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FFmpeg/libavfilter/avf_abitscope.c
Andreas Rheinhardt 790f793844 avutil/common: Don't auto-include mem.h 
There are lots of files that don't need it: The number of object
files that actually need it went down from 2011 to 884 here.

Keep it for external users in order to not cause breakages.

Also improve the other headers a bit while just at it.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2024-03-31 00:08:43 +01:00

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/*
* Copyright (c) 2016 Paul B Mahol
*
* 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 "libavutil/avstring.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "libavutil/parseutils.h"
#include "avfilter.h"
#include "filters.h"
#include "formats.h"
#include "audio.h"
#include "video.h"
#include "internal.h"
typedef struct AudioBitScopeContext {
const AVClass *class;
int w, h;
AVRational frame_rate;
char *colors;
int mode;
int nb_channels;
int nb_samples;
int depth;
int current_vpos;
uint8_t *fg;
uint64_t counter[64];
AVFrame *outpicref;
} AudioBitScopeContext;
#define OFFSET(x) offsetof(AudioBitScopeContext, x)
#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
static const AVOption abitscope_options[] = {
{ "rate", "set video rate", OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str="25"}, 0, INT_MAX, FLAGS },
{ "r", "set video rate", OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str="25"}, 0, INT_MAX, FLAGS },
{ "size", "set video size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str="1024x256"}, 0, 0, FLAGS },
{ "s", "set video size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str="1024x256"}, 0, 0, FLAGS },
{ "colors", "set channels colors", OFFSET(colors), AV_OPT_TYPE_STRING, {.str = "red|green|blue|yellow|orange|lime|pink|magenta|brown" }, 0, 0, FLAGS },
{ "mode", "set output mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, 1, FLAGS, .unit = "mode" },
{ "m", "set output mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, 1, FLAGS, .unit = "mode" },
{ "bars", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 0 }, 0, 0, FLAGS, .unit = "mode" },
{ "trace", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 1 }, 0, 0, FLAGS, .unit = "mode" },
{ NULL }
};
AVFILTER_DEFINE_CLASS(abitscope);
static int query_formats(AVFilterContext *ctx)
{
AVFilterFormats *formats = NULL;
AVFilterChannelLayouts *layouts;
AVFilterLink *inlink = ctx->inputs[0];
AVFilterLink *outlink = ctx->outputs[0];
static const enum AVSampleFormat sample_fmts[] = { AV_SAMPLE_FMT_S16P, AV_SAMPLE_FMT_S32P,
AV_SAMPLE_FMT_U8P, AV_SAMPLE_FMT_S64P,
AV_SAMPLE_FMT_FLTP, AV_SAMPLE_FMT_DBLP,
AV_SAMPLE_FMT_NONE };
static const enum AVPixelFormat pix_fmts[] = { AV_PIX_FMT_RGBA, AV_PIX_FMT_NONE };
int ret;
formats = ff_make_format_list(sample_fmts);
if ((ret = ff_formats_ref(formats, &inlink->outcfg.formats)) < 0)
return ret;
layouts = ff_all_channel_counts();
if (!layouts)
return AVERROR(ENOMEM);
if ((ret = ff_channel_layouts_ref(layouts, &inlink->outcfg.channel_layouts)) < 0)
return ret;
formats = ff_all_samplerates();
