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h264parse: default to byte-stream/nalu format (Annex B).

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Always default to stream-format=byte-stream,alignment=nalu if avcC
format was not detected. This is the natural stream format specified
in the standard (Annex.B): a series of NAL units prefixed with the
usual start code.

https://bugzilla.gnome.org/show_bug.cgi?id=732167
This commit is contained in:
Gwenole Beauchesne 2014-06-26 14:39:30 +02:00
parent 8b473972e0
commit c767be53d6
2 changed files with 44 additions and 0 deletions
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43
patches/videoparsers/0004-h264parse-default-to-byte-stream-nalu-format-Annex-B.patch Normal file
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@ -0,0 +1,43 @@
From 3885faab12f7bbcc862a3da191161bf91b0b8bd9 Mon Sep 17 00:00:00 2001
From: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Date: Tue, 24 Jun 2014 17:27:12 +0200
Subject: [PATCH 4/8] h264parse: default to byte-stream/nalu format (Annex B).
Always default to stream-format=byte-stream,alignment=nalu if avcC
format was not detected. This is the natural stream format specified
in the standard (Annex.B): a series of NAL units prefixed with the
usual start code.
https://bugzilla.gnome.org/show_bug.cgi?id=732167
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
---
gst/vaapi/gsth264parse.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/gst/vaapi/gsth264parse.c b/gst/vaapi/gsth264parse.c
index 7a88a07..4800c2b 100644
--- a/gst/vaapi/gsth264parse.c
+++ b/gst/vaapi/gsth264parse.c
@@ -367,7 +367,8 @@ gst_h264_parse_negotiate (GstH264Parse * h264parse, gint in_format,
if (!format)
format = GST_H264_PARSE_FORMAT_BYTE;
if (!align)
- align = GST_H264_PARSE_ALIGN_AU;
+ align = format == GST_H264_PARSE_FORMAT_BYTE ? GST_H264_PARSE_ALIGN_NAL :
+ GST_H264_PARSE_ALIGN_AU;
GST_DEBUG_OBJECT (h264parse, "selected format %s, alignment %s",
gst_h264_parse_get_string (h264parse, TRUE, format),
@@ -1893,7 +1894,7 @@ gst_h264_parse_set_caps (GstBaseParse * parse, GstCaps * caps)
if (format == GST_H264_PARSE_FORMAT_NONE) {
format = GST_H264_PARSE_FORMAT_BYTE;
- align = GST_H264_PARSE_ALIGN_AU;
+ align = GST_H264_PARSE_ALIGN_NAL;
}
}
--
1.7.9.5

1
patches/videoparsers/series.frag
View file

@ -4,5 +4,6 @@ videoparsers_patches_base = \
0001-plugins-compile-the-built-in-video-parsers-as-vaapip.patch \
0002-h264parse-fix-build-with-GStreamer-1.2.patch \
0003-h264parse-fix-and-optimize-NAL-collection-function.patch \
0004-h264parse-default-to-byte-stream-nalu-format-Annex-B.patch \
0003-h264parse-add-initial-support-for-MVC-NAL-units.patch \
$(NULL)