int nb_inputs;
int duration;
float *weights;
+ float scale;
float wfactor;
+ int tmix;
+ int nb_frames;
+
int depth;
+ int max;
int nb_planes;
int linesize[4];
int height[4];
static int query_formats(AVFilterContext *ctx)
{
- AVFilterFormats *pix_fmts = NULL;
- int fmt, ret;
-
- for (fmt = 0; av_pix_fmt_desc_get(fmt); fmt++) {
- const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(fmt);
- if (!(desc->flags & AV_PIX_FMT_FLAG_PAL ||
- desc->flags & AV_PIX_FMT_FLAG_HWACCEL ||
- desc->flags & AV_PIX_FMT_FLAG_BITSTREAM) &&
- (ret = ff_add_format(&pix_fmts, fmt)) < 0)
- return ret;
+ AVFilterFormats *formats = NULL;
+ int ret;
+
+ ret = ff_formats_pixdesc_filter(&formats, 0,
+ AV_PIX_FMT_FLAG_BITSTREAM |
+ AV_PIX_FMT_FLAG_PAL |
+ AV_PIX_FMT_FLAG_HWACCEL);
+ if (ret < 0)
+ return ret;
+ return ff_set_common_formats(ctx, formats);
+}
+
+static int parse_weights(AVFilterContext *ctx)
+{
+ MixContext *s = ctx->priv;
+ char *p, *arg, *saveptr = NULL;
+ int i, last = 0;
+
+ s->wfactor = 0.f;
+ p = s->weights_str;
+ for (i = 0; i < s->nb_inputs; i++) {
+ if (!(arg = av_strtok(p, " |", &saveptr)))
+ break;
+
+ p = NULL;
+ if (av_sscanf(arg, "%f", &s->weights[i]) != 1) {
+ av_log(ctx, AV_LOG_ERROR, "Invalid syntax for weights[%d].\n", i);
+ return AVERROR(EINVAL);
+ }
+ s->wfactor += s->weights[i];
+ last = i;
+ }
+
+ for (; i < s->nb_inputs; i++) {
+ s->weights[i] = s->weights[last];
+ s->wfactor += s->weights[i];
+ }
+ if (s->scale == 0) {
+ s->wfactor = 1 / s->wfactor;
+ } else {
+ s->wfactor = s->scale;
}
- return ff_set_common_formats(ctx, pix_fmts);
+ return 0;
}
static av_cold int init(AVFilterContext *ctx)
{
MixContext *s = ctx->priv;
- char *p, *arg, *saveptr = NULL;
- int i, ret;
+ int ret;
+
+ s->tmix = !strcmp(ctx->filter->name, "tmix");
s->frames = av_calloc(s->nb_inputs, sizeof(*s->frames));
if (!s->frames)
if (!s->weights)
return AVERROR(ENOMEM);
- for (i = 0; i < s->nb_inputs; i++) {
- AVFilterPad pad = { 0 };
+ if (!s->tmix) {
+ for (int i = 0; i < s->nb_inputs; i++) {
+ AVFilterPad pad = { 0 };
- pad.type = AVMEDIA_TYPE_VIDEO;
- pad.name = av_asprintf("input%d", i);
- if (!pad.name)
- return AVERROR(ENOMEM);
+ pad.type = AVMEDIA_TYPE_VIDEO;
+ pad.name = av_asprintf("input%d", i);
+ if (!pad.name)
+ return AVERROR(ENOMEM);
- if ((ret = ff_insert_inpad(ctx, i, &pad)) < 0) {
- av_freep(&pad.name);
- return ret;
+ if ((ret = ff_insert_inpad(ctx, i, &pad)) < 0) {
+ av_freep(&pad.name);
+ return ret;
+ }
}
}
- p = s->weights_str;
- for (i = 0; i < s->nb_inputs; i++) {
- if (!(arg = av_strtok(p, " ", &saveptr)))
- break;
-
- p = NULL;
- sscanf(arg, "%f", &s->weights[i]);
- s->wfactor += s->weights[i];
- }
- s->wfactor = 1 / s->wfactor;
-
- return 0;
+ return parse_weights(ctx);
}
-static int process_frame(FFFrameSync *fs)
-{
- AVFilterContext *ctx = fs->parent;
- AVFilterLink *outlink = ctx->outputs[0];
- MixContext *s = fs->opaque;
- AVFrame **in = s->frames;
- AVFrame *out;
- int i, p, ret, x, y;
+typedef struct ThreadData {
+ AVFrame **in, *out;
+} ThreadData;
- for (i = 0; i < s->nb_inputs; i++) {
- if ((ret = ff_framesync_get_frame(&s->fs, i, &in[i], 0)) < 0)
- return ret;
- }
-