if ((ret = ff_formats_ref(formats, &inlink->outcfg.samplerates)) < 0)
return ret;
formats = ff_make_format_list(pix_fmts);
if ((ret = ff_formats_ref(formats, &outlink->incfg.formats)) < 0)
return ret;
return 0;
}
static int config_input(AVFilterLink *inlink)
{
AVFilterContext *ctx = inlink->dst;
AudioBitScopeContext *s = ctx->priv;
int ch;
char *colors, *saveptr = NULL;
s->nb_samples = FFMAX(1, av_rescale(inlink->sample_rate, s->frame_rate.den, s->frame_rate.num));
s->nb_channels = inlink->ch_layout.nb_channels;
s->depth = inlink->format == AV_SAMPLE_FMT_S16P ? 16 : 32;
s->fg = av_malloc_array(s->nb_channels, 4 * sizeof(*s->fg));
if (!s->fg)
return AVERROR(ENOMEM);
colors = av_strdup(s->colors);
if (!colors)
return AVERROR(ENOMEM);
for (ch = 0; ch < s->nb_channels; ch++) {
uint8_t fg[4] = { 0xff, 0xff, 0xff, 0xff };
char *color;
color = av_strtok(ch == 0 ? colors : NULL, " |", &saveptr);
if (color)
av_parse_color(fg, color, -1, ctx);
s->fg[4 * ch + 0] = fg[0];
s->fg[4 * ch + 1] = fg[1];
s->fg[4 * ch + 2] = fg[2];
s->fg[4 * ch + 3] = fg[3];
}
av_free(colors);
return 0;
}
static int config_output(AVFilterLink *outlink)
{
AudioBitScopeContext *s = outlink->src->priv;
outlink->w = s->w;
outlink->h = s->h;
outlink->sample_aspect_ratio = (AVRational){1,1};
outlink->frame_rate = s->frame_rate;
outlink->time_base = av_inv_q(outlink->frame_rate);
return 0;
}
#define BITCOUNTER(type, depth, one) \
memset(counter, 0, sizeof(s->counter)); \
for (int i = 0; i < nb_samples; i++) { \
const type x = in[i]; \
for (int j = 0; j < depth && x; j++) \
counter[j] += !!(x & (one << j)); \
}
#define BARS(type, depth, one) \
for (int ch = 0; ch < inlink->ch_layout.nb_channels; ch++) { \
const int nb_samples = insamples->nb_samples; \
const type *in = (const type *)insamples->extended_data[ch]; \
const int w = outpicref->width / inlink->ch_layout.nb_channels; \
const int h = outpicref->height / depth; \
const uint32_t color = AV_RN32(&s->fg[4 * ch]); \
uint64_t *counter = s->counter; \
\
BITCOUNTER(type, depth, one) \
\
for (int b = 0; b < depth; b++) { \
for (int j = 1; j < h - 1; j++) { \
uint8_t *dst = outpicref->data[0] + (b * h + j) * outpicref->linesize[0] + w * ch * 4; \
const int ww = (counter[depth - b - 1] / (float)nb_samples) * (w - 1); \
\
for (int i = 0; i < ww; i++) { \
AV_WN32(&dst[i * 4], color); \
} \
} \
} \
}
#define DO_TRACE(type, depth, one) \
for (int ch = 0; ch < inlink->ch_layout.nb_channels; ch++) { \
const int nb_samples = insamples->nb_samples; \
const int w = outpicref->width / inlink->ch_layout.nb_channels; \
const type *in = (const type *)insamples->extended_data[ch]; \
uint64_t *counter = s->counter; \
const int wb = w / depth; \
int wv; \
\
BITCOUNTER(type, depth, one) \
\
for (int b = 0; b < depth; b++) { \
uint8_t colors[4]; \
uint32_t color; \
uint8_t *dst = outpicref->data[0] + w * ch * 4 + wb * b * 4 + \
s->current_vpos * outpicref->linesize[0]; \
wv = (counter[depth - b - 1] * 255) / nb_samples; \
colors[0] = (wv * s->fg[ch * 4 + 0] + 127) / 255; \
colors[1] = (wv * s->fg[ch * 4 + 1] + 127) / 255; \
