_2, Hi_Bongo, Low_Bongo, Mute_Hi_Conga, > > Open_Hi_Conga, Low_Conga, > > + High_Timbale, Low_Timbale, High_Agogo, Low_Agogo, Cabasa, Maracas, > > Short_Whistle, Long_Whistle, Short_Guiro, Long_Guiro, Claves, > > Hi_Wood_Block, > > + Low_Wood_Block, Mute_Cuica, Open_Cuica, Mute_Triangle, > Open_Triangle}; > > + > > +/*Assuming maximum of three percussion instruments can be played at the > > same time*/ > > +typedef struct{ > > + unsigned int instrument_1; > > + unsigned int instrument_2; > > + unsigned int instrument_3; > > + unsigned int beat; > > +}percussion_structure; > > + > > +typedef struct > > +{ > > + unsigned int length; > > + percussion_structure note[]; > > +}percussion; > > + > > +/*Define some drum beats... > > +Beat: Whole note = 1, Half note = 2, Quater note = 4, ..., Number of > beats: > > Whole note = 4/1, Half note = 4/2, Quater note = 4/4 > > +Note 1 does not produce any sound*/ > > +#define jazz1 {12, {{Bass_Drum_1, Ride_Cymbal_2, 1, 12},\ > > + {1, 1, 1, 12}, \ > > + {Bass_Drum_1, 1, 1, 12}, \ > > + {Electric_Snare, Ride_Cymbal_2, Pedal_Hi_Hat, 12}, \ > > + {1, 1, 1, 12}, \ > > + {Electric_Snare, Ride_Cymbal_2, 1, 12}, \ > > + {Bass_Drum_1, Ride_Cymbal_2, 1, 12}, \ > > + {1, 1, 1, 12}, \ > > + {Bass_Drum_1, 1, 1, 12}, \ > > + {Electric_Snare, Ride_Cymbal_2, Pedal_Hi_Hat, 12}, \ > > + {1, 1, 1, 12}, \ > > + {Electric_Snare, Ride_Cymbal_2, 1, 12}}} > > +#define jazz2 {12, {{1, Ride_Cymbal_2, 1, 12}, \ > > + {1, 1, 1, 12}, \ > > + {Bass_Drum_1, 1, 1, 12}, \ > > + {Electric_Snare, Ride_Cymbal_2, Pedal_Hi_Hat, 12}, \ > > + {1, 1, 1, 12}, \ > > + {Bass_Drum_1, Ride_Cymbal_2, 1, 12}, \ > > + {1, Ride_Cymbal_2, 1, 12}, \ > > + {1, 1, 1, 12}, \ > > + {Bass_Drum_1, 1, 1, 12}, \ > > + {Electric_Snare, Ride_Cymbal_2, Pedal_Hi_Hat, 12}, \ > > + {1, 1, 1, 12}, \ > > + {Bass_Drum_1, Ride_Cymbal_2, 1, 12}}} > > +#define jazz3 {12, {{1, Ride_Cymbal_2, 1, 12},\ > > + {1, 1, 1, 12}, \ > > + {1, 1, 1, 12}, \ > > + {1, Ride_Cymbal_2, Pedal_Hi_Hat, 12}, \ > > + {1, 1, 1, 12}, \ > > + {1, Ride_Cymbal_2, 1, 12}, \ > > + {1, Ride_Cymbal_2, 1, 12}, \ > > + {Electric_Snare, 1, 1, 12}, \ > > + {Electric_Snare, 1, 1, 12}, \ > > + {1, Ride_Cymbal_2, Pedal_Hi_Hat, 12}, \ > > + {1, 1, 1, 12}, \ > > + {1, Ride_Cymbal_2, 1, 12}}} > > +#define jazz4 {12, {{1, Ride_Cymbal_2, 1, 12}, \ > > + {Electric_Snare, 1, 1, 12}, \ > > + {Electric_Snare, 1, 1, 12}, \ > > + {1, Ride_Cymbal_2, Pedal_Hi_Hat, 12}, \ > > + {1, 1, 1, 12}, \ > > + {1, Ride_Cymbal_2, 1, 12}, \ > > + {1, Ride_Cymbal_2, 1, 12}, \ > > + {Electric_Snare, 1, 1, 12}, \ > > + {Electric_Snare, 1, 1, 12}, \ > > + {1, Ride_Cymbal_2, Pedal_Hi_Hat, 12}, \ > > + {1, 1, 1, 12}, \ > > + {1, Ride_Cymbal_2, 1, 12}}} > > +#define jazz5 {12, {{Electric_Snare, Ride_Cymbal_2, 1, 12}, \ > > + {Electric_Snare, 1, 1, 12}, \ > > + {Bass_Drum_1, 1, 1, 12}, \ > > + {1, Ride_Cymbal_2, Pedal_Hi_Hat, 12}, \ > > + {1, 1, 1, 12}, \ > > + {1, Ride_Cymbal_2, 1, 12}, \ > > + {Electric_Snare, Ride_Cymbal_2, 1, 12}, \ > > + {Electric_Snare, 1, 1, 12}, \ > > + {Bass_Drum_1, 1, 1, 12}, \ > > + {1, Ride_Cymbal_2, Pedal_Hi_Hat, 12}, \ > > + {1, 1, 1, 12}, \ > > + {1, Ride_Cymbal_2, 1, 12}}} > > +#define jazz6 {12, {{1, Ride_Cymbal_2, 1, 12}, \ > > + {1, 1, 1, 12}, \ > > + {Electric_Snare, 1, 1, 12}, \ > > + {1, Ride_Cymbal_2, Pedal_Hi_Hat, 12}, \ > > + {Electric_Snare, 1, 1, 12}, \ > > + {Electric_Snare, Ride_Cymbal_2, 1, 12}, \ > > + {1, Ride_Cymbal_2, 1, 12}, \ > > + {1, 1, 1, 12}, \ > > + {Bass_Drum_1, 1, 1, 12}, \ > > + {Electric_Snare, Ride_Cymbal_2, Pedal_Hi_Hat, 12}, \ > > + {1, 1, 1, 12}, \ > > + {1, Ride_Cymbal_2, 1, 12}}} > > +#define rock1 {8, {{Bass_Drum_1, 1, Closed_Hi_Hat, 8}, \ > > + {1, 1, Closed_Hi_Hat, 8}, \ > > + {Acoustic_Snare, 1, Closed_Hi_Hat, 8}, \ > > + {1, 1, Closed_Hi_Hat, 8}, \ > > + {Bass_Drum_1, 1, Closed_Hi_Hat, 8}, \ > > + {Bass_Drum_1, 1, Closed_Hi_Hat, 8}, \ > > + {Acoustic_Snare, 1, Closed_Hi_Hat, 8}, \ > > + {1, 1, Closed_Hi_Hat, 8}}} > > +#define rock2 {8, {{Bass_Drum_1, 1, Closed_Hi_Hat, 8}, \ > > + {Bass_Drum_1, 1, Closed_Hi_Hat, 8}, \ > > + {Acoustic_Snare, 1, Closed_Hi_Hat, 8}, \ > > + {Bass_Drum_1, 1, Closed_Hi_Hat, 8}, \ > > + {Bass_Drum_1, 1, Closed_Hi_Hat, 8}, \ > > + {1, 1, Closed_Hi_Hat, 8}, \ > > + {Bass_Drum_1, 1, Closed_Hi_Hat, 8}, \ > > + {1, 1, Closed_Hi_Hat, 8}}} > > +#define rock3 {8, {{Bass_Drum_1, 1, Closed_Hi_Hat, 8}, \ > > + {Bass_Drum_1, 1, Closed_Hi_Hat, 8}, \ > > + {Acoustic_Snare, 1, Closed_Hi_Hat, 8}, \ > > + {Bass_Drum_1, 1, Closed_Hi_Hat, 8}, \ > > + {1, 1, Closed_Hi_Hat, 8}, \ > > + {Bass_Drum_1, 1, Closed_Hi_Hat, 8}, \ > > + {Acoustic_Snare, 1, Closed_Hi_Hat, 8}, \ > > + {1, 1, Closed_Hi_Hat, 8}}} > > +#define rock4 {8, {{Bass_Drum_1, Acoustic_Snare, Closed_Hi_Hat, 