mpegpsmux: Add MPEG PS muxer

1 files changed, 162 insertions, 0 deletions

diff --git a/gst/mpegpsmux/psmuxcommon.h b/gst/mpegpsmux/psmuxcommon.h
new file mode 100644
index 000000000..5c7cecb34
--- /dev/null
+++ b/gst/mpegpsmux/psmuxcommon.h
@@ -0,0 +1,162 @@
+/* MPEG-PS muxer plugin for GStreamer
+ * Copyright 2008 Lin YANG <oxcsnicho@gmail.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+/*
+ * Unless otherwise indicated, Source Code is licensed under MIT license.
+ * See further explanation attached in License Statement (distributed in the file
+ * LICENSE).
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is furnished to do
+ * so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+
+
+#ifndef __PSMUX_COMMON_H__
+#define __PSMUX_COMMON_H__
+
+#include <glib.h>
+#include <gst/gst.h>
+#include "bits.h" /* from VLC */
+
+#undef PS_DEBUG_ON
+
+G_BEGIN_DECLS
+
+#define PSMUX_PACK_HDR_FREQ	30
+#define PSMUX_SYS_HDR_FREQ	300
+#define PSMUX_PSM_FREQ		300
+
+#define PSMUX_PES_MAX_PAYLOAD 65500 /* from VLC */
+#define PSMUX_PES_MAX_HDR_LEN 30
+#define PSMUX_MAX_PACKET_LEN (PSMUX_PES_MAX_PAYLOAD + PSMUX_PES_MAX_HDR_LEN)
+
+#define CLOCKBASE 90000
+#define PSMUX_PACK_HDR_INTERVAL		( 0.7 * CLOCKBASE) /* interval to update pack header. 0.7 sec */
+#define PSMUX_BITRATE_CALC_INTERVAL	CLOCKBASE /* interval to update bitrate in pack header. 1 sec */
+
+#define PSMUX_PES_BITRATE_DEFAULT 1000 /* Default bit_rate to write in the first pack header */
+
+#define PSMUX_START_CODE_PREFIX         0x01
+
+/* stream_id */ 
+#define PSMUX_PACK_HEADER               0xba
+#define PSMUX_SYSTEM_HEADER             0xbb
+#define PSMUX_PROGRAM_STREAM_MAP        0xbc
+#define PSMUX_PRIVATE_STREAM_1          0xbd
+#define PSMUX_PADDING_STREAM            0xbe
+#define PSMUX_PRIVATE_STREAM_2          0xbf
+#define PSMUX_ECM                       0xb0
+#define PSMUX_EMM                       0xb1
+#define PSMUX_PROGRAM_STREAM_DIRECTORY  0xff
+#define PSMUX_DSMCC_STREAM              0xf2
+#define PSMUX_ITU_T_H222_1_TYPE_E       0xf8
+#define PSMUX_EXTENDED_STREAM           0xfd
+#define PSMUX_PROGRAM_END               0xb9
+
+#define PSMUX_MIN_ES_DESC_LEN 8
+
+/* Frequency for PCR representation */
+#define PSMUX_SYS_CLOCK_FREQ (27000000L)
+/* Frequency for PTS values */
+#define PSMUX_CLOCK_FREQ (PSMUX_SYS_CLOCK_FREQ / 300)
+
+/* TODO: flags? looks that we don't need these */
+#define PSMUX_PACKET_FLAG_NONE            (0)
+#define PSMUX_PACKET_FLAG_ADAPTATION      (1 << 0)
+#define PSMUX_PACKET_FLAG_DISCONT         (1 << 1)
+#define PSMUX_PACKET_FLAG_RANDOM_ACCESS   (1 << 2)
+#define PSMUX_PACKET_FLAG_PRIORITY        (1 << 3)
+#define PSMUX_PACKET_FLAG_WRITE_PCR       (1 << 4)
+#define PSMUX_PACKET_FLAG_WRITE_OPCR      (1 << 5)
+#define PSMUX_PACKET_FLAG_WRITE_SPLICE    (1 << 6)
+#define PSMUX_PACKET_FLAG_WRITE_ADAPT_EXT (1 << 7)
+
+/* PES stream specific flags */
+#define PSMUX_PACKET_FLAG_PES_FULL_HEADER   (1 << 8)
+#define PSMUX_PACKET_FLAG_PES_WRITE_PTS     (1 << 9)
+#define PSMUX_PACKET_FLAG_PES_WRITE_PTS_DTS (1 << 10)
+#define PSMUX_PACKET_FLAG_PES_WRITE_ESCR    (1 << 11)
+#define PSMUX_PACKET_FLAG_PES_EXT_STREAMID  (1 << 12)
+#define PSMUX_PACKET_FLAG_PES_DATA_ALIGN    (1 << 13)
+
+typedef struct PsMuxPacketInfo PsMuxPacketInfo;
+typedef struct PsMuxProgram PsMuxProgram;
+typedef struct PsMuxStream PsMuxStream;
+typedef struct PsMuxStreamIdInfo PsMuxStreamIdInfo;
+typedef struct PsMux PsMux;
+typedef enum PsMuxStreamType PsMuxStreamType;
+typedef struct PsMuxStreamBuffer PsMuxStreamBuffer;
+
+/* clearup and see if we need this anymore */
+struct PsMuxPacketInfo {
+  guint32 flags;
+};
+
+/* bitstream writers */
+static inline void
+psmux_put16 (guint8 **pos, guint16 val)
+{
+  *(*pos)++ = (val >> 8) & 0xff;
+  *(*pos)++ = val & 0xff;
+}
+
+static inline void
+psmux_put32 (guint8 **pos, guint32 val)
+{
+  *(*pos)++ = (val >> 24) & 0xff;
+  *(*pos)++ = (val >> 16) & 0xff;
+  *(*pos)++ = (val >> 8) & 0xff;
+  *(*pos)++ = val & 0xff;
+}
+
+static inline void
+psmux_put_ts (guint8 **pos, guint8 id, gint64 ts)
+{
+  /* 1: 4 bit id value | TS [32..30] | marker_bit */
+  *(*pos)++ = ((id << 4) | ((ts >> 29) & 0x0E) | 0x01) & 0xff;
+  /* 2, 3: TS[29..15] | marker_bit */
+  psmux_put16 (pos, ((ts >> 14) & 0xfffe) | 0x01);
+  /* 4, 5: TS[14..0] | marker_bit */
+  psmux_put16 (pos, ((ts << 1) & 0xfffe) | 0x01);
+}
+
+#ifdef PS_DEBUG_ON
+#define PS_DEBUG(...) g_print(__VA_ARGS__); g_print ("\n")
+#else
+#define PS_DEBUG(...)
+#endif
+
+G_END_DECLS
+
+#endif