To celebrate the success of Android video collection + h264 Encoding

The encoder uses the x264 open-source library,

 

Easy to understand

A jni library is encapsulated

 

The csdn resources of the encoding library in BBS are too difficult to use.

Http://www.eoeandroid.com/forum.php? MoD = viewthread & tid = 52739 & extra =

 

Compilation and release method of x264

 

Export arm_root = $ android_ndk_root
Export arm_inc = $ arm_root/build/platforms/Android-5/arch-arm/usr/include/
Export arm_lib = $ arm_root/build/platforms/Android-5/arch-arm/usr/lib/
Export arm_tool = $ arm_root/build/prebuilt/Windows/arm-eabi-4.4.0.
Export arm_libo = $ arm_tool/lib/GCC/ARM-Eabi/4.4.0
Export Path = $ arm_tool/bin: $ path
Export arm_pre = arm-Eabi

./Configure -- prefix =/home/egmkang/libx264 -- enable-shared/
-Disable-ASM -- Host = arm-Linux -- Cross-Prefix = arm-Eabi -/
-- Extra-cflags = "-I $ arm_inc-FPIC-dandroid-FPIC-mthumb-interwork-ffunction-sections-funwind-tables-fstack-protector-fno-short-enums-d__arm_arch_5 _-blank _-d1_arm_arch_5e _-d1_arm_arch_5te _-wno-psabi-March = armv5te-mtune = XScale-msoft-float-mthumb-OS-fomit-frame-pointer -fno-strict-aliasing-Finline-Limit = 64-dandroid-wa, -- noexecstack-MMD-MP "/
-- Extra-ldflags = "-nostdlib-bdynamic-wl, -- no-undefined-wl,-Z, noexecstack-wl,-Z, nocopyreloc-wl,-soname, /system/lib/libz. so-wl,-rpath-link = $ arm_lib, -Dynamic-linker =/system/bin/linker-L $ arm_lib-nostdlib $ arm_lib/crtbegin_dynamic.o $ arm_lib/crtend_android.o-LC-lm-LDL-lgcc"

Here the static library x264 is generated.

 

The only trouble for the entire project is that an error is reported when a JNI dynamic library is generated ..

 

Later, I found that a library is missing,

Therefore, you can add some configuration in Android. mk according to the compilation method of x264. Of course, this is a difficult issue. I found a lot on the Internet and found no results.

 

Modify the parameters of some directories.

I put the previously generated libx264.a and x264.h files in the libx264 directory of JNI. If you have any questions, please adjust them.

 

Local_path: = $ (call my-DIR)

Include $ (clear_vars)
Local_c_includes + = $ (local_path)/libx264/include
Local_module: = hsf-android
Local_src_files: = hsf-android. c
Local_ldflags + = $ (local_path)/libx264/lib/libx264.a
Local_ldlibs: =-L $ (sysroot)/usr/lib-lgcc

Include $ (build_shared_library)

 

 

 

It is estimated that many people will find that they are very familiar with this.

Http://www.cnblogs.com/mcodec/articles/1780598.html

The file name has not been changed !! Relatively lazy

 

 

 

In addition, the encoding efficiency is very low.

 

 