- out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
- if (!out)
- return AVERROR(ENOMEM);
- out->pts = av_rescale_q(s->fs.pts, s->fs.time_base, outlink->time_base);
+static int mix_frames(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
+{
+ MixContext *s = ctx->priv;
+ ThreadData *td = arg;
+ AVFrame **in = td->in;
+ AVFrame *out = td->out;
+ int i, p, x, y;
if (s->depth <= 8) {
for (p = 0; p < s->nb_planes; p++) {
- uint8_t *dst = out->data[p];
+ const int slice_start = (s->height[p] * jobnr) / nb_jobs;
+ const int slice_end = (s->height[p] * (jobnr+1)) / nb_jobs;
+ uint8_t *dst = out->data[p] + slice_start * out->linesize[p];
- for (y = 0; y < s->height[p]; y++) {
+ for (y = slice_start; y < slice_end; y++) {
for (x = 0; x < s->linesize[p]; x++) {
int val = 0;
for (i = 0; i < s->nb_inputs; i++) {
- uint8_t src = in[i]->data[p][y * s->linesize[p] + x];
+ uint8_t src = in[i]->data[p][y * in[i]->linesize[p] + x];
val += src * s->weights[i];
}
- dst[x] = val * s->wfactor;
+ dst[x] = av_clip_uint8(val * s->wfactor);
}
dst += out->linesize[p];
}
} else {
for (p = 0; p < s->nb_planes; p++) {
- uint16_t *dst = (uint16_t *)out->data[p];
+ const int slice_start = (s->height[p] * jobnr) / nb_jobs;
+ const int slice_end = (s->height[p] * (jobnr+1)) / nb_jobs;
+ uint16_t *dst = (uint16_t *)(out->data[p] + slice_start * out->linesize[p]);
- for (y = 0; y < s->height[p]; y++) {
- for (x = 0; x < s->linesize[p]; x++) {
+ for (y = slice_start; y < slice_end; y++) {
+ for (x = 0; x < s->linesize[p] / 2; x++) {
int val = 0;
for (i = 0; i < s->nb_inputs; i++) {
- uint16_t src = AV_RN16(in[i]->data[p] + y * s->linesize[p] + x * 2);
+ uint16_t src = AV_RN16(in[i]->data[p] + y * in[i]->linesize[p] + x * 2);
val += src * s->weights[i];
}
- dst[x] = val * s->wfactor;
+ dst[x] = av_clip(val * s->wfactor, 0, s->max);
}
dst += out->linesize[p] / 2;
}
}
+ return 0;
+}
+
+static int process_frame(FFFrameSync *fs)
+{
+ AVFilterContext *ctx = fs->parent;
+ AVFilterLink *outlink = ctx->outputs[0];
+ MixContext *s = fs->opaque;
+ AVFrame **in = s->frames;
+ AVFrame *out;
+ ThreadData td;
+ int i, ret;
+
+ for (i = 0; i < s->nb_inputs; i++) {
+ if ((ret = ff_framesync_get_frame(&s->fs, i, &in[i], 0)) < 0)
+ return ret;
+ }
+
+ if (ctx->is_disabled) {
+ out = av_frame_clone(s->frames[0]);
+ if (!out)
+ return AVERROR(ENOMEM);
+ out->pts = av_rescale_q(s->fs.pts, s->fs.time_base, outlink->time_base);
+ return ff_filter_frame(outlink, out);
+ }
+
+ out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
+ if (!out)
+ return AVERROR(ENOMEM);
+ out->pts = av_rescale_q(s->fs.pts, s->fs.time_base, outlink->time_base);
+
+ td.in = in;
+ td.out = out;
+ ctx->internal->execute(ctx, mix_frames, &td, NULL, FFMIN(s->height[0], ff_filter_get_nb_threads(ctx)));
+
return ff_filter_frame(outlink, out);
}
{
AVFilterContext *ctx = outlink->src;
MixContext *s = ctx->priv;
- AVRational time_base = ctx->inputs[0]->time_base;
AVRational frame_rate = ctx->inputs[0]->frame_rate;
+ AVRational sar = ctx->inputs[0]->sample_aspect_ratio;
AVFilterLink *inlink = ctx->inputs[0];
int height = ctx->inputs[0]->h;
int width = ctx->inputs[0]->w;
FFFrameSyncIn *in;
int i, ret;
