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avfilter/avf_showcwt: refactor code into function

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This commit is contained in:
Paul B Mahol 2022-11-29 11:04:08 +01:00
parent 634e29f3c0
commit a08a508105
1 changed files with 114 additions and 102 deletions
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216
libavfilter/avf_showcwt.c
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@ -656,6 +656,115 @@ static int config_output(AVFilterLink *outlink)
return 0;
}
static int output_frame(AVFilterContext *ctx)
{
AVFilterLink *outlink = ctx->outputs[0];
AVFilterLink *inlink = ctx->inputs[0];
ShowCWTContext *s = ctx->priv;
int64_t pts_offset;
int ret;
switch (s->slide) {
case SLIDE_SCROLL:
switch (s->direction) {
case DIRECTION_UD:
for (int p = 0; p < 3; p++) {
ptrdiff_t linesize = s->outpicref->linesize[p];
for (int y = s->h - 1; y > 0; y--) {
uint8_t *dst = s->outpicref->data[p] + y * linesize;
memmove(dst, dst - linesize, s->w);
}
}
break;
case DIRECTION_DU:
for (int p = 0; p < 3; p++) {
ptrdiff_t linesize = s->outpicref->linesize[p];
for (int y = 0; y < s->h - 1; y++) {
uint8_t *dst = s->outpicref->data[p] + y * linesize;
memmove(dst, dst + linesize, s->w);
}
}
break;
}
break;
}
ff_filter_execute(ctx, draw, NULL, NULL, s->nb_threads);
pts_offset = av_rescale(s->ihop_index, s->hop_size, s->ihop_size);
s->outpicref->pts = av_rescale_q(s->in_pts + pts_offset, inlink->time_base, outlink->time_base);
s->ihop_index++;
if (s->ihop_index >= s->ihop_size)
s->ihop_index = 0;
switch (s->slide) {
case SLIDE_REPLACE:
switch (s->direction) {
case DIRECTION_LR:
s->pos++;
if (s->pos >= s->w)
s->pos = 0;
break;
case DIRECTION_RL:
s->pos--;
if (s->pos < 0)
s->pos = s->w - 1;
break;
case DIRECTION_UD:
s->pos++;
if (s->pos >= s->h)
s->pos = 0;
break;
case DIRECTION_DU:
s->pos--;
if (s->pos < 0)
s->pos = s->h - 1;
break;
}
break;
case SLIDE_SCROLL:
switch (s->direction) {
case DIRECTION_UD:
case DIRECTION_LR:
s->pos = 0;
break;
case DIRECTION_RL:
s->pos = s->w - 1;
break;
case DIRECTION_DU:
s->pos = s->h - 1;
break;
}
break;
}
if (s->old_pts < s->outpicref->pts) {
AVFrame *out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
if (!out)
return AVERROR(ENOMEM);
ret = av_frame_copy_props(out, s->outpicref);
if (ret < 0)
goto fail;
ret = av_frame_copy(out, s->outpicref);
if (ret < 0)
goto fail;
s->old_pts = s->outpicref->pts;
ret = ff_filter_frame(outlink, out);
if (ret <= 0)
return ret;
fail:
av_frame_free(&out);
return ret;
}
return 1;
}
static int activate(AVFilterContext *ctx)
{
AVFilterLink *inlink = ctx->inputs[0];
@ -686,125 +795,28 @@ static int activate(AVFilterContext *ctx)
}
if (s->hop_index >= s->hop_size || s->ihop_index > 0) {
int64_t pts_offset;
s->hop_index = 0;
switch (s->slide) {
case SLIDE_SCROLL:
switch (s->direction) {
case DIRECTION_UD:
for (int p = 0; p < 3; p++) {
ptrdiff_t linesize = s->outpicref->linesize[p];
for (int y = s->h - 1; y > 0; y--) {
uint8_t *dst = s->outpicref->data[p] + y * linesize;
memmove(dst, dst - linesize, s->w);
}
}
break;
case DIRECTION_DU:
for (int p = 0; p < 3; p++) {
ptrdiff_t linesize = s->outpicref->linesize[p];
for (int y = 0; y < s->h - 1; y++) {
uint8_t *dst = s->outpicref->data[p] + y * linesize;
memmove(dst, dst + linesize, s->w);
}
}
break;
}
break;
}
for (int ch = 0; ch < s->nb_channels && s->ihop_index == 0; ch++) {
ff_filter_execute(ctx, run_channel_cwt, (void *)&ch, NULL,
s->nb_threads);
}
ff_filter_execute(ctx, draw, NULL, NULL, s->nb_threads);
pts_offset = av_rescale(s->ihop_index, s->hop_size, s->ihop_size);
s->outpicref->pts = av_rescale_q(s->in_pts + pts_offset, inlink->time_base, outlink->time_base);
s->ihop_index++;
if (s->ihop_index >= s->ihop_size)
s->ihop_index = 0;
switch (s->slide) {
case SLIDE_REPLACE:
switch (s->direction) {
case DIRECTION_LR:
s->pos++;
if (s->pos >= s->w)
s->pos = 0;
break;
case DIRECTION_RL:
s->pos--;
if (s->pos < 0)
s->pos = s->w - 1;
break;
case DIRECTION_UD:
s->pos++;
if (s->pos >= s->h)
s->pos = 0;
break;
case DIRECTION_DU:
s->pos--;
if (s->pos < 0)
s->pos = s->h - 1;
break;
}
break;
case SLIDE_SCROLL:
switch (s->direction) {
case DIRECTION_LR:
s->pos = 0;
break;
case DIRECTION_RL:
s->pos = s->w - 1;
break;
case DIRECTION_UD:
s->pos = 0;
break;
case DIRECTION_DU:
s->pos = s->h - 1;
break;
}
break;
}
if (s->old_pts < s->outpicref->pts) {
AVFrame *out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
if (!out)
return AVERROR(ENOMEM);
ret = av_frame_copy_props(out, s->outpicref);
if (ret < 0)
goto fail;
ret = av_frame_copy(out, s->outpicref);
if (ret < 0)
goto fail;
s->old_pts = s->outpicref->pts;
ret = ff_filter_frame(outlink, out);
if (ret <= 0)
return ret;
fail:
av_frame_free(&out);
ret = output_frame(ctx);
if (ret != 1)
return ret;
}
}
}
if (ff_inlink_acknowledge_status(inlink, &status, &pts)) {
if (status == AVERROR_EOF) {
ff_outlink_set_status(outlink, status, pts);
ff_outlink_set_status(outlink, status, s->old_pts);
return 0;
}
}
if (ff_inlink_queued_samples(inlink) > 0 || s->ihop_index || s->hop_index >= s->hop_size) {
if (ff_inlink_queued_samples(inlink) > 0 || s->ihop_index ||
s->hop_index >= s->hop_size) {
ff_filter_set_ready(ctx, 10);
return 0;
}