reframe_mpgvid.c File Reference

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

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Data Structures
struct	MPGVidIdx
struct	GF_MPGVidDmxCtx

Macros
#define	MIN_HDR_STORE   12
#define	OFFS(_n)   #_n, offsetof(GF_MPGVidDmxCtx, _n)

Functions
GF_Err	mpgviddmx_configure_pid (GF_Filter *filter, GF_FilterPid *pid, Bool is_remove)
static void	mpgviddmx_check_dur (GF_Filter *filter, GF_MPGVidDmxCtx *ctx)
static void	mpgviddmx_enqueue_or_dispatch (GF_MPGVidDmxCtx *ctx, GF_FilterPacket *pck, Bool flush_ref, Bool is_eos)
static void	mpgviddmx_check_pid (GF_Filter *filter, GF_MPGVidDmxCtx *ctx, u32 vosh_size, u8 *data)
static Bool	mpgviddmx_process_event (GF_Filter *filter, const GF_FilterEvent *evt)
static GFINLINE void	mpgviddmx_update_time (GF_MPGVidDmxCtx *ctx)
static s32	mpgviddmx_next_start_code (u8 *data, u32 size)
GF_Err	mpgviddmx_process (GF_Filter *filter)
static GF_Err	mpgviddmx_initialize (GF_Filter *filter)
static void	mpgviddmx_finalize (GF_Filter *filter)
u32	gf_m4v_parser_get_obj_type (GF_M4VParser *m4v)
static const char *	mpgvdmx_probe_data (const u8 *data, u32 size, GF_FilterProbeScore *score)
const GF_FilterRegister *	rfmpgvid_register (GF_FilterSession *session)

Variables
static const GF_FilterCapability	MPGVidDmxCaps []
static const GF_FilterArgs	MPGVidDmxArgs []
GF_FilterRegister	MPGVidDmxRegister

---

Data Structure Documentation

MPGVidIdx

struct MPGVidIdx

Data Fields
u64	pos
Double	start_time

GF_MPGVidDmxCtx

struct GF_MPGVidDmxCtx

Collaboration diagram for GF_MPGVidDmxCtx:

Data Fields
GF_Fraction	fps
Double	index
Bool	vfr
Bool	importer
Bool	notime
GF_FilterPid *	ipid
GF_FilterPid *	opid
GF_BitStream *	bs
u64	cts
u64	dts
u64	prev_dts
u32	width
u32	height
GF_Fraction64	duration
Double	start_range
Bool	in_seek
u32	timescale
u32	resume_from
GF_Fraction	cur_fps
Bool	is_mpg12
Bool	forced_packed
GF_M4VParser *	vparser
GF_M4VDecSpecInfo	dsi
u32	b_frames
Bool	is_packed
Bool	is_vfr
GF_List *	pck_queue
u64	last_ref_cts
Bool	frame_started
u32	nb_i
u32	nb_p
u32	nb_b
u32	nb_frames
u32	max_b
u32	bytes_in_header
char *	hdr_store
u32	hdr_store_size
u32	hdr_store_alloc
Bool	is_playing
Bool	is_file
Bool	file_loaded
Bool	initial_play_done
Bool	input_is_au_start
Bool	input_is_au_end
Bool	recompute_cts
Bool	copy_props
GF_FilterPacket *	src_pck
MPGVidIdx *	indexes
u32	index_alloc_size
u32	index_size
u32	bitrate
Bool	trash_trailer

Macro Definition Documentation

MIN_HDR_STORE

#define MIN_HDR_STORE   12

OFFS

#define OFFS

(

_n

)

#_n, offsetof(GF_MPGVidDmxCtx, _n)

Function Documentation

mpgviddmx_configure_pid()

GF_Err mpgviddmx_configure_pid	(	GF_Filter *	filter,
		GF_FilterPid *	pid,
		Bool	is_remove
	)

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mpgviddmx_check_dur()

static void mpgviddmx_check_dur ( GF_Filter *  filter, GF_MPGVidDmxCtx *  ctx  )

static

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mpgviddmx_enqueue_or_dispatch()

static void mpgviddmx_enqueue_or_dispatch ( GF_MPGVidDmxCtx *  ctx, GF_FilterPacket *  pck, Bool  flush_ref, Bool  is_eos  )

static

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mpgviddmx_check_pid()

static void mpgviddmx_check_pid ( GF_Filter *  filter, GF_MPGVidDmxCtx *  ctx, u32  vosh_size, u8 *  data  )

static

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mpgviddmx_process_event()

static Bool mpgviddmx_process_event ( GF_Filter *  filter, const GF_FilterEvent *  evt  )

static

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mpgviddmx_update_time()

static GFINLINE void mpgviddmx_update_time ( GF_MPGVidDmxCtx *  ctx )

static

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mpgviddmx_next_start_code()

static s32 mpgviddmx_next_start_code ( u8 *  data, u32  size  )

static

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mpgviddmx_process()

GF_Err mpgviddmx_process

(

GF_Filter *

filter

)

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mpgviddmx_initialize()

static GF_Err mpgviddmx_initialize ( GF_Filter *  filter )

static

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mpgviddmx_finalize()

static void mpgviddmx_finalize ( GF_Filter *  filter )

static

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gf_m4v_parser_get_obj_type()

u32 gf_m4v_parser_get_obj_type

(

GF_M4VParser *

m4v

)

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mpgvdmx_probe_data()

static const char * mpgvdmx_probe_data ( const u8 *  data, u32  size, GF_FilterProbeScore *  score  )

static

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rfmpgvid_register()

const GF_FilterRegister * rfmpgvid_register

(

GF_FilterSession *

session

)

