Commit f1240107 authored by Sam Hocevar's avatar Sam Hocevar

- je ne ferai plus de commits d�biles � 5h du mat

 - je ne ferai plus de commits d�biles � 5h du mat
 - je ne ferai plus de commits d�biles � 5h du mat
 - je ne ferai plus de commits d�biles � 5h du mat
 - je ne ferai plus de commits d�biles � 5h du mat
 - je ne ferai plus de commits d�biles � 5h du mat
 - je ne ferai plus de commits d�biles � 5h du mat
 - je ne ferai plus de commits d�biles � 5h du mat
 - je ne ferai plus de commits d�biles � 5h du mat
 - je ne ferai plus de commits d�biles � 5h du mat
parent 5e22d74d
/*******************************************************************************
/******************************************************************************
* input.h: input thread interface
* (c)1999 VideoLAN
*******************************************************************************/
******************************************************************************/
/* needs : "netlist.h", "config.h", "mtime.h" */
/* ?? missing:
* tables version control */
/*******************************************************************************
/******************************************************************************
* External structures
*******************************************************************************
******************************************************************************
* These structures, required here only as pointers destinations, are declared
* in other headers.
*******************************************************************************/
struct video_cfg_s; /* video configuration descriptor */
struct vout_thread_s; /* video output thread */
struct stream_descriptor_s; /* PSI tables */
******************************************************************************/
struct video_cfg_s; /* video configuration descriptor */
struct vout_thread_s; /* video output thread */
struct stream_descriptor_s; /* PSI tables */
/*******************************************************************************
/******************************************************************************
* Constants related to input
*******************************************************************************/
#define TS_PACKET_SIZE 188 /* size of a TS packet */
#define PES_HEADER_SIZE 14 /* size of the first part of a PES header */
#define PSI_SECTION_SIZE 4096 /* Maximum size of a PSI section */
******************************************************************************/
#define TS_PACKET_SIZE 188 /* size of a TS packet */
#define PES_HEADER_SIZE 14 /* size of the first part of a PES header */
#define PSI_SECTION_SIZE 4096 /* Maximum size of a PSI section */
/*******************************************************************************
/******************************************************************************
* ts_packet_t
*******************************************************************************
******************************************************************************
* Describe a TS packet.
*******************************************************************************/
******************************************************************************/
typedef struct ts_packet_struct
{
/* Nothing before this line, the code relies on that */
byte_t buffer[TS_PACKET_SIZE]; /* raw TS data packet */
byte_t buffer[TS_PACKET_SIZE]; /* raw TS data packet */
/* Decoders information */
unsigned int i_payload_start;
/* start of the PES payload in this packet */
unsigned int i_payload_end; /* guess ? :-) */
/* start of the PES payload in this packet */
unsigned int i_payload_end; /* guess ? :-) */
/* Used to chain the TS packets that carry data for a same PES or PSI */
struct ts_packet_struct * p_prev_ts;
......@@ -46,78 +46,78 @@ typedef struct ts_packet_struct
} ts_packet_t;
/*******************************************************************************
/******************************************************************************
* pes_packet_t
*******************************************************************************
******************************************************************************
* Describes an PES packet, with its properties, and pointers to the TS packets
* containing it.
*******************************************************************************/
******************************************************************************/
typedef struct
{
/* PES properties */
boolean_t b_data_loss; /* The previous (at least) PES packet
* has been lost. The decoders will have to find a way to recover. */
boolean_t b_data_alignment; /* used to find the beginning of a
* video or audio unit */
boolean_t b_has_pts; /* is the following field set ? */
mtime_t i_pts; /* the PTS for this packet (if set above) */
boolean_t b_data_loss; /* The previous (at least) PES packet
* has been lost. The decoders will have to find a way to recover. */
boolean_t b_data_alignment; /* used to find the beginning of a
* video or audio unit */
boolean_t b_has_pts; /* is the following field set ? */
mtime_t i_pts; /* the PTS for this packet (if set above) */
boolean_t b_random_access;
/* if TRUE, in the payload of this packet, there is the first byte
* of a video sequence header, or the first byte of an audio frame.
*/
u8 i_stream_id; /* payload type and id */
int i_pes_size; /* size of the current PES packet */
int i_ts_packets; /* number of TS packets in this PES */
/* if TRUE, in the payload of this packet, there is the first byte
* of a video sequence header, or the first byte of an audio frame.