8}, \ > > + {1, 1, Closed_Hi_Hat, 8}, \ > > + {Bass_Drum_1, Acoustic_Snare, Closed_Hi_Hat, 8}, \ > > + {1, 1, Closed_Hi_Hat, 8}, \ > > + {1, Acoustic_Snare, Closed_Hi_Hat, 8}, \ > > + {Bass_Drum_1, 1, Closed_Hi_Hat, 8}, \ > > + {1, Acoustic_Snare, Closed_Hi_Hat, 8}, \ > > + {Bass_Drum_1, 1, Closed_Hi_Hat, 8}}} > > +#define shuffle {12, {{Bass_Drum_1, 1, Closed_Hi_Hat, 12}, \ > > + {1, 1, 1, 12}, \ > > + {1, 1, Closed_Hi_Hat, 12}, \ > > + {Acoustic_Snare, 1, Closed_Hi_Hat, 12}, \ > > + {1, 1, 1, 12}, \ > > + {1, 1, Closed_Hi_Hat, 12}, \ > > + {Bass_Drum_1, 1, Closed_Hi_Hat, 12}, \ > > + {1, 1, 1, 12}, \ > > + {1, 1, Closed_Hi_Hat, 12}, \ > > + {Acoustic_Snare, 1, Closed_Hi_Hat, 12}, \ > > + {1, 1, 1, 12}, \ > > + {1, 1, Closed_Hi_Hat, 12}}} > > +#define metronome {4, {{Metronome_Click, 1, 1, 4}, \ > > + {Metronome_Click, 1, 1, 4}, \ > > + {Metronome_Click, 1, 1, 4}, \ > > + {Metronome_Click, 1, 1, 4}}} > > + > > +const percussion Track_1 = jazz1; > > +const percussion Track_2 = jazz2; > > +const percussion Track_3 = jazz3; > > +const percussion Track_4 = jazz4; > > +const percussion Track_5 = jazz5; > > +const percussion Track_6 = jazz6; > > +const percussion Track_7 = rock1; > > +const percussion Track_8 = rock2; > > +const percussion Track_9 = rock3; > > +const percussion Track_10 = rock4; > > +const percussion Track_11 = shuffle; > > +const percussion Track_12 = metronome; > > + > > +const char *percussion_tracks[] = {"Jazz1", "Jazz2", "Jazz3", "Jazz4", > > "Jazz5", "Jazz6", "Rock1", "Rock2", "Rock3", "Rock4", "Shuffle", > > "Metronome"}; > > + > > +/*Define the riffs : 8 notes per riff > > +Refernce: http://peterlangston.com/Papers/amc.pdf */ > > +#define NPR 8 > > +const int riff[] = {Eb4, D4, A4, F4, E4, C5, A4, A4, /* 0 */ > > + F4, A4, Eb5, D5, E4, A4, C5, A4, /* 1 */ > > + Ab4, A4, H, G5, H, Eb5, C5, E5, /* 2 */ > > + Ab4, A4, B4, C5, Eb5, E5, Ab5, A5, /* 3 */ > > + A4, Bb4, B4, C5, Db5, D5, Eb5, E5, /* 4 */ > > + A4, Bb4, B4, C5, E5, Eb5, D5, C5, /* 5 */ > > + A4, B4, C5, A4, B4, C5, D5, B4, /* 6 */ > > + A4, B4, C5, D5, Eb5, E5, Eb5, C5, /* 7 */ > > + A4, C5, D5, Eb5, Gb5, Ab5, A5, C6, /* 8 Pat > > Metheny */ > > + A4, C5, Eb5, B4, D5, F5, Eb5, C5, /* 9 */ > > + A4, C5, E5, G5, B5, A5, G5, E5, /* 10 */ > > + A4, C5, E5, A5, G5, Eb5, C5, A4, /* 11 */ > > + B4, A4, B4, C5, B4, A4, B4, C5, /* 