[libdvbpsi-devel] [PATCH 1/3] Introduce support for the MPEG-4 video descriptor
Daniel Kamil Kozar
dkk089 at gmail.com
Sun Mar 15 16:26:26 CET 2015
---
src/Makefile.am | 2 +
src/descriptors/dr_1b.c | 75 +++++++++++++++++++++++++
src/descriptors/dr_1b.h | 146 ++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 223 insertions(+)
create mode 100644 src/descriptors/dr_1b.c
create mode 100644 src/descriptors/dr_1b.h
diff --git a/src/Makefile.am b/src/Makefile.am
index 27b97eb..047a33f 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -39,6 +39,7 @@ pkginclude_HEADERS = dvbpsi.h psi.h descriptor.h demux.h \
descriptors/dr_12.h \
descriptors/dr_13.h \
descriptors/dr_14.h \
+ descriptors/dr_1b.h \
descriptors/dr_40.h \
descriptors/dr_41.h \
descriptors/dr_42.h \
@@ -96,6 +97,7 @@ descriptors_src = descriptors/dr_02.c \
descriptors/dr_12.c \
descriptors/dr_13.c \
descriptors/dr_14.c \
+ descriptors/dr_1b.c \
descriptors/dr_40.c \
descriptors/dr_41.c \
descriptors/dr_42.c \
diff --git a/src/descriptors/dr_1b.c b/src/descriptors/dr_1b.c
new file mode 100644
index 0000000..17984b9
--- /dev/null
+++ b/src/descriptors/dr_1b.c
@@ -0,0 +1,75 @@
+/*
+Copyright (C) 2015 Daniel Kamil Kozar
+
+This library 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 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
+Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this library; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+*/
+
+#include "config.h"
+
+#include <stdlib.h>
+#include <stdbool.h>
+
+#if defined(HAVE_INTTYPES_H)
+#include <inttypes.h>
+#elif defined(HAVE_STDINT_H)
+#include <stdint.h>
+#endif
+
+#include "../dvbpsi.h"
+#include "../dvbpsi_private.h"
+#include "../descriptor.h"
+
+#include "dr_1b.h"
+
+dvbpsi_mpeg4_video_dr_t* dvbpsi_DecodeMPEG4VideoDr(
+ dvbpsi_descriptor_t * p_descriptor)
+{
+ dvbpsi_mpeg4_video_dr_t * p_decoded;
+
+ /* check the tag. */
+ if (!dvbpsi_CanDecodeAsDescriptor(p_descriptor, 0x1b))
+ return NULL;
+
+ /* don't decode twice. */
+ if (dvbpsi_IsDescriptorDecoded(p_descriptor))
+ return p_descriptor->p_decoded;
+
+ /* all descriptors of this type have only one byte of payload. */
+ if (p_descriptor->i_length != 1)
+ return NULL;
+
+ p_decoded = (dvbpsi_mpeg4_video_dr_t*)malloc(sizeof(*p_decoded));
+ if (!p_decoded)
+ return NULL;
+
+ p_decoded->i_mpeg4_visual_profile_and_level = p_descriptor->p_data[0];
+
+ p_descriptor->p_decoded = (void*)p_decoded;
+
+ return p_decoded;
+}
+
+dvbpsi_descriptor_t * dvbpsi_GenMPEG4VideoDr(
+ dvbpsi_mpeg4_video_dr_t * p_decoded)
+{
+ dvbpsi_descriptor_t * p_descriptor = dvbpsi_NewDescriptor(0x1b, 1, NULL);
+ if (!p_descriptor)
+ return NULL;
+
+ /* encode the data. */
+ p_descriptor->p_data[0] = p_decoded->i_mpeg4_visual_profile_and_level;
+
+ return p_descriptor;
+}
diff --git a/src/descriptors/dr_1b.h b/src/descriptors/dr_1b.h
new file mode 100644
index 0000000..efbea22
--- /dev/null
+++ b/src/descriptors/dr_1b.h
@@ -0,0 +1,146 @@
+/*
+Copyright (C) 2015 Daniel Kamil Kozar
+
+This library 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 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
+Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this library; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+*/
+
+/*!
+ * \file <dr_1b.h>
+ * \author Daniel Kamil Kozar <dkk089 at gmail.com>
+ * \brief Application interface for the MPEG-4 video descriptor decoder and
+ * generator.
+ *
+ * Application interface for the MPEG-4 video descriptor decoder and generator.
+ * This descriptor's definition can be found in ISO/IEC 13818-1 revision 2014/10
+ * section 2.6.36.
+ */
+
+#ifndef _DVBPSI_DR_1B_H_
+#define _DVBPSI_DR_1B_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*!
