affect filters that set partial_buf_size
test-case
ffplay -i lavfi 'aevalsrc=sin(1000*t*t), aformat=sample_fmts=fltp, asplit
[a][b];
[a] firequalizer=fixed=on, showcqt=s=1280x360 [a1];
[b] firequalizer=fixed=on, showcqt=s=1280x360 [b1];
[a1][b1] vstack'
Signed-off-by: Muhammad Faiz <mfc...@gmail.com>
---
libavfilter/avfilter.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/libavfilter/avfilter.c b/libavfilter/avfilter.c
index c12d491..7e7e83c 100644
--- a/libavfilter/avfilter.c
+++ b/libavfilter/avfilter.c
@@ -1235,6 +1235,23 @@ static int take_samples(AVFilterLink *link, unsigned
min, unsigned max,
frame = ff_framequeue_peek(&link->fifo, 0);
av_samples_copy(buf->extended_data, frame->extended_data, p, 0, n,
link->channels, link->format);
+
+ if (!av_frame_is_writable(frame)) {
+ AVFrame *new = ff_get_audio_buffer(link, frame->nb_samples);
+ if (!new)
+ return AVERROR(ENOMEM);
+ ret = av_frame_copy_props(new, frame);
+ if (ret < 0)
+ return ret;
+ av_samples_copy(new->extended_data, frame->extended_data,
+ 0, 0, frame->nb_samples,
+ av_frame_get_channels(frame),
+ frame->format);
+ av_frame_unref(frame);
+ av_frame_move_ref(frame, new);
+ av_frame_free(&new);
+ }
+
frame->nb_samples -= n;
av_samples_copy(frame->extended_data, frame->extended_data, 0, n,
frame->nb_samples, link->channels, link->format);
--
2.5.0
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