| GStreamer Bad Plugins 1.0 Plugins Reference Manual | ||||
|---|---|---|---|---|
| Top | Description | Implemented Interfaces | Properties | ||||
"altscan-mpeg2" gboolean : Read / Write "aspect" GstMpeg2encAspect : Read / Write "b-per-refframe" gint : Read / Write "bitrate" gint : Read / Write "bufsize" gint : Read / Write "closed-gop" gboolean : Read / Write "constraints" gboolean : Read / Write "correct-svcd-hds" gboolean : Read / Write "dualprime" gboolean : Read / Write "dummy-svcd-sof" gboolean : Read / Write "force-b-b-p" gboolean : Read / Write "format" GstMpeg2encFormat : Read / Write "framerate" GstMpeg2encFramerate : Read / Write "interlace-mode" GstMpeg2encInterlaceMode : Read / Write "intra-dc-prec" gint : Read / Write "keep-hf" gboolean : Read / Write "max-gop-size" gint : Read / Write "min-gop-size" gint : Read / Write "motion-search-radius" gint : Read / Write "non-video-bitrate" gint : Read / Write "norm" GstMpeg2encVideoNorm : Read / Write "playback-field-order" GstMpeg2encPlaybackFieldOrders : Read / Write "pulldown-3-2" gboolean : Read / Write "quant-matrix" GstMpeg2encQuantisationMatrix : Read / Write "quant-reduction-max-var" gfloat : Read / Write "quantisation" gint : Read / Write "quantisation-reduction" gfloat : Read / Write "reduce-hf" gfloat : Read / Write "reduction-2x2" gint : Read / Write "reduction-4x4" gint : Read / Write "sequence-header-every-gop" gboolean : Read / Write "sequence-length" gint : Read / Write "unit-coeff-elim" gint : Read / Write "vcd-still-size" gint : Read / Write
plugin |
mpeg2enc |
author |
Andrew Stevens <andrew.stevens@nexgo.de> Ronald Bultje <rbultje@ronald.bitfreak.net> |
class |
Codec/Encoder/Video |
name |
sink |
direction |
sink |
presence |
always |
details |
video/x-raw, format=(string){ I420 }, width=(int)[ 16, 4096 ], height=(int)[ 16, 4096 ], framerate=(fraction){ 24000/1001, 24/1, 25/1, 30000/1001, 30/1, 50/1, 60000/1001 } |
name |
src |
direction |
source |
presence |
always |
details |
video/mpeg, systemstream=(boolean)false, mpegversion=(int){ 1, 2 }, width=(int)[ 16, 4096 ], height=(int)[ 16, 4096 ], framerate=(fraction){ 24000/1001, 24/1, 25/1, 30000/1001, 30/1, 50/1, 60000/1001 } |
typedef struct {
GstElement parent;
/* pads */
GstPad *sinkpad, *srcpad;
/* video info for in caps */
GstVideoInfo vinfo;
/* options wrapper */
GstMpeg2EncOptions *options;
/* general encoding object (contains rest) */
GstMpeg2Encoder *encoder;
/* lock for syncing with encoding task */
GMutex tlock;
/* with TLOCK */
/* signals counterpart thread that something changed;
* buffer ready for task or buffer has been processed */
GCond cond;
/* seen eos */
gboolean eos;
/* flowreturn obtained by encoding task */
GstFlowReturn srcresult;
/* buffer for encoding task */
GstBuffer *buffer;
/* timestamps for output */
GQueue *time;
} GstMpeg2enc;
"altscan-mpeg2" property"altscan-mpeg2" gboolean : Read / Write
Alternate MPEG-2 block scanning. Disabling this might make buggy players play SVCD streams.
Default value: TRUE
"aspect" property "aspect" GstMpeg2encAspect : Read / Write
Display aspect ratio.
Default value: Deduce from input
"b-per-refframe" property"b-per-refframe" gint : Read / Write
Number of B frames between each I/P frame.
Allowed values: [0,2]
Default value: 0
"bitrate" property"bitrate" gint : Read / Write
Compressed video bitrate (kbps).
Allowed values: [0,10000]
Default value: 1125
"bufsize" property"bufsize" gint : Read / Write
Target decoders video buffer size (kB) (default depends on format).
Allowed values: [20,4000]
Default value: 46
"closed-gop" property"closed-gop" gboolean : Read / Write
All Group-of-Pictures are closed (for multi-angle DVDs).
Default value: FALSE
"constraints" property"constraints" gboolean : Read / Write
Use strict video resolution and bitrate checks.
