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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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<title>Riff utilities: GStreamer Base Plugins 1.0 Library Reference Manual</title>
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<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
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<link rel="home" href="index.html" title="GStreamer Base Plugins 1.0 Library Reference Manual">
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<link rel="up" href="gstreamer-riff.html" title="Riff Media Library">
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<link rel="prev" href="gstreamer-riff.html" title="Riff Media Library">
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<link rel="next" href="gstreamer-rtp.html" title="RTP Library">
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<meta name="generator" content="GTK-Doc V1.27 (XML mode)">
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<link rel="stylesheet" href="style.css" type="text/css">
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</head>
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<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
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Description
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Riff utilities
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Riff utilities — Riff fileformat utillity functions.
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Functions
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GstCaps *
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gst_riff_create_audio_caps ()
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GstCaps *
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gst_riff_create_audio_template_caps ()
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GstCaps *
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gst_riff_create_iavs_caps ()
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GstCaps *
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gst_riff_create_iavs_template_caps ()
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GstCaps *
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gst_riff_create_video_caps ()
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GstCaps *
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gst_riff_create_video_template_caps ()
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void
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gst_riff_init ()
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gboolean
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gst_riff_parse_chunk ()
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gboolean
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gst_riff_parse_file_header ()
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void
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gst_riff_parse_info ()
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gboolean
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gst_riff_parse_strf_auds ()
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gboolean
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gst_riff_parse_strf_iavs ()
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gboolean
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gst_riff_parse_strf_vids ()
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gboolean
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gst_riff_parse_strh ()
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GstFlowReturn
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gst_riff_read_chunk ()
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Includes
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#include <gst/riff/riff-media.h>
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Description
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A collection of functions to handle riff base files, such as avi, wav and
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asf.
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Functions
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gst_riff_create_audio_caps ()
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GstCaps *
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gst_riff_create_audio_caps (guint16 codec_id,
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gst_riff_strh *strh,
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gst_riff_strf_auds *strf,
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GstBuffer *strf_data,
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GstBuffer *strd_data,
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char **codec_name,
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gint channel_reorder_map[18]);
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gst_riff_create_audio_template_caps ()
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GstCaps *
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gst_riff_create_audio_template_caps (void);
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gst_riff_create_iavs_caps ()
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GstCaps *
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gst_riff_create_iavs_caps (guint32 codec_fcc,
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gst_riff_strh *strh,
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gst_riff_strf_iavs *strf,
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GstBuffer *strf_data,
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GstBuffer *strd_data,
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char **codec_name);
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gst_riff_create_iavs_template_caps ()
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GstCaps *
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gst_riff_create_iavs_template_caps (void);
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gst_riff_create_video_caps ()
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GstCaps *
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gst_riff_create_video_caps (guint32 codec_fcc,
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gst_riff_strh *strh,
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gst_riff_strf_vids *strf,
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GstBuffer *strf_data,
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GstBuffer *strd_data,
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char **codec_name);
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Parameters
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codec_fcc
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fourCC codec for this codec.
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strh
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pointer to the strh stream header structure.
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strf
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pointer to the strf stream header structure, including any
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data that is within the range of strf.size, but excluding any
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additional data withint this chunk but outside strf.size.
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strf_data
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a GstBuffer containing the additional data in the strf
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chunk outside reach of strf.size. Ususally a palette.
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strd_data
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a GstBuffer containing the data in the strd stream header
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chunk. Usually codec initialization data.
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codec_name
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if given, will be filled with a human-readable codec name.
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gst_riff_create_video_template_caps ()
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GstCaps *
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gst_riff_create_video_template_caps (void);
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gst_riff_init ()
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void
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gst_riff_init (void);
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Initialize riff library.
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gst_riff_parse_chunk ()
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gboolean
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gst_riff_parse_chunk (GstElement *element,
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GstBuffer *buf,
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guint *offset,
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guint32 *fourcc,
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GstBuffer **chunk_data);
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Reads a single chunk.
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Parameters
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element
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caller element (used for debugging).
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buf
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input buffer.
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offset
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offset in the buffer in the caller. Is incremented
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by the read size by this function.
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fourcc
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fourcc (returned by this function0 of the chunk.
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chunk_data
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buffer (returned by the function) containing the
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chunk data, which may be NULL if chunksize == 0
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Returns
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FALSE on error, TRUE otherwise
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gst_riff_parse_file_header ()
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gboolean
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gst_riff_parse_file_header (GstElement *element,
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GstBuffer *buf,
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guint32 *doctype);
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Reads the first few bytes from the provided buffer, checks
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if this stream is a RIFF stream, and determines document type.
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This function takes ownership of buf
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so it should not be used anymore
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after calling this function.
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Parameters
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element
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caller element (used for debugging/error).
