FFmpeg  4.3
spdif.h
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1 /*
2  * IEC 61937 common header
3  * Copyright (c) 2009 Bartlomiej Wolowiec
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #ifndef AVFORMAT_SPDIF_H
23 #define AVFORMAT_SPDIF_H
24 
25 #include <stdint.h>
26 #include "avformat.h"
27 
28 #define SYNCWORD1 0xF872
29 #define SYNCWORD2 0x4E1F
30 #define BURST_HEADER_SIZE 0x8
31 
33  IEC61937_AC3 = 0x01, ///< AC-3 data
34  IEC61937_MPEG1_LAYER1 = 0x04, ///< MPEG-1 layer 1
35  IEC61937_MPEG1_LAYER23 = 0x05, ///< MPEG-1 layer 2 or 3 data or MPEG-2 without extension
36  IEC61937_MPEG2_EXT = 0x06, ///< MPEG-2 data with extension
37  IEC61937_MPEG2_AAC = 0x07, ///< MPEG-2 AAC ADTS
38  IEC61937_MPEG2_LAYER1_LSF = 0x08, ///< MPEG-2, layer-1 low sampling frequency
39  IEC61937_MPEG2_LAYER2_LSF = 0x09, ///< MPEG-2, layer-2 low sampling frequency
40  IEC61937_MPEG2_LAYER3_LSF = 0x0A, ///< MPEG-2, layer-3 low sampling frequency
41  IEC61937_DTS1 = 0x0B, ///< DTS type I (512 samples)
42  IEC61937_DTS2 = 0x0C, ///< DTS type II (1024 samples)
43  IEC61937_DTS3 = 0x0D, ///< DTS type III (2048 samples)
44  IEC61937_ATRAC = 0x0E, ///< ATRAC data
45  IEC61937_ATRAC3 = 0x0F, ///< ATRAC3 data
46  IEC61937_ATRACX = 0x10, ///< ATRAC3+ data
47  IEC61937_DTSHD = 0x11, ///< DTS HD data
48  IEC61937_WMAPRO = 0x12, ///< WMA 9 Professional data
49  IEC61937_MPEG2_AAC_LSF_2048 = 0x13, ///< MPEG-2 AAC ADTS half-rate low sampling frequency
50  IEC61937_MPEG2_AAC_LSF_4096 = 0x13 | 0x20, ///< MPEG-2 AAC ADTS quarter-rate low sampling frequency
51  IEC61937_EAC3 = 0x15, ///< E-AC-3 data
52  IEC61937_TRUEHD = 0x16, ///< TrueHD data
53 };
54 
55 static const uint16_t spdif_mpeg_pkt_offset[2][3] = {
56  //LAYER1 LAYER2 LAYER3
57  { 3072, 9216, 4608 }, // MPEG-2 LSF
58  { 1536, 4608, 4608 }, // MPEG-1
59 };
60 
61 void ff_spdif_bswap_buf16(uint16_t *dst, const uint16_t *src, int w);
63 int ff_spdif_probe(const uint8_t *p_buf, int buf_size, enum AVCodecID *codec);
64 
65 #endif /* AVFORMAT_SPDIF_H */
IEC61937_MPEG2_AAC_LSF_4096
@ IEC61937_MPEG2_AAC_LSF_4096
MPEG-2 AAC ADTS quarter-rate low sampling frequency.
Definition: spdif.h:50
IEC61937DataType
IEC61937DataType
Definition: spdif.h:32
ff_spdif_bswap_buf16
void ff_spdif_bswap_buf16(uint16_t *dst, const uint16_t *src, int w)
Definition: spdif.c:26
IEC61937_MPEG2_LAYER1_LSF
@ IEC61937_MPEG2_LAYER1_LSF
MPEG-2, layer-1 low sampling frequency.
Definition: spdif.h:38
IEC61937_ATRAC3
@ IEC61937_ATRAC3
ATRAC3 data.
Definition: spdif.h:45
IEC61937_MPEG2_EXT
@ IEC61937_MPEG2_EXT
MPEG-2 data with extension.
Definition: spdif.h:36
s
#define s(width, name)
Definition: cbs_vp9.c:257
AVFormatContext
Format I/O context.
Definition: avformat.h:1335
IEC61937_AC3
@ IEC61937_AC3
AC-3 data.
Definition: spdif.h:33
src
#define src
Definition: vp8dsp.c:254
IEC61937_DTSHD
@ IEC61937_DTSHD
DTS HD data.
Definition: spdif.h:47
AVCodecID
AVCodecID
Identify the syntax and semantics of the bitstream.
Definition: codec_id.h:46
IEC61937_DTS3
@ IEC61937_DTS3
DTS type III (2048 samples)
Definition: spdif.h:43
IEC61937_MPEG1_LAYER23
@ IEC61937_MPEG1_LAYER23
MPEG-1 layer 2 or 3 data or MPEG-2 without extension.