Default value: TRUE
"correct-svcd-hds" property"correct-svcd-hds" gboolean : Read / Write
Force SVCD width to 480 instead of 540/720.
Default value: FALSE
"dualprime" property"dualprime" gboolean : Read / Write
Dual Prime Motion Estimation Mode for MPEG-2 I/P-frame only streams. Quite some players do not support this.
Default value: FALSE
"dummy-svcd-sof" property"dummy-svcd-sof" gboolean : Read / Write
Generate dummy SVCD scan-data (for vcdimager).
Default value: TRUE
"force-b-b-p" property"force-b-b-p" gboolean : Read / Write
Force two B frames between I/P frames when closing GOP boundaries.
Default value: FALSE
"format" property "format" GstMpeg2encFormat : Read / Write
Encoding profile format.
Default value: Generic MPEG-1
"framerate" property "framerate" GstMpeg2encFramerate : Read / Write
Output framerate.
Default value: Same as input
"interlace-mode" property "interlace-mode" GstMpeg2encInterlaceMode : Read / Write
MPEG-2 motion estimation and encoding modes.
Default value: Progressive
"intra-dc-prec" property"intra-dc-prec" gint : Read / Write
Number of bits precision for DC (base colour) in MPEG-2 blocks.
Allowed values: [8,11]
Default value: 9
"keep-hf" property"keep-hf" gboolean : Read / Write
Maximize high-frequency resolution (for high-quality sources).
Default value: FALSE
"max-gop-size" property"max-gop-size" gint : Read / Write
Maximal size per Group-of-Pictures (-1=default).
Allowed values: [G_MAXULONG,250]
Default value: -1
"min-gop-size" property"min-gop-size" gint : Read / Write
Minimal size per Group-of-Pictures (-1=default).
Allowed values: [G_MAXULONG,250]
Default value: -1
"motion-search-radius" property"motion-search-radius" gint : Read / Write
Motion compensation search radius.
Allowed values: [0,32]
Default value: 16
"non-video-bitrate" property"non-video-bitrate" gint : Read / Write
Assumed bitrate of non-video for sequence splitting (kbps).
Allowed values: [0,10000]
Default value: 0
"norm" property "norm" GstMpeg2encVideoNorm : Read / Write
Tag output for specific video norm.
Default value: Unspecified
"playback-field-order" property "playback-field-order" GstMpeg2encPlaybackFieldOrders : Read / Write
Force specific playback field order.
Default value: Unspecified
"pulldown-3-2" property"pulldown-3-2" gboolean : Read / Write
Generate header flags for 3-2 pull down 24fps movies.
Default value: FALSE
"quant-matrix" property "quant-matrix" GstMpeg2encQuantisationMatrix : Read / Write
Quantisation matrix to use for encoding.
Default value: Default
"quant-reduction-max-var" property"quant-reduction-max-var" gfloat : Read / Write
Maximal luma variance below which quantisation boost is used.
Allowed values: [0,2500]
Default value: 100
"quantisation" property"quantisation" gint : Read / Write
Quantisation factor (-1=cbr, 0=default, 1=best, 31=worst).
Allowed values: [G_MAXULONG,31]
Default value: 0
"quantisation-reduction" property"quantisation-reduction" gfloat : Read / Write
Max. quantisation reduction for highly active blocks.
Allowed values: [-4,10]
Default value: 0
"reduce-hf" property"reduce-hf" gfloat : Read / Write
How much to reduce high-frequency resolution (by increasing quantisation).
Allowed values: [0,2]
Default value: 0
"reduction-2x2" property"reduction-2x2" gint : Read / Write
Reduction factor for 2x2 subsampled candidate motion estimates (1=max. quality, 4=max. speed).
Allowed values: [1,4]
Default value: 3
"reduction-4x4" property"reduction-4x4" gint : Read / Write
Reduction factor for 4x4 subsampled candidate motion estimates (1=max. quality, 4=max. speed).
Allowed values: [1,4]
Default value: 2
"sequence-header-every-gop" property"sequence-header-every-gop" gboolean : Read / Write
Include a sequence header in every GOP.
Default value: FALSE
"sequence-length" property"sequence-length" gint : Read / Write
Place a sequence boundary after each <num> MB (0=disable).
Allowed values: [0,10240]
Default value: 0
"unit-coeff-elim" property"unit-coeff-elim" gint : Read / Write
How agressively small-unit picture blocks should be skipped.
Allowed values: [-40,40]
Default value: 0
"vcd-still-size" property"vcd-still-size" gint : Read / Write
Size of VCD stills (in KB).
Allowed values: [0,512]
Default value: 0