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

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Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
This commit is contained in:
Ganesh Ajjanagadde 2015-08-26 12:53:44 -04:00 committed by Paul B Mahol
parent 15f4b3db58
commit 9ba511d5d3
1 changed files with 53 additions and 53 deletions
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106
libavfilter/af_amerge.c
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@ -60,27 +60,27 @@ AVFILTER_DEFINE_CLASS(amerge);
static av_cold void uninit(AVFilterContext *ctx)
{
AMergeContext *am = ctx->priv;
AMergeContext *s = ctx->priv;
int i;
for (i = 0; i < am->nb_inputs; i++) {
if (am->in)
ff_bufqueue_discard_all(&am->in[i].queue);
for (i = 0; i < s->nb_inputs; i++) {
if (s->in)
ff_bufqueue_discard_all(&s->in[i].queue);
if (ctx->input_pads)
av_freep(&ctx->input_pads[i].name);
}
av_freep(&am->in);
av_freep(&s->in);
}
static int query_formats(AVFilterContext *ctx)
{
AMergeContext *am = ctx->priv;
AMergeContext *s = ctx->priv;
int64_t inlayout[SWR_CH_MAX], outlayout = 0;
AVFilterFormats *formats;
AVFilterChannelLayouts *layouts;
int i, overlap = 0, nb_ch = 0;
for (i = 0; i < am->nb_inputs; i++) {
for (i = 0; i < s->nb_inputs; i++) {
if (!ctx->inputs[i]->in_channel_layouts ||
!ctx->inputs[i]->in_channel_layouts->nb_channel_layouts) {
av_log(ctx, AV_LOG_WARNING,
@ -93,11 +93,11 @@ static int query_formats(AVFilterContext *ctx)
av_get_channel_layout_string(buf, sizeof(buf), 0, inlayout[i]);
av_log(ctx, AV_LOG_INFO, "Using \"%s\" for input %d\n", buf, i + 1);
}
am->in[i].nb_ch = av_get_channel_layout_nb_channels(inlayout[i]);
s->in[i].nb_ch = av_get_channel_layout_nb_channels(inlayout[i]);
if (outlayout & inlayout[i])
overlap++;
outlayout |= inlayout[i];
nb_ch += am->in[i].nb_ch;
nb_ch += s->in[i].nb_ch;
}
if (nb_ch > SWR_CH_MAX) {
av_log(ctx, AV_LOG_ERROR, "Too many channels (max %d)\n", SWR_CH_MAX);
@ -108,7 +108,7 @@ static int query_formats(AVFilterContext *ctx)
"Input channel layouts overlap: "
"output layout will be determined by the number of distinct input channels\n");
for (i = 0; i < nb_ch; i++)
am->route[i] = i;
s->route[i] = i;
outlayout = av_get_default_channel_layout(nb_ch);
if (!outlayout)
outlayout = ((int64_t)1 << nb_ch) - 1;
@ -116,17 +116,17 @@ static int query_formats(AVFilterContext *ctx)
int *route[SWR_CH_MAX];
int c, out_ch_number = 0;
route[0] = am->route;
for (i = 1; i < am->nb_inputs; i++)
route[i] = route[i - 1] + am->in[i - 1].nb_ch;
route[0] = s->route;
for (i = 1; i < s->nb_inputs; i++)
route[i] = route[i - 1] + s->in[i - 1].nb_ch;
for (c = 0; c < 64; c++)
for (i = 0; i < am->nb_inputs; i++)
for (i = 0; i < s->nb_inputs; i++)
if ((inlayout[i] >> c) & 1)
*(route[i]++) = out_ch_number++;
}
formats = ff_make_format_list(ff_packed_sample_fmts_array);
ff_set_common_formats(ctx, formats);
for (i = 0; i < am->nb_inputs; i++) {
