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Android : How to play MP3 files with ID3 tags using FFMPEG
16 juillet 2012, par Vipul PurohitI am trying to play various sound files using FFMPEG lib in android. I have managed to play most files but some file
Example : MP3 files with ID3 tagare not playing. I tried playing files by taking reference of various example but didn't get any success.Here is my native side code :
#include
#include
#include
#include <android></android>log.h>
#include "libavcodec/avcodec.h"
#include "libavformat/avformat.h"
#define LOG_TAG "mylib"
#define LOGI(...) __android_log_print(ANDROID_LOG_INFO, LOG_TAG, __VA_ARGS__)
#define LOGE(...) __android_log_print(ANDROID_LOG_ERROR, LOG_TAG, __VA_ARGS__)
#define AUDIO_INBUF_SIZE 20480
#define AUDIO_REFILL_THRESH 4096
void Java_ru_dzakhov_ffmpeg_test_MainActivity_createEngine(JNIEnv* env, jclass clazz)
{
avcodec_init();
av_register_all();
}
jstring Java_ru_dzakhov_ffmpeg_test_MainActivity_loadFile(JNIEnv* env, jobject obj,jstring file,jbyteArray array)
{
{
jboolean isfilenameCopy;
const char * filename = (*env)->GetStringUTFChars(env, file, &isfilenameCopy);
int audioStreamIndex;
AVCodec *codec;
AVCodecContext *c= NULL;
AVFormatContext * pFormatCtx;
AVCodecContext * aCodecCtx;
int out_size, len, audioStream=-1, i, err;
FILE *f, *outfile;
uint8_t *outbuf;
uint8_t inbuf[AUDIO_INBUF_SIZE + FF_INPUT_BUFFER_PADDING_SIZE];
AVPacket avpkt;
jclass cls = (*env)->GetObjectClass(env, obj);
jmethodID play = (*env)->GetMethodID(env, cls, "playSound", "([BI)V");//At the begining of your main function
LOGE("source file name is %s", filename);
avcodec_init();
av_register_all();
LOGE("Stage 1");
/* get format somthing of source file to AVFormatContext */
int lError;
if ((lError = av_open_input_file(&pFormatCtx, filename, NULL, 0, NULL)) !=0 ) {
LOGE("Error open source file: %d", lError);
exit(1);
}
if ((lError = av_find_stream_info(pFormatCtx)) < 0) {
LOGE("Error find stream information: %d", lError);
exit(1);
}
LOGE("Stage 1.5");
LOGE("audio format: %s", pFormatCtx->iformat->name);
LOGE("audio bitrate: %d", pFormatCtx->bit_rate);
audioStreamIndex = av_find_best_stream(pFormatCtx, AVMEDIA_TYPE_AUDIO, -1, -1, &codec, 0);
// audioStreamIndex=-1;
// LOGE("nb_stream %d", pFormatCtx->nb_streams);
// for(i=0; inb_streams; i++)
// {
// LOGE("nb_stream %d", pFormatCtx->nb_streams);
// if(pFormatCtx->streams[i]->codec->codec_type==AVMEDIA_TYPE_AUDIO)
// {
// audioStream=i;
// break;
// }
// }
//
// if(audioStream==-1)
// {
// LOGE("Cannot find audio");
// }
LOGE("audioStreamIndex %d", audioStreamIndex);
// if (audioStreamIndex == AVERROR_STREAM_NOT_FOUND) {
// LOGE(1, "cannot find a audio stream");
// exit(1);
// } else if (audioStreamIndex == AVERROR_DECODER_NOT_FOUND) {
// LOGE(1, "audio stream found, but no decoder is found!");
// exit(1);
// }
LOGE("audio codec: %s", codec->name);
/* get codec somthing of audio stream to AVCodecContext */
aCodecCtx = pFormatCtx->streams[audioStreamIndex]->codec;
if (avcodec_open(aCodecCtx, codec) < 0) {
LOGE("cannot open the audio codec!");
exit(1);
}
printf("Audio decoding\n");
LOGE("Stage 1.7");
LOGE("S");
codec = avcodec_find_decoder(aCodecCtx->codec_id);
LOGE("Stage 1.8");
if (!codec) {
LOGE("codec not found\n");
exit(1);
}
LOGE("Stage 2");
// c= avcodec_alloc_context();
LOGE("Stage 3");
/* open it */
if (avcodec_open(aCodecCtx, codec) < 0) {
LOGE("could upper");
fprintf(stderr, "could not open codec\n");
LOGE("could not open codec");
}
LOGE("Stage 4");
outbuf = malloc(AVCODEC_MAX_AUDIO_FRAME_SIZE);
f = fopen(filename, "rb");
if (!f) {
fprintf(stderr, "could not open %s\n", filename);
LOGE("could not open");
exit(1);
}
/* decode until eof */
avpkt.data = inbuf;
avpkt.size = fread(inbuf, 1, AUDIO_INBUF_SIZE, f);
LOGE("Stage 5");
while (avpkt.size > 0) {
// LOGE("Stage 6");
out_size = (AVCODEC_MAX_AUDIO_FRAME_SIZE/3)*2;
len = avcodec_decode_audio3(aCodecCtx, (int16_t *)outbuf, &out_size, &avpkt);
LOGE("data_size %d len %d", out_size, len);
if (len < 0) {
fprintf(stderr, "Error while decoding\n");
LOGE("DECODING ERROR");
LOGE("DECODING ERROR %d", len);
exit(1);
}
// LOGE("Stage 7");
if (out_size > 0) {
/* if a frame has been decoded, output it */
// LOGE("Stage 8");
jbyte *bytes = (*env)->GetByteArrayElements(env, array, NULL);
memcpy(bytes, outbuf, out_size); //
(*env)->ReleaseByteArrayElements(env, array, bytes, 0);
(*env)->CallVoidMethod(env, obj, play, array, out_size);
