안녕하십니까?
1. 교재의 내용대로 ffmpeg 0.10.2와 Android.mk를 다운 빌드 하였으나
avcodec과 avutil쪽에 링크에러가 여럿이 나와 몇개의 파일을 첨부하였습니다.
그랬더니 빌드가 끝나 보니
out/target/product/odroidx/obj/lib 에는libffmpeg 만 있고
out/target/product/odroidx/system/lib 에는 libffmpeg.so 생성이 되었습니다.
out/target/product/odroidx/obj/lib 에 libffmpeg.so 로 만들어지지 않은 이유는 무엇인가요?
2. 어쨌든 위에 만들어진 libffmpeg.so 를 가지고
hoffplay를 빌드하니 다음과 같은 메시지가 나왔습니다.
root@ubuntu:/media/dev_linux/Hardkernel/4412_a32/android/external/hoffplay# mm
============================================
PLATFORM_VERSION_CODENAME=REL
PLATFORM_VERSION=4.0.4
TARGET_PRODUCT=odroidx
TARGET_BUILD_VARIANT=eng
TARGET_BUILD_TYPE=release
TARGET_BUILD_APPS=
TARGET_ARCH=arm
TARGET_ARCH_VARIANT=armv7-a-neon
HOST_ARCH=x86
HOST_OS=linux
HOST_BUILD_TYPE=release
BUILD_ID=IMM76L
============================================
make: Entering directory `/media/dev_linux/Hardkernel/4412_a32/android'
target thumb C++: libhoffplay <= external/hoffplay/hoplayer_core/audioflinger_wrapper.cpp
target thumb C++: libhoffplay <= external/hoffplay/hoplayer_core/surfaceflinger_wrapper.cpp
target thumb C: libhoffplay <= external/hoffplay/hoplayer_core/hoffplay.c
external/hoffplay/hoplayer_core/hoffplay.c:31: warning: initialization makes integer from pointer without a cast
external/hoffplay/hoplayer_core/hoffplay.c: In function 'decode_audio':
external/hoffplay/hoplayer_core/hoffplay.c:108: warning: 'avcodec_decode_audio3' is deprecated (declared at external/ffmpeg/libavcodec/avcodec.h:3658)
external/hoffplay/hoplayer_core/hoffplay.c:108: warning: passing argument 2 of 'avcodec_decode_audio3' from incompatible pointer type
external/ffmpeg/libavcodec/avcodec.h:3658: note: expected 'int16_t *' but argument is of type 'uint8_t *'
external/hoffplay/hoplayer_core/hoffplay.c: In function 'engine_start':
external/hoffplay/hoplayer_core/hoffplay.c:212: warning: passing argument 4 of 'avformat_open_input' from incompatible pointer type
external/ffmpeg/libavformat/avformat.h:1335: note: expected 'struct AVDictionary **' but argument is of type 'struct AVDictionary *'
external/hoffplay/hoplayer_core/hoffplay.c:218: warning: 'av_find_stream_info' is deprecated (declared at external/ffmpeg/libavformat/avformat.h:1357)
external/hoffplay/hoplayer_core/hoffplay.c:226: warning: comparison between signed and unsigned integer expressions
external/hoffplay/hoplayer_core/hoffplay.c:274: warning: 'avcodec_open' is deprecated (declared at external/ffmpeg/libavcodec/avcodec.h:3380)
external/hoffplay/hoplayer_core/hoffplay.c:296: warning: 'avcodec_open' is deprecated (declared at external/ffmpeg/libavcodec/avcodec.h:3380)
external/hoffplay/hoplayer_core/hoffplay.c:338: warning: passing argument 2 of 'sws_scale' from incompatible pointer type
external/ffmpeg/libswscale/swscale.h:237: note: expected 'const uint8_t * const*' but argument is of type 'uint8_t **'
external/hoffplay/hoplayer_core/hoffplay.c:341: warning: pointer targets in passing argument 1 of 'hovideo_post' differ in signedness
external/hoffplay/hoplayer_core/surfaceflinger_wrapper.h:11: note: expected 'char *' but argument is of type 'uint8_t *'
