Makefile

@@ -23,6 +23,8 @@ install: bitstream.pc
 	@install -m 644 common.h $(INCLUDE)/
 	@install -d $(INCLUDE)/atsc
 	@install -m 644 atsc/*.h $(INCLUDE)/atsc
+	@install -d $(INCLUDE)/atsc/si
+	@install -m 644 atsc/si/*.h $(INCLUDE)/atsc/si
 	@install -d $(INCLUDE)/dvb
 	@install -m 644 dvb/*.h $(INCLUDE)/dvb
 	@install -d $(INCLUDE)/dvb/si

atsc/si.h

+/*****************************************************************************
+ * si.h: ATSC Service Information
+ *****************************************************************************
+ * Copyright (C) 2019 OpenHeadend
+ *
+ * Authors: Arnaud de Turckheim <adeturckheim@openheadend.tv>
+ *
+ * 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 __BITSTREAM_ATSC_SI_H__
+#define __BITSTREAM_ATSC_SI_H__
+
+#include <bitstream/common.h>
+#include <bitstream/mpeg/psi/psi.h>
+#include <bitstream/mpeg/psi/descriptors.h>
+#include <bitstream/atsc/si/desc_81.h>
+#include <bitstream/atsc/si/desc_cc.h>
+
+#endif

atsc/si/desc_81.h

+/*****************************************************************************
+ * desc_81.h: ATSC A/52 Descriptor 0x81: AC-3 descriptor
+ *****************************************************************************
+ * Copyright (C) 2019 OpenHeadend
+ *
+ * Authors: Arnaud de Turckheim <adeturckheim@openheadend.tv>
+ *
+ * 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 __BITSTREAM_ATSC_DESC_81_H__
+#define __BITSTREAM_ATSC_DESC_81_H__
+
+#include <bitstream/common.h>
+#include <bitstream/mpeg/psi/descriptors.h>
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#define DESC81_HEADER_SIZE      (DESC_HEADER_SIZE + 3)
+
+static inline void desc81_init(uint8_t *p_desc)
+{
+    desc_set_tag(p_desc, 0x81);
+}
+
+#define DESC81_SAMPLE_RATE_CODE_48                  0x00
+#define DESC81_SAMPLE_RATE_CODE_44_1                0x01
+#define DESC81_SAMPLE_RATE_CODE_32                  0x02
+#define DESC81_SAMPLE_RATE_CODE_48_OR_44_1          0x04
+#define DESC81_SAMPLE_RATE_CODE_48_OR_32            0x05
+#define DESC81_SAMPLE_RATE_CODE_44_1_OR_32          0x06
+#define DESC81_SAMPLE_RATE_CODE_48_OR_44_1_OR_32    0x07
+
+static inline void desc81_set_sample_rate_code(uint8_t *p_desc,
+                                               uint8_t sample_rate)
+{
+    p_desc[2] = (p_desc[2] & 0x3f) | (sample_rate << 5);
+}
+
+static inline uint8_t desc81_get_sample_rate_code(const uint8_t *p_desc)
+{
+    return p_desc[2] >> 5;
+}
+
+static inline void desc81_set_bsid(uint8_t *p_desc, uint8_t bsid)
+{
+    p_desc[2] = (p_desc[2] & 0xd0) | (bsid & 0x1f);
+}
+
+static inline uint8_t desc81_get_bsid(const uint8_t *p_desc)
+{
+    return p_desc[2] & 0x1f;
+}
+
+static inline uint8_t desc81_bit_rate_code_from_octetrate(uint64_t octetrate)
+{
+    unsigned table[19] = {
+        32, 40, 48, 56, 64, 80,
+        96, 112, 128, 160, 192, 224,
+        256, 320, 384, 448, 512, 576,
+        640,
+    };
+    for (unsigned i = 0; i < 19; i++) {
+        if (octetrate * 8 == table[i])
+            return i;
+        else if (octetrate * 8 < table[i])
+            return 0x20 | i;
+    }
+    return 0xff;
+}
+
+static inline void desc81_set_bit_rate_code(uint8_t *p_desc,
+                                            uint8_t bit_rate_code)
+{
+    p_desc[3] = (p_desc[3] & 0x03) | (bit_rate_code << 2);
+}
+
+static inline uint8_t desc81_get_bit_rate_code(const uint8_t *p_desc)
+{
+    return p_desc[3] >> 2;
+}
+
+static inline void desc81_set_surround_mode(uint8_t *p_desc,
+                                            uint8_t surround_mode)
+{
+    p_desc[3] = (p_desc[3] & 0xfc) | (surround_mode & 0x03);
+}
+
+static inline uint8_t desc81_get_surround_mode(const uint8_t *p_desc)
+{
+    return p_desc[3] & 0x03;
+}
+
+static inline void desc81_set_bsmod(uint8_t *p_desc, uint8_t bsmod)
+{
+    p_desc[4] = (p_desc[4] & 0x1f) | (bsmod << 5);
+}
+