for (i = 0; i < s->nb_inputs; i++) {
layouts = NULL;
ff_add_channel_layout(&layouts, inlayout[i]);
ff_channel_layouts_ref(layouts, &ctx->inputs[i]->out_channel_layouts);
@ -141,11 +141,11 @@ static int query_formats(AVFilterContext *ctx)
static int config_output(AVFilterLink *outlink)
{
AVFilterContext *ctx = outlink->src;
AMergeContext *am = ctx->priv;
AMergeContext *s = ctx->priv;
AVBPrint bp;
int i;
for (i = 1; i < am->nb_inputs; i++) {
for (i = 1; i < s->nb_inputs; i++) {
if (ctx->inputs[i]->sample_rate != ctx->inputs[0]->sample_rate) {
av_log(ctx, AV_LOG_ERROR,
"Inputs must have the same sample rate "
@ -154,12 +154,12 @@ static int config_output(AVFilterLink *outlink)
return AVERROR(EINVAL);
}
}
am->bps = av_get_bytes_per_sample(ctx->outputs[0]->format);
s->bps = av_get_bytes_per_sample(ctx->outputs[0]->format);
outlink->sample_rate = ctx->inputs[0]->sample_rate;
outlink->time_base = ctx->inputs[0]->time_base;
av_bprint_init(&bp, 0, 1);
for (i = 0; i < am->nb_inputs; i++) {
for (i = 0; i < s->nb_inputs; i++) {
av_bprintf(&bp, "%sin%d:", i ? " + " : "", i);
av_bprint_channel_layout(&bp, -1, ctx->inputs[i]->channel_layout);
}
@ -173,11 +173,11 @@ static int config_output(AVFilterLink *outlink)
static int request_frame(AVFilterLink *outlink)
{
AVFilterContext *ctx = outlink->src;
AMergeContext *am = ctx->priv;
AMergeContext *s = ctx->priv;
int i, ret;
for (i = 0; i < am->nb_inputs; i++)
if (!am->in[i].nb_samples)
for (i = 0; i < s->nb_inputs; i++)
if (!s->in[i].nb_samples)
if ((ret = ff_request_frame(ctx->inputs[i])) < 0)
return ret;
return 0;
@ -223,27 +223,27 @@ static inline void copy_samples(int nb_inputs, struct amerge_input in[],
static int filter_frame(AVFilterLink *inlink, AVFrame *insamples)
{
AVFilterContext *ctx = inlink->dst;
AMergeContext *am = ctx->priv;
AMergeContext *s = ctx->priv;
AVFilterLink *const outlink = ctx->outputs[0];
int input_number;
int nb_samples, ns, i;
AVFrame *outbuf, *inbuf[SWR_CH_MAX];
uint8_t *ins[SWR_CH_MAX], *outs;
for (input_number = 0; input_number < am->nb_inputs; input_number++)
for (input_number = 0; input_number < s->nb_inputs; input_number++)
if (inlink == ctx->inputs[input_number])
break;
av_assert1(input_number < am->nb_inputs);
if (ff_bufqueue_is_full(&am->in[input_number].queue)) {
av_assert1(input_number < s->nb_inputs);
if (ff_bufqueue_is_full(&s->in[input_number].queue)) {
av_frame_free(&insamples);
return AVERROR(ENOMEM);
}
ff_bufqueue_add(ctx, &am->in[input_number].queue, av_frame_clone(insamples));
am->in[input_number].nb_samples += insamples->nb_samples;
ff_bufqueue_add(ctx, &s->in[input_number].queue, av_frame_clone(insamples));
s->in[input_number].nb_samples += insamples->nb_samples;
av_frame_free(&insamples);
nb_samples = am->in[0].nb_samples;
for (i = 1; i < am->nb_inputs; i++)
nb_samples = FFMIN(nb_samples, am->in[i].nb_samples);
nb_samples = s->in[0].nb_samples;