Variable Documentation

MPGVidDmxCaps

const GF_FilterCapability MPGVidDmxCaps[]

static

Initial value:

=
{
        CAP_UINT(GF_CAPS_INPUT, GF_PROP_PID_STREAM_TYPE, GF_STREAM_FILE),
        CAP_STRING(GF_CAPS_INPUT, GF_PROP_PID_FILE_EXT, "cmp|m1v|m2v|m4v"),
        CAP_STRING(GF_CAPS_INPUT, GF_PROP_PID_MIME, "video/mp4v-es|video/mpgv-es"),
        CAP_UINT(GF_CAPS_OUTPUT_STATIC, GF_PROP_PID_STREAM_TYPE, GF_STREAM_VISUAL),
        CAP_UINT(GF_CAPS_OUTPUT_STATIC, GF_PROP_PID_CODECID, GF_CODECID_MPEG4_PART2),
        CAP_UINT(GF_CAPS_OUTPUT_STATIC, GF_PROP_PID_CODECID, GF_CODECID_MPEG1),
        CAP_UINT(GF_CAPS_OUTPUT_STATIC, GF_PROP_PID_CODECID, GF_CODECID_MPEG2_SIMPLE),
        CAP_UINT(GF_CAPS_OUTPUT_STATIC, GF_PROP_PID_CODECID, GF_CODECID_MPEG2_SPATIAL),
        CAP_UINT(GF_CAPS_OUTPUT_STATIC, GF_PROP_PID_CODECID, GF_CODECID_MPEG2_SNR),
        CAP_UINT(GF_CAPS_OUTPUT_STATIC, GF_PROP_PID_CODECID, GF_CODECID_MPEG2_MAIN),
        CAP_UINT(GF_CAPS_OUTPUT_STATIC, GF_PROP_PID_CODECID, GF_CODECID_MPEG2_HIGH),
        CAP_UINT(GF_CAPS_OUTPUT_STATIC, GF_PROP_PID_CODECID, GF_CODECID_MPEG2_422),
        CAP_BOOL(GF_CAPS_OUTPUT_STATIC_EXCLUDED, GF_PROP_PID_UNFRAMED, GF_TRUE),
        {0},
        CAP_UINT(GF_CAPS_INPUT,GF_PROP_PID_STREAM_TYPE, GF_STREAM_VISUAL),
        CAP_UINT(GF_CAPS_INPUT,GF_PROP_PID_CODECID, GF_CODECID_MPEG4_PART2),
        CAP_UINT(GF_CAPS_INPUT,GF_PROP_PID_CODECID, GF_CODECID_MPEG1),
        CAP_UINT(GF_CAPS_INPUT,GF_PROP_PID_CODECID, GF_CODECID_MPEG2_SPATIAL),
        CAP_UINT(GF_CAPS_INPUT,GF_PROP_PID_CODECID, GF_CODECID_MPEG2_SNR),
        CAP_UINT(GF_CAPS_INPUT,GF_PROP_PID_CODECID, GF_CODECID_MPEG2_SIMPLE),
        CAP_UINT(GF_CAPS_INPUT,GF_PROP_PID_CODECID, GF_CODECID_MPEG2_MAIN),
        CAP_UINT(GF_CAPS_INPUT,GF_PROP_PID_CODECID, GF_CODECID_MPEG2_HIGH),
        CAP_UINT(GF_CAPS_INPUT,GF_PROP_PID_CODECID, GF_CODECID_MPEG2_422),
        CAP_BOOL(GF_CAPS_INPUT,GF_PROP_PID_UNFRAMED, GF_TRUE),
}

MPGVidDmxArgs

const GF_FilterArgs MPGVidDmxArgs[]

static

Initial value:

=
{
        { OFFS(fps), "import frame rate (0 default to FPS from bitstream or 25 Hz)", GF_PROP_FRACTION, "0/1000", NULL, 0},
        { OFFS(index), "indexing window length. If 0, bitstream is not probed for duration. A negative value skips the indexing if the source file is larger than 20M (slows down importers) unless a play with start range > 0 is issued", GF_PROP_DOUBLE, "-1.0", NULL, 0},
        { OFFS(vfr), "set variable frame rate import", GF_PROP_BOOL, "false", NULL, GF_FS_ARG_HINT_ADVANCED},
        { OFFS(importer), "compatibility with old importer, displays import results", GF_PROP_BOOL, "false", NULL, GF_FS_ARG_HINT_ADVANCED},
        { OFFS(notime), "ignore input timestamps, rebuild from 0", GF_PROP_BOOL, "false", NULL, GF_FS_ARG_HINT_ADVANCED},
        {0}
}

MPGVidDmxRegister

GF_FilterRegister MPGVidDmxRegister

Initial value:

= {
        .name = "rfmpgvid",
 
        GF_FS_SET_HELP("This filter parses MPEG-1/2 and MPEG-4 part 2 video files/data and outputs corresponding video PID and frames.\n"
                "Note: The filter uses negative CTS offsets: CTS is correct, but some frames may have DTS greater than CTS.")
        .private_size = sizeof(GF_MPGVidDmxCtx),
        .args = MPGVidDmxArgs,
        .initialize = mpgviddmx_initialize,
        .finalize = mpgviddmx_finalize,
        SETCAPS(MPGVidDmxCaps),
        .configure_pid = mpgviddmx_configure_pid,
        .process = mpgviddmx_process,
        .probe_data = mpgvdmx_probe_data,
        .process_event = mpgviddmx_process_event,
        .hint_class_type = GF_FS_CLASS_FRAMING
}