// LOGE("DECODING ERROR5");
}
LOGE("Stage 9");
avpkt.size -= len;
avpkt.data += len;
if (avpkt.size < AUDIO_REFILL_THRESH) {
/* Refill the input buffer, to avoid trying to decode
* incomplete frames. Instead of this, one could also use
* a parser, or use a proper container format through
* libavformat. */
memmove(inbuf, avpkt.data, avpkt.size);
avpkt.data = inbuf;
len = fread(avpkt.data + avpkt.size, 1,
AUDIO_INBUF_SIZE - avpkt.size, f);
if (len > 0)
avpkt.size += len;
}
}
LOGE("Stage 12");
fclose(f);
free(outbuf);
avcodec_close(c);
av_free(c);
}
}Sorry for a rough code but I am testing on this code.
I found the reason that the mp3 file has ID3 info, but I don't handle this, all the ID3 info data is decode as frame data, so the right frame header sign 0xFFE00000 can't be found and the method "avcodec_decode_audio3" return -1.
I found this in question mp3 decoding using ffmpeg API (Header missing)
If anyone can help me handle and play file with ID3 tags in MP3 and similar for other formats.
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ffmpeg neon compilation on android - assembler errors
11 juillet 2012, par Android007I am trying to compile ffmpeg for android with neon support , but I am getting following assembler errors. Please let me know if anybody has any clue about this ?
/home/user1/android-ndk-r5b/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi-gcc -MMD -MP -MF /home/user1/workspace/FFMPEGFinal/obj/local/armeabi-v7a/objs/ffmpeg/libavcodec/arm/rdft_neon.o.d.org -fpic -ffunction-sections -funwind-tables -fstack-protector -D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5E__ -D__ARM_ARCH_5TE__ -Wno-psabi -march=armv7-a -mfloat-abi=softfp -mfpu=vfp -O2 -fomit-frame-pointer -fstrict-aliasing -funswitch-loops -finline-limit=300 -I/home/user1/workspace/FFMPEGFinal/jni/SDL/include -I/home/user1/workspace/FFMPEGFinal/jni -DANDROID -DHAVE_AV_CONFIG_H -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -DPIC -DCMP_HAVE_NEON -DCMP_HAVE_VFP -fasm -Wa,--noexecstack -O2 -DNDEBUG -g -I/home/user1/android-ndk-r5b/platforms/android-8/arch-arm/usr/include -c /home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S -o /home/user1/workspace/FFMPEGFinal/obj/local/armeabi-v7a/objs/ffmpeg/libavcodec/arm/rdft_neon.o && rm -f /home/user1/workspace/FFMPEGFinal/obj/local/armeabi-v7a/objs/ffmpeg/libavcodec/arm/rdft_neon.o.d && mv /home/user1/workspace/FFMPEGFinal/obj/local/armeabi-v7a/objs/ffmpeg/libavcodec/arm/rdft_neon.o.d.org /home/user1/workspace/FFMPEGFinal/obj/local/armeabi-v7a/objs/ffmpeg/libavcodec/arm/rdft_neon.o.d
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S: Assembler messages:
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:54: Error: bad instruction `vld1.32 {d0},[r0,:64]!'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:55: Error: bad instruction `vld1.32 {d1},[r1,:64],r8'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:56: Error: bad instruction `vld1.32 {d4},[r2,:64]!'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:57: Error: bad instruction `vld1.32 {d5},[r3,:64]!'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:58: Error: bad instruction `vmov.f32 d18,#0.5'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:59: Error: bad instruction `vdup.32 d19,r6'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:61: Error: selected processor does not support `veor d19,d18,d19'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:62: Error: bad instruction `vmov.i32 d16,#0'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:63: Error: bad instruction `vmov.i32 d17,#1<<31'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:65: Error: bad instruction `vtrn.32 d16,d17'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:67: Error: bad instruction `vrev64.32 d16,d16'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:70: Error: selected processor does not support `veor q1,q0,q8'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:71: Error: bad instruction `vld1.32 {d24},[r0,:64]!'