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buf
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input buffer from which the file header will be parsed,
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should be at least 12 bytes long.
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doctype
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a fourcc (returned by this function) to indicate the
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type of document (according to the header).
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Returns
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FALSE if this is not a RIFF stream (in which case the
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caller should error out; we already throw an error), or TRUE
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if it is.
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971217 |
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Packit |
971217 |
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971217 |
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971217 |
gst_riff_parse_info ()
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Packit |
971217 |
void
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Packit |
971217 |
gst_riff_parse_info (GstElement *element,
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Packit |
971217 |
GstBuffer *buf,
|
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Packit |
971217 |
GstTagList **taglist);
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Packit |
971217 |
Parses stream metadata from input data.
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Packit |
971217 |
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Packit |
971217 |
Parameters
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Packit |
971217 |
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Packit |
971217 |
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Packit |
971217 |
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Packit |
971217 |
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Packit |
971217 |
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Packit |
971217 |
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Packit |
971217 |
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Packit |
971217 |
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Packit |
971217 |
element
|
|
Packit |
971217 |
caller element (used for debugging/error).
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Packit |
971217 |
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Packit |
971217 |
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Packit |
971217 |
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Packit |
971217 |
buf
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Packit |
971217 |
input data to be used for parsing, stripped from header.
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Packit |
971217 |
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Packit |
971217 |
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Packit |
971217 |
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Packit |
971217 |
taglist
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Packit |
971217 |
a pointer to a taglist (returned by this function)
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Packit |
971217 |
containing information about this stream. May be
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Packit |
971217 |
NULL if no supported tags were found.
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Packit |
971217 |
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Packit |
971217 |
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Packit |
971217 |
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Packit |
971217 |
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Packit |
971217 |
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Packit |
971217 |
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Packit |
971217 |
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Packit |
971217 |
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Packit |
971217 |
gst_riff_parse_strf_auds ()
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Packit |
971217 |
gboolean
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Packit |
971217 |
gst_riff_parse_strf_auds (GstElement *element,
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Packit |
971217 |
GstBuffer *buf,
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Packit |
971217 |
gst_riff_strf_auds **strf,
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Packit |
971217 |
GstBuffer **data);
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Packit |
971217 |
Parses an audio stream's strf structure plus optionally some
|
|
Packit |
971217 |
extradata from input data. This function takes ownership of buf
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Packit |
971217 |
.
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Packit |
971217 |
use.
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Packit |
971217 |
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Packit |
971217 |
Parameters
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Packit |
971217 |
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Packit |
971217 |
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Packit |
971217 |
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Packit |
971217 |
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Packit |
971217 |
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Packit |
971217 |
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Packit |
971217 |
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Packit |
971217 |
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Packit |
971217 |
element
|
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Packit |
971217 |
caller element (used for debugging/error).
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Packit |
971217 |
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Packit |
971217 |
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Packit |
971217 |
|
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Packit |
971217 |
buf
|
|
Packit |
971217 |
input data to be used for parsing, stripped from header.
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|
Packit |
971217 |
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Packit |
971217 |
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Packit |
971217 |
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Packit |
971217 |
strf
|
|
Packit |
971217 |
a pointer (returned by this function) to a filled-in
|
|
Packit |
971217 |
strf/auds structure. Caller should free it.
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|
Packit |
971217 |
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Packit |
971217 |
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Packit |
971217 |
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Packit |
971217 |
data
|
|
Packit |
971217 |
a pointer (returned by this function) to a buffer
|
|
Packit |
971217 |
containing extradata for this particular stream (e.g.
|
|
Packit |
971217 |
codec initialization data).
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|
Packit |
971217 |
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Packit |
971217 |
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Packit |
971217 |
|
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Packit |
971217 |
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Packit |
971217 |
|
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Packit |
971217 |
|
|
Packit |
971217 |
Returns
|
|
Packit |
971217 |
TRUE if parsing succeeded, otherwise FALSE. The stream
|
|
Packit |
971217 |
should be skipped on error, but it is not fatal.
|
|
Packit |
971217 |
|
|
Packit |
971217 |
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|
Packit |
971217 |
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Packit |
971217 |
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Packit |
971217 |
gst_riff_parse_strf_iavs ()
|
|
Packit |
971217 |
gboolean
|
|
Packit |
971217 |
gst_riff_parse_strf_iavs (GstElement *element,
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|
Packit |
971217 |
GstBuffer *buf,
|
|
Packit |
971217 |
gst_riff_strf_iavs **strf,
|
|
Packit |
971217 |
GstBuffer **data);
|
|
Packit |
971217 |
Parses a interleaved (also known as "complex") stream´s strf
|
|
Packit |
971217 |
structure plus optionally some extradata from input data. This
|
|
Packit |
971217 |
function takes ownership of buf
|
|
Packit |
971217 |
.