Androidvideo. Java

Import Java. io. file; <br/> Import Java. io. randomaccessfile; <br/> Import android. app. activity; <br/> Import android. content. intent; <br/> Import android. OS. bundle; <br/> Import android. view. view; <br/> Import android. content. res. configuration; <br/> Import android. OS. bundle; <br/> Import android. util. log; <br/> Import android. view. surfaceholder; <br/> Import android. view. surfaceview; <br/> Import android. view. Window; <br/> Import android. view. windowmanager; <br/> Import android. view. surfaceholder. callback; <br/> Import android. graphics. pixelformat; <br/> Import android. hardware. camera; <br/> public class androidvideo extends activity implements callback, <br/> camera. picturecallback {<br/> private surfaceview msurfaceview = NULL; <br/> private surfaceholder msurfaceholder = NULL; <br/> private camera mcamera = NULL; <br/> private Boolean mpreviewrunning = false; <br/> Public void oncreate (bundle savedinstancestate) {<br/> super. oncreate (savedinstancestate); <br/> getwindow (). setformat (pixelformat. translucent); <br/> requestwindowfeature (window. feature_no_title); <br/> getwindow (). setflags (windowmanager. layoutparams. flag_fullscreen, <br/> windowmanager. layoutparams. flag_fullscreen); <br/> setcontentview (R. lay Out. camera); <br/> msurfaceview = (surfaceview) This. findviewbyid (R. id. surface_camera); <br/> msurfaceholder = msurfaceview. getholder (); <br/> msurfaceholder. addcallback (this); <br/> msurfaceholder. settype (surfaceholder. surface_type_push_buffers); <br/>}</P> <p> @ override <br/> Public void onpicturetaken (byte [] data, camera) {<br/>}< br/> @ override <br/> Public void surfacechanged (surfaceholder Ho Lder, int format, int width, <br/> int height) {<br/> If (mpreviewrunning) {<br/> mcamera. stoppreview (); <br/>}< br/> camera. parameters P = mcamera. getparameters (); <br/> P. setpreviewsize (352,288); <br/> mcamera. setpreviewcallback (New hsf-encoder (352,288); <br/> mcamera. setparameters (p); <br/> try {<br/> mcamera. setpreviewdisplay (holder); <br/>}catch (exception ex) {<br/>}< br/> mcamera. startpreview (); <Br/> mpreviewrunning = true; <br/>}< br/> @ override <br/> Public void surfacecreated (surfaceholder holder) {<br/> mcamera = camera. open (); <br/>}< br/> @ override <br/> Public void surfacedestroyed (surfaceholder holder) {<br/> If (mcamera! = NULL) {<br/> mcamera. setpreviewcallback (null); <br/> mcamera. stoppreview (); <br/> mpreviewrunning = false; <br/> mcamera. release (); <br/> mcamera = NULL; <br/>}< br/> Public void onconfigurationchanged (configuration newconfig) {<br/> try {<br/> super. onconfigurationchanged (newconfig); <br/> If (this. getresources (). getconfiguration (). orientation = configuration. orientation_landscape) {<br/>} el Se if (this. getresources (). getconfiguration (). orientation = configuration. orientation_portrait) {<br/>}< br/>} catch (exception ex) {<br/>}< br/> class hsf-encoder implements camera. previewcallback {<br/> long encoder = 0; <br/> randomaccessfile RAF = NULL; <br/> byte [] hsf-buff = NULL; <br/> static {<br/> system. loadlibrary ("hsf-android"); <br/>}< br/> private hsf-encoder () {}; </P> <p> Public Hsf-encoder (INT width, int height) {<br/> encoder = compressbegin (width, height); <br/> hsf-buff = new byte [width * height * 8]; <br/> try {<br/> file = new file ("/sdcard/camera. h264 "); <br/> RAF = new randomaccessfile (file," RW "); <br/>} catch (exception ex) {<br/> log. V ("system. out ", Ex. tostring (); <br/>}</P> <p >}; <br/> protected void finalize () <br/>{< br/> compressend (encoder); <br/> If (null! = RAF) <br/>{< br/> try {<br/> Raf. close (); <br/>}catch (exception ex) {<br/> log. V ("system. out ", Ex. tostring (); <br/>}< br/> try {<br/> super. finalize (); <br/>}catch (throwable e) {<br/> // todo auto-generated Catch Block <br/> E. printstacktrace (); <br/>}< br/> private native long compressbegin (INT width, int height ); <br/> private native int compressbuffer (long encoder, int type, byte [] In, int insize, byte [] Out ); <br/> private native int compressend (long encoder); <br/> @ override <br/> Public void onpreviewframe (byte [] data, camera) {</P> <p> int result = compressbuffer (encoder,-1, data, data. length, hsf-buff); <br/> try {<br/> If (result> 0) <br/> Raf. write (hsf-buff, 0, result); <br/>} catch (exception ex) {<br/> log. V ("system. out ", Ex. tostring (); <br/>}</P> <p>}

 

 