+ * \enum dvbpsi_mpeg4_visual_profile_and_level_s
+ * \brief Enumeration of MPEG-4 video profile and levels as specified in
+ * ISO/IEC 14496-2:2001 Table G-1.
+ */
+/*!
+ * \typedef enum dvbpsi_mpeg4_visual_profile_and_level_s
+ * dvbpsi_mpeg4_visual_profile_and_level_t
+ * \note Values not present in this enumeration were marked by the specification
+ * as reserved at the time of writing.
+ * \brief MPEG-4 video profile and level as specified in ISO/IEC 14496-2:2001
+ * Table G-1.
+ */
+typedef enum dvbpsi_mpeg4_visual_profile_and_level_s
+{
+ DVBPSI_MPEG4V_PROFILE_SIMPLE_L1 = 0x01, /*!< Simple Profile/Level 1 */
+ DVBPSI_MPEG4V_PROFILE_SIMPLE_L2 = 0x02, /*!< Simple Profile/Level 2 */
+ DVBPSI_MPEG4V_PROFILE_SIMPLE_L3 = 0x03, /*!< Simple Profile/Level 3 */
+ /* 0x04 - 0x10 : Reserved */
+ DVBPSI_MPEG4V_PROFILE_SIMPLE_SCALABLE_L1 = 0x11, /*!< Simple Scalable Profile/Level 1 */
+ DVBPSI_MPEG4V_PROFILE_SIMPLE_SCALABLE_L2 = 0x12, /*!< Simple Scalable Profile/Level 2 */
+ /* 0x13 - 0x20 : Reserved */
+ DVBPSI_MPEG4V_PROFILE_CORE_L1 = 0x21, /*!< Core Profile/Level 1 */
+ DVBPSI_MPEG4V_PROFILE_CORE_L2 = 0x22, /*!< Core Profile/Level 2 */
+ /* 0x23 - 0x31 : Reserved */
+ DVBPSI_MPEG4V_PROFILE_MAIN_L2 = 0x32, /*!< Main Profile/Level 2 */
+ DVBPSI_MPEG4V_PROFILE_MAIN_L3 = 0x33, /*!< Main Profile/Level 3 */
+ DVBPSI_MPEG4V_PROFILE_MAIN_L4 = 0x34, /*!< Main Profile/Level 4 */
+ /* 0x35 - 0x41 : Reserved */
+ DVBPSI_MPEG4V_PROFILE_N_BIT_L2 = 0x42, /*!< N-bit Profile/Level 2 */
+ /* 0x43 - 0x50 : Reserved */
+ DVBPSI_MPEG4V_PROFILE_SCALABLE_TEXTURE_L1 = 0x51, /*!< Scalable Texture Profile/Level 1 */
+ /* 0x52 - 0x60 : Reserved */
+ DVBPSI_MPEG4V_PROFILE_SIMPLE_FACE_ANIMATION_L1 = 0x61, /*!< Simple Face Animation Profile/Level 1 */
+ DVBPSI_MPEG4V_PROFILE_SIMPLE_FACE_ANIMATION_L2 = 0x62, /*!< Simple Face Animation Profile/Level 2 */
+ DVBPSI_MPEG4V_PROFILE_SIMPLE_FBA_L1 = 0x63, /*!< Simple FBA Profile/Level 1 */
+ DVBPSI_MPEG4V_PROFILE_SIMPLE_FBA_L2 = 0x64, /*!< Simple FBA Profile/Level 2 */
+ /* 0x65 - 0x70 : Reserved */
+ DVBPSI_MPEG4V_PROFILE_BASIC_ANIMATED_TEXTURE_L1 = 0x71, /*!< Basic Animated Texture Profile/Level 1 */
+ DVBPSI_MPEG4V_PROFILE_BASIC_ANIMATED_TEXTURE_L2 = 0x72, /*!< Basic Animated Texture Profile/Level 2 */
+ /* 0x73 - 0x80 : Reserved */
+ DVBPSI_MPEG4V_PROFILE_HYBRID_L1 = 0x81, /*!< Hybrid Profile/Level 1 */
+ DVBPSI_MPEG4V_PROFILE_HYBRID_L2 = 0x82, /*!< Hybrid Profile/Level 2 */
+ /* 0x83 - 0x90 : Reserved */
+ DVBPSI_MPEG4V_PROFILE_ADV_REAL_TIME_SIMPLE_L1 = 0x91, /*!< Advanced Real Time Simple Profile/Level 1 */
+ DVBPSI_MPEG4V_PROFILE_ADV_REAL_TIME_SIMPLE_L2 = 0x92, /*!< Advanced Real Time Simple Profile/Level 2 */
+ DVBPSI_MPEG4V_PROFILE_ADV_REAL_TIME_SIMPLE_L3 = 0x93, /*!< Advanced Real Time Simple Profile/Level 3 */
