WebM Codec SDK

Sample Code

This SDK includes a number of sample applications. Each sample documents a feature of the SDK in both prose and the associated C code. The following samples are included:

- decode_to_md5 Frame by frame MD5 checksum
- decode_with_drops Drops frames while decoding
- postproc Decoder postprocessor control
- set_maps Set active and ROI maps
- simple_decoder Simplified decoder loop
- simple_encoder Simplified encoder loop
- twopass_encoder Two-pass encoder loop
- vp8cx_set_ref VP8 set encoder reference frame
- vp9_lossless_encoder Simplified lossless VP9 encoder
- vp9_spatial_svc_encoder VP9 Spatial SVC Encoder
- vp9cx_set_ref VP9 set encoder reference frame
- vpx_temporal_svc_encoder Temporal SVC Encoder

In addition, the SDK contains a number of utilities. Since these utilities are built upon the concepts described in the sample code listed above, they are not documented in pieces like the samples are. Their source is included here for reference. The following utilities are included:

- vpxdec Full featured decoder
- vpxenc Full featured encoder

vpx_codec_enc_cfg::rc_2pass_vbr_minsection_pct
unsigned int rc_2pass_vbr_minsection_pct
Two-pass mode per-GOP minimum bitrate.
Definition: vpx_encoder.h:570
VP8D_GET_FRAME_CORRUPTED
Definition: vp8dx.h:63
vpx_svc_ref_frame_config::alt_fb_idx
int alt_fb_idx[5]
Definition: vp8cx.h:820
VPX_CS_RESERVED
Definition: vpx_image.h:60
VPX_CS_BT_709
Definition: vpx_image.h:56
VPX_IMG_FMT_YV12
Definition: vpx_image.h:40
vpx_svc_ref_frame_config::gld_fb_idx
int gld_fb_idx[5]
Definition: vp8cx.h:819
vpx_svc_ref_frame_config::lst_fb_idx
int lst_fb_idx[5]
Definition: vp8cx.h:818
vpx_roi_map
vpx region of interest map
Definition: vp8cx.h:725
vpx_codec_enc_cfg::ts_rate_decimator
unsigned int ts_rate_decimator[5]
Frame rate decimation factor for each temporal layer.
Definition: vpx_encoder.h:658
VP9_DECODE_SVC_SPATIAL_LAYER
Definition: vp8dx.h:117
VP8E_SET_ARNR_STRENGTH
Codec control function to set the filter strength for the arf.
Definition: vp8cx.h:223
vpx_image::d_h
unsigned int d_h
Definition: vpx_image.h:83
vpx_codec_dec_cfg::threads
unsigned int threads
Definition: vpx_decoder.h:108
vpx_roi_map::ref_frame
int ref_frame[8]
Definition: vp8cx.h:738
VPX_CS_SRGB
Definition: vpx_image.h:61
vpx_svc_parameters
vp9 svc extra configure parameters
Definition: vpx_encoder.h:701
vpx_svc_parameters::max_quantizers
int max_quantizers[12]
Definition: vpx_encoder.h:702
VPX_IMG_FMT_HIGHBITDEPTH
#define VPX_IMG_FMT_HIGHBITDEPTH
Definition: vpx_image.h:35
vpx_codec_ctx
Codec context structure.
Definition: vpx_codec.h:197
VP9E_SET_TARGET_LEVEL
Codec control function to set target level.
Definition: vp8cx.h:562
VPX_CS_SMPTE_240
Definition: vpx_image.h:58
vpx_codec_stream_info::sz
unsigned int sz
Definition: vpx_decoder.h:90
VPX_BITS_8
Definition: vpx_codec.h:218
vpx_codec_err_to_string
const char * vpx_codec_err_to_string(vpx_codec_err_t err)
Convert error number to printable string.