*/
u8 i_stream_id; /* payload type and id */
int i_pes_size; /* size of the current PES packet */
int i_ts_packets; /* number of TS packets in this PES */
/* Demultiplexer environment */
boolean_t b_discard_payload; /* is the packet messed up ? */
byte_t * p_pes_header; /* pointer to the PES header */
byte_t * p_pes_header_save; /* temporary buffer */
boolean_t b_discard_payload; /* is the packet messed up ? */
byte_t * p_pes_header; /* pointer to the PES header */
byte_t * p_pes_header_save; /* temporary buffer */
/* Pointers to TS packets (TS packets are then linked by the p_prev_ts and
p_next_ts fields of the ts_packet_t struct) */
ts_packet_t * p_first_ts; /* The first TS packet containing this
* PES (used by decoders). */
ts_packet_t * p_last_ts; /* The last TS packet gathered at present
* (used by the demultiplexer). */
ts_packet_t * p_first_ts; /* The first TS packet containing this
* PES (used by decoders). */
ts_packet_t * p_last_ts; /* The last TS packet gathered at present
* (used by the demultiplexer). */
} pes_packet_t;
/*******************************************************************************
/******************************************************************************
* psi_section_t
*******************************************************************************
******************************************************************************
* Describes a PSI section. Beware, it doesn't contain pointers to the TS
* packets that contain it as for a PES, but the data themselves
*******************************************************************************/
******************************************************************************/
typedef struct
{
byte_t buffer[PSI_SECTION_SIZE];
boolean_t b_running_section; /* Is there a section being decoded ? */
boolean_t b_running_section; /* Is there a section being decoded ? */
u16 i_length;
u16 i_current_position;
} psi_section_t;
/*******************************************************************************
/******************************************************************************
* es_descriptor_t: elementary stream descriptor
*******************************************************************************
******************************************************************************
* Describes an elementary stream, and includes fields required to handle and
* demultiplex this elementary stream.
*******************************************************************************/
******************************************************************************/
typedef struct
{
u16 i_id; /* stream ID, PID for TS streams */
u8 i_type; /* stream type */
u16 i_id; /* stream ID, PID for TS streams */
u8 i_type; /* stream type */
boolean_t b_pcr; /* does the stream include a PCR ? */
boolean_t b_pcr; /* does the stream include a PCR ? */
/* ?? b_pcr will be replaced by something else: since a PCR can't be shared
* between several ES, we will probably store the PCR fields directly here,
* and one of those fields will probably (again) be used as a test of the
* PCR presence */
boolean_t b_psi; /* does the stream have to be handled by the
PSI decoder ? */
boolean_t b_psi; /* does the stream have to be handled by the
PSI decoder ? */
/* Markers */
int i_continuity_counter;
boolean_t b_discontinuity;
......@@ -125,16 +125,16 @@ typedef struct
/* PES packets */
pes_packet_t * p_pes_packet;
/* current PES packet we are gathering */
/* current PES packet we are gathering */
/* PSI packets */
psi_section_t * p_psi_section; /* idem for a PSI stream */
psi_section_t * p_psi_section; /* idem for a PSI stream */
/* Decoder informations */
void * p_dec; /* p_dec is void *, since we don't know a
* priori whether it is adec_thread_t or
* vdec_thread_t. We will use explicit
* casts. */
void * p_dec; /* p_dec is void *, since we don't know a
* priori whether it is adec_thread_t or
* vdec_thread_t. We will use explicit
* casts. */
/* ?? video stream descriptor ? */
/* ?? audio stream descriptor ? */
......@@ -145,10 +145,10 @@ typedef struct
#ifdef STATS
/* Stats */
count_t c_bytes; /* total bytes read */
count_t c_payload_bytes; /* total of payload usefull bytes */
count_t c_packets; /* total packets read */
count_t c_invalid_packets; /* invalid packets read */
count_t c_bytes; /* total bytes read */
count_t c_payload_bytes;/* total of payload usefull bytes */
count_t c_packets; /* total packets read */
count_t c_invalid_packets; /* invalid packets read */
/* ?? ... other stats */
#endif
} es_descriptor_t;
......@@ -156,33 +156,32 @@ typedef struct
/* Special PID values - note that the PID is only on 13 bits, and that values
* greater than 0x1fff have no meaning in a stream */