+static inline uint8_t desc81_get_bsmod(const uint8_t *p_desc)
+{
+    return p_desc[4] >> 5;
+}
+
+static inline void desc81_set_num_channels(uint8_t *p_desc,
+                                           uint8_t num_channels)
+{
+    p_desc[4] = (p_desc[4] & 0xe1) | ((num_channels & 0x0f) << 1);
+}
+
+static inline uint8_t desc81_get_num_channels(const uint8_t *p_desc)
+{
+    return (p_desc[4] & 0x1e) >> 1;
+}
+
+static inline void desc81_set_full_svc(uint8_t *p_desc, uint8_t full_svc)
+{
+    p_desc[4] = (p_desc[4] & 0xfe) | (full_svc & 0x01);
+}
+
+static inline uint8_t desc81_get_full_svc(const uint8_t *p_desc)
+{
+    return p_desc[4] & 0x1;
+}
+
+static inline void desc81_set_langcod(uint8_t *p_desc, uint8_t langcod)
+{
+    p_desc[5] = langcod;
+}
+
+static inline uint8_t desc81_get_langcod(const uint8_t *p_desc)
+{
+    return p_desc[5];
+}
+
+static inline void desc81_set_langcod2(uint8_t *p_desc, uint8_t langcod2)
+{
+    if (desc81_get_num_channels(p_desc) == 0)
+        p_desc[6] = langcod2;
+}
+
+static inline uint8_t desc81_get_langcod2(const uint8_t *p_desc)
+{
+    return p_desc[6];
+}
+
+static inline void desc81_set_mainid(uint8_t *p_desc, uint8_t mainid)
+{
+    if (desc81_get_bsmod(p_desc) < 2)
+        p_desc[7] = (p_desc[7] & 0x1f) | (mainid << 5);
+}
+
+static inline uint8_t desc81_get_mainid(const uint8_t *p_desc)
+{
+    return p_desc[7] >> 5;
+}
+
+static inline void desc81_set_priority(uint8_t *p_desc, uint8_t priority)
+{
+    p_desc[7] = (p_desc[7] & 0xe7) | ((priority & 0x3) << 3);
+}
+
+static inline uint8_t desc81_get_priority(const uint8_t *p_desc)
+{
+    return (p_desc[7] & 0x18) >> 3;
+}
+
+static inline void desc81_set_asvcflags(uint8_t *p_desc, uint8_t asvcflags)
+{
+    p_desc[7] = asvcflags;
+}
+
+static inline uint8_t desc81_get_asvcflags(const uint8_t *p_desc)
+{
+    return p_desc[7];
+}
+
+static inline bool desc81_validate(const uint8_t *p_desc)
+{
+    uint8_t i_size = (DESC81_HEADER_SIZE - DESC_HEADER_SIZE);
+    return desc_get_length(p_desc) >= i_size;
+}
+
+static inline void desc81_print(const uint8_t *p_desc, f_print pf_print,
+                                void *opaque, print_type_t i_print_type)
+{
+    uint8_t sample_rate_code = desc81_get_sample_rate_code(p_desc);
+    uint8_t bsid = desc81_get_bsid(p_desc);
+    uint8_t bit_rate_code = desc81_get_bit_rate_code(p_desc);
+    uint8_t surround_mode = desc81_get_surround_mode(p_desc);
+    uint8_t bsmod = desc81_get_bsmod(p_desc);
+    uint8_t num_channels = desc81_get_num_channels(p_desc);
+    uint8_t full_svc = desc81_get_full_svc(p_desc);
+
+    switch (i_print_type) {
+    case PRINT_XML:
+        pf_print(opaque,
+                 "<AC3_DESC"
+                 " sample_rate=\"0x%02x\""
+                 " bsid=\"0x%02x\""
+                 " bit_rate=\"0x%02x\""
+                 " surround_mode=\"0x%02x\""
+                 " bsmod=\"0x%02x\""
+                 " num_channels=\"0x%02x\""
+                 " full_svc=\"%u\"/>",
+                 sample_rate_code,
+                 bsid,
+                 bit_rate_code,
+                 surround_mode,
+                 bsmod,
+                 num_channels,
+                 full_svc);
+        break;
+    default:
+        pf_print(opaque,
+                 "    - desc 81 ac-3"
+                 " sample_rate=\"0x%02x\""
+                 " bsid=\"0x%02x\""
+                 " bit_rate=\"0x%02x\""
+                 " surround_mode=\"0x%02x\""
+                 " bsmod=\"0x%02x\""
+                 " num_channels=\"0x%02x\""
+                 " full_svc=\"%u\"",
+                 sample_rate_code,
+                 bsid,
+                 bit_rate_code,
+                 surround_mode,
+                 bsmod,
+                 num_channels,
+                 full_svc);
+        break;
+    }
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