colors[2] = (wv * s->fg[ch * 4 + 2] + 127) / 255; \
colors[3] = (wv * s->fg[ch * 4 + 3] + 127) / 255; \
color = AV_RN32(colors); \
\
for (int x = 0; x < wb; x++) \
AV_WN32(&dst[x * 4], color); \
} \
}
static int filter_frame(AVFilterLink *inlink, AVFrame *insamples)
{
AVFilterContext *ctx = inlink->dst;
AVFilterLink *outlink = ctx->outputs[0];
AudioBitScopeContext *s = ctx->priv;
AVFrame *outpicref;
int ret;
if (s->mode == 0 || !s->outpicref) {
outpicref = ff_get_video_buffer(outlink, outlink->w, outlink->h);
if (!outpicref) {
av_frame_free(&insamples);
return AVERROR(ENOMEM);
}
for (int i = 0; i < outlink->h; i++)
memset(outpicref->data[0] + i * outpicref->linesize[0], 0, outlink->w * 4);
if (!s->outpicref && s->mode == 1)
s->outpicref = outpicref;
}
if (s->mode == 1) {
ret = ff_inlink_make_frame_writable(outlink, &s->outpicref);
if (ret < 0) {
av_frame_free(&insamples);
return ret;
}
outpicref = av_frame_clone(s->outpicref);
if (!outpicref) {
av_frame_free(&insamples);
return AVERROR(ENOMEM);
}
}
outpicref->pts = av_rescale_q(insamples->pts, inlink->time_base, outlink->time_base);
outpicref->duration = 1;
outpicref->sample_aspect_ratio = (AVRational){1,1};
switch (insamples->format) {
case AV_SAMPLE_FMT_U8P:
if (s->mode == 0) { BARS(uint8_t, 8, 1) } else { DO_TRACE(uint8_t, 8, 1) }
break;
case AV_SAMPLE_FMT_S16P:
if (s->mode == 0) { BARS(uint16_t, 16, 1) } else { DO_TRACE(uint16_t, 16, 1) }
break;
case AV_SAMPLE_FMT_FLTP:
case AV_SAMPLE_FMT_S32P:
if (s->mode == 0) { BARS(uint32_t, 32, 1U) } else { DO_TRACE(uint32_t, 32, 1U) }
break;
case AV_SAMPLE_FMT_DBLP:
case AV_SAMPLE_FMT_S64P:
if (s->mode == 0) { BARS(uint64_t, 64, 1ULL) } else { DO_TRACE(uint64_t, 64, 1ULL) }
break;
}
s->current_vpos++;
if (s->current_vpos >= outlink->h)
s->current_vpos = 0;
av_frame_free(&insamples);
return ff_filter_frame(outlink, outpicref);
}
static int activate(AVFilterContext *ctx)
{
AVFilterLink *inlink = ctx->inputs[0];
AVFilterLink *outlink = ctx->outputs[0];
AudioBitScopeContext *s = ctx->priv;
AVFrame *in;
int ret;
FF_FILTER_FORWARD_STATUS_BACK(outlink, inlink);
ret = ff_inlink_consume_samples(inlink, s->nb_samples, s->nb_samples, &in);
if (ret < 0)
return ret;
if (ret > 0)
return filter_frame(inlink, in);
FF_FILTER_FORWARD_STATUS(inlink, outlink);
FF_FILTER_FORWARD_WANTED(outlink, inlink);
return FFERROR_NOT_READY;
}
static av_cold void uninit(AVFilterContext *ctx)
{
AudioBitScopeContext *s = ctx->priv;
av_frame_free(&s->outpicref);
}
static const AVFilterPad inputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_AUDIO,
.config_props = config_input,
},
};
static const AVFilterPad outputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.config_props = config_output,
},
};
const AVFilter ff_avf_abitscope = {
.name = "abitscope",
.description = NULL_IF_CONFIG_SMALL("Convert input audio to audio bit scope video output."),
.priv_size = sizeof(AudioBitScopeContext),
FILTER_INPUTS(inputs),
FILTER_OUTPUTS(outputs),
FILTER_QUERY_FUNC(query_formats),
.uninit = uninit,
.activate = activate,
.priv_class = &abitscope_class,
};
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