- for (i = 1; i < s->nb_inputs; i++) {
- if (ctx->inputs[i]->h != height || ctx->inputs[i]->w != width) {
- av_log(ctx, AV_LOG_ERROR, "Input %d size (%dx%d) does not match input %d size (%dx%d).\n", i, ctx->inputs[i]->w, ctx->inputs[i]->h, 0, width, height);
- return AVERROR(EINVAL);
+ if (!s->tmix) {
+ for (i = 1; i < s->nb_inputs; i++) {
+ if (ctx->inputs[i]->h != height || ctx->inputs[i]->w != width) {
+ av_log(ctx, AV_LOG_ERROR, "Input %d size (%dx%d) does not match input %d size (%dx%d).\n", i, ctx->inputs[i]->w, ctx->inputs[i]->h, 0, width, height);
+ return AVERROR(EINVAL);
+ }
}
}
return AVERROR_BUG;
s->nb_planes = av_pix_fmt_count_planes(outlink->format);
s->depth = s->desc->comp[0].depth;
+ s->max = (1 << s->depth) - 1;
+
+ if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0)
+ return ret;
+
+ s->height[1] = s->height[2] = AV_CEIL_RSHIFT(inlink->h, s->desc->log2_chroma_h);
+ s->height[0] = s->height[3] = inlink->h;
+
+ if (s->tmix)
+ return 0;
outlink->w = width;
outlink->h = height;
- outlink->time_base = time_base;
outlink->frame_rate = frame_rate;
+ outlink->sample_aspect_ratio = sar;
if ((ret = ff_framesync_init(&s->fs, ctx, s->nb_inputs)) < 0)
return ret;
s->fs.opaque = s;
s->fs.on_event = process_frame;
- if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0)
- return ret;
-
- s->height[1] = s->height[2] = AV_CEIL_RSHIFT(inlink->h, s->desc->log2_chroma_h);
- s->height[0] = s->height[3] = inlink->h;
-
for (i = 0; i < s->nb_inputs; i++) {
AVFilterLink *inlink = ctx->inputs[i];
in[i].after = (s->duration == 1 || (s->duration == 2 && i == 0)) ? EXT_STOP : EXT_INFINITY;
}
- return ff_framesync_configure(&s->fs);
+ ret = ff_framesync_configure(&s->fs);
+ outlink->time_base = s->fs.time_base;
+
+ return ret;
}
static av_cold void uninit(AVFilterContext *ctx)
int i;
ff_framesync_uninit(&s->fs);
- av_freep(&s->frames);
av_freep(&s->weights);
- for (i = 0; i < ctx->nb_inputs; i++)
- av_freep(&ctx->input_pads[i].name);
+ if (!s->tmix) {
+ for (i = 0; i < ctx->nb_inputs; i++)
+ av_freep(&ctx->input_pads[i].name);
+ } else {
+ for (i = 0; i < s->nb_frames && s->frames; i++)
+ av_frame_free(&s->frames[i]);
+ }
+ av_freep(&s->frames);
+}
+
+static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
+ char *res, int res_len, int flags)
+{
+ int ret;
+
+ ret = ff_filter_process_command(ctx, cmd, args, res, res_len, flags);
+ if (ret < 0)
+ return ret;
+
+ return parse_weights(ctx);
}
static int activate(AVFilterContext *ctx)
#define OFFSET(x) offsetof(MixContext, x)
#define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM
+#define TFLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_RUNTIME_PARAM
static const AVOption mix_options[] = {
- { "inputs", "set number of inputs", OFFSET(nb_inputs), AV_OPT_TYPE_INT, {.i64=2}, 2, INT_MAX, .flags = FLAGS },
- { "weights", "set weight for each input", OFFSET(weights_str), AV_OPT_TYPE_STRING, {.str="1 1"}, 0, 0, .flags = FLAGS },
+ { "inputs", "set number of inputs", OFFSET(nb_inputs), AV_OPT_TYPE_INT, {.i64=2}, 2, INT16_MAX, .flags = FLAGS },
+ { "weights", "set weight for each input", OFFSET(weights_str), AV_OPT_TYPE_STRING, {.str="1 1"}, 0, 0, .flags = TFLAGS },