VPX_SS_MAX_LAYERS
#define VPX_SS_MAX_LAYERS
Definition: vpx_encoder.h:46
vpx_codec_stream_info::h
unsigned int h
Definition: vpx_decoder.h:92
vpx_active_map::cols
unsigned int cols
Definition: vp8cx.h:753
vpx_fixed_buf
Generic fixed size buffer structure.
Definition: vpx_encoder.h:96
VP8E_SET_ENABLEAUTOALTREF
Codec control function to enable automatic use of arf frames.
Definition: vp8cx.h:164
VP9E_SET_AQ_MODE
Codec control function to set adaptive quantization mode.
Definition: vp8cx.h:398
vpx_codec_cx_pkt::kind
enum vpx_codec_cx_pkt_kind kind
Definition: vpx_encoder.h:160
VP9E_GET_SVC_LAYER_ID
Codec control function to get svc layer ID.
Definition: vp8cx.h:471
VP9E_SET_ROI_MAP
Codec control function to pass an ROI map to encoder.
Definition: vp8cx.h:436
vpx_img_free
void vpx_img_free(vpx_image_t *img)
Close an image descriptor.
VP9E_SET_LOSSLESS
Codec control function to set lossless encoding mode.
Definition: vp8cx.h:327
VP8_SET_POSTPROC
Definition: vp8.h:49
VP8E_SET_SCREEN_CONTENT_MODE
Codec control function to set encoder screen content mode.
Definition: vp8cx.h:312
VP9E_TEMPORAL_LAYERING_MODE_BYPASS
Bypass mode. Used when application needs to control temporal layering. This will only work when the n...
Definition: vp8cx.h:708
vpx_codec_enc_cfg::ss_number_layers
unsigned int ss_number_layers
Number of spatial coding layers.
Definition: vpx_encoder.h:624
VP8E_GET_LAST_QUANTIZER_64
Codec control function to get last quantizer chosen by the encoder.
Definition: vp8cx.h:211
VP8_EFLAG_NO_REF_LAST
#define VP8_EFLAG_NO_REF_LAST
Don't reference the last frame.
Definition: vp8cx.h:58
vpx_codec_enc_cfg::rc_twopass_stats_in
vpx_fixed_buf_t rc_twopass_stats_in
Two-pass stats buffer.
Definition: vpx_encoder.h:447
vpx_codec_enc_cfg
Encoder configuration structure.
Definition: vpx_encoder.h:268
vpx_svc_ref_frame_config::reference_golden
int reference_golden[5]
Definition: vp8cx.h:827
vpx_codec_decode
vpx_codec_err_t vpx_codec_decode(vpx_codec_ctx_t *ctx, const uint8_t *data, unsigned int data_sz, void *user_priv, long deadline)
Decode data.
vpx_codec_enc_cfg::kf_max_dist
unsigned int kf_max_dist
Keyframe maximum interval.
Definition: vpx_encoder.h:614
VPX_PLANE_U
#define VPX_PLANE_U
Definition: vpx_image.h:96
vpx_codec_iface_name
const char * vpx_codec_iface_name(vpx_codec_iface_t *iface)
Return the name for a given interface.
VPX_CODEC_PSNR_PKT
Definition: vpx_encoder.h:150
vpx_svc_parameters::min_quantizers
int min_quantizers[12]
Definition: vpx_encoder.h:703
VPX_DL_BEST_QUALITY
#define VPX_DL_BEST_QUALITY
deadline parameter analogous to VPx BEST QUALITY mode.
Definition: vpx_encoder.h:834
VPX_VBR
Definition: vpx_encoder.h:232
VP9D_SET_ROW_MT
Codec control function to set row level multi-threading.
Definition: vp8dx.h:133
VP8E_SET_NOISE_SENSITIVITY
control function to set noise sensitivity
Definition: vp8cx.h:173
VP9E_SET_FRAME_PERIODIC_BOOST
Codec control function to enable/disable periodic Q boost.
Definition: vp8cx.h:413
vpx_enc_frame_flags_t
long vpx_enc_frame_flags_t
Encoded Frame Flags.