#define PROGRAM_ASSOCIATION_TABLE_PID 0x0000
#define CONDITIONNAL_ACCESS_TABLE_PID 0x0001 /* not used */
#define EMPTY_PID 0xffff /* empty record in a table */
#define CONDITIONNAL_ACCESS_TABLE_PID 0x0001 /* not used */
#define EMPTY_PID 0xffff /* empty record in a table */
/* ES streams types - see ISO/IEC 13818-1 table 2-29 numbers */
#define MPEG1_VIDEO_ES 0x01
#define MPEG2_VIDEO_ES 0x02
#define MPEG1_AUDIO_ES 0x03
#define MPEG2_AUDIO_ES 0x04
#define AC3_AUDIO_ES 0x05
/*******************************************************************************
/******************************************************************************
* program_descriptor_t
*******************************************************************************
******************************************************************************
* Describes a program and list associated elementary streams. It is build by
* the PSI decoder upon the informations carried in program map sections
*******************************************************************************/
******************************************************************************/
typedef struct
{
/* Program characteristics */
u16 i_number; /* program number */
u8 i_version; /* version number */
boolean_t b_is_ok; /* Is the description up to date ?*/
u16 i_pcr_pid; /* PCR ES */
u16 i_number; /* program number */
u8 i_version; /* version number */
boolean_t b_is_ok; /* Is the description up to date ?*/
u16 i_pcr_pid; /* PCR ES */
int i_es_number;
es_descriptor_t ** ap_es; /* array of pointers to ES */
es_descriptor_t ** ap_es; /* array of pointers to ES */
#ifdef DVB_EXTENSIONS
/* Service Descriptor (program name) */
......@@ -200,63 +199,69 @@ typedef struct
#endif
} pgrm_descriptor_t;
/*******************************************************************************
/******************************************************************************
* pcr_descriptor_t
*******************************************************************************
******************************************************************************
* Contains informations used to synchronise the decoder with the server
*******************************************************************************/
******************************************************************************/
typedef struct pcr_descriptor_struct
{
vlc_mutex_t lock; /* pcr modification lock */
vlc_mutex_t lock; /* pcr modification lock */
mtime_t delta_clock;
mtime_t delta_decode;
/* represents decoder_time - pcr_time in usecondes */
/* represents decoder_time - pcr_time in usecondes */
mtime_t last_pcr;
count_t c_average;
/* counter used to compute dynamic average values */
/* counter used to compute dynamic average values */
count_t c_pts;
#ifdef STATS
/* Stats */
count_t c_average_jitter;
mtime_t max_jitter; /* the evalueted maximum jitter */
mtime_t average_jitter; /* the evalueted average jitter */
count_t c_pcr; /* the number of PCR which have been decoded */
mtime_t max_jitter; /* the evalueted maximum jitter */
mtime_t average_jitter; /* the evalueted average jitter */
count_t c_pcr; /* the number of PCR which have been decoded */
#endif
} pcr_descriptor_t;
/*******************************************************************************
/******************************************************************************
* stream_descriptor_t
*******************************************************************************
******************************************************************************
* Describes a transport stream and list its associated programs. Build upon
* the informations carried in program association sections
*******************************************************************************/
******************************************************************************/
typedef struct
{
u16 i_stream_id; /* stream id */
u16 i_stream_id; /* stream id */
/* Program Association Table status */
u8 i_PAT_version; /* version number */
boolean_t b_is_PAT_complete; /* Is the PAT complete ?*/
u8 i_known_PAT_sections; /* Number of section we received so far */
byte_t a_known_PAT_sections[32]; /* Already received sections */
u8 i_PAT_version; /* version number */
boolean_t b_is_PAT_complete; /* Is the PAT complete ?*/
u8 i_known_PAT_sections;
/* Number of section we received so far */
byte_t a_known_PAT_sections[32];
/* Already received sections */
/* Program Map Table status */
boolean_t b_is_PMT_complete; /* Is the PMT complete ?*/
u8 i_known_PMT_sections; /* Number of section we received so far */
byte_t a_known_PMT_sections[32]; /* Already received sections */
boolean_t b_is_PMT_complete; /* Is the PMT complete ?*/
u8 i_known_PMT_sections;
