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avfilter/af_afade: use the name 's' for the pointer to the private context

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Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2013-10-02 11:09:06 +00:00
parent 0425fd7eb2
commit 848a1e6738
1 changed files with 28 additions and 28 deletions
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56
libavfilter/af_afade.c
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@ -79,9 +79,9 @@ AVFILTER_DEFINE_CLASS(afade);
static av_cold int init(AVFilterContext *ctx)
{
AudioFadeContext *afade = ctx->priv;
AudioFadeContext *s = ctx->priv;
if (INT64_MAX - afade->nb_samples < afade->start_sample)
if (INT64_MAX - s->nb_samples < s->start_sample)
return AVERROR(EINVAL);
return 0;
@ -202,38 +202,38 @@ FADE(s32, int32_t)
static int config_input(AVFilterLink *inlink)
{
AVFilterContext *ctx = inlink->dst;
AudioFadeContext *afade = ctx->priv;
AVFilterContext *ctx = inlink->dst;
AudioFadeContext *s = ctx->priv;
switch (inlink->format) {
case AV_SAMPLE_FMT_DBL: afade->fade_samples = fade_samples_dbl; break;
case AV_SAMPLE_FMT_DBLP: afade->fade_samples = fade_samples_dblp; break;
case AV_SAMPLE_FMT_FLT: afade->fade_samples = fade_samples_flt; break;
case AV_SAMPLE_FMT_FLTP: afade->fade_samples = fade_samples_fltp; break;
case AV_SAMPLE_FMT_S16: afade->fade_samples = fade_samples_s16; break;
case AV_SAMPLE_FMT_S16P: afade->fade_samples = fade_samples_s16p; break;
case AV_SAMPLE_FMT_S32: afade->fade_samples = fade_samples_s32; break;
case AV_SAMPLE_FMT_S32P: afade->fade_samples = fade_samples_s32p; break;
case AV_SAMPLE_FMT_DBL: s->fade_samples = fade_samples_dbl; break;
case AV_SAMPLE_FMT_DBLP: s->fade_samples = fade_samples_dblp; break;
case AV_SAMPLE_FMT_FLT: s->fade_samples = fade_samples_flt; break;
case AV_SAMPLE_FMT_FLTP: s->fade_samples = fade_samples_fltp; break;
case AV_SAMPLE_FMT_S16: s->fade_samples = fade_samples_s16; break;
case AV_SAMPLE_FMT_S16P: s->fade_samples = fade_samples_s16p; break;
case AV_SAMPLE_FMT_S32: s->fade_samples = fade_samples_s32; break;
case AV_SAMPLE_FMT_S32P: s->fade_samples = fade_samples_s32p; break;
}
if (afade->duration)
afade->nb_samples = av_rescale(afade->duration, inlink->sample_rate, AV_TIME_BASE);
if (afade->start_time)
afade->start_sample = av_rescale(afade->start_time, inlink->sample_rate, AV_TIME_BASE);
if (s->duration)
s->nb_samples = av_rescale(s->duration, inlink->sample_rate, AV_TIME_BASE);
if (s->start_time)
s->start_sample = av_rescale(s->start_time, inlink->sample_rate, AV_TIME_BASE);
return 0;
}
static int filter_frame(AVFilterLink *inlink, AVFrame *buf)
{
AudioFadeContext *afade = inlink->dst->priv;
AudioFadeContext *s = inlink->dst->priv;
AVFilterLink *outlink = inlink->dst->outputs[0];
int nb_samples = buf->nb_samples;
AVFrame *out_buf;
int64_t cur_sample = av_rescale_q(buf->pts, (AVRational){1, outlink->sample_rate}, outlink->time_base);
if ((!afade->type && (afade->start_sample + afade->nb_samples < cur_sample)) ||
( afade->type && (cur_sample + afade->nb_samples < afade->start_sample)))
if ((!s->type && (s->start_sample + s->nb_samples < cur_sample)) ||
( s->type && (cur_sample + s->nb_samples < s->start_sample)))
return ff_filter_frame(outlink, buf);
if (av_frame_is_writable(buf)) {
@ -245,22 +245,22 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *buf)
av_frame_copy_props(out_buf, buf);
}
if ((!afade->type && (cur_sample + nb_samples < afade->start_sample)) ||
( afade->type && (afade->start_sample + afade->nb_samples < cur_sample))) {
if ((!s->type && (cur_sample + nb_samples < s->start_sample)) ||
( s->type && (s->start_sample + s->nb_samples < cur_sample))) {
av_samples_set_silence(out_buf->extended_data, 0, nb_samples,
av_frame_get_channels(out_buf), out_buf->format);
} else {
int64_t start;
if (!afade->type)
start = cur_sample - afade->start_sample;
if (!s->type)
start = cur_sample - s->start_sample;
else
start = afade->start_sample + afade->nb_samples - cur_sample;
start = s->start_sample + s->nb_samples - cur_sample;
afade->fade_samples(out_buf->extended_data, buf->extended_data,
nb_samples, av_frame_get_channels(buf),
afade->type ? -1 : 1, start,
afade->nb_samples, afade->curve);
s->fade_samples(out_buf->extended_data, buf->extended_data,
nb_samples, av_frame_get_channels(buf),
s->type ? -1 : 1, start,
s->nb_samples, s->curve);
}
if (buf != out_buf)