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lavfi: grant all permissions on mallocated audio buffers.

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The permissions not requested by the filter that created
the buffer may be useful for a later filter and avoid a copy.
This commit is contained in:
Nicolas George 2012-08-14 18:35:50 +02:00
parent cc8104b908
commit e54e30c889
1 changed files with 5 additions and 1 deletions
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6
libavfilter/audio.c
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@ -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)