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avcodec/noise_bsf: move the reference in the bsf internal buffer

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There's no need to allocate a new packet for it.

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2018-03-20 01:19:19 -03:00
parent ed1f08bfb5
commit dc99ee6b08
1 changed files with 9 additions and 16 deletions
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25
libavcodec/noise_bsf.c
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@ -35,45 +35,38 @@ typedef struct NoiseContext {
unsigned int state;
} NoiseContext;
static int noise(AVBSFContext *ctx, AVPacket *out)
static int noise(AVBSFContext *ctx, AVPacket *pkt)
{
NoiseContext *s = ctx->priv_data;
AVPacket *in;
int amount = s->amount > 0 ? s->amount : (s->state % 10001 + 1);
int i, ret = 0;
if (amount <= 0)
return AVERROR(EINVAL);
ret = ff_bsf_get_packet(ctx, &in);
ret = ff_bsf_get_packet_ref(ctx, pkt);
if (ret < 0)
return ret;
if (s->dropamount > 0 && s->state % s->dropamount == 0) {
s->state++;
av_packet_free(&in);
av_packet_unref(pkt);
return AVERROR(EAGAIN);
}
ret = av_new_packet(out, in->size);
ret = av_packet_make_writable(pkt);
if (ret < 0)
goto fail;
ret = av_packet_copy_props(out, in);
if (ret < 0)
goto fail;
memcpy(out->data, in->data, in->size);
for (i = 0; i < out->size; i++) {
s->state += out->data[i] + 1;
for (i = 0; i < pkt->size; i++) {
s->state += pkt->data[i] + 1;
if (s->state % amount == 0)
out->data[i] = s->state;
pkt->data[i] = s->state;
}
fail:
if (ret < 0)
av_packet_unref(out);
av_packet_free(&in);
av_packet_unref(pkt);
return ret;
}