bs_agg.c File Reference

#include <gpac/filters.h>
#include <gpac/constants.h>
#include <gpac/internal/media_dev.h>
#include <gpac/mpeg4_odf.h>

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Data Structures
struct	NALStore
struct	LHVCLayerInfo
struct	BSAggOut
struct	BSAggCtx

Macros
#define	MAX_LID   64
#define	MAX_TID   7
#define	GOTO_ERR(_e)   { e = _e; goto err_exit; }
#define	OFFS(_n)   #_n, offsetof(BSAggCtx, _n)

Functions
static GF_Err	bsagg_transfer_avc_params (GF_AVCConfig *cfg_out, GF_AVCConfig *cfg_in)
static GF_Err	avc_rewrite_pid_config (BSAggCtx *ctx, BSAggOut *pctx)
static GF_Err	bsagg_transfer_param_array (GF_List *array_out, GF_List *array_in)
static GF_Err	vvc_hevc_rewrite_pid_config (BSAggCtx *ctx, BSAggOut *pctx)
static GF_Err	none_rewrite_pid_config (BSAggCtx *ctx, BSAggOut *c_opid)
static GF_Err	none_process (BSAggCtx *ctx, BSAggOut *c_opid)
static Bool	bsagg_filter_prop (void *cbk, u32 prop_4cc, const char *prop_name, const GF_PropertyValue *src_prop)
static void	bsagg_set_linf (BSAggOut *pctx)
static GF_Err	nalu_process (BSAggCtx *ctx, BSAggOut *pctx, u32 codec_type)
static GF_Err	avc_process (BSAggCtx *ctx, BSAggOut *c_opid)
static GF_Err	hevc_process (BSAggCtx *ctx, BSAggOut *c_opid)
static GF_Err	vvc_process (BSAggCtx *ctx, BSAggOut *c_opid)
static Bool	bs_agg_is_base (BSAggOut *pctx, u32 codec_id, u32 dep_id, u32 rec_level)
static BSAggOut *	bs_agg_get_base (BSAggCtx *ctx, u32 codec_id, u32 dep_id)
static void	bs_agg_reset_stream (BSAggOut *pctx)
static GF_Err	bs_agg_configure_pid (GF_Filter *filter, GF_FilterPid *pid, Bool is_remove)
static GF_Err	bs_agg_process (GF_Filter *filter)
static GF_Err	bs_agg_initialize (GF_Filter *filter)
static void	bs_agg_finalize (GF_Filter *filter)
const GF_FilterRegister *	bsagg_register (GF_FilterSession *session)

Variables
static GF_FilterArgs	BSAggArgs []
static const GF_FilterCapability	BSAggCaps []
GF_FilterRegister	BSAggRegister

---

Data Structure Documentation

NALStore

struct NALStore

Data Fields
u8 *	data
u32	size
u32	alloc_size
u32	lid
u32	tid

LHVCLayerInfo

struct LHVCLayerInfo

Data Fields
u32	layer_id_plus_one
u32	min_temporal_id
u32	max_temporal_id

_bs_agg_ctx

struct _bs_agg_ctx

Data Fields
Bool	svcqid
GF_Filter *	filter
GF_List *	pids

Macro Definition Documentation

MAX_LID

#define MAX_LID   64

MAX_TID

#define MAX_TID   7

GOTO_ERR

#define GOTO_ERR

(

_e

)

{ e = _e; goto err_exit; }

OFFS

#define OFFS

(

_n

)

#_n, offsetof(BSAggCtx, _n)

Function Documentation

bsagg_transfer_avc_params()

static GF_Err bsagg_transfer_avc_params ( GF_AVCConfig *  cfg_out, GF_AVCConfig *  cfg_in  )

static

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avc_rewrite_pid_config()

static GF_Err avc_rewrite_pid_config ( BSAggCtx *  ctx, BSAggOut *  pctx  )

static

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bsagg_transfer_param_array()

static GF_Err bsagg_transfer_param_array ( GF_List *  array_out, GF_List *  array_in  )

static

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vvc_hevc_rewrite_pid_config()

static GF_Err vvc_hevc_rewrite_pid_config ( BSAggCtx *  ctx, BSAggOut *  pctx  )

static

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none_rewrite_pid_config()

static GF_Err none_rewrite_pid_config ( BSAggCtx *  ctx, BSAggOut *  c_opid  )

static

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none_process()

static GF_Err none_process ( BSAggCtx *  ctx, BSAggOut *  c_opid  )

static

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bsagg_filter_prop()

static Bool bsagg_filter_prop ( void *  cbk, u32  prop_4cc, const char *  prop_name, const GF_PropertyValue *  src_prop  )