for (i = 1; i < s->nb_inputs; i++)
nb_samples = FFMIN(nb_samples, s->in[i].nb_samples);
if (!nb_samples)
return 0;
@ -251,15 +251,15 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *insamples)
if (!outbuf)
return AVERROR(ENOMEM);
outs = outbuf->data[0];
for (i = 0; i < am->nb_inputs; i++) {
inbuf[i] = ff_bufqueue_peek(&am->in[i].queue, 0);
for (i = 0; i < s->nb_inputs; i++) {
inbuf[i] = ff_bufqueue_peek(&s->in[i].queue, 0);
ins[i] = inbuf[i]->data[0] +
am->in[i].pos * am->in[i].nb_ch * am->bps;
s->in[i].pos * s->in[i].nb_ch * s->bps;
}
av_frame_copy_props(outbuf, inbuf[0]);
outbuf->pts = inbuf[0]->pts == AV_NOPTS_VALUE ? AV_NOPTS_VALUE :
inbuf[0]->pts +
av_rescale_q(am->in[0].pos,
av_rescale_q(s->in[0].pos,
av_make_q(1, ctx->inputs[0]->sample_rate),
ctx->outputs[0]->time_base);
@ -269,34 +269,34 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *insamples)
while (nb_samples) {
ns = nb_samples;
for (i = 0; i < am->nb_inputs; i++)
ns = FFMIN(ns, inbuf[i]->nb_samples - am->in[i].pos);
for (i = 0; i < s->nb_inputs; i++)
ns = FFMIN(ns, inbuf[i]->nb_samples - s->in[i].pos);
/* Unroll the most common sample formats: speed +~350% for the loop,
+~13% overall (including two common decoders) */
switch (am->bps) {
switch (s->bps) {
case 1:
copy_samples(am->nb_inputs, am->in, am->route, ins, &outs, ns, 1);
copy_samples(s->nb_inputs, s->in, s->route, ins, &outs, ns, 1);
break;
case 2:
copy_samples(am->nb_inputs, am->in, am->route, ins, &outs, ns, 2);
copy_samples(s->nb_inputs, s->in, s->route, ins, &outs, ns, 2);
break;
case 4:
copy_samples(am->nb_inputs, am->in, am->route, ins, &outs, ns, 4);
copy_samples(s->nb_inputs, s->in, s->route, ins, &outs, ns, 4);
break;
default:
copy_samples(am->nb_inputs, am->in, am->route, ins, &outs, ns, am->bps);
copy_samples(s->nb_inputs, s->in, s->route, ins, &outs, ns, s->bps);
break;
}
nb_samples -= ns;
for (i = 0; i < am->nb_inputs; i++) {
am->in[i].nb_samples -= ns;
am->in[i].pos += ns;
if (am->in[i].pos == inbuf[i]->nb_samples) {
am->in[i].pos = 0;
for (i = 0; i < s->nb_inputs; i++) {
s->in[i].nb_samples -= ns;
s->in[i].pos += ns;
if (s->in[i].pos == inbuf[i]->nb_samples) {
s->in[i].pos = 0;
av_frame_free(&inbuf[i]);
ff_bufqueue_get(&am->in[i].queue);
inbuf[i] = ff_bufqueue_peek(&am->in[i].queue, 0);
ff_bufqueue_get(&s->in[i].queue);
inbuf[i] = ff_bufqueue_peek(&s->in[i].queue, 0);
ins[i] = inbuf[i] ? inbuf[i]->data[0] : NULL;
}
}
@ -306,13 +306,13 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *insamples)
static av_cold int init(AVFilterContext *ctx)
{
AMergeContext *am = ctx->priv;
AMergeContext *s = ctx->priv;
int i;
am->in = av_calloc(am->nb_inputs, sizeof(*am->in));
if (!am->in)
s->in = av_calloc(s->nb_inputs, sizeof(*s->in));
if (!s->in)
return AVERROR(ENOMEM);
for (i = 0; i < am->nb_inputs; i++) {
for (i = 0; i < s->nb_inputs; i++) {
char *name = av_asprintf("in%d", i);
AVFilterPad pad = {
.name = name,