MT#54294 convert cudecs usage to plugin

*) Remove packaging for -gpu packages
*) Remove build profile restrictions, except for the build dependency
   itself
*) Remove script to generate dh fragments for -gpu packages
*) Convert --cudecs switch to a path argument pointing to the .so
*) Don't link against libcudecs during build
*) Only include the single types.h header needed for usage as a plugin
*) Resolve all symbols during startup after loading the .so

Change-Id: Ide99eec2156d5d3be8c40594391cb1603add4b16

debian/control

@@ -54,7 +54,6 @@ Testsuite: autopkgtest-pkg-dkms
 
 Package: ngcp-rtpengine-daemon
 Architecture: any
-Build-Profiles: <!pkg.ngcp-rtpengine.cudecs>
 Multi-Arch: foreign
 Recommends:
  ngcp-rtpengine-perftest,
@@ -76,7 +75,7 @@ Description: proxy for RTP and media streams used in NGCP, userspace part
 
 Package: ngcp-rtpengine-recording-daemon
 Architecture: any
-Build-Profiles: <!pkg.ngcp-rtpengine.cudecs !pkg.ngcp-rtpengine.no-transcoding>
+Build-Profiles: <!pkg.ngcp-rtpengine.no-transcoding>
 Multi-Arch: foreign
 Recommends:
  ngcp-rtpengine-utils,
@@ -102,7 +101,6 @@ Description: IPtables extension module for the kernel-space NGCP media proxy
 
 Package: ngcp-rtpengine
 Architecture: all
-Build-Profiles: <!pkg.ngcp-rtpengine.cudecs>
 Multi-Arch: foreign
 Depends:
  ngcp-rtpengine-daemon (>= ${source:Version}),
@@ -150,7 +148,7 @@ Description: scripts and Perl modules for NGCP rtpengine
 
 Package: ngcp-rtpengine-perftest
 Architecture: any
-Build-Profiles: <!pkg.ngcp-rtpengine.cudecs !pkg.ngcp-rtpengine.no-transcoding>
+Build-Profiles: <!pkg.ngcp-rtpengine.no-transcoding>
 Multi-Arch: foreign
 Depends:
  ngcp-rtpengine-perftest-data (= ${source:Version}),
@@ -172,91 +170,3 @@ Description: helper tool to test rtpengine transcoding performance - data files
  base and produces performance and load statistics.
  .
  These are data files needed for the binary package.
-
-Package: ngcp-rtpengine-daemon-gpu
-Architecture: any
-Build-Profiles: <pkg.ngcp-rtpengine.cudecs>
-Multi-Arch: foreign
-Conflicts:
- ngcp-rtpengine-daemon,
-Provides:
- ngcp-rtpengine-daemon,
-Recommends:
- ngcp-rtpengine-perftest-gpu,
- ngcp-rtpengine-recording-daemon-gpu,
- ngcp-rtpengine-utils,
-Suggests:
- ngcp-system-tools,
-Pre-Depends:
- adduser,
- ${misc:Pre-Depends},
-Depends:
- iptables,
- sysvinit-utils (>= 3.05-4~) | lsb-base (>= 3.0-6),
- ${misc:Depends},
- ${shlibs:Depends},
-Description: proxy for RTP and media streams incl GPU transcoding, userspace part
- This daemon handles the first stages of proxying media streams and talks to
- the kernel part of the proxy for eventual high-performance packet forwarding.
- This build includes support for GPU transcoding.
-
-Package: ngcp-rtpengine-recording-daemon-gpu
-Architecture: any
-Multi-Arch: foreign
-Build-Profiles: <pkg.ngcp-rtpengine.cudecs !pkg.ngcp-rtpengine.no-transcoding>
-Conflicts:
- ngcp-rtpengine-recording-daemon,
-Provides:
- ngcp-rtpengine-recording-daemon,
-Recommends:
- ngcp-rtpengine-utils,
-Suggests:
- ngcp-system-tools,
-Depends:
- nfs-common,
- ngcp-rtpengine-daemon-gpu,
- sysvinit-utils (>= 3.05-4~) | lsb-base (>= 3.0-6),
- ${misc:Depends},
- ${shlibs:Depends},
-Description: recording daemon for RTP and media streams incl GPU transcodnig
- This daemon handles the call recording (media intercept) component of rtpengine.
- This build includes support for GPU transcoding.
-
-Package: ngcp-rtpengine-gpu
-Architecture: all
-Build-Profiles: <pkg.ngcp-rtpengine.cudecs>
-Multi-Arch: foreign
-Conflicts:
- ngcp-rtpengine,
-Provides:
- ngcp-rtpengine,
-Depends:
- ngcp-rtpengine-daemon-gpu (>= ${source:Version}),
- ngcp-rtpengine-iptables (>= ${source:Version}),
- ngcp-rtpengine-kernel-dkms (>= ${source:Version}),
- ngcp-rtpengine-perftest-gpu (>= ${source:Version}),
- ngcp-rtpengine-recording-daemon-gpu (>= ${source:Version}),
- ngcp-rtpengine-utils (>= ${source:Version}),
- ${misc:Depends},
-Description: NGCP RTP/media proxy incl GPU transcoding - meta package
- This is a meta package for easy installation of all four parts of the NGCP
- media proxy. It will install the user-space daemon, the kernel-space IPtables
- module, the IPtables extension module and utility scripts.
- This build includes support for GPU transcoding.
-
-Package: ngcp-rtpengine-perftest-gpu
-Architecture: any
-Multi-Arch: foreign
-Build-Profiles: <!pkg.ngcp-rtpengine.no-transcoding pkg.ngcp-rtpengine.cudecs>
-Conflicts:
- ngcp-rtpengine-perftest,
-Provides:
- ngcp-rtpengine-perftest,
-Depends:
- ngcp-rtpengine-perftest-data (= ${source:Version}),
- ${misc:Depends},
- ${shlibs:Depends},
-Description: helper tool to test rtpengine transcoding performance incl GPU transcoding
- This interactive tool simulates transcoding scenarios using the rtpengine code
- base and produces performance and load statistics.
- This build includes support for GPU transcoding.