atsc/si/desc_cc.h

+/*****************************************************************************
+ * desc_cc.h: ATSC A/52 Descriptor 0xcc: Enhanced AC-3 descriptor
+ *****************************************************************************
+ * Copyright (C) 2019 OpenHeadend
+ *
+ * Authors: Arnaud de Turckheim <adeturckheim@openheadend.tv>
+ *
+ * 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 __BITSTREAM_ATSC_DESC_CC_H__
+#define __BITSTREAM_ATSC_DESC_CC_H__
+
+#include <bitstream/common.h>
+#include <bitstream/mpeg/psi/descriptors.h>
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#define DESCCC_HEADER_SIZE      (DESC_HEADER_SIZE + 2)
+
+static inline void desccc_init(uint8_t *p_desc)
+{
+    desc_set_tag(p_desc, 0xcc);
+    desc_set_length(p_desc, DESCCC_HEADER_SIZE - DESC_HEADER_SIZE);
+    p_desc[2] = 0x80;
+    p_desc[3] = 0xc0;
+}
+
+static inline void desccc_clear_flags(uint8_t *p_desc)
+{
+    p_desc[2] = 0x80;
+    p_desc[3] = 0xc0;
+}
+
+static inline void desccc_set_bsid_flag(uint8_t *p_desc, uint8_t bsid_flag)
+{
+    p_desc[2] = (p_desc[2] & 0xbf) | ((bsid_flag & 0x1) << 6);
+}
+
+static inline uint8_t desccc_get_bsid_flag(const uint8_t *p_desc)
+{
+    return (p_desc[2] & 0x40) >> 6;
+}
+
+static inline void desccc_set_mainid_flag(uint8_t *p_desc, uint8_t mainid_flag)
+{
+    p_desc[2] = (p_desc[2] & 0xdf) | ((mainid_flag & 0x1) << 5);
+}
+
+static inline uint8_t desccc_get_mainid_flag(const uint8_t *p_desc)
+{
+    return (p_desc[2] & 0x20) >> 5;
+}
+
+static inline void desccc_set_asvc_flag(uint8_t *p_desc, uint8_t asvc_flag)
+{
+    p_desc[2] = (p_desc[2] & 0xef) | ((asvc_flag & 0x1) << 4);
+}
+
+static inline uint8_t desccc_get_asvc_flag(const uint8_t *p_desc)
+{
+    return (p_desc[2] & 0x10) >> 4;
+}
+
+static inline void desccc_set_mixinfoexists(uint8_t *p_desc,
+                                            uint8_t mixinfoexists)
+{
+    p_desc[2] = (p_desc[2] & 0xf7) | ((mixinfoexists & 0x1) << 3);
+}
+
+static inline uint8_t desccc_get_mixinfoexists(const uint8_t *p_desc)
+{
+    return (p_desc[2] & 0x08) >> 3;
+}
+
+static inline void desccc_set_substream1_flag(uint8_t *p_desc,
+                                            uint8_t substream1_flag)
+{
+    p_desc[2] = (p_desc[2] & 0xfb) | ((substream1_flag & 0x1) << 2);
+}
+
+static inline uint8_t desccc_get_substream1_flag(const uint8_t *p_desc)
+{
+    return (p_desc[2] & 0x04) >> 2;
+}
+
+static inline void desccc_set_substream2_flag(uint8_t *p_desc,
+                                            uint8_t substream2_flag)
+{
+    p_desc[2] = (p_desc[2] & 0xfd) | ((substream2_flag & 0x1) << 1);
+}
+
+static inline uint8_t desccc_get_substream2_flag(const uint8_t *p_desc)
+{
+    return (p_desc[2] & 0x02) >> 1;
+}
+
+static inline void desccc_set_substream3_flag(uint8_t *p_desc,
+                                            uint8_t substream3_flag)
+{
+    p_desc[2] = (p_desc[2] & 0xfe) | (substream3_flag & 0x1);
+}
+
+static inline uint8_t desccc_get_substream3_flag(const uint8_t *p_desc)
+{
+    return p_desc[2] & 0x01;
+}
+
+static inline void desccc_set_full_service_flag(uint8_t *p_desc,
+                                                uint8_t full_service_flag)
+{
+    p_desc[3] = (p_desc[3] & 0xbf) | ((full_service_flag & 0x01) << 6);
+}
+
+static inline uint8_t desccc_get_full_service_flag(const uint8_t *p_desc)
+{
+    return (p_desc[3] & 0x40) >> 6;
+}
+
+static inline void desccc_set_audio_service_type(uint8_t *p_desc,
+                                                 uint8_t audio_service_type)
+{
+    p_desc[3] = (p_desc[3] & 0xc7) | ((audio_service_type & 0x07) << 3);
+}
+
+static inline uint8_t desccc_get_audio_service_type(const uint8_t *p_desc)
+{
+    return (p_desc[3] & 0x38) >> 3;
+}
+
+static inline void desccc_set_number_of_channels(uint8_t *p_desc,
+                                                 uint8_t number_of_channels)
+{
+    p_desc[3] = (p_desc[3] & 0xf8) | number_of_channels;
+}
+
+static inline uint8_t desccc_get_number_of_channels(const uint8_t *p_desc)
+{
+    return p_desc[3] & 0x07;
+}
+
+static inline bool desccc_validate(const uint8_t *p_desc)
+{
+    uint8_t i_size = (DESCCC_HEADER_SIZE - DESC_HEADER_SIZE);
+    return desc_get_length(p_desc) >= i_size;
+}
+
+static inline void desccc_print(const uint8_t *p_desc, f_print pf_print,
+                                void *opaque, print_type_t i_print_type)
+{
+    switch (i_print_type) {
+    case PRINT_XML:
+        pf_print(opaque,
+                 "<EAC3_DESC "
+                 " bsid_flag=\"%u\""
+                 " mainid_flag=\"%u\""
+                 " asvc_flag=\"%u\""
+                 " mixinfoexists=\"%u\""
+                 " substream1_flag=\"%u\""
+                 " substream2_flag=\"%u\""
+                 " substream3_flag=\"%u\""
+                 " full_service_flag=\"%u\""
+                 " audio_service_type=\"0x%02x\""
+                 " number_of_channels=\"0x%02x\""
+                 "/>",
+                 desccc_get_bsid_flag(p_desc) ,
+                 desccc_get_mainid_flag(p_desc) ,
+                 desccc_get_asvc_flag(p_desc) ,
+                 desccc_get_mixinfoexists(p_desc) ,
+                 desccc_get_substream1_flag(p_desc) ,
+                 desccc_get_substream2_flag(p_desc) ,
+                 desccc_get_substream3_flag(p_desc) ,
+                 desccc_get_full_service_flag(p_desc) ,
+                 desccc_get_audio_service_type(p_desc),
+                 desccc_get_number_of_channels(p_desc));
+        break;
+
+    default:
+        pf_print(opaque,
+                 "    - desc cc eac3"
+                 " bsid_flag=\"%u\""
+                 " mainid_flag=\"%u\""
+                 " asvc_flag=\"%u\""
+                 " mixinfoexists=\"%u\""
+                 " substream1_flag=\"%u\""
+                 " substream2_flag=\"%u\""
+                 " substream3_flag=\"%u\""
+                 " full_service_flag=\"%u\""
+                 " audio_service_type=\"0x%02x\""
+                 " number_of_channels=\"0x%02x\"",
+                 desccc_get_bsid_flag(p_desc) ,
+                 desccc_get_mainid_flag(p_desc) ,
+                 desccc_get_asvc_flag(p_desc) ,
+                 desccc_get_mixinfoexists(p_desc) ,
+                 desccc_get_substream1_flag(p_desc) ,
+                 desccc_get_substream2_flag(p_desc) ,
+                 desccc_get_substream3_flag(p_desc) ,
+                 desccc_get_full_service_flag(p_desc) ,
+                 desccc_get_audio_service_type(p_desc),
+                 desccc_get_number_of_channels(p_desc)
+                );
+    }
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

