src: vod-server: import sources

This patch adds the source tree of the Video-On-Demand server and
its configuration scripts.

Change-Id: I6db8c43d46c7450baf117a541bd7153496dbcd4c
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>

1 files changed, 188 insertions, 0 deletions

diff --git a/Src/Multiplexer/SourceFileConverted.cpp b/Src/Multiplexer/SourceFileConverted.cpp
new file mode 100644
index 0000000..2816663
--- /dev/null
+++ b/Src/Multiplexer/SourceFileConverted.cpp
@@ -0,0 +1,188 @@
+/*
+ * Video On Demand Samples
+ *
+ * Copyright (C) 2016 Microchip Technology Germany II GmbH & Co. KG
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * You may also obtain this software under a propriety license from Microchip.
+ * Please contact Microchip for further information.
+ *
+ */
+
+#include <stdint.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <signal.h>
+#include <sys/wait.h>
+#include <stdlib.h>
+#include <errno.h>
+#include "Console.h"
+#include "SourceFileConverted.h"
+
+
+CSourceFileConverted::CSourceFileConverted(const char *szFile, bool autoDestroy)
+    : m_hFile(-1)
+    , m_nLength(0)
+    , m_nChildPid(0)
+{
+    m_bAutoDestroy = autoDestroy;
+    strncpy(m_szFileName, szFile, sizeof(m_szFileName));
+    m_nLength = 6*60;       // TODO: determine actual stream length, assume 6 minutes for now...
+
+    Start(0);
+
+    m_nPPid = 0x1000;       // avconv default / -mpegts_pmt_start_pid X
+    m_nAPid = 0x101;        // avconv default / -streamid 1:X
+    m_nVPid = 0x100;        // avconv default / -streamid 0:X
+
+    m_nLastPcr = PCR_INVALID;
+}
+
+
+
+
+CSourceFileConverted::~CSourceFileConverted()
+{
+    Close();
+}
+
+
+
+
+void CSourceFileConverted::Start(int64_t nPos)
+{
+    // fork() and start avconv in child:
+    int fd[2];
+    if (pipe(fd)) {
+        ConsolePrintf(PRIO_ERROR, RED"CSourceFileConverted: failed to open pipe for %s"RESETCOLOR"\n", m_szFileName);
+        return;
+    }
+    pid_t forkret = fork();
+    char *ext;
+    char chstr[20] = "";
+    switch (forkret) {
+    case 0:
+        /* the child process: */
+        close(fd[0]);
+        dup2(fd[1], 1);		// close stdout, duplicate input side of the pipe to stdout
+//        execl("/bin/cat", "/bin/cat", m_szFileName, NULL);
+        sprintf(chstr, "%lli", nPos);
+        ext = rindex(m_szFileName, '.');
+        if (ext && !strcasecmp(ext, ".mp3"))
+            execl("/usr/bin/avconv", "/usr/bin/avconv",
+                "-ss", chstr, "-i", m_szFileName,
+                "-f", "mpegts", "-codec", "copy",
+                "-map", "0:a:0",
+                "-streamid", "0:0x101", "-mpegts_pmt_start_pid", "0x1000",
+                "pipe:1", NULL);
+        else
+            execl("/usr/bin/avconv", "/usr/bin/avconv",
+                "-ss", chstr, "-i", m_szFileName,
+                "-f", "mpegts", "-codec", "copy", "-bsf:v", "h264_mp4toannexb",
+                "-map", "0:v:0", "-map", "0:a:0",
+                "-streamid", "0:0x100", "-streamid", "1:0x101", "-mpegts_pmt_start_pid", "0x1000",
+                "pipe:1", NULL);
+        ConsolePrintf(PRIO_ERROR, RED"CSourceFileConverted: execl() call failed for %s"RESETCOLOR"\n", m_szFileName);
+        exit(0);
+    case -1:
+        /* fork() failed */
+        close(fd[0]);
+        close(fd[1]);
+        ConsolePrintf(PRIO_ERROR, RED"CSourceFileConverted: failed to fork for %s"RESETCOLOR"\n", m_szFileName);
+        return;
+    default:
+        /* parent process after fork: */
+        m_nChildPid = forkret;
+        close(fd[1]);
+        m_hFile = fd[0];   /* read from child via pipe */
+    }
+
+    m_nLastPcr = PCR_INVALID;
+
+    ConsolePrintf( PRIO_MEDIUM, "Stream started file: %s\n", m_szFileName);
+}
+
+
+
+
+void CSourceFileConverted::Close()
+{
+    if (m_nChildPid > 0) {
+        ConsolePrintf(PRIO_LOW, "sending SIGKILL to pid %u\n", m_nChildPid);
+        kill(m_nChildPid, SIGKILL);
+        ConsolePrintf(PRIO_LOW, "waiting for child to exit...\n");
+        int childStatus = 0;
+        waitpid(m_nChildPid, &childStatus, 0);
+        m_nChildPid = 0;
+        if (WIFEXITED(childStatus))
+            ConsolePrintf(PRIO_LOW, "child terminated normally (exit status %u)\n", WEXITSTATUS(childStatus));
+        else if (WIFSIGNALED(childStatus))
+            ConsolePrintf(PRIO_LOW, "child terminated by signal number %u\n", WTERMSIG(childStatus));
+    }
+    if (m_hFile > 0) { 
+        close(m_hFile);
+        m_hFile = -1;
+        ConsolePrintf( PRIO_MEDIUM, "Stream closed file: %s\n", m_szFileName);
+    }
+}
+
+
+
+
+bool CSourceFileConverted::FillBuffer()
+{
+    if (true == m_bPause      ||                            // source paused?
+        0 == m_Stream.Size()  ||                            // no receiving streams?
+        m_hFile < 0           ||                            // file already closed?
+        !GetCanWrite()        )                             // ring buffer full?
+    {
+        return false;
+    }
+    
+
+    if ( INVALID_POS != m_fReqPos) {            // user requested to play from other position?
+        int64_t nPos = (m_nLength * (int64_t)m_fReqPos / 1000);
+
+        ConsolePrintf( PRIO_MEDIUM, "Stream seek to %lld (%lld per mil) for file: %s\r\n", nPos,(1000 * nPos / m_nLength), m_szFileName);
+
+        m_fReqPos = INVALID_POS;
+
+        Close();
+        Start(nPos);
+    }
+
+
+    unsigned int readcnt = 0;
+    while (readcnt < READ_LEN) {
+        int readres = read(m_hFile, GetWritePos()+readcnt, READ_LEN-readcnt);
+        if (readres <= 0) {     // remote pipe end closed, or other error?
+            ConsolePrintf( PRIO_MEDIUM, "CSourceFileConverted: EOF for file: %s (result=%i, errno=%i)\r\n", m_szFileName, readres, errno);
+
+            //TODO: remove quick hack:
+            if (true || m_bRepetition)
+                m_fReqPos = 0;
+            else
+                Close();
+                
+            return false;
+        }
+        readcnt += readres;
+    }
+
+    m_nBytesRead += READ_LEN;
+    WriteDone();
+    return true;
+}