Hsf-android. c

# Include <string. h> <br/> # include <JNI. h> <br/> # include <stdio. h> <br/> # include <stdlib. h> <br/> # include <ARPA/inet. h> <br/> # include <x264.h> <br/> # define data_max 3000000 <br/> # define hsf-_mtu 1024 <br/> typestrudef CT <br/> {<br /> x1__param_t * Param; <br/> x264_t * handle; <br/> x264_picture_t * picture; <br/> x264_nal_t * nal; <br/>} encoder; <br/> jlong java_hsf-_com_hsf-encoder_compressbegin (jnienv * ENV, jobject thiz, <br/> jint width, jint height) {<br/> encoder * en = (encoder *) malloc (sizeof (encoder); <br/> en-> param = (x1__param_t *) malloc (sizeof (x1__param_t )); <br/> en-> picture = (x264_param_t *) malloc (sizeof (x264_picture_t); <br/> x264_param_default (En-> param ); // set default Param <br/> // en-> param-> RC. I _rc_method = x264_rc_cqp; <br/> en-> param-> I _log_level = x1__log_none; <br/> en-> param-> I _width = width; // set frame width <br/> en-> param-> I _height = height; // set frame height <br/> en-> param-> RC. I _lookahead = 0; <br/> en-> param-> I _bframe = 0; <br/> en-> param-> I _fps_num = 5; <br/> en-> param-> I _fps_den = 1; <br/> If (En-> handle = x264_encoder_open (En-> param) = 0) {<br/> return 0; <br/>}< br/>/* Create a new pic */<br/> x1__picture_alloc (En-> picture, x1__csp_i420, en-> param-> I _width, <br/> en-> param-> I _height); <br/> return (jlong) en; <br/>}< br/> jint java_h1__com_h1_encoder_compressend (jnienv * ENV, jobject thiz, jlong handle) <br/>{< br/> encoder * en = (encoder *) handle; <br/> If (En-> picture) <br/>{< br/> x__picture_clean (En-> picture ); <br/> free (En-> picture); <br/> en-> picture = 0; <br/>}< br/> If (En-> param) <br/>{< br/> free (En-> param); <br/> en-> param = 0; <br/>}< br/> If (En-> handle) <br/>{< br/> x1__encoder_close (En-> handle ); <br/>}< br/> free (en); <br/> return 0; <br/>}< br/> jint java_h1__com_h1_encoder_compressbuffer (jnienv * ENV, jobject thiz, jlong handle, jint type, jbytearray in, jint insize, jbytearray out) <br/>{< br/> encoder * en = (encoder *) handle; <br/> x264_picture_t pic_out; <br/> int I _data = 0; <br/> int NNAL =-1; <br/> int result = 0; <br/> int I = 0, j = 0; <br/> int npix = 0; <br/> jbyte * Buf = (jbyte *) (* env) -> getbytearrayelements (ENV, In, 0); <br/> jbyte * hsf-buf = (jbyte *) (* env)-> getbytearrayelements (ENV, out, 0 ); <br/> unsigned char * ptmpout = hsf-buf; <br/> int npicsize = en-> param-> I _width * En-> param-> I _height; <br/>/* <br/> Y data is all taken from the same block, UV data is stored in interleave mode <br/> yyyy <br/> uvuv <br/> */<br/> jbyte * Y = en-> picture-> IMG. plane [0]; <br/> jbyte * V = en-> picture-> IMG. plane [1]; <br/> jbyte * u = en-> picture-> IMG. plane [2]; <br/> memcpy (En-> picture-> IMG. plane [0], Buf, npicsize); <br/> for (I = 0; I <npicsize/4; I ++) <br/> {<br/> * (U + I) = * (BUF + npicsize + I * 2); <br/> * (V + I) = * (BUF + npicsize + I * 2 + 1); <br/>}< br/> switch (type) <br/>{< br/> case 0: <br/> en-> picture-> I _type = x1__type_p; <br/> break; <br/> case 1: <br/> en-> picture-> I _type = x1__type_idr; <br/> break; <br/> case 2: <br/> en-> picture-> I _type = x1__type_ I; <br/> break; <br/> default: <br/> en-> picture-> I _type = x1__type_auto; <br/> break; <br/>}< br/> If (x1__encoder_encode (En-> handle, & (En-> NAL), & NNAL, en-> picture, & pic_out) <0) <br/>{< br/> return-1; <br/>}< br/> for (I = 0; I <NNAL; I ++) {<br/> memcpy (ptmpout, en-> nal [I]. p_payload, en-> nal [I]. I _payload); <br/> ptmpout + = en-> nal [I]. I _payload; <br/> result + = en-> nal [I]. I _payload; <br/>}< br/> return result; <br/>}< br/>