12 */ > > + B4, A4, B4, C5, B4, C5, B4, A4, /* 13 */ > > + B4, A4, B4, C5, D5, C5, D5, Eb5, /* 14 */ > > + C5, Ab4, A4, G5, F5, Gb5, Eb5, E5, /* 15 Marty > Cutler > > */ > > + C5, D5, C5, B4, C5, B4, A4, H, /* 16 */ > > + C5, D5, Eb5, C5, D5, Eb5, F5, D5, /* 17 */ > > + D5, C5, A4, C5, E5, Eb5, D5, C5, /* 18 */ > > + D5, C5, D5, Eb5, D5, C5, D5, Eb5, /* 19 */ > > + D5, Eb5, E5, F5, Gb5, G5, Ab5, A5, /* 20 */ > > + D5, Eb5, G5, Eb5, D5, C5, B4, C5, /* 21 Charlie > > Keagle */ > > + D5, Eb5, A5, D5, H, C5, A4, E4, /* 22 */ > > + D5, E5, G5, E5, C5, H, D5, A5, /* 23 Lyle > > Mays/Steve Cantor */ > > + Eb5, D5, Eb5, D5, H, C5, A4, H, /* 24 */ > > + Eb5, D5, Eb5, F5, Eb5, D5, C5, B4, /* 25 */ > > + Eb5, E5, D5, C5, B4, A4, Ab4, A4, /* 26 Richie > > Shulberg */ > > + Eb5, E5, A5, C5, B4, E5, A4, A4, /* 27 */ > > + Eb5, Gb5, E5, A4, B4, D5, C5, E4, /* 28 Django > > Rheinhart */ > > + E5, A4, C5, Ab4, B4, G4, Gb4, E4, /* 29 David > > Levine */ > > + E5, Eb5, D5, C5, B4, C5, D5, F5, /* 30 */ > > + G5, E5, D5, B4, Eb5, H, C5, A4, /* 31 */ > > + G5, E5, D5, Gb5, C5, H, A4, H, /* 32 Mike > Cross > > */ > > + Ab5, A5, Ab5, A5, Ab5, A5, Ab5, A5, /* 33 Django > > Rheinhart */ > > + A5, E5, C5, G4, C5, E5, A5, A5, /* 34 Django > > Rheinhart */ > > + A5, E5, C5, A4, G5, Eb5, C5, A4, /* 35 */ > > + A5, B5, G5, E5, F5, Gb5, G5, Ab5, /* 36 */ > > + B5, C6, A5, E5, G5, B5, A5, H, /* 37 */ > > + B5, D6, C6, E5, Ab5, B5, A5, C5, // 38 Django > > Rheinhart > > + C6, B5, A5, G5, Gb5, E5, Eb5, C5} ;/* 39 */ > > +#endif/*AVFILTER_NOTEDEF_H*/ > > + > > diff --git a/libavfilter/version.h b/libavfilter/version.h > > index 980d9baca3..96b14d6794 100644 > > --- a/libavfilter/version.h > > +++ b/libavfilter/version.h > > @@ -30,7 +30,7 @@ > > #include "libavutil/version.h" > > > > #define LIBAVFILTER_VERSION_MAJOR 7 > > -#define LIBAVFILTER_VERSION_MINOR 84 > > +#define LIBAVFILTER_VERSION_MINOR 85 > > #define LIBAVFILTER_VERSION_MICRO 100 > > > > > > _______________________________________________ > > ffmpeg-devel mailing list > > ffmpeg-devel@ffmpeg.org > > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel > > > > To unsubscribe, visit link above, or email > > ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe". > _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email 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