debian/generate-gpu-dh-fragments.sh

@@ -1,28 +0,0 @@
-#!/bin/bash
-for pkg in ngcp-rtpengine-daemon ngcp-rtpengine-recording-daemon ngcp-rtpengine-perftest; do
-  for file in "$pkg".*; do
-    if test -f "$file"; then
-      suffix=${file#"$pkg".}
-      cp -v "$pkg"."$suffix" "$pkg"-gpu."$suffix"
-    fi
-  done
-  for file in "$pkg"@.*; do
-    if test -f "$file"; then
-      suffix=${file#"$pkg"@.}
-      cp -v "$pkg"@."$suffix" "$pkg"-gpu@."$suffix"
-    fi
-  done
-  if test -f "$pkg"-gpu.links; then
-    rm -vf "$pkg"-gpu.links.tmp
-    while read -r line; do
-      # rewrite link from original 'rtpengine-daemon.service -> ngcp-rtpengine-daemon.service'
-      # ... to 'rtpengine-daemon-gpu.service -> ngcp-rtpengine-daemon-gpu.service'
-      echo "$line" | sed 's/\(@\?\)\.service/-gpu\1.service/g' >> "$pkg"-gpu.links.tmp
-      # add link 'rtpengine-daemon.service -> ngcp-rtpengine-daemon-gpu.service'
-      echo "$line" | sed 's/\(@\?\)\.service/-gpu\1.service/' >> "$pkg"-gpu.links.tmp
-      # add link 'ngcp-rtpengine-daemon.service -> ngcp-rtpengine-daemon-gpu.service'
-      echo "$line" | sed 's/\(@\?\)\.service/-gpu\1.service/; s,system/rtpengine,system/ngcp-rtpengine,' >> "$pkg"-gpu.links.tmp
-    done < "$pkg"-gpu.links
-    mv -v "$pkg"-gpu.links.tmp "$pkg"-gpu.links
-  fi
-done

debian/rules

@@ -28,9 +28,6 @@ export FIXTURES_PATH = /usr/share/rtpengine-perftest
 
 execute_before_dh_auto_configure:
 	(cd debian && sh generate-systemd-templates.sh)
-ifneq (,$(filter $(DEB_BUILD_PROFILES),pkg.ngcp-rtpengine.cudecs))
-	(cd debian && ./generate-gpu-dh-fragments.sh)
-endif
 
 execute_before_dh_auto_install-indep:
 	# markdown README
@@ -38,11 +35,7 @@ execute_before_dh_auto_install-indep:
 	gzip -9 < README.md > debian/README.md.gz
 
 execute_after_dh_installsystemd:
-ifneq (,$(filter $(DEB_BUILD_PROFILES),pkg.ngcp-rtpengine.cudecs))
-	dh_installsystemd -pngcp-rtpengine-recording-daemon-gpu --name=ngcp-rtpengine-recording-nfs-mount
-else
 	dh_installsystemd -pngcp-rtpengine-recording-daemon --name=ngcp-rtpengine-recording-nfs-mount
-endif
 
