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authorNicolas George <nicolas.george@normalesup.org>2012-08-14 18:35:50 +0200
committerNicolas George <nicolas.george@normalesup.org>2012-08-17 18:26:38 +0200
commite54e30c88940fc090409cc60df4e452af6ef178d (patch)
tree0aa4a121ecba6b28fe26e87c79cc6dd582d69f54 /libavfilter/audio.c
parentcc8104b9086d2951a8c47601117275fadc70bc02 (diff)
downloadffmpeg-e54e30c88940fc090409cc60df4e452af6ef178d.tar.gz
lavfi: grant all permissions on mallocated audio buffers.
The permissions not requested by the filter that created the buffer may be useful for a later filter and avoid a copy.
Diffstat (limited to 'libavfilter/audio.c')
-rw-r--r--libavfilter/audio.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/libavfilter/audio.c b/libavfilter/audio.c
index aa87488f5f..525b471065 100644
--- a/libavfilter/audio.c
+++ b/libavfilter/audio.c
@@ -42,6 +42,10 @@ AVFilterBufferRef *ff_default_get_audio_buffer(AVFilterLink *link, int perms,
int nb_channels = av_get_channel_layout_nb_channels(link->channel_layout);
int planes = planar ? nb_channels : 1;
int linesize;
+ int full_perms = AV_PERM_READ | AV_PERM_WRITE | AV_PERM_PRESERVE |
+ AV_PERM_REUSE | AV_PERM_REUSE2 | AV_PERM_ALIGN;
+
+ av_assert1(!(perms & ~(full_perms | AV_PERM_NEG_LINESIZES)));
if (!(data = av_mallocz(sizeof(*data) * planes)))
goto fail;
@@ -49,7 +53,7 @@ AVFilterBufferRef *ff_default_get_audio_buffer(AVFilterLink *link, int perms,
if (av_samples_alloc(data, &linesize, nb_channels, nb_samples, link->format, 0) < 0)
goto fail;
- samplesref = avfilter_get_audio_buffer_ref_from_arrays(data, linesize, perms,
+ samplesref = avfilter_get_audio_buffer_ref_from_arrays(data, linesize, full_perms,
nb_samples, link->format,
link->channel_layout);
if (!samplesref)