+ { "scale", "set scale", OFFSET(scale), AV_OPT_TYPE_FLOAT, {.dbl=0}, 0, INT16_MAX, .flags = TFLAGS },
{ "duration", "how to determine end of stream", OFFSET(duration), AV_OPT_TYPE_INT, {.i64=0}, 0, 2, .flags = FLAGS, "duration" },
{ "longest", "Duration of longest input", 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "duration" },
{ "shortest", "Duration of shortest input", 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "duration" },
{ NULL }
};
+#if CONFIG_MIX_FILTER
AVFILTER_DEFINE_CLASS(mix);
-AVFilter ff_vf_mix = {
+const AVFilter ff_vf_mix = {
.name = "mix",
.description = NULL_IF_CONFIG_SMALL("Mix video inputs."),
.priv_size = sizeof(MixContext),
.init = init,
.uninit = uninit,
.activate = activate,
- .flags = AVFILTER_FLAG_DYNAMIC_INPUTS,
+ .flags = AVFILTER_FLAG_DYNAMIC_INPUTS | AVFILTER_FLAG_SLICE_THREADS |
+ AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL,
+ .process_command = process_command,
};
+
+#endif /* CONFIG_MIX_FILTER */
+
+#if CONFIG_TMIX_FILTER
+static int tmix_filter_frame(AVFilterLink *inlink, AVFrame *in)
+{
+ AVFilterContext *ctx = inlink->dst;
+ AVFilterLink *outlink = ctx->outputs[0];
+ MixContext *s = ctx->priv;
+ ThreadData td;
+ AVFrame *out;
+
+ if (s->nb_inputs == 1)
+ return ff_filter_frame(outlink, in);
+
+ if (s->nb_frames < s->nb_inputs) {
+ s->frames[s->nb_frames] = in;
+ s->nb_frames++;
+ if (s->nb_frames < s->nb_inputs)
+ return 0;
+ } else {
+ av_frame_free(&s->frames[0]);
+ memmove(&s->frames[0], &s->frames[1], sizeof(*s->frames) * (s->nb_inputs - 1));
+ s->frames[s->nb_inputs - 1] = in;
+ }
+
+ if (ctx->is_disabled) {
+ out = av_frame_clone(s->frames[0]);
+ if (!out)
+ return AVERROR(ENOMEM);
+ return ff_filter_frame(outlink, out);
+ }
+
+ out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
+ if (!out)
+ return AVERROR(ENOMEM);
+ out->pts = s->frames[0]->pts;
+
+ td.out = out;
+ td.in = s->frames;
+ ctx->internal->execute(ctx, mix_frames, &td, NULL, FFMIN(s->height[0], ff_filter_get_nb_threads(ctx)));
+
+ return ff_filter_frame(outlink, out);
+}
+
+static const AVOption tmix_options[] = {
+ { "frames", "set number of successive frames to mix", OFFSET(nb_inputs), AV_OPT_TYPE_INT, {.i64=3}, 1, 128, .flags = FLAGS },
+ { "weights", "set weight for each frame", OFFSET(weights_str), AV_OPT_TYPE_STRING, {.str="1 1 1"}, 0, 0, .flags = TFLAGS },
+ { "scale", "set scale", OFFSET(scale), AV_OPT_TYPE_FLOAT, {.dbl=0}, 0, INT16_MAX, .flags = TFLAGS },
+ { NULL },
+};
+
+static const AVFilterPad inputs[] = {
+ {
+ .name = "default",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .filter_frame = tmix_filter_frame,
+ },
+ { NULL }
+};
+
+AVFILTER_DEFINE_CLASS(tmix);
+
+const AVFilter ff_vf_tmix = {
+ .name = "tmix",
+ .description = NULL_IF_CONFIG_SMALL("Mix successive video frames."),
+ .priv_size = sizeof(MixContext),
+ .priv_class = &tmix_class,
+ .query_formats = query_formats,
+ .outputs = outputs,
+ .inputs = inputs,
+ .init = init,
+ .uninit = uninit,
+ .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS,
+ .process_command = process_command,
+};
+
+#endif /* CONFIG_TMIX_FILTER */
projects / ffmpeg / blobdiff