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lavfi: let gcc realign the stack on public graph driving functions

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The functions which actually drive the filter graph by pushing
frames through it need to ensure an aligned stack for SIMD functions.

This fixes a crash in YADIF filter when using a mingw build in a MSVC
application.

Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Hendrik Leppkes 2013-03-15 20:44:57 +01:00 committed by Martin Storsjö
parent c0c2b96c13
commit 20c86571cc
2 changed files with 8 additions and 4 deletions
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9
libavfilter/buffersink.c
View File

@ -58,7 +58,8 @@ static int filter_frame(AVFilterLink *link, AVFrame *frame)
return 0;
}
int av_buffersink_get_frame(AVFilterContext *ctx, AVFrame *frame)
int attribute_align_arg av_buffersink_get_frame(AVFilterContext *ctx,
AVFrame *frame)
{
BufferSinkContext *s = ctx->priv;
AVFilterLink *link = ctx->inputs[0];
@ -98,7 +99,8 @@ static int read_from_fifo(AVFilterContext *ctx, AVFrame *frame,
}
int av_buffersink_get_samples(AVFilterContext *ctx, AVFrame *frame, int nb_samples)
int attribute_align_arg av_buffersink_get_samples(AVFilterContext *ctx,
AVFrame *frame, int nb_samples)
{
BufferSinkContext *s = ctx->priv;
AVFilterLink *link = ctx->inputs[0];
@ -144,7 +146,8 @@ static void compat_free_buffer(AVFilterBuffer *buf)
av_free(buf);
}
static int compat_read(AVFilterContext *ctx, AVFilterBufferRef **pbuf, int nb_samples)
static int attribute_align_arg compat_read(AVFilterContext *ctx,
AVFilterBufferRef **pbuf, int nb_samples)
{
AVFilterBufferRef *buf;
AVFrame *frame;

3
libavfilter/buffersrc.c
View File

@ -88,7 +88,8 @@ int av_buffersrc_write_frame(AVFilterContext *ctx, const AVFrame *frame)
return ret;
}
int av_buffersrc_add_frame(AVFilterContext *ctx, AVFrame *frame)
int attribute_align_arg av_buffersrc_add_frame(AVFilterContext *ctx,
AVFrame *frame)
{
BufferSourceContext *s = ctx->priv;
AVFrame *copy;