/* Number of section we received so far */
byte_t a_known_PMT_sections[32];
/* Already received sections */
/* Service Description Table status */
u8 i_SDT_version; /* version number */
boolean_t b_is_SDT_complete; /* Is the SDT complete ?*/
u8 i_known_SDT_sections; /* Number of section we received so far */
byte_t a_known_SDT_sections[32]; /* Already received sections */
u8 i_SDT_version; /* version number */
boolean_t b_is_SDT_complete; /* Is the SDT complete ?*/
u8 i_known_SDT_sections;
/* Number of section we received so far */
byte_t a_known_SDT_sections[32];
/* Already received sections */
/* Programs description */
int i_pgrm_number; /* Number of program number we have */
pgrm_descriptor_t ** ap_programs; /* Array of pointers to pgrm */
int i_pgrm_number; /* Number of program number we have */
pgrm_descriptor_t ** ap_programs; /* Array of pointers to pgrm */
#ifdef STATS
/* Stats */
......@@ -264,24 +269,24 @@ typedef struct
#endif
} stream_descriptor_t;
/*******************************************************************************
/******************************************************************************
* input_netlist_t
*******************************************************************************/
******************************************************************************/
typedef struct
{
vlc_mutex_t lock; /* netlist modification lock */
vlc_mutex_t lock; /* netlist modification lock */
struct iovec p_ts_free[INPUT_MAX_TS + INPUT_TS_READ_ONCE];
/* FIFO or LIFO of free TS packets */
/* FIFO or LIFO of free TS packets */
ts_packet_t * p_ts_packets;
/* pointer to the first TS packet we allocated */
/* pointer to the first TS packet we allocated */
pes_packet_t * p_pes_free[INPUT_MAX_PES + 1];
/* FIFO or LIFO of free PES packets */
/* FIFO or LIFO of free PES packets */
pes_packet_t * p_pes_packets;
/* pointer to the first PES packet we allocated */
/* pointer to the first PES packet we allocated */
/* To use the efficiency of the scatter/gather IO operations. We implemented it
* in 2 ways, as we don't know yet which one is better : as a FIFO (code
/* To use the efficiency of the scatter/gather IO operations. We implemented
* it in 2 ways, as we don't know yet which one is better : as a FIFO (code
* simplier) or as a LIFO stack (when we doesn't care of the ordering, this
* allow to drastically improve the cache performance) */
#ifdef INPUT_LIFO_TS_NETLIST
......@@ -296,14 +301,14 @@ typedef struct
#endif
} input_netlist_t;
/*******************************************************************************
/******************************************************************************
* input_thread_t
*******************************************************************************
******************************************************************************
* This structure includes all the local static variables of an input thread,
* including the netlist and the ES descriptors
* Note that p_es must be defined as a static table, otherwise we would have to
* update all reference to it each time the table would be reallocated
*******************************************************************************/
******************************************************************************/
/* function pointers */
struct input_thread_struct;
......@@ -316,73 +321,73 @@ typedef void (*f_clean_t)( struct input_thread_struct * );
typedef struct input_thread_struct
{
/* Thread properties and locks */
boolean_t b_die; /* 'die' flag */
boolean_t b_error; /* deadlock */
vlc_thread_t thread_id; /* id for thread functions */
vlc_mutex_t programs_lock; /* programs modification lock */
vlc_mutex_t es_lock; /* es modification lock */
boolean_t b_die; /* 'die' flag */
boolean_t b_error; /* deadlock */
vlc_thread_t thread_id; /* id for thread functions */
vlc_mutex_t programs_lock; /* programs modification lock */
vlc_mutex_t es_lock; /* es modification lock */
/* Input method description */
int i_method; /* input method */
int i_handle; /* file/socket descriptor */
int i_vlan_id; /* id for vlan method */
f_open_t p_open; /* pointer to the opener of the method */
f_read_t p_read; /* pointer to the reading function */
f_clean_t p_clean; /* pointer to the destroying function */
int i_method; /* input method */
int i_handle; /* file/socket descriptor */
int i_vlan_id; /* id for vlan method */
f_open_t p_open; /* pointer to the opener of the method */
f_read_t p_read; /* pointer to the reading function */
f_clean_t p_clean; /* pointer to the destroying function */
/* General stream description */
stream_descriptor_t * p_stream; /* PAT tables */
es_descriptor_t p_es[INPUT_MAX_ES]; /* carried elementary streams */
