From patchwork Fri Mar 27 08:29:02 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benjamin Gaignard X-Patchwork-Id: 6104191 Return-Path: X-Original-To: patchwork-linux-media@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 36622BF90F for ; Fri, 27 Mar 2015 08:29:30 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id C06FD20412 for ; Fri, 27 Mar 2015 08:29:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1E4BA203F7 for ; Fri, 27 Mar 2015 08:29:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753340AbbC0I3I (ORCPT ); Fri, 27 Mar 2015 04:29:08 -0400 Received: from mail-la0-f46.google.com ([209.85.215.46]:34045 "EHLO mail-la0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752580AbbC0I3E (ORCPT ); Fri, 27 Mar 2015 04:29:04 -0400 Received: by lagg8 with SMTP id g8so64758745lag.1 for ; Fri, 27 Mar 2015 01:29:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:date:message-id:subject:from:to:cc :content-type; bh=6C2TsR+qCpGlkudkKsmEAcqniElk93qDMzTIMGFintE=; b=crU3psMwur6YXhwDVB6lTyj51q8oy0kmnJeUJZrFMaNCwzDrUblLXN0HnWu2km8S3t E49c1nBAkRbOcrz9ED6RRblxyUvDvfmln4ZpCqSzFvTkpoZJQ0PJ0z/T0poO3B53CR3b tDdL1pMwCooI+Lh5NTwVgYPzQudNxILSp/P3GnSqlvXnH1Uh8te3Dqj0mYf031c7Tv1M f6Rh4hF6+g5dXyArPl1OgorUU70zSJc2OxQv9OIFHOn3/3NlfnIYfHZ1EwXcsOAvc6MW K3klxXrnthXZykb/76EUbRXs2qoDmiWic40YKPN28WstC/DRCNEegjRihjgroQAsdpoa zkUQ== X-Gm-Message-State: ALoCoQllbHJnbuVuppgZBMfXGCBCGdJFrdEbg3Uv3YeXIqMmYrAs9CkgHAhvOaY0y98SlpBZtfaV MIME-Version: 1.0 X-Received: by 10.112.155.65 with SMTP id vu1mr16748330lbb.61.1427444943056; Fri, 27 Mar 2015 01:29:03 -0700 (PDT) Received: by 10.25.1.198 with HTTP; Fri, 27 Mar 2015 01:29:02 -0700 (PDT) Date: Fri, 27 Mar 2015 09:29:02 +0100 Message-ID: Subject: [PATCH] add Android makefile for libv4l2 and libv4lconvert From: Benjamin Gaignard To: "linux-media@vger.kernel.org" Cc: Paramanand Singh Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Hello, On behalf of Paramanand, I would have to have your opinion on this patch. The goal is to enable more v4l2 lib features on Android to be able to do video decoding using v4l2 devices. Regards, Benjamin commit 85f40dcc5248b5fb03464fe25fd2d1acb30f9722 Author: Paramanand SINGH Date: Wed Mar 11 15:41:28 2015 +0530 libv4l2: Changes for compilation in Android 5.0 Added Android makefiles for libv4l2 and libv4lconvert. Minor changes to include android-config.h. Changed the plugin loading mechanism to avoid using unsupported glob.h header. Current mechanism supports a list of plugin search paths including /system/lib and /vendor/lib. Signed-off-by: Paramanand Singh --- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/android-config.h b/android-config.h index f474330..9f12b8f 100644 --- a/android-config.h +++ b/android-config.h @@ -1,3 +1,5 @@ +#ifndef __V4L_ANDROID_CONFIG_H__ +#define __V4L_ANDROID_CONFIG_H__ /* config.h. Generated from config.h.in by configure. */ /* config.h.in. Generated from configure.ac by autoheader. */ @@ -358,3 +360,4 @@ getsubopt (char **optionp, char *const *tokens, char **valuep) return -1; } +#endif diff --git a/lib/Android.mk b/lib/Android.mk new file mode 100644 index 0000000..2e43120 --- /dev/null +++ b/lib/Android.mk @@ -0,0 +1,4 @@ +LOCAL_PATH:= $(call my-dir) +include $(CLEAR_VARS) + +include $(call all-makefiles-under,$(LOCAL_PATH)) diff --git a/lib/libv4l2/Android.mk b/lib/libv4l2/Android.mk new file mode 100644 index 0000000..7d723fb --- /dev/null +++ b/lib/libv4l2/Android.mk @@ -0,0 +1,31 @@ +LOCAL_PATH:= $(call my-dir) + +include $(CLEAR_VARS) + +LOCAL_SRC_FILES := \ + log.c \ + libv4l2.c \ + v4l2convert.c \ + v4l2-plugin-android.c + +LOCAL_CFLAGS += -Wno-missing-field-initializers +LOCAL_CFLAGS += -Wno-sign-compare + +LOCAL_C_INCLUDES := \ + $(LOCAL_PATH)/../include \ + $(LOCAL_PATH)/../../include \ + $(LOCAL_PATH)/../.. \ + $(TOP)/bionic/libc/upstream-openbsd/lib/libc/gen + +LOCAL_SHARED_LIBRARIES := \ + libutils \ + libcutils \ + libdl \ + libssl \ + libz + +LOCAL_STATIC_LIBRARIES := libv4l_convert +LOCAL_MODULE := libv4l2 +LOCAL_MODULE_TAGS := optional + +include $(BUILD_SHARED_LIBRARY) diff --git a/lib/libv4l2/libv4l2.c b/lib/libv4l2/libv4l2.c index 966a000..70a6fd2 100644 --- a/lib/libv4l2/libv4l2.c +++ b/lib/libv4l2/libv4l2.c @@ -55,7 +55,11 @@ When modifications are made, one should be careful that this behavior is preserved. */ +#ifdef ANDROID +#include +#else #include +#endif #include #include #include diff --git a/lib/libv4l2/log.c b/lib/libv4l2/log.c index d1042ed..9d3eab1 100644 --- a/lib/libv4l2/log.c +++ b/lib/libv4l2/log.c @@ -18,7 +18,11 @@ # Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA */ +#ifdef ANDROID +#include +#else #include +#endif #include #include #include diff --git a/lib/libv4l2/v4l2-plugin-android.c b/lib/libv4l2/v4l2-plugin-android.c new file mode 100644 index 0000000..af7f4ae --- /dev/null +++ b/lib/libv4l2/v4l2-plugin-android.c @@ -0,0 +1,153 @@ +/* +* Copyright (C) 2010 Nokia Corporation + +* This program is free software; you can redistribute it and/or modify +* it under the terms of the GNU Lesser General Public License as published by +* the Free Software Foundation; either version 2.1 of the License, or +* (at your option) any later version. +* +* This program is distributed in the hope that it will be useful, +* but WITHOUT ANY WARRANTY; without even the implied warranty of +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +* Lesser General Public License for more details. +* +* You should have received a copy of the GNU Lesser General Public License +* along with this program; if not, write to the Free Software +* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +*/ + +#ifdef ANDROID +#include +#else +#include +#endif +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "libv4l2.h" +#include "libv4l2-priv.h" +#include "libv4l-plugin.h" + +/* libv4l plugin support: + it is provided by functions v4l2_plugin_[open,close,etc]. + + When open() is called libv4l dlopens files in /usr/lib[64]/libv4l/plugins + 1 at a time and call open callback passing through the applications + parameters unmodified. + + If a plugin is relevant for the specified device node, it can indicate so + by returning a value other then -1 (the actual file descriptor). + As soon as a plugin returns another value then -1 plugin loading stops and + information about it (fd and corresponding library handle) is stored. For + each function v4l2_[ioctl,read,close,etc] is called corresponding + v4l2_plugin_* function which looks if there is loaded plugin for that file + and call it's callbacks. + + v4l2_plugin_* function indicates by it's first argument if plugin was used, + and if it was not then v4l2_* functions proceed with their usual behavior. +*/ + +/* list of plugin search paths */ +static const char *g_plugin_search_paths[] = { + "/system/lib/libv4l/plugins", + "/vendor/lib/libv4l/plugins", + NULL /* list terminator */ +}; + +void v4l2_plugin_init(int fd, void **plugin_lib_ret, void **plugin_priv_ret, + const struct libv4l_dev_ops **dev_ops_ret) +{ + char *error; + void *plugin_library = NULL; + const struct libv4l_dev_ops *libv4l2_plugin = NULL; + DIR *plugin_dir = NULL; + struct dirent *entry; + char *suffix = NULL; + int length, i; + char filename[256]; + + /* initialize output params */ + *dev_ops_ret = v4lconvert_get_default_dev_ops(); + *plugin_lib_ret = NULL; + *plugin_priv_ret = NULL; + + /* read the plugin directory for "*.so" files */ + for (i = 0; g_plugin_search_paths[i] != NULL; i++) { + plugin_dir = opendir(g_plugin_search_paths[i]); + if (plugin_dir == NULL) { + V4L2_LOG_ERR("PLUGIN: opening plugin directory (%s) failed\n", + g_plugin_search_paths[i]); + continue; + } + + while (entry = readdir(plugin_dir)) { + /* get last 3 letter suffix from the filename */ + length = strlen(entry->d_name); + if (length > 3) + suffix = entry->d_name + (length - 3); + + if (!suffix || strcmp(suffix, ".so")) { + suffix = NULL; /* reset for next iteration */ + continue; + } + + /* load library and get desired symbol */ + sprintf(filename, "%s/%s", g_plugin_search_paths[i], entry->d_name); + V4L2_LOG("PLUGIN: dlopen(%s);\n", filename); + plugin_library = dlopen(filename, RTLD_LAZY); + if (!plugin_library) + continue; + + dlerror(); /* Clear any existing error */ + libv4l2_plugin = (struct libv4l_dev_ops *) + dlsym(plugin_library, "libv4l2_plugin"); + error = dlerror(); + if (error != NULL) { + V4L2_LOG_ERR("PLUGIN: dlsym failed: %s\n", error); + dlclose(plugin_library); + continue; + } + + if (!libv4l2_plugin->init || + !libv4l2_plugin->close || + !libv4l2_plugin->ioctl) { + V4L2_LOG("PLUGIN: does not have all mandatory ops\n"); + dlclose(plugin_library); + continue; + } + + *plugin_priv_ret = libv4l2_plugin->init(fd); + if (!*plugin_priv_ret) { + V4L2_LOG("PLUGIN: plugin open() returned NULL\n"); + dlclose(plugin_library); + continue; + } + + /* exit loop when a suitable plugin is found */ + *plugin_lib_ret = plugin_library; + *dev_ops_ret = libv4l2_plugin; + break; + } + closedir(plugin_dir); + + /* exit loop when a suitable plugin is found */ + if (*plugin_lib_ret && *plugin_priv_ret && *dev_ops_ret) + break; + } +} + +void v4l2_plugin_cleanup(void *plugin_lib, void *plugin_priv, + const struct libv4l_dev_ops *dev_ops) +{ + if (plugin_lib) { + dev_ops->close(plugin_priv); + dlclose(plugin_lib); + } +} diff --git a/lib/libv4l2/v4l2convert.c b/lib/libv4l2/v4l2convert.c index 9b46ab8..d046834 100644 --- a/lib/libv4l2/v4l2convert.c +++ b/lib/libv4l2/v4l2convert.c @@ -25,7 +25,11 @@ #define _LARGEFILE64_SOURCE 1 +#ifdef ANDROID +#include +#else #include +#endif #include #include #include @@ -111,6 +115,7 @@ LIBV4L_PUBLIC int open64(const char *file, int oflag, ...) } #endif +#ifndef ANDROID LIBV4L_PUBLIC int close(int fd) { return v4l2_close(fd); @@ -156,4 +161,4 @@ LIBV4L_PUBLIC int munmap(void *start, size_t length) { return v4l2_munmap(start, length); } - +#endif diff --git a/lib/libv4lconvert/Android.mk b/lib/libv4lconvert/Android.mk new file mode 100644 index 0000000..99a136b --- /dev/null +++ b/lib/libv4lconvert/Android.mk @@ -0,0 +1,53 @@ +LOCAL_PATH:= $(call my-dir) + +include $(CLEAR_VARS) + +LOCAL_SRC_FILES := \ + bayer.c \ + cpia1.c \ + crop.c \ + flip.c \ + helper.c \ + hm12.c \ + jidctflt.c \ + jl2005bcd.c \ + jpeg.c \ + jpeg_memsrcdest.c \ + jpgl.c \ + libv4lconvert.c \ + mr97310a.c \ + pac207.c \ + rgbyuv.c \ + se401.c \ + sn9c10x.c \ + sn9c2028-decomp.c \ + sn9c20x.c \ + spca501.c \ + spca561-decompress.c \ + sq905c.c \ + stv0680.c \ + tinyjpeg.c \ + control/libv4lcontrol.c \ + processing/autogain.c \ + processing/gamma.c \ + processing/libv4lprocessing.c \ + processing/whitebalance.c \ + +LOCAL_CFLAGS += -Wno-missing-field-initializers +LOCAL_CFLAGS += -Wno-sign-compare + +LOCAL_C_INCLUDES := \ + $(LOCAL_PATH)/../include \ + $(LOCAL_PATH)/../../include \ + $(LOCAL_PATH)/../.. \ + +LOCAL_SHARED_LIBRARIES := \ + libutils \ + libcutils \ + libdl \ + libz + +LOCAL_MODULE := libv4l_convert +LOCAL_MODULE_TAGS := optional + +include $(BUILD_STATIC_LIBRARY) diff --git a/lib/libv4lconvert/control/libv4lcontrol.c b/lib/libv4lconvert/control/libv4lcontrol.c index 325616c..74102d9 100644 --- a/lib/libv4lconvert/control/libv4lcontrol.c +++ b/lib/libv4lconvert/control/libv4lcontrol.c @@ -362,7 +362,7 @@ static int v4lcontrol_get_usb_info(struct v4lcontrol_data *data, int *speed) { FILE *f; - int i, minor; + int i, minor_dev; struct stat st; char sysfs_name[512]; char c, *s, buf[32]; @@ -388,8 +388,8 @@ static int v4lcontrol_get_usb_info(struct v4lcontrol_data *data, s = fgets(buf, sizeof(buf), f); fclose(f); - if (s && sscanf(buf, "%*d:%d%c", &minor, &c) == 2 && - c == '\n' && minor == minor(st.st_rdev)) + if (s && sscanf(buf, "%*d:%d%c", &minor_dev, &c) == 2 && + c == '\n' && minor_dev == minor(st.st_rdev)) break; } if (i == 256) @@ -716,6 +716,7 @@ struct v4lcontrol_data *v4lcontrol_create(int fd, void *dev_ops_priv, if (shm_name[i] == '/') shm_name[i] = '-'; +#ifndef ANDROID /* Open the shared memory object identified by shm_name */ shm_fd = shm_open(shm_name, (O_CREAT | O_EXCL | O_RDWR), (S_IREAD | S_IWRITE)); if (shm_fd >= 0) @@ -738,6 +739,7 @@ struct v4lcontrol_data *v4lcontrol_create(int fd, void *dev_ops_priv, } } else perror("libv4lcontrol: error creating shm segment failed"); +#endif /* Fall back to malloc */ if (data->shm_values == NULL) { diff --git a/lib/libv4lconvert/jl2005bcd.c b/lib/libv4lconvert/jl2005bcd.c index 14171a1..5a29830 100644 --- a/lib/libv4lconvert/jl2005bcd.c +++ b/lib/libv4lconvert/jl2005bcd.c @@ -23,7 +23,11 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ -#include +#ifdef ANDROID +#include +#else +#include +#endif #include #include diff --git a/lib/libv4lconvert/jpeg.c b/lib/libv4lconvert/jpeg.c index 0142d44..15f8dec 100644 --- a/lib/libv4lconvert/jpeg.c +++ b/lib/libv4lconvert/jpeg.c @@ -16,7 +16,11 @@ # Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA */ +#ifdef ANDROID +#include +#else #include +#endif #include #include #include "libv4lconvert-priv.h" diff --git a/lib/libv4lconvert/jpeg_memsrcdest.c b/lib/libv4lconvert/jpeg_memsrcdest.c index b70af8e..323e7af 100644 --- a/lib/libv4lconvert/jpeg_memsrcdest.c +++ b/lib/libv4lconvert/jpeg_memsrcdest.c @@ -16,7 +16,11 @@ /* this is not a core library module, so it doesn't define JPEG_INTERNALS */ +#ifdef ANDROID +#include +#else #include +#endif #include #include diff --git a/lib/libv4lconvert/libv4lconvert-priv.h b/lib/libv4lconvert/libv4lconvert-priv.h index ac1391e..c19bbd4 100644 --- a/lib/libv4lconvert/libv4lconvert-priv.h +++ b/lib/libv4lconvert/libv4lconvert-priv.h @@ -19,7 +19,11 @@ #ifndef __LIBV4LCONVERT_PRIV_H #define __LIBV4LCONVERT_PRIV_H +#ifdef ANDROID +#include +#else #include +#endif #include #include #include diff --git a/lib/libv4lconvert/libv4lconvert.c b/lib/libv4lconvert/libv4lconvert.c index e4aa54a..004dc72 100644 --- a/lib/libv4lconvert/libv4lconvert.c +++ b/lib/libv4lconvert/libv4lconvert.c @@ -16,7 +16,11 @@ # Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA */ +#ifdef ANDROID +#include +#else #include +#endif #include #include #include diff --git a/lib/libv4lconvert/libv4lsyscall-priv.h b/lib/libv4lconvert/libv4lsyscall-priv.h index cdd38bc..f548fb2 100644 --- a/lib/libv4lconvert/libv4lsyscall-priv.h +++ b/lib/libv4lconvert/libv4lsyscall-priv.h @@ -36,7 +36,7 @@ #ifdef linux #include -#include +#include #include #include /* On 32 bits archs we always use mmap2, on 64 bits archs there is no mmap2 */ @@ -62,6 +62,10 @@ typedef off_t __off_t; #endif +#if defined(ANDROID) +typedef off_t __off_t; +#endif + #undef SYS_OPEN #undef SYS_CLOSE #undef SYS_IOCTL