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55d1d9eb2f
* gnu/packages/patches/gstreamer-buffer-reset-offset.patch: New file. * gnu/local.mk (dist_patch_DATA): Add it. * gnu/packages/gstreamer.scm (gstreamer)[source](patches): New field. [arguments]: Do not disable any tests.
59 lines
2.4 KiB
Diff
59 lines
2.4 KiB
Diff
Fix a buffer offset problem in GStreamer 1.16. Initially reported by Mark H.
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Weaver in <https://lists.gnu.org/archive/html/guix-devel/2019-06/msg00140.html>.
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See also <https://gitlab.freedesktop.org/gstreamer/gstreamer/issues/316>.
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From 1734c9fc1a4f99b165383ae1eb02f04e0844a00c Mon Sep 17 00:00:00 2001
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From: Nicolas Dufresne <nicolas.dufresne@collabora.com>
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Date: Sat, 29 Jun 2019 09:22:05 -0400
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Subject: [PATCH] bufferpool: Fix the buffer size reset code
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The offset in gst_buffer_resize() is additive. So to move back the
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offset to zero, we need to pass the opposite of the current offset. This
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was raised through the related unit test failingon 32bit as on 64bit
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the alignment padding was enough to hide the issue. The test was
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modified to also fail on 64bit. This patch will remove spurious
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assertions like:
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assertion 'bufmax >= bufoffs + offset + size' failed
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Fixes #316
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---
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gst/gstbufferpool.c | 7 +++++--
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tests/check/gst/gstbufferpool.c | 2 +-
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2 files changed, 6 insertions(+), 3 deletions(-)
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diff --git a/gst/gstbufferpool.c b/gst/gstbufferpool.c
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index e5c7a5872..619860e63 100644
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--- a/gst/gstbufferpool.c
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+++ b/gst/gstbufferpool.c
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@@ -1222,8 +1222,11 @@ default_reset_buffer (GstBufferPool * pool, GstBuffer * buffer)
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GST_BUFFER_OFFSET_END (buffer) = GST_BUFFER_OFFSET_NONE;
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/* if the memory is intact reset the size to the full size */
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- if (!GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_TAG_MEMORY))
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- gst_buffer_resize (buffer, 0, pool->priv->size);
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+ if (!GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_TAG_MEMORY)) {
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+ gsize offset;
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+ gst_buffer_get_sizes (buffer, &offset, NULL);
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+ gst_buffer_resize (buffer, -offset, pool->priv->size);
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+ }
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/* remove all metadata without the POOLED flag */
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gst_buffer_foreach_meta (buffer, remove_meta_unpooled, pool);
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diff --git a/tests/check/gst/gstbufferpool.c b/tests/check/gst/gstbufferpool.c
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index f0c3c8d8e..dd9b2dc03 100644
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--- a/tests/check/gst/gstbufferpool.c
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+++ b/tests/check/gst/gstbufferpool.c
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@@ -190,7 +190,7 @@ GST_START_TEST (test_buffer_modify_discard)
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gst_buffer_pool_acquire_buffer (pool, &buf, NULL);
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buffer_track_destroy (buf, &dcount);
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/* do resize, as we didn't modify the memory, pool should reuse this buffer */
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- gst_buffer_resize (buf, 5, 2);
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+ gst_buffer_resize (buf, 8, 2);
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gst_buffer_unref (buf);
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/* buffer should've gone back into pool */
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--
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2.22.0
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