+ DVBPSI_MPEG4V_PROFILE_ADV_REAL_TIME_SIMPLE_L4 = 0x94, /*!< Advanced Real Time Simple Profile/Level 4 */
+ /* 0x95 - 0xa0 : Reserved */
+ DVBPSI_MPEG4V_PROFILE_CORE_SCALABLE_L1 = 0xa1, /*!< Core Scalable Profile/Level 1 */
+ DVBPSI_MPEG4V_PROFILE_CORE_SCALABLE_L2 = 0xa2, /*!< Core Scalable Profile/Level 2 */
+ DVBPSI_MPEG4V_PROFILE_CORE_SCALABLE_L3 = 0xa3, /*!< Core Scalable Profile/Level 3 */
+ /* 0xa4 - 0xb0 : Reserved */
+ DVBPSI_MPEG4V_PROFILE_ADV_CODING_EFF_L1 = 0xb1, /*!< Advanced Coding Efficiency Profile/Level 1 */
+ DVBPSI_MPEG4V_PROFILE_ADV_CODING_EFF_L2 = 0xb2, /*!< Advanced Coding Efficiency Profile/Level 2 */
+ DVBPSI_MPEG4V_PROFILE_ADV_CODING_EFF_L3 = 0xb3, /*!< Advanced Coding Efficiency Profile/Level 3 */
+ DVBPSI_MPEG4V_PROFILE_ADV_CODING_EFF_L4 = 0xb4, /*!< Advanced Coding Efficiency Profile/Level 4 */
+ /* 0xb5 - 0xc0 : Reserved */
+ DVBPSI_MPEG4V_PROFILE_ADV_CORE_L1 = 0xc1, /*!< Advanced Core Profile/Level 1 */
+ DVBPSI_MPEG4V_PROFILE_ADV_CORE_L2 = 0xc2, /*!< Advanced Core Profile/Level 2 */
+ /* 0xc3 - 0xd0 : Reserved */
+ DVBPSI_MPEG4V_PROFILE_ADV_SCALABLE_TEXTURE_L1 = 0xd1, /*!< Advanced Scalable Texture/Level 1 */
+ DVBPSI_MPEG4V_PROFILE_ADV_SCALABLE_TEXTURE_L2 = 0xd2, /*!< Advanced Scalable Texture/Level 2 */
+ DVBPSI_MPEG4V_PROFILE_ADV_SCALABLE_TEXTURE_L3 = 0xd3, /*!< Advanced Scalable Texture/Level 3 */
+ /* 0xd4 - 0xff : Reserved */
+ DVBPSI_MPEG4V_PROFILE_LAST = 0xff, /* enforce enum size. */
+} dvbpsi_mpeg4_visual_profile_and_level_t;
+
+/*!
+ * \struct dvbpsi_mpeg4_video_dr_s
+ * \brief MPEG-4 video descriptor structure.
+ *
+ * This structure is used to store a decoded MPEG-4 video descriptor. (ISO/IEC
+ * 13818-1 section 2.6.36).
+ */
+
+/*!
+ * \typedef struct dvbpsi_mpeg4_video_dr_s dvbpsi_mpeg4_video_dr_t
+ * \brief dvbpsi_mpeg4_video_dr_t type definition.
+ */
+typedef struct dvbpsi_mpeg4_video_dr_s
+{
+ /*! MPEG-4_visual_profile_and_level */
+ dvbpsi_mpeg4_visual_profile_and_level_t i_mpeg4_visual_profile_and_level;
+} dvbpsi_mpeg4_video_dr_t;
+
+/*!
+ * \brief MPEG-4 video descriptor decoder.
+ * \param p_descriptor pointer to the descriptor structure
+ * \return A pointer to a new MPEG-4 video descriptor structure which contains
+ * the decoded data.
+ */
+dvbpsi_mpeg4_video_dr_t* dvbpsi_DecodeMPEG4VideoDr(
+ dvbpsi_descriptor_t * p_descriptor);
+
+/*!
+ * \brief MPEG-4 video descriptor generator.
+ * \param p_decoded pointer to a decoded MPEG-4 video descriptor structure.
+ * \return a pointer to a new descriptor structure which contains encoded data.
+ */
+dvbpsi_descriptor_t * dvbpsi_GenMPEG4VideoDr(
+ dvbpsi_mpeg4_video_dr_t * p_decoded);
+
+#ifdef __cplusplus
+}
+#endif
+
+#else
+#error "Multiple inclusions of dr_1b.h"
+#endif
--
2.3.2
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