Definition: vpx_encoder.h:259
vpx_codec_enc_cfg::rc_buf_sz
unsigned int rc_buf_sz
Decoder Buffer Size.
Definition: vpx_encoder.h:531
VP9E_SET_GF_CBR_BOOST_PCT
Boost percentage for Golden Frame in CBR mode.
Definition: vp8cx.h:293
VPX_IMG_FMT_I42216
Definition: vpx_image.h:47
vpx_codec_get_frame
vpx_image_t * vpx_codec_get_frame(vpx_codec_ctx_t *ctx, vpx_codec_iter_t *iter)
Decoded frames iterator.
VPX_FRAME_IS_FRAGMENT
#define VPX_FRAME_IS_FRAGMENT
this is a fragment of the encoded frame
Definition: vpx_encoder.h:123
vpx_img_alloc
vpx_image_t * vpx_img_alloc(vpx_image_t *img, vpx_img_fmt_t fmt, unsigned int d_w, unsigned int d_h, unsigned int align)
Open a descriptor, allocating storage for the underlying image.
vpx_rational::num
int num
Definition: vpx_encoder.h:219
VPX_CODEC_USE_POSTPROC
#define VPX_CODEC_USE_POSTPROC
Definition: vpx_decoder.h:74
vpx_svc_frame_drop::max_consec_drop
int max_consec_drop
Definition: vp8cx.h:857
VPX_DL_REALTIME
#define VPX_DL_REALTIME
deadline parameter analogous to VPx REALTIME mode.
Definition: vpx_encoder.h:830
vpx_svc_layer_id::temporal_layer_id_per_spatial
int temporal_layer_id_per_spatial[5]
Definition: vp8cx.h:806
vpx_ref_frame::img
vpx_image_t img
Definition: vp8.h:103
vpx_codec_ctx::name
const char * name
Definition: vpx_codec.h:198
VPX_CODEC_OK
Operation completed without error.
Definition: vpx_codec.h:92
vpx_codec_cx_pkt::firstpass_mb_stats
vpx_fixed_buf_t firstpass_mb_stats
Definition: vpx_encoder.h:183
vp8dx.h
Provides definitions for using VP8 or VP9 within the vpx Decoder interface.
vpx_codec_frame_buffer::data
uint8_t * data
Definition: vpx_frame_buffer.h:40
VP8_EFLAG_NO_UPD_ENTROPY
#define VP8_EFLAG_NO_UPD_ENTROPY
Disable entropy update.
Definition: vp8cx.h:116
vpx_codec_get_cx_data
const vpx_codec_cx_pkt_t * vpx_codec_get_cx_data(vpx_codec_ctx_t *ctx, vpx_codec_iter_t *iter)
Encoded data iterator.
vpx_codec_cx_pkt
Encoder output packet.
Definition: vpx_encoder.h:159
vpx_codec_iter_t
const typedef void * vpx_codec_iter_t
Iterator.
Definition: vpx_codec.h:187
vpx_codec_enc_cfg::g_w
unsigned int g_w
Width of the frame.
Definition: vpx_encoder.h:304
VPX_CODEC_CX_FRAME_PKT
Definition: vpx_encoder.h:147
VP9E_SET_MIN_GF_INTERVAL
Codec control function to set minimum interval between GF/ARF frames.
Definition: vp8cx.h:514
vp9_ref_frame::idx
int idx
Definition: vp8.h:111
vp9_ref_frame
VP9 specific reference frame data struct.
Definition: vp8.h:110
VPX_IMG_FMT_I44416
Definition: vpx_image.h:48
VPX_IMG_FMT_I422
Definition: vpx_image.h:43
vpx_image::d_w
unsigned int d_w
Definition: vpx_image.h:82
vpx_svc_ref_frame_config
vp9 svc frame flag parameters.