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Packit |
971217 |
|
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Packit |
971217 |
Parameters
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|
Packit |
971217 |
|
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Packit |
971217 |
|
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Packit |
971217 |
|
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Packit |
971217 |
|
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Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
element
|
|
Packit |
971217 |
caller element (used for debugging/error).
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
buf
|
|
Packit |
971217 |
input data to be used for parsing, stripped from header.
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
strf
|
|
Packit |
971217 |
a pointer (returned by this function) to a filled-in
|
|
Packit |
971217 |
strf/iavs structure. Caller should free it.
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|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
data
|
|
Packit |
971217 |
a pointer (returned by this function) to a buffer
|
|
Packit |
971217 |
containing extradata for this particular stream (e.g.
|
|
Packit |
971217 |
codec initialization data).
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
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Packit |
971217 |
|
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Packit |
971217 |
|
|
Packit |
971217 |
Returns
|
|
Packit |
971217 |
TRUE if parsing succeeded, otherwise FALSE.
|
|
Packit |
971217 |
|
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Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
gst_riff_parse_strf_vids ()
|
|
Packit |
971217 |
gboolean
|
|
Packit |
971217 |
gst_riff_parse_strf_vids (GstElement *element,
|
|
Packit |
971217 |
GstBuffer *buf,
|
|
Packit |
971217 |
gst_riff_strf_vids **strf,
|
|
Packit |
971217 |
GstBuffer **data);
|
|
Packit |
971217 |
Parses a video stream's strf structure plus optionally some
|
|
Packit |
971217 |
extradata from input data. This function takes ownership of buf
|
|
Packit |
971217 |
.
|
|
Packit |
971217 |
|
|
Packit |
971217 |
Parameters
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
element
|
|
Packit |
971217 |
caller element (used for debugging/error).
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
buf
|
|
Packit |
971217 |
input data to be used for parsing, stripped from header.
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
strf
|
|
Packit |
971217 |
a pointer (returned by this function) to a filled-in
|
|
Packit |
971217 |
strf/vids structure. Caller should free it.
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
data
|
|
Packit |
971217 |
a pointer (returned by this function) to a buffer
|
|
Packit |
971217 |
containing extradata for this particular stream (e.g.
|
|
Packit |
971217 |
palette, codec initialization data).
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
Returns
|
|
Packit |
971217 |
TRUE if parsing succeeded, otherwise FALSE. The stream
|
|
Packit |
971217 |
should be skipped on error, but it is not fatal.
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
gst_riff_parse_strh ()
|
|
Packit |
971217 |
gboolean
|
|
Packit |
971217 |
gst_riff_parse_strh (GstElement *element,
|
|
Packit |
971217 |
GstBuffer *buf,
|
|
Packit |
971217 |
gst_riff_strh **strh);
|
|
Packit |
971217 |
Parses a strh structure from input data. Takes ownership of buf
|
|
Packit |
971217 |
.
|
|
Packit |
971217 |
|
|
Packit |
971217 |
Parameters
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
element
|
|
Packit |
971217 |
caller element (used for debugging/error).
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
buf
|
|
Packit |
971217 |
input data to be used for parsing, stripped from header.
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
strh
|
|
Packit |
971217 |
a pointer (returned by this function) to a filled-in
|
|
Packit |
971217 |
strh structure. Caller should free it.
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
Returns
|
|
Packit |
971217 |
TRUE if parsing succeeded, otherwise FALSE. The stream
|
|
Packit |
971217 |
should be skipped on error, but it is not fatal.
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
gst_riff_read_chunk ()
|
|
Packit |
971217 |
GstFlowReturn
|
|
Packit |
971217 |
gst_riff_read_chunk (GstElement *element,
|
|
Packit |
971217 |
GstPad *pad,
|
|
Packit |
971217 |
guint64 *offset,
|
|
Packit |
971217 |
guint32 *tag,
|
|
Packit |
971217 |
GstBuffer **chunk_data);
|
|
Packit |
971217 |
Reads a single chunk of data. 'JUNK' chunks are skipped
|
|
Packit |
971217 |
automatically.
|
|
Packit |
971217 |
|
|
Packit |
971217 |
Parameters
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
element
|
|
Packit |
971217 |
caller element (used for debugging).
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
pad
|
|
Packit |
971217 |
pad to pull data from.
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
offset
|
|
Packit |
971217 |
offset to pull from, incremented by this function.
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
tag
|
|
Packit |
971217 |
fourcc of the chunk (returned by this function).
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
chunk_data
|
|
Packit |
971217 |
buffer (returned by this function).
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
Returns
|
|
Packit |
971217 |
flow status.
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
Types and Values
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
|
|
Packit |
971217 |
Generated by GTK-Doc V1.27
|
|
Packit |
971217 |
</body>
|
|
Packit |
971217 |
</html>
|