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Fix compile error on arm4/arm5 platform

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Since these commits
http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=adf8227cf4e7b4fccb2ad88e1e09b6dc00dd00ed
http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=db7f1c7c5a1d37e7f4da64a79a97bea1c4b6e9f8

compilation on arm4/arm5 fails:

libavcodec/libavcodec.so: undefined reference to
`ff_startcode_find_candidate_armv6'

Because libavcodec/arm/Makefile contains
ARMV6-OBJS-$(CONFIG_STARTCODE)         += arm/startcode_armv6.o
function ff_startcode_find_candidate_armv6 is not included for older ARM
archs. The bug was found during automatic buildroot builds:

http://autobuild.buildroot.net/results/ec7/ec71e4f16ee9106747dff5f15999cbd17903e76f//build-end.log
Quote from configure summary:
ARCH                      arm (armv4t)
big-endian                no
runtime cpu detection     yes
ARMv5TE enabled           no
ARMv6 enabled             no
ARMv6T2 enabled           no

http://autobuild.buildroot.net/results/be7/be72eb182eaccf0064a32c9dfc2ac1c0d6555506/build-end.log
ARCH                      arm (armv5te)
big-endian                no
runtime cpu detection     yes
ARMv5TE enabled           yes
ARMv6 enabled             no
ARMv6T2 enabled           no

This patch provides the necessary #if clauses as discussed with Michael:
https://ffmpeg.org/pipermail/ffmpeg-devel/2014-September/163329.html

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Bernd Kuhls 2014-09-23 20:10:03 +02:00 committed by Michael Niedermayer
parent 6843b9dc78
commit 6b733be755
2 changed files with 4 additions and 0 deletions
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2
libavcodec/arm/h264dsp_init_arm.c
View File

@ -107,8 +107,10 @@ av_cold void ff_h264dsp_init_arm(H264DSPContext *c, const int bit_depth,
{
int cpu_flags = av_get_cpu_flags();
#if HAVE_ARMV6
if (have_setend(cpu_flags))
c->startcode_find_candidate = ff_startcode_find_candidate_armv6;
#endif
if (have_neon(cpu_flags))
h264dsp_init_neon(c, bit_depth, chroma_format_idc);
}

2
libavcodec/arm/vc1dsp_init_arm.c
View File

@ -28,8 +28,10 @@ av_cold void ff_vc1dsp_init_arm(VC1DSPContext *dsp)
{
int cpu_flags = av_get_cpu_flags();
#if HAVE_ARMV6
if (have_setend(cpu_flags))
dsp->startcode_find_candidate = ff_startcode_find_candidate_armv6;
#endif
if (have_neon(cpu_flags))
ff_vc1dsp_init_neon(dsp);
}