Definition: vp8cx.h:817
vpx_image::planes
unsigned char * planes[4]
Definition: vpx_image.h:99
VP9E_SET_MAX_GF_INTERVAL
Codec control function to set minimum interval between GF/ARF frames.
Definition: vp8cx.h:522
vpx_roi_map::rows
unsigned int rows
Definition: vp8cx.h:731
vpx_image::bit_depth
unsigned int bit_depth
Definition: vpx_image.h:79
VPX_TS_MAX_LAYERS
#define VPX_TS_MAX_LAYERS
Definition: vpx_encoder.h:40
vpx_image::fmt
vpx_img_fmt_t fmt
Definition: vpx_image.h:72
VP9E_SET_SVC
Codec control function to turn on/off SVC in encoder.
Definition: vp8cx.h:430
vp8_postproc_cfg::post_proc_flag
int post_proc_flag
the types of post processing to be done, should be combination of "vp8_postproc_level"
Definition: vp8.h:82
vpx_codec_enc_cfg::g_profile
unsigned int g_profile
Bitstream profile to use.
Definition: vpx_encoder.h:295
VPX_BITS_12
Definition: vpx_codec.h:220
VP8_EFLAG_NO_UPD_LAST
#define VP8_EFLAG_NO_UPD_LAST
Don't update the last frame.
Definition: vp8cx.h:81
vpx_codec_enc_cfg::rc_overshoot_pct
unsigned int rc_overshoot_pct
Rate control adaptation overshoot control.
Definition: vpx_encoder.h:516
VP9E_SET_SVC_INTER_LAYER_PRED
Codec control function to constrain the inter-layer prediction (prediction of lower spatial resolutio...
Definition: vp8cx.h:619
VPX_MAX_LAYERS
#define VPX_MAX_LAYERS
Definition: vpx_encoder.h:43
vpx_codec_enc_init
#define vpx_codec_enc_init(ctx, iface, cfg, flags)
Convenience macro for vpx_codec_enc_init_ver()
Definition: vpx_encoder.h:741
VPX_CODEC_STATS_PKT
Definition: vpx_encoder.h:148
vpx_codec_pts_t
int64_t vpx_codec_pts_t
Time Stamp Type.
Definition: vpx_encoder.h:106
VPX_RC_LAST_PASS
Definition: vpx_encoder.h:227
VP9E_SET_FRAME_PARALLEL_DECODING
Codec control function to enable frame parallel decoding feature.
Definition: vp8cx.h:385
vpx_svc_parameters::scaling_factor_den
int scaling_factor_den[12]
Definition: vpx_encoder.h:705
VP9E_SET_MAX_INTER_BITRATE_PCT
Codec control function to set max data rate for Inter frames.
Definition: vp8cx.h:278
vpx_codec_frame_buffer
External frame buffer.
Definition: vpx_frame_buffer.h:39
vpx_ref_frame::frame_type
vpx_ref_frame_type_t frame_type
Definition: vp8.h:102
VP8E_SET_STATIC_THRESHOLD
Codec control function to set the threshold for MBs treated static.
Definition: vp8cx.h:188
vpx_codec_enc_cfg::g_bit_depth
vpx_bit_depth_t g_bit_depth
Bit-depth of the codec.
Definition: vpx_encoder.h:321
vpx_ref_frame
reference frame data struct
Definition: vp8.h:101
vpx_codec_enc_cfg::g_timebase
struct vpx_rational g_timebase
Stream timebase units.
Definition: vpx_encoder.h:343
VPX_IMG_FMT_I420
Definition: vpx_image.h:42
vpx_svc_ref_frame_config::reference_last
int reference_last[5]
Definition: vp8cx.h:826
VPX_CS_BT_601
Definition: vpx_image.h:55
vpx_codec_cx_pkt::psnr
double psnr[4]
Definition: vpx_encoder.h:187
VPX_TS_MAX_PERIODICITY
#define VPX_TS_MAX_PERIODICITY
Definition: vpx_encoder.h:37
vpx_codec_enc_cfg::rc_dropframe_thresh
unsigned int rc_dropframe_thresh
Temporal resampling configuration, if supported by the codec.