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:72: Error: bad instruction `vadd.f32 d0,d0,d3'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:73: Error: bad instruction `vld1.32 {d25},[r1,:64],r8'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:74: Error: bad instruction `vadd.f32 d1,d2,d1'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:75: Error: selected processor does not support `veor q3,q12,q8'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:77: Error: bad instruction `vmul.f32 q10,q0,q9'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:79: Error: bad instruction `vadd.f32 d0,d24,d7'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:80: Error: bad instruction `vadd.f32 d1,d6,d25'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:81: Error: bad instruction `vmul.f32 q11,q0,q9'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:82: Error: selected processor does not support `veor d7,d21,d16'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:83: Error: bad instruction `vrev64.32 d3,d21'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:84: Error: selected processor does not support `veor d6,d20,d17'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:85: Error: selected processor does not support `veor d2,d3,d16'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:86: Error: bad instruction `vmla.f32 d20,d3,d4[1]'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:87: Error: bad instruction `vmla.f32 d20,d7,d5[1]'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:88: Error: bad instruction `vmla.f32 d6,d2,d4[1]'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:89: Error: bad instruction `vmla.f32 d6,d21,d5[1]'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:90: Error: bad instruction `vld1.32 {d4},[r2,:64]!'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:91: Error: selected processor does not support `veor d7,d23,d16'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:92: Error: bad instruction `vld1.32 {d5},[r3,:64]!'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:93: Error: selected processor does not support `veor d24,d22,d17'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:94: Error: bad instruction `vrev64.32 d3,d23'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:96: Error: selected processor does not support `veor d2,d3,d16'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:98: Error: bad instruction `vmla.f32 d22,d3,d4[0]'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:99: Error: bad instruction `vmla.f32 d22,d7,d5[0]'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:100: Error: bad instruction `vmla.f32 d24,d2,d4[0]'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:101: Error: bad instruction `vmla.f32 d24,d23,d5[0]'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:102: Error: bad instruction `vld1.32 {d0},[r0,:64]!'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:103: Error: bad instruction `vld1.32 {d1},[r1,:64],r8'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:104: Error: bad instruction `vst1.32 {d20},[r7,:64]!'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:105: Error: bad instruction `vst1.32 {d6},[lr,:64],r8'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:106: Error: bad instruction `vst1.32 {d22},[r7,:64]!'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:107: Error: bad instruction `vst1.32 {d24},[lr,:64],r8'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:111: Error: selected processor does not support `veor q1,q0,q8'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:112: Error: bad instruction `vadd.f32 d0,d0,d3'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:113: Error: bad instruction `vadd.f32 d1,d2,d1'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:115: Error: bad instruction `vmul.f32 q10,q0,q9'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:118: Error: bad instruction `vld1.32 {d0[0]},[r0,:32]'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:119: Error: selected processor does not support `veor d7,d21,d16'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:120: Error: bad instruction `vrev64.32 d3,d21'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:121: Error: selected processor does not support `veor d6,d20,d17'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:122: Error: bad instruction `vld1.32 {d22},[r5,:64]'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:123: Error: bad instruction `vdup.32 d1,r2'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:124: Error: selected FPU does not support instruction -- `vmov d23,d22'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:125: Error: selected processor does not support `veor d2,d3,d16'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:126: Error: bad instruction `vtrn.32 d22,d23'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:127: Error: selected processor does not support `veor d0,d0,d1'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:128: Error: selected processor does not support `veor d23,d23,d17'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:129: Error: bad instruction `vmla.f32 d20,d3,d4[1]'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:130: Error: bad instruction `vmla.f32 d20,d7,d5[1]'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:131: Error: bad instruction `vmla.f32 d6,d2,d4[1]'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:132: Error: bad instruction `vmla.f32 d6,d21,d5[1]'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:133: Error: bad instruction `vadd.f32 d22,d22,d23'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:134: Error: bad instruction `vst1.32 {d20},[r7,:64]'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:135: Error: bad instruction `vst1.32 {d6},[lr,:64]'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:136: Error: bad instruction `vst1.32 {d0[0]},[r0,:32]'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:137: Error: bad instruction `vst1.32 {d22},[r5,:64]'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:142: Error: bad instruction `vmul.f32 d22,d22,d18'
/home/user1/workspace/FFMPEGFinal/jni/libavcodec/arm/rdft_neon.S:143: Error: bad instruction `vst1.32 {d22},[r5,:64]'
make: *** [/home/user1/workspace/FFMPEGFinal/obj/local/armeabi-v7a/objs/ffmpeg/libavcodec/arm/rdft_neon.o] Error 1 -
Building ffmpeg for Android on Windows through MinGW
23 mai 2012, par HarishI'm trying to build ffmpeg for Android on Windows through MiNGW but facing the below problem :
AR libavcodec/libavcodec.a
LD ffmpeg_g.exe
LD ffplay_g.exe
LD ffprobe_g.exe
INSTALL libavcodec/libavcodec.a
CP ffmpeg.exe
STRIP ffmpeg.exe
CP ffprobe.exe
STRIP ffprobe.exe
CP ffplay.exe
STRIP ffplay.exe
INSTALL install-progs-yes
INSTALL ffmpeg.exe
INSTALL ffplay.exe
INSTALL ffprobe.exe
d:\android-ndk-r8\toolchains\arm-linux-androideabi-4.4.3\prebuilt\windows\bin\arm-linux-androideabi-ld.exe: cannot open output file ./android/armv7-a/libffmpeg.so: No such file or directory
libavcodec/tscc.c: In function 'decode_frame':
libavcodec/tscc.c:97:24: warning: assignment discards qualifiers from pointer target type
./libavcodec/avcodec.h:40:0: fatal error: when writing output to : Invalid argument
compilation terminated.
libavcodec/vc1dsp.c: In function 'ff_vc1dsp_init':This is my build script :
NDK=/d/android-ndk-r8
PLATFORM=$NDK/platforms/android-9/arch-arm/
PREBUILT=$NDK/toolchains/arm-linux-androideabi-4.4.3/prebuilt/windows
function build_one_r6
{
./configure \
--disable-shared \
--enable-static \
--enable-gpl \
--enable-version3 \
--enable-nonfree \
--disable-doc \
--disable-ffmpeg \
--disable-ffplay \
--disable-ffprobe \
--disable-ffserver \
--disable-avdevice \
--disable-avfilter \
--disable-postproc \
--enable-small \
--cross-prefix=$PREBUILT/bin/arm-linux-androideabi- \
--enable-cross-compile \
--target-os=linux \
--extra-cflags="-I$PLATFORM/usr/include" \
--extra-ldflags="-L$PLATFORM/usr/lib -nostdlib" \
--arch=arm \
--disable-symver \
--disable-debug \
--disable-stripping \
$ADDITIONAL_CONFIGURE_FLAG
sed -i 's/HAVE_LRINT 0/HAVE_LRINT 1/g' config.h
sed -i 's/HAVE_LRINTF 0/HAVE_LRINTF 1/g' config.h
sed -i 's/HAVE_ROUND 0/HAVE_ROUND 1/g' config.h
sed -i 's/HAVE_ROUNDF 0/HAVE_ROUNDF 1/g' config.h
sed -i 's/HAVE_TRUNC 0/HAVE_TRUNC 1/g' config.h
sed -i 's/HAVE_TRUNCF 0/HAVE_TRUNCF 1/g' config.h
make clean
make -j4 install
$PREBUILT/bin/arm-linux-androideabi-ar d libavcodec/libavcodec.a inverse.o
$PREBUILT/bin/arm-linux-androideabi-ld -rpath-link=$PLATFORM/usr/lib -L$PLATFORM/usr/lib - soname libffmpeg.so -shared -nostdlib -z,noexecstack -Bsymbolic --whole-archive --no- undefined -o $PREFIX/libffmpeg.so libavcodec/libavcodec.a libavformat/libavformat.a libavutil/libavutil.a libswscale/libswscale.a -lc -lm -lz -ldl -llog --warn-once --dynamic- linker=/system/bin/linker $PREBUILT/lib/gcc/arm-linux-androideabi/4.4.3/libgcc.a
}
CPU=armv7-a
OPTIMIZE_CFLAGS="-mfloat-abi=softfp -mfpu=vfpv3-d16 -marm -march=$CPU "
PREFIX=./android/$CPU
ADDITIONAL_CONFIGURE_FLAG=Any idea what I'm missing here ? Please note that I was able to build ffmpeg for Windows desktop successfully so I assume the setup is correct.
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