external/hoffplay/hoplayer_core/hoffplay.c:341: warning: pointer targets in passing argument 2 of 'hovideo_post' differ in signedness
external/hoffplay/hoplayer_core/surfaceflinger_wrapper.h:11: note: expected 'char *' but argument is of type 'uint8_t *'
external/hoffplay/hoplayer_core/hoffplay.c:341: warning: pointer targets in passing argument 3 of 'hovideo_post' differ in signedness
external/hoffplay/hoplayer_core/surfaceflinger_wrapper.h:11: note: expected 'char *' but argument is of type 'uint8_t *'
external/hoffplay/hoplayer_core/hoffplay.c:362: warning: 'av_close_input_file' is deprecated (declared at external/ffmpeg/libavformat/avformat.h:1533)
target thumb C: libhoffplay <= external/hoffplay/hoplayer_core/hoffplayjni.c
external/hoffplay/hoplayer_core/hoffplayjni.c: In function 'Java_net_hybridego_mm_hoffplay_HoffplayActivity_createStreamingMediaPlayer':
external/hoffplay/hoplayer_core/hoffplayjni.c:26: warning: passing argument 1 of 'engine_start' discards qualifiers from pointer target type
external/hoffplay/hoplayer_core/hoffplayjni.c:18: note: expected 'char *' but argument is of type 'const char *'
external/hoffplay/hoplayer_core/hoffplayjni.c: In function 'Java_net_hybridego_mm_hoffplay_HoffplayActivity_setSurface':
external/hoffplay/hoplayer_core/hoffplayjni.c:43: warning: implicit declaration of function 'ANativeWindow_fromSurface'
external/hoffplay/hoplayer_core/hoffplayjni.c:43: warning: assignment makes pointer from integer without a cast
target SharedLib: libhoffplay (out/target/product/odroidx/obj/SHARED_LIBRARIES/libhoffplay_intermediates/LINKED/libhoffplay.so)
prebuilt/linux-x86/toolchain/arm-linux-androideabi-4.4.x/bin/../lib/gcc/arm-linux-androideabi/4.4.3/../../../../arm-linux-androideabi/bin/ld: out/target/product/odroidx/obj/SHARED_LIBRARIES/libhoffplay_intermediates/hoffplay.o: in function engine_start:external/hoffplay/hoplayer_core/hoffplay.c:332: error: undefined reference to 'sws_getContext'
prebuilt/linux-x86/toolchain/arm-linux-androideabi-4.4.x/bin/../lib/gcc/arm-linux-androideabi/4.4.3/../../../../arm-linux-androideabi/bin/ld: out/target/product/odroidx/obj/SHARED_LIBRARIES/libhoffplay_intermediates/hoffplay.o: in function engine_start:external/hoffplay/hoplayer_core/hoffplay.c:338: error: undefined reference to 'sws_scale'
prebuilt/linux-x86/toolchain/arm-linux-androideabi-4.4.x/bin/../lib/gcc/arm-linux-androideabi/4.4.3/../../../../arm-linux-androideabi/bin/ld: out/target/product/odroidx/obj/SHARED_LIBRARIES/libhoffplay_intermediates/hoffplay.o: in function engine_start:external/hoffplay/hoplayer_core/hoffplay.c:364: error: undefined reference to 'sws_freeContext'
collect2: ld returned 1 exit status
make: *** [out/target/product/odroidx/obj/SHARED_LIBRARIES/libhoffplay_intermediates/LINKED/libhoffplay.so] Error 1
make: Leaving directory `/media/dev_linux/Hardkernel/4412_a32/android'
config.mak과 Android,mk의 설정으로 봐서는 이와 관련된 설정이나 파일들은 정상적으로 되어 있는거 같은데요.
왜 그런걸까요?
config.mk에서
LDFLAGS= -L/usr/lib -nostdlib -Wl,--as-needed -Wl,--warn-common -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
..
