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fftools/ffmpeg_filter: decouple allocating InputFilter and binding it to InputStream

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Will be useful in future commits.
This commit is contained in:
Anton Khirnov 2023-05-21 21:11:09 +02:00
parent 7ea10bfef3
commit 00183880aa
1 changed files with 22 additions and 9 deletions
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31
fftools/ffmpeg_filter.c
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@ -258,7 +258,24 @@ static OutputFilter *ofilter_alloc(FilterGraph *fg)
return ofilter;
}
static InputFilter *ifilter_alloc(FilterGraph *fg, InputStream *ist)
static int ifilter_bind_ist(InputFilter *ifilter, InputStream *ist)
{
InputFilterPriv *ifp = ifp_from_ifilter(ifilter);
int ret;
ret = ist_filter_add(ist, ifilter, filtergraph_is_simple(ifilter->graph));
if (ret < 0)
return ret;
ifp->ist = ist;
ifp->type_src = ist->st->codecpar->codec_type;
ifp->type = ifp->type_src == AVMEDIA_TYPE_SUBTITLE ?
AVMEDIA_TYPE_VIDEO : ifp->type_src;
return 0;
}
static InputFilter *ifilter_alloc(FilterGraph *fg)
{
InputFilterPriv *ifp = allocate_array_elem(&fg->inputs, sizeof(*ifp),
&fg->nb_inputs);
@ -272,10 +289,6 @@ static InputFilter *ifilter_alloc(FilterGraph *fg, InputStream *ist)
ifp->format = -1;
ifp->fallback.format = -1;
ifp->ist = ist;
ifp->type_src = ist->st->codecpar->codec_type;
ifp->type = ifp->type_src == AVMEDIA_TYPE_SUBTITLE ?
AVMEDIA_TYPE_VIDEO : ifp->type_src;
ifp->frame_queue = av_fifo_alloc2(8, sizeof(AVFrame*), AV_FIFO_FLAG_AUTO_GROW);
if (!ifp->frame_queue)
@ -373,9 +386,9 @@ int init_simple_filtergraph(InputStream *ist, OutputStream *ost,
ost->filter = ofilter;
ifilter = ifilter_alloc(fg, ist);
ifilter = ifilter_alloc(fg);
ret = ist_filter_add(ist, ifilter, 1);
ret = ifilter_bind_ist(ifilter, ist);
if (ret < 0)
return ret;
@ -455,10 +468,10 @@ static void init_input_filter(FilterGraph *fg, AVFilterInOut *in)
}
av_assert0(ist);
ifilter = ifilter_alloc(fg, ist);
ifilter = ifilter_alloc(fg);
ifilter->name = describe_filter_link(fg, in, 1);
ret = ist_filter_add(ist, ifilter, 0);
ret = ifilter_bind_ist(ifilter, ist);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR,
"Error binding an input stream to complex filtergraph input %s.\n",