Definition: vpx_encoder.h:391
VP9E_SET_TILE_ROWS
Codec control function to set number of tile rows.
Definition: vp8cx.h:371
vpx_svc_parameters::scaling_factor_num
int scaling_factor_num[12]
Definition: vpx_encoder.h:704
VP8E_SET_SHARPNESS
Codec control function to set higher sharpness at the expense of a lower PSNR.
Definition: vp8cx.h:182
VPX_CODEC_CORRUPT_FRAME
The coded data for this stream is corrupt or incomplete.
Definition: vpx_codec.h:130
vpx_codec_enc_cfg::g_error_resilient
vpx_codec_er_flags_t g_error_resilient
Enable error resilient modes.
Definition: vpx_encoder.h:351
vpx_roi_map::cols
unsigned int cols
Definition: vp8cx.h:732
vpx_image
Image Descriptor.
Definition: vpx_image.h:71
vpx_codec_frame_buffer::size
size_t size
Definition: vpx_frame_buffer.h:41
vpx_codec_enc_cfg::g_pass
enum vpx_enc_pass g_pass
Multi-pass Encoding Mode.
Definition: vpx_encoder.h:358
vpx_codec_enc_cfg::g_h
unsigned int g_h
Height of the frame.
Definition: vpx_encoder.h:313
VP9E_SET_ALT_REF_AQ
Codec control function to enable/disable special mode for altref adaptive quantization....
Definition: vp8cx.h:586
vpx_svc_ref_frame_config::update_buffer_slot
int update_buffer_slot[5]
Definition: vp8cx.h:821
vpx_roi_map::delta_q
int delta_q[8]
Definition: vp8cx.h:734
vpx_image::stride
int stride[4]
Definition: vpx_image.h:100
vpx_roi_map::delta_lf
int delta_lf[8]
Definition: vp8cx.h:735
VP9E_SET_SVC_LAYER_ID
Codec control function to set svc layer for spatial and temporal.
Definition: vp8cx.h:453
vpx_codec_enc_cfg::rc_max_quantizer
unsigned int rc_max_quantizer
Maximum (Worst Quality) Quantizer.
Definition: vpx_encoder.h:482
vpx_codec_enc_cfg::rc_end_usage
enum vpx_rc_mode rc_end_usage
Rate control algorithm to use.
Definition: vpx_encoder.h:440
VPX_CS_SMPTE_170
Definition: vpx_image.h:57
vpx_codec_enc_cfg::g_lag_in_frames
unsigned int g_lag_in_frames
Allow lagged encoding.
Definition: vpx_encoder.h:372
VP9D_SET_LOOP_FILTER_OPT
Codec control function to set loopfilter optimization.
Definition: vp8dx.h:143
vpx_roi_map::roi_map
unsigned char * roi_map
Definition: vp8cx.h:730
vpx_bit_depth_t
enum vpx_bit_depth vpx_bit_depth_t
Bit depth for codecThis enumeration determines the bit depth of the codec.
VP8E_SET_CPUUSED
Codec control function to set encoder internal speed settings.
Definition: vp8cx.h:155
VPX_CODEC_USE_HIGHBITDEPTH
#define VPX_CODEC_USE_HIGHBITDEPTH
Definition: vpx_encoder.h:90
vpx_codec_err_t
vpx_codec_err_t
Algorithm return codes.
Definition: vpx_codec.h:90
VP8E_SET_CQ_LEVEL
Codec control function to set constrained / constant quality level.
Definition: vp8cx.h:242
vpx_codec_enc_cfg::rc_resize_allowed
unsigned int rc_resize_allowed
Enable/disable spatial resampling, if supported by the codec.
Definition: vpx_encoder.h:400
VP9_GET_REFERENCE
Definition: vp8.h:55
VP8_EFLAG_NO_REF_ARF
#define VP8_EFLAG_NO_REF_ARF
Don't reference the alternate reference frame.