 override_dh_dkms:
 	dh_dkms -p$(DEB_SOURCE)-kernel-dkms -V $(DEB_VERSION_UPSTREAM)

lib/auxlib.c

@@ -216,7 +216,7 @@ void config_load(int *argc, char ***argv, GOptionEntry *app_entries, const char
 		{ "poller-size",	0,0,	G_OPTION_ARG_INT,	&rtpe_common_config_ptr->poller_size,	"Max poller items per iteration",	"INT"		},
 		{ "evs-lib-path",	0,0,	G_OPTION_ARG_FILENAME,	&rtpe_common_config_ptr->evs_lib_path,	"Location of .so for 3GPP EVS codec",	"FILE"		},
 #ifdef HAVE_CUDECS
-		{ "cudecs",		0,0,	G_OPTION_ARG_NONE,	&rtpe_common_config_ptr->cudecs,	"Enable usage of CUDA codecs",		NULL		},
+		{ "cudecs-lib-path",	0,0,	G_OPTION_ARG_FILENAME,	&rtpe_common_config_ptr->cudecs_lib_path,"Location of .so for CUDA codecs",	"FILE"		},
 #endif
 		{ NULL, }
 	};

lib/auxlib.h

@@ -36,7 +36,7 @@ struct rtpengine_common_config {
 	int poller_size;
 	int max_log_line_length;
 	char *evs_lib_path;
-	int cudecs;
+	char *cudecs_lib_path;
 };
 
 extern struct rtpengine_common_config *rtpe_common_config_ptr;

lib/codeclib.c

@@ -12,9 +12,7 @@
 #endif
 #include <opus.h>
 #ifdef HAVE_CUDECS
-#include <cudecs/g711opus.h>
-#include <cudecs/gpu-utils.h>
-#include <cudecs/gpu-opus.h>
+#include <cudecs/types.h>
 #endif
 #include "str.h"
 #include "log.h"
@@ -143,8 +141,31 @@ static select_encoder_format_f evs_select_encoder_format;
 
 
 
-struct codec_chain_s {
+static void *cudecs_lib_handle;
+
 #ifdef HAVE_CUDECS
+
+static gpu_init_fn *gpu_init;
+
+static gpu_pcma2opus_runner_new_fn *gpu_pcma2opus_runner_new;
+static gpu_pcmu2opus_runner_new_fn *gpu_pcmu2opus_runner_new;
+static gpu_opus2pcma_runner_new_fn *gpu_opus2pcma_runner_new;
+static gpu_opus2pcmu_runner_new_fn *gpu_opus2pcmu_runner_new;
+
+static gpu_pcma2opus_runner_do_fn *gpu_pcma2opus_runner_do;
+static gpu_pcmu2opus_runner_do_fn *gpu_pcmu2opus_runner_do;
+static gpu_opus2pcma_runner_do_fn *gpu_opus2pcma_runner_do;
+static gpu_opus2pcmu_runner_do_fn *gpu_opus2pcmu_runner_do;
+
+static gpu_float2opus_new_fn *gpu_float2opus_new;
+static gpu_opus2float_new_fn *gpu_opus2float_new;
+
+static gpu_pcma2opus_runner *pcma2opus_runner;
+static gpu_pcmu2opus_runner *pcmu2opus_runner;
+static gpu_opus2pcmu_runner *opus2pcmu_runner;
+static gpu_opus2pcma_runner *opus2pcma_runner;
+
+struct codec_chain_s {
 	union {
 		struct {
 			gpu_pcmu2opus_runner *runner;
@@ -165,8 +186,8 @@ struct codec_chain_s {
 	} u;
 	AVPacket *avpkt;
 	int (*run)(codec_chain_t *c, const str *data, unsigned long ts, AVPacket *);
-#endif
 };
+#endif
 
 
 
@@ -271,14 +292,6 @@ static const codec_type_t codec_type_bcg729 = {
 #endif
 
 
-#ifdef HAVE_CUDECS
-static gpu_pcma2opus_runner *pcma2opus_runner;
-static gpu_pcmu2opus_runner *pcmu2opus_runner;
-static gpu_opus2pcmu_runner *opus2pcmu_runner;
-static gpu_opus2pcma_runner *opus2pcma_runner;
-#endif
-
-
 
 static struct codec_def_s __codec_defs[] = {
 	{
@@ -1211,6 +1224,8 @@ void codeclib_free(void) {
 	avformat_network_deinit();
 	if (evs_lib_handle)
 		dlclose(evs_lib_handle);
+	if (cudecs_lib_handle)
+		dlclose(cudecs_lib_handle);
 }
 