NOREDZONE_FLAGS=
libavcodec_VERSION=54.23.100
libavcodec_VERSION_MAJOR=54
libavdevice_VERSION=54.0.100
libavdevice_VERSION_MAJOR=54
libavfilter_VERSION=2.77.100
libavfilter_VERSION_MAJOR=2
libavformat_VERSION=54.6.100
libavformat_VERSION_MAJOR=54
libavresample_VERSION=0.0.2
libavresample_VERSION_MAJOR=0
libavutil_VERSION=51.54.100
libavutil_VERSION_MAJOR=51
libpostproc_VERSION=52.0.100
libpostproc_VERSION_MAJOR=52
libswresample_VERSION=0.15.100
libswresample_VERSION_MAJOR=0
libswscale_VERSION=2.1.100
libswscale_VERSION_MAJOR=2
..
CONFIG_SWRESAMPLE=yes
CONFIG_SWSCALE=yes
CONFIG_SWSCALE_ALPHA=yes
..
으로 되어 있습니다.
3. 기존 다른용도로 빌드해놓은 libffmpeg.so 를 lib에 복사 해 넣은 후 hoffplay를 빌드하여 실행하니
이클립스에서 다음과 같이 나오고 죽었습니다.
01-01 00:13:16.245: D/dalvikvm(2022): Trying to load lib /data/data/net.hybridego.mm.hoffplay/lib/libhoffplay.so 0x41315a68
01-01 00:13:16.285: D/dalvikvm(2022): Added shared lib /data/data/net.hybridego.mm.hoffplay/lib/libhoffplay.so 0x41315a68
01-01 00:13:16.285: D/dalvikvm(2022): No JNI_OnLoad found in /data/data/net.hybridego.mm.hoffplay/lib/libhoffplay.so 0x41315a68, skipping init
01-01 00:13:16.345: D/libEGL(2022): loaded /system/lib/egl/libEGL_mali.so
01-01 00:13:16.350: D/libEGL(2022): loaded /system/lib/egl/libGLESv1_CM_mali.so
01-01 00:13:16.350: D/libEGL(2022): loaded /system/lib/egl/libGLESv2_mali.so
01-01 00:13:16.355: D/(2022): Device driver API match
01-01 00:13:16.355: D/(2022): Device driver API version: 10
01-01 00:13:16.355: D/(2022): User space API version: 10
01-01 00:13:16.355: D/(2022): mali: REVISION=Linux-r2p4-02rel0 BUILD_DATE=Wed Jul 4 09:25:47 KST 2012
01-01 00:13:16.400: D/OpenGLRenderer(2022): Enabling debug mode 0
01-01 00:13:34.190: E/HoFFPLAYJ(2022): START !
01-01 00:13:34.190: E/HoFFPLAYJNI(2022): Java_net_hybridego_mm_hoffplay_HoffplayActivity_createStreamingMediaPlayer(22): Call createStreamingMediaPlayer
01-01 00:13:34.190: E/HoFFPLAYJNI(2022): Java_net_hybridego_mm_hoffplay_HoffplayActivity_createStreamingMediaPlayer(25): file name : /mnt/ext_sd/nm.ts
01-01 00:13:34.605: E/HoFFPLAYengin(2022): engine_start(246): sample_rate : 44100
01-01 00:13:34.605: E/HoFFPLAYengin(2022): engine_start(247): channels : 2
01-01 00:13:34.605: E/HoFFPLAYAudio(2022): audioflinger_device_create(56): Create AudioTrack successfully
01-01 00:13:34.605: E/HoFFPLAYAudio(2022): audioflinger_device_set(98): Set AudioTrack, status: 0, streamType: 3, sampleRate: 44100, channelCount: 2, bufferCount: 16384
01-01 00:13:34.605: E/HoFFPLAYengin(2022): engine_start(262): frame count: 16384, frame size: 4
01-01 00:13:34.615: A/libc(2022): Fatal signal 11 (SIGSEGV) at 0x00000058 (code=1)
비디오코덱쪽에 문제가 있는걸까요?
제가 여기 게시판에 올린 ffmpeg과 hoffplay 소스로 다시 확인해보았는데 잘 동작을 하네요.
올려주신 로그로는 어디가 문제인지 잘 모르겠어요..... ^_^a;;;;