Definition: vp8cx.h:74
vpx_codec_error_detail
const char * vpx_codec_error_detail(vpx_codec_ctx_t *ctx)
Retrieve detailed error information for codec context.
VP9E_SET_TPL
Codec control function to enable temporal dependency model.
Definition: vp8cx.h:668
VPX_IMG_FMT_I444
Definition: vpx_image.h:44
vpx_codec_stream_info::w
unsigned int w
Definition: vpx_decoder.h:91
VPX_EFLAG_FORCE_KF
#define VPX_EFLAG_FORCE_KF
Definition: vpx_encoder.h:260
vpx_svc_frame_drop::framedrop_mode
SVC_LAYER_DROP_MODE framedrop_mode
Definition: vp8cx.h:856
vp8_postproc_cfg
post process flags
Definition: vp8.h:79
vpx_svc_layer_id
vp9 svc layer parameters
Definition: vp8cx.h:802
VP9E_SET_TUNE_CONTENT
Codec control function to set content type.
Definition: vp8cx.h:463
VPXD_GET_LAST_QUANTIZER
Codec control function to get last decoded frame quantizer.
Definition: vp8dx.h:125
VP9E_SET_NOISE_SENSITIVITY
Codec control function to set noise sensitivity.
Definition: vp8cx.h:421
VPX_PLANE_V
#define VPX_PLANE_V
Definition: vpx_image.h:97
vpx_codec_frame_buffer::priv
void * priv
Definition: vpx_frame_buffer.h:42
vpx_codec_stream_info
Stream properties.
Definition: vpx_decoder.h:89
VP8_SET_REFERENCE
pass in an external frame into decoder to be used as reference frame
Definition: vp8.h:47
vpx_img_fmt_t
enum vpx_img_fmt vpx_img_fmt_t
List of supported image formats.
vpx_codec_cx_pkt::raw
vpx_fixed_buf_t raw
Definition: vpx_encoder.h:189
vpx_codec_enc_cfg::layer_target_bitrate
unsigned int layer_target_bitrate[12]
Target bitrate for each spatial/temporal layer.
Definition: vpx_encoder.h:684
vpx_svc_layer_id::temporal_layer_id
int temporal_layer_id
Definition: vp8cx.h:805
vpx_codec_enc_cfg::g_input_bit_depth
unsigned int g_input_bit_depth
Bit-depth of the input frames.
Definition: vpx_encoder.h:329
VP9D_GET_DISPLAY_SIZE
Definition: vp8dx.h:85
VPX_CQ
Definition: vpx_encoder.h:234
vpx_codec_cx_pkt::data
union vpx_codec_cx_pkt::@1 data
VPX_RC_FIRST_PASS
Definition: vpx_encoder.h:226
vpx_active_map::active_map
unsigned char * active_map
specify an on (1) or off (0) each 16x16 region within a frame
Definition: vp8cx.h:751
vpx_codec_enc_cfg::ts_target_bitrate
unsigned int ts_target_bitrate[5]
Target bitrate for each temporal layer.
Definition: vpx_encoder.h:651
vpx_svc_frame_drop::framedrop_thresh
int framedrop_thresh[5]
Definition: vp8cx.h:854
VPX_IMG_FMT_I42016
Definition: vpx_image.h:46
VP8E_SET_ACTIVEMAP
Codec control function to pass an Active map to encoder.
Definition: vp8cx.h:136
VPX_FRAME_IS_KEY
#define VPX_FRAME_IS_KEY
Definition: vpx_encoder.h:116
vp8cx.h
Provides definitions for using VP8 or VP9 encoder algorithm within the vpx Codec Interface.
vpx_codec_enc_cfg::kf_min_dist
unsigned int kf_min_dist
Keyframe minimum interval.
Definition: vpx_encoder.h:605
vpx_codec_enc_cfg::rc_min_quantizer
unsigned int rc_min_quantizer
Minimum (Best Quality) Quantizer.