 
@@ -1259,6 +1274,26 @@ static void *dlsym_assert(void *handle, const char *sym, const char *fn) {
 }
 
 
+#ifdef HAVE_CUDECS
+static void cudecs_dlsym_resolve(const char *fn) {
+	gpu_init = dlsym_assert(cudecs_lib_handle, "gpu_init", fn);
+
+	gpu_pcma2opus_runner_new = dlsym_assert(cudecs_lib_handle, "gpu_pcma2opus_runner_new", fn);
+	gpu_pcmu2opus_runner_new = dlsym_assert(cudecs_lib_handle, "gpu_pcmu2opus_runner_new", fn);
+	gpu_opus2pcma_runner_new = dlsym_assert(cudecs_lib_handle, "gpu_opus2pcma_runner_new", fn);
+	gpu_opus2pcmu_runner_new = dlsym_assert(cudecs_lib_handle, "gpu_opus2pcmu_runner_new", fn);
+
+	gpu_pcma2opus_runner_do = dlsym_assert(cudecs_lib_handle, "gpu_pcma2opus_runner_do", fn);
+	gpu_pcmu2opus_runner_do = dlsym_assert(cudecs_lib_handle, "gpu_pcmu2opus_runner_do", fn);
+	gpu_opus2pcma_runner_do = dlsym_assert(cudecs_lib_handle, "gpu_opus2pcma_runner_do", fn);
+	gpu_opus2pcmu_runner_do = dlsym_assert(cudecs_lib_handle, "gpu_opus2pcmu_runner_do", fn);
+
+	gpu_float2opus_new = dlsym_assert(cudecs_lib_handle, "gpu_float2opus_new", fn);
+	gpu_opus2float_new = dlsym_assert(cudecs_lib_handle, "gpu_opus2float_new", fn);
+}
+#endif
+
+
 void codeclib_init(int print) {
 #if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(58, 9, 100)
 	av_register_all();
@@ -1272,7 +1307,14 @@ void codeclib_init(int print) {
 	codecs_ht_by_av = g_hash_table_new(g_direct_hash, g_direct_equal);
 
 #ifdef HAVE_CUDECS
-	if (rtpe_common_config_ptr->cudecs) {
+	if (rtpe_common_config_ptr->cudecs_lib_path) {
+		cudecs_lib_handle = dlopen(rtpe_common_config_ptr->cudecs_lib_path, RTLD_NOW | RTLD_LOCAL);
+		if (!cudecs_lib_handle)
+			die("Failed to load CUDA codecs .so '%s': %s", rtpe_common_config_ptr->cudecs_lib_path,
+					dlerror());
+
+		cudecs_dlsym_resolve(rtpe_common_config_ptr->cudecs_lib_path);
+
 		if (!gpu_init())
 			die("Failed to initialise CUDA codecs");
 

lib/cudecs.Makefile

@@ -1,9 +1,7 @@
 ifneq (,$(filter pkg.ngcp-rtpengine.cudecs,${DEB_BUILD_PROFILES}))
 ifneq (,$(wildcard $(CUDECS_HOME)/usr/include/cudecs/g711opus.h))
 CFLAGS+=	-DHAVE_CUDECS -I$(CUDECS_HOME)/usr/include
-LDLIBS+=	-L$(CUDECS_HOME)/usr/lib -lcudecs
 else ifneq (,$(wildcard /usr/include/cudecs/g711opus.h))
 CFLAGS+=	-DHAVE_CUDECS
-LDLIBS+=	-lcudecs
 endif
 endif

pkg/deb/generator.sh

@@ -32,13 +32,11 @@ done < <(find debian -name '*links')
 echo "- Remove NGCP packages from control"
 sed -i -e '/ngcp-system-tools/d' debian/control
 sed -i -e '/ngcp-libcudecs/d' debian/control
-sed -i -n -e '/-gpu/ q; p' debian/control
 
 echo "- Set package-specific homepage"
 sed -i -e 's,^Homepage:.*,Homepage: https://rtpengine.com/,' debian/control
 
 echo "- Add Conflicts with NGCP packages"
-# TODO: prevent duplicate "Conflicts" when -gpu packages are left in place
 while read -r line ; do
   sed -i "/${line}$/ a Conflicts: ngcp-${line#Package: }" debian/control
 done < <(awk '/Package:/' debian/control)