Definition: spdif.h:35
IEC61937_DTS2
@ IEC61937_DTS2
DTS type II (1024 samples)
Definition: spdif.h:42
ff_spdif_probe
int ff_spdif_probe(const uint8_t *p_buf, int buf_size, enum AVCodecID *codec)
Definition: spdifdec.c:116
IEC61937_DTS1
@ IEC61937_DTS1
DTS type I (512 samples)
Definition: spdif.h:41
ff_spdif_read_packet
int ff_spdif_read_packet(AVFormatContext *s, AVPacket *pkt)
Definition: spdifdec.c:173
IEC61937_MPEG1_LAYER1
@ IEC61937_MPEG1_LAYER1
MPEG-1 layer 1.
Definition: spdif.h:34
uint8_t
uint8_t
Definition: audio_convert.c:194
IEC61937_EAC3
@ IEC61937_EAC3
E-AC-3 data.
Definition: spdif.h:51
IEC61937_MPEG2_AAC_LSF_2048
@ IEC61937_MPEG2_AAC_LSF_2048
MPEG-2 AAC ADTS half-rate low sampling frequency.
Definition: spdif.h:49
w
FFmpeg Automated Testing Environment ************************************Introduction Using FATE from your FFmpeg source directory Submitting the results to the FFmpeg result aggregation server Uploading new samples to the fate suite FATE makefile targets and variables Makefile targets Makefile variables Examples Introduction **************FATE is an extended regression suite on the client side and a means for results aggregation and presentation on the server side The first part of this document explains how you can use FATE from your FFmpeg source directory to test your ffmpeg binary The second part describes how you can run FATE to submit the results to FFmpeg’s FATE server In any way you can have a look at the publicly viewable FATE results by visiting this as it can be seen if some test on some platform broke with their recent contribution This usually happens on the platforms the developers could not test on The second part of this document describes how you can run FATE to submit your results to FFmpeg’s FATE server If you want to submit your results be sure to check that your combination of OS and compiler is not already listed on the above mentioned website In the third part you can find a comprehensive listing of FATE makefile targets and variables Using FATE from your FFmpeg source directory **********************************************If you want to run FATE on your machine you need to have the samples in place You can get the samples via the build target fate rsync Use this command from the top level source this will cause FATE to fail NOTE To use a custom wrapper to run the pass ‘ target exec’ to ‘configure’ or set the TARGET_EXEC Make variable Submitting the results to the FFmpeg result aggregation server ****************************************************************To submit your results to the server you should run fate through the shell script ‘tests fate sh’ from the FFmpeg sources This script needs to be invoked with a configuration file as its first argument tests fate sh path to fate_config A configuration file template with comments describing the individual configuration variables can be found at ‘doc fate_config sh template’ Create a configuration that suits your based on the configuration template The ‘slot’ configuration variable can be any string that is not yet but it is suggested that you name it adhering to the following pattern ‘ARCH OS COMPILER COMPILER VERSION’ The configuration file itself will be sourced in a shell therefore all shell features may be used This enables you to setup the environment as you need it for your build For your first test runs the ‘fate_recv’ variable should be empty or commented out This will run everything as normal except that it will omit the submission of the results to the server The following files should be present in $workdir as specified in the configuration it may help to try out the ‘ssh’ command with one or more ‘ v’ options You should get detailed output concerning your SSH configuration and the authentication process The only thing left is to automate the execution of the fate sh script and the synchronisation of the samples directory Uploading new samples to the fate suite *****************************************If you need a sample uploaded send a mail to samples request This is for developers who have an account on the fate suite server If you upload new please make sure they are as small as space on each network bandwidth and so on benefit from smaller test cases Also keep in mind older checkouts use existing sample that means in practice generally do not remove or overwrite files as it likely would break older checkouts or releases Also all needed samples for a commit should be ideally before the push If you need an account for frequently uploading samples or you wish to help others by doing that send a mail to ffmpeg devel rsync vauL Duo ug o o w
Definition: fate.txt:150
avformat.h
pkt
static AVPacket pkt
Definition: demuxing_decoding.c:54
IEC61937_TRUEHD
@ IEC61937_TRUEHD
TrueHD data.
Definition: spdif.h:52
IEC61937_ATRACX
@ IEC61937_ATRACX
ATRAC3+ data.
Definition: spdif.h:46
IEC61937_ATRAC
@ IEC61937_ATRAC
ATRAC data.
Definition: spdif.h:44
IEC61937_MPEG2_LAYER2_LSF
@ IEC61937_MPEG2_LAYER2_LSF
MPEG-2, layer-2 low sampling frequency.
Definition: spdif.h:39
AVPacket
This structure stores compressed data.
Definition: packet.h:332
IEC61937_MPEG2_AAC
@ IEC61937_MPEG2_AAC
MPEG-2 AAC ADTS.
Definition: spdif.h:37
IEC61937_WMAPRO
@ IEC61937_WMAPRO
WMA 9 Professional data.
Definition: spdif.h:48
spdif_mpeg_pkt_offset
static const uint16_t spdif_mpeg_pkt_offset[2][3]
Definition: spdif.h:55
IEC61937_MPEG2_LAYER3_LSF
@ IEC61937_MPEG2_LAYER3_LSF
MPEG-2, layer-3 low sampling frequency.
Definition: spdif.h:40