Welcome to mirror list, hosted at ThFree Co, Russian Federation.

github.com/FFmpeg/FFmpeg.git - Unnamed repository; edit this file 'description' to name the repository.
summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorNicolas George <nicolas.george@normalesup.org>2012-07-08 21:45:33 +0400
committerNicolas George <nicolas.george@normalesup.org>2012-07-08 21:54:08 +0400
commit299387ebf4d98d4808f065fd3797b0fa108f506f (patch)
tree1f55f1abe50974028b412a48dd5eb0d7180b0641 /libavfilter/vf_settb.c
parent65e65e3ce28e4311b5d8ed28ecfe1edd11581a4a (diff)
vf_settb: rename the file as f_settb.
Diffstat (limited to 'libavfilter/vf_settb.c')
-rw-r--r--libavfilter/vf_settb.c185
1 files changed, 0 insertions, 185 deletions
diff --git a/libavfilter/vf_settb.c b/libavfilter/vf_settb.c
deleted file mode 100644
index 6549a5c26c..0000000000
--- a/libavfilter/vf_settb.c
+++ /dev/null
@@ -1,185 +0,0 @@
-/*
- * Copyright (c) 2010 Stefano Sabatini
- *
- * 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
- */
-
-/**
- * @file
- * Set timebase for the output link.
- */
-
-#include "libavutil/avstring.h"
-#include "libavutil/eval.h"
-#include "libavutil/mathematics.h"
-#include "libavutil/rational.h"
-#include "avfilter.h"
-#include "internal.h"
-#include "audio.h"
-#include "video.h"
-
-static const char *const var_names[] = {
- "AVTB", /* default timebase 1/AV_TIME_BASE */
- "intb", /* input timebase */
- "sr", /* sample rate */
- NULL
-};
-
-enum var_name {
- VAR_AVTB,
- VAR_INTB,
- VAR_SR,
- VAR_VARS_NB
-};
-
-typedef struct {
- char tb_expr[256];
- double var_values[VAR_VARS_NB];
-} SetTBContext;
-
-static av_cold int init(AVFilterContext *ctx, const char *args)
-{
- SetTBContext *settb = ctx->priv;
- av_strlcpy(settb->tb_expr, "intb", sizeof(settb->tb_expr));
-
- if (args)
- sscanf(args, "%255[^:]", settb->tb_expr);
-
- return 0;
-}
-
-static int config_output_props(AVFilterLink *outlink)
-{
- AVFilterContext *ctx = outlink->src;
- SetTBContext *settb = ctx->priv;
- AVFilterLink *inlink = ctx->inputs[0];
- AVRational time_base;
- int ret;
- double res;
-
- settb->var_values[VAR_AVTB] = av_q2d(AV_TIME_BASE_Q);
- settb->var_values[VAR_INTB] = av_q2d(inlink->time_base);
- settb->var_values[VAR_SR] = inlink->sample_rate;
-
- outlink->w = inlink->w;
- outlink->h = inlink->h;
-
- if ((ret = av_expr_parse_and_eval(&res, settb->tb_expr, var_names, settb->var_values,
- NULL, NULL, NULL, NULL, NULL, 0, NULL)) < 0) {
- av_log(ctx, AV_LOG_ERROR, "Invalid expression '%s' for timebase.\n", settb->tb_expr);
- return ret;
- }
- time_base = av_d2q(res, INT_MAX);
- if (time_base.num <= 0 || time_base.den <= 0) {
- av_log(ctx, AV_LOG_ERROR,
- "Invalid non-positive values for the timebase num:%d or den:%d.\n",
- time_base.num, time_base.den);
- return AVERROR(EINVAL);
- }
-
- outlink->time_base = time_base;
- av_log(outlink->src, AV_LOG_VERBOSE, "tb:%d/%d -> tb:%d/%d\n",
- inlink ->time_base.num, inlink ->time_base.den,
- outlink->time_base.num, outlink->time_base.den);
-
- return 0;
-}
-
-static void start_frame(AVFilterLink *inlink, AVFilterBufferRef *picref)
-{
- AVFilterContext *ctx = inlink->dst;
- AVFilterLink *outlink = ctx->outputs[0];
- AVFilterBufferRef *picref2 = picref;
-
- if (av_cmp_q(inlink->time_base, outlink->time_base)) {
- picref2 = avfilter_ref_buffer(picref, ~0);
- picref2->pts = av_rescale_q(picref->pts, inlink->time_base, outlink->time_base);
- av_log(ctx, AV_LOG_DEBUG, "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
- inlink ->time_base.num, inlink ->time_base.den, picref ->pts,
- outlink->time_base.num, outlink->time_base.den, picref2->pts);
- avfilter_unref_buffer(picref);
- }
-
- ff_start_frame(outlink, picref2);
-}
-
-static void filter_samples(AVFilterLink *inlink, AVFilterBufferRef *insamples)
-{
- AVFilterContext *ctx = inlink->dst;
- AVFilterLink *outlink = ctx->outputs[0];
- AVFilterBufferRef *outsamples = insamples;
-
- if (av_cmp_q(inlink->time_base, outlink->time_base)) {
- outsamples = avfilter_ref_buffer(insamples, ~0);
- outsamples->pts = av_rescale_q(insamples->pts, inlink->time_base, outlink->time_base);
- av_log(ctx, AV_LOG_DEBUG, "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
- inlink ->time_base.num, inlink ->time_base.den, insamples ->pts,
- outlink->time_base.num, outlink->time_base.den, outsamples->pts);
- avfilter_unref_buffer(insamples);
- }
-
- ff_filter_samples(outlink, outsamples);
-}
-
-#if CONFIG_SETTB_FILTER
-AVFilter avfilter_vf_settb = {
- .name = "settb",
- .description = NULL_IF_CONFIG_SMALL("Set timebase for the video output link."),
- .init = init,
-
- .priv_size = sizeof(SetTBContext),
-
- .inputs = (const AVFilterPad[]) {
- { .name = "default",
- .type = AVMEDIA_TYPE_VIDEO,
- .get_video_buffer = ff_null_get_video_buffer,
- .start_frame = start_frame,
- .end_frame = ff_null_end_frame },
- { .name = NULL }
- },
- .outputs = (const AVFilterPad[]) {
- { .name = "default",
- .type = AVMEDIA_TYPE_VIDEO,
- .config_props = config_output_props, },
- { .name = NULL}
- },
-};
-#endif
-
-#if CONFIG_ASETTB_FILTER
-AVFilter avfilter_af_asettb = {
- .name = "asettb",
- .description = NULL_IF_CONFIG_SMALL("Set timebase for the audio output link."),
- .init = init,
-
- .priv_size = sizeof(SetTBContext),
-
- .inputs = (const AVFilterPad[]) {
- { .name = "default",
- .type = AVMEDIA_TYPE_AUDIO,
- .get_audio_buffer = ff_null_get_audio_buffer,
- .filter_samples = filter_samples, },
- { .name = NULL }
- },
- .outputs = (const AVFilterPad[]) {
- { .name = "default",
- .type = AVMEDIA_TYPE_AUDIO,
- .config_props = config_output_props, },
- { .name = NULL}
- },
-};
-#endif