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bsagg_set_linf()

static void bsagg_set_linf ( BSAggOut *  pctx )

static

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nalu_process()

static GF_Err nalu_process ( BSAggCtx *  ctx, BSAggOut *  pctx, u32  codec_type  )

static

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avc_process()

static GF_Err avc_process ( BSAggCtx *  ctx, BSAggOut *  c_opid  )

static

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hevc_process()

static GF_Err hevc_process ( BSAggCtx *  ctx, BSAggOut *  c_opid  )

static

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vvc_process()

static GF_Err vvc_process ( BSAggCtx *  ctx, BSAggOut *  c_opid  )

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bs_agg_is_base()

static Bool bs_agg_is_base ( BSAggOut *  pctx, u32  codec_id, u32  dep_id, u32  rec_level  )

static

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bs_agg_get_base()

static BSAggOut* bs_agg_get_base ( BSAggCtx *  ctx, u32  codec_id, u32  dep_id  )

static

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bs_agg_reset_stream()

static void bs_agg_reset_stream ( BSAggOut *  pctx )

static

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bs_agg_configure_pid()

static GF_Err bs_agg_configure_pid ( GF_Filter *  filter, GF_FilterPid *  pid, Bool  is_remove  )

static

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bs_agg_process()

static GF_Err bs_agg_process ( GF_Filter *  filter )

static

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bs_agg_initialize()

static GF_Err bs_agg_initialize ( GF_Filter *  filter )

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bs_agg_finalize()

static void bs_agg_finalize ( GF_Filter *  filter )

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bsagg_register()

const GF_FilterRegister* bsagg_register

(

GF_FilterSession *

session

)

Variable Documentation

BSAggArgs

GF_FilterArgs BSAggArgs[]

static

Initial value:

=
{
        { OFFS(svcqid), "use qualityID instead of dependencyID for SVC splitting", GF_PROP_BOOL, "false", NULL, 0},
        {0}
}

BSAggCaps

const GF_FilterCapability BSAggCaps[]

static

Initial value:

=
{
        
        CAP_UINT(GF_CAPS_INPUT_EXCLUDED, GF_PROP_PID_STREAM_TYPE, GF_STREAM_FILE),
        CAP_BOOL(GF_CAPS_INPUT_EXCLUDED, GF_PROP_PID_UNFRAMED, GF_TRUE),
        CAP_UINT(GF_CAPS_INPUT_EXCLUDED, GF_PROP_PID_CODECID, GF_CODECID_NONE),
        CAP_UINT(GF_CAPS_OUTPUT_EXCLUDED, GF_PROP_PID_STREAM_TYPE, GF_STREAM_FILE),
        CAP_UINT(GF_CAPS_OUTPUT_EXCLUDED, GF_PROP_PID_CODECID, GF_CODECID_NONE),
}

BSAggRegister

GF_FilterRegister BSAggRegister

Initial value:

= {
        .name = "bsagg",
 
        GF_FS_SET_HELP("This filter aggregates layers and sublayers into a single output PID.\n"
        "\n"
        "The filter supports AVC|H264, HEVC and VVC stream reconstruction, and is passthrough for other codec types.\n"
        "\n"
        "Aggregation is based on temporalID value (start from 1) and layerID value (start from 0).\n"
        "For AVC|H264, layerID is the dependency value, or quality value if `svcqid` is set.\n"
        "\n"
        "The filter can also be used on AVC and HEVC DolbyVision dual-streams to aggregate base stream and DV RPU/EL.\n"
        "\n"
        "The filter does not forward aggregator or extractor NAL units.\n"
        )
        .private_size = sizeof(BSAggCtx),
        .max_extra_pids = 0xFFFFFFFF,
        .flags = GF_FS_REG_EXPLICIT_ONLY|GF_FS_REG_ALLOW_CYCLIC,
        .args = BSAggArgs,
        SETCAPS(BSAggCaps),
        .initialize = bs_agg_initialize,
        .finalize = bs_agg_finalize,
        .configure_pid = bs_agg_configure_pid,
        .process = bs_agg_process,
        .hint_class_type = GF_FS_CLASS_STREAM
}