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avcodec/mov2textsub: 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: Mark Thompson <sw@jkqxz.net>
Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2018-03-11 14:02:10 -03:00
parent 9c6dd9d624
commit 11bef2fe72
1 changed files with 8 additions and 20 deletions
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28
libavcodec/movsub_bsf.c
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@ -62,35 +62,23 @@ const AVBitStreamFilter ff_text2movsub_bsf = {
.filter = text2movsub, .filter = text2movsub,
}; };
static int mov2textsub(AVBSFContext *ctx, AVPacket *out) static int mov2textsub(AVBSFContext *ctx, AVPacket *pkt)
{ {
AVPacket *in;
int ret = 0; int ret = 0;
ret = ff_bsf_get_packet(ctx, &in); ret = ff_bsf_get_packet_ref(ctx, pkt);
if (ret < 0) if (ret < 0)
return ret; return ret;
if (in->size < 2) { if (pkt->size < 2) {
ret = AVERROR_INVALIDDATA; av_packet_unref(pkt);
goto fail; return AVERROR_INVALIDDATA;
} }
ret = av_new_packet(out, FFMIN(in->size - 2, AV_RB16(in->data))); pkt->data += 2;
if (ret < 0) pkt->size = FFMIN(pkt->size - 2, AV_RB16(pkt->data));
goto fail;
ret = av_packet_copy_props(out, in); return 0;
if (ret < 0)
goto fail;
memcpy(out->data, in->data + 2, out->size);
fail:
if (ret < 0)
av_packet_unref(out);
av_packet_free(&in);
return ret;
} }
const AVBitStreamFilter ff_mov2textsub_bsf = { const AVBitStreamFilter ff_mov2textsub_bsf = {