atsc/si/descs_list.h

+/*****************************************************************************
+ * descs_list.h: All supported ATSC descriptors
+ *****************************************************************************
+ * Copyright (C) 2019 OpenHeadend
+ *
+ * Authors: Arnaud de Turckheim <adeturckheim@openheadend.tv>
+ *
+ * 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 __BITSTREAM_ATSC_DESCS_LIST_H__
+#define __BITSTREAM_ATSC_DESCS_LIST_H__
+
+#include <bitstream/atsc/si/desc_81.h>
+#include <bitstream/atsc/si/desc_cc.h>
+
+#endif

mpeg/psi/descs_print.h

@@ -32,6 +32,7 @@
 #include <bitstream/mpeg/psi/descriptors.h>
 #include <bitstream/mpeg/psi/descs_list.h>
 #include <bitstream/dvb/si/descs_list.h>
+#include <bitstream/atsc/si/descs_list.h>
 
 #ifdef __cplusplus
 extern "C"
@@ -183,6 +184,8 @@ static inline void descl_print(uint8_t *p_descl, uint16_t i_length,
         CASE_DESC(7a)
         CASE_DESC(7b)
         CASE_DESC(7c)
+        CASE_DESC(81)
+        CASE_DESC(cc)
 
 #undef CASE_DESC
 #undef CASE_DESC_ICONV