pcr_descriptor_t * p_pcr; /* PCR struct used for synchronisation */
stream_descriptor_t * p_stream; /* PAT tables */
es_descriptor_t p_es[INPUT_MAX_ES]; /* carried elementary streams */
pcr_descriptor_t * p_pcr; /* PCR struct used for synchronisation */
/* List of streams to demux */
es_descriptor_t * pp_selected_es[INPUT_MAX_SELECTED_ES];
/* Netlists */
input_netlist_t netlist; /* see above */
input_netlist_t netlist; /* see above */
/* ?? default settings for new decoders */
struct aout_thread_s * p_aout; /* audio output thread structure */
#ifdef STATS
/* Stats */
count_t c_loops; /* number of loops */
count_t c_bytes; /* total of bytes read */
count_t c_payload_bytes; /* total of payload useful bytes */
count_t c_ts_packets_read; /* total of packets read */
count_t c_ts_packets_trashed; /* total of trashed packets */
count_t c_loops; /* number of loops */
count_t c_bytes; /* total of bytes read */
count_t c_payload_bytes; /* total of payload useful bytes */
count_t c_ts_packets_read; /* total of packets read */
count_t c_ts_packets_trashed; /* total of trashed packets */
/* ?? ... other stats */
#endif
} input_thread_t;
/* Input methods */
#define INPUT_METHOD_NONE 0 /* input thread is inactive */
#define INPUT_METHOD_TS_FILE 10 /* TS stream is read from a file */
#define INPUT_METHOD_TS_UCAST 20 /* TS UDP unicast */
#define INPUT_METHOD_TS_MCAST 21 /* TS UDP multicast */
#define INPUT_METHOD_TS_BCAST 22 /* TS UDP broadcast */
#define INPUT_METHOD_TS_VLAN_BCAST 32 /* TS UDP broadcast with VLANs */
/*******************************************************************************
#define INPUT_METHOD_NONE 0 /* input thread is inactive */
#define INPUT_METHOD_TS_FILE 10 /* TS stream is read from a file */
#define INPUT_METHOD_TS_UCAST 20 /* TS UDP unicast */
#define INPUT_METHOD_TS_MCAST 21 /* TS UDP multicast */
#define INPUT_METHOD_TS_BCAST 22 /* TS UDP broadcast */
#define INPUT_METHOD_TS_VLAN_BCAST 32 /* TS UDP broadcast with VLANs */
/******************************************************************************
* input_cfg_t: input thread configuration structure
*******************************************************************************
******************************************************************************
* This structure is passed as a parameter to input_CreateTtread(). It includes
* several fields describing potential properties of a new object.
* The 'i_properties' field allow to set only a subset of the required
* properties, asking the called function to use default settings for
* the other ones.
*******************************************************************************/
******************************************************************************/
typedef struct input_cfg_struct
{
u64 i_properties;
/* Input method properties */
int i_method; /* input method */
char * psz_filename; /* filename */
char * psz_hostname; /* server hostname */
char * psz_ip; /* server IP */
int i_port; /* port */
int i_vlan; /* vlan number */
int i_method; /* input method */
char * psz_filename; /* filename */
char * psz_hostname; /* server hostname */
char * psz_ip; /* server IP */
int i_port; /* port */
int i_vlan; /* vlan number */
/* ??... default settings for new decoders */
struct aout_thread_s * p_aout; /* audio output thread structure */
......@@ -397,9 +402,9 @@ typedef struct input_cfg_struct
#define INPUT_CFG_PORT (1 << 10)
#define INPUT_CFG_VLAN (1 << 11)
/******************************************************************************
/*****************************************************************************
* Prototypes
******************************************************************************/
*****************************************************************************/
input_thread_t *input_CreateThread ( input_cfg_t *p_cfg );
void input_DestroyThread ( input_thread_t *p_input );
......
......@@ -388,8 +388,8 @@ static void IdentifyPES( gdec_thread_t *p_gdec, pes_packet_t *p_pes, int i_strea
if( i_stream_id == 0xbd )
{
/* Dolby AC-3 stream - might be specific to DVD PS streams */
i_type = AC3_AUDIO_ES;
intf_DbgMsg("PES %p identified as AC3\n", p_pes);
i_type = MPEG2_AUDIO_ES;
intf_DbgMsg("PES %p identified as AUDIO AC3\n", p_pes);
}
else if( (i_stream_id & 0xe0) == 0xc0 )
{
......@@ -398,7 +398,7 @@ static void IdentifyPES( gdec_thread_t *p_gdec, pes_packet_t *p_pes, int i_strea
* an ISO/IEC 13818-3 is capable of decoding an ISO/IEC 11172-3 stream,
* the first one is used */
i_type = MPEG2_AUDIO_ES;
intf_DbgMsg("PES %p identified as AUDIO\n", p_pes);
intf_DbgMsg("PES %p identified as AUDIO MPEG\n", p_pes);
}
else if( (i_stream_id & 0xf0) == 0xe0 )
{
......
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