Definition: vpx_encoder.h:473
VPX_CODEC_USE_ERROR_CONCEALMENT
#define VPX_CODEC_USE_ERROR_CONCEALMENT
Conceal errors in decoded frames.
Definition: vpx_decoder.h:76
VPX_PLANE_Y
#define VPX_PLANE_Y
Definition: vpx_image.h:95
vpx_codec_dec_init
#define vpx_codec_dec_init(ctx, iface, cfg, flags)
Convenience macro for vpx_codec_dec_init_ver()
Definition: vpx_decoder.h:144
VPX_CODEC_INCAPABLE
Algorithm does not have required capability.
Definition: vpx_codec.h:104
vpx_codec_enc_cfg::rc_buf_initial_sz
unsigned int rc_buf_initial_sz
Decoder Buffer Initial Size.
Definition: vpx_encoder.h:540
vpx_fixed_buf::sz
size_t sz
Definition: vpx_encoder.h:98
VP8E_SET_TUNING
Codec control function to set visual tuning.
Definition: vp8cx.h:232
VPX_BITS_10
Definition: vpx_codec.h:219
vpx_active_map::rows
unsigned int rows
Definition: vp8cx.h:752
VP9E_SET_ROW_MT
Codec control function to set row level multi-threading.
Definition: vp8cx.h:570
vpx_svc_frame_drop
vp9 svc frame dropping parameters.
Definition: vp8cx.h:853
VPX_CODEC_USE_OUTPUT_PARTITION
#define VPX_CODEC_USE_OUTPUT_PARTITION
Make the encoder output one partition at a time.
Definition: vpx_encoder.h:89
VP8E_SET_ARNR_TYPE
Definition: vp8cx.h:226
vpx_codec_ctx::err
vpx_codec_err_t err
Definition: vpx_codec.h:200
vpx_codec_enc_cfg::rc_buf_optimal_sz
unsigned int rc_buf_optimal_sz
Decoder Buffer Optimal Size.
Definition: vpx_encoder.h:549
VP8E_SET_MAX_INTRA_BITRATE_PCT
Codec control function to set Max data rate for Intra frames.
Definition: vp8cx.h:257
vpx_svc_layer_id::spatial_layer_id
int spatial_layer_id
Definition: vp8cx.h:803
vpx_codec_set_frame_buffer_functions
vpx_codec_err_t vpx_codec_set_frame_buffer_functions(vpx_codec_ctx_t *ctx, vpx_get_frame_buffer_cb_fn_t cb_get, vpx_release_frame_buffer_cb_fn_t cb_release, void *cb_priv)
Pass in external frame buffers for the decoder to use.
vp8_postproc_cfg::deblocking_level
int deblocking_level
Definition: vp8.h:83
VPX_KF_AUTO
Definition: vpx_encoder.h:248
VPX_IMG_FMT_I440
Definition: vpx_image.h:45
vpx_codec_enc_cfg::ts_layer_id
unsigned int ts_layer_id[16]
Template defining the membership of frames to temporal layers.
Definition: vpx_encoder.h:676
VP8_COPY_REFERENCE
Definition: vp8.h:48
vp9_ref_frame::img
vpx_image_t img
Definition: vp8.h:112
VP8E_SET_TOKEN_PARTITIONS
Codec control function to set the number of token partitions.
Definition: vp8cx.h:194
vpx_codec_enc_cfg::rc_target_bitrate
unsigned int rc_target_bitrate
Target data rate.
Definition: vpx_encoder.h:460
vpx_codec_enc_cfg::rc_2pass_vbr_maxsection_pct
unsigned int rc_2pass_vbr_maxsection_pct
Two-pass mode per-GOP maximum bitrate.
Definition: vpx_encoder.h:577
VP9E_SET_TILE_COLUMNS
Codec control function to set number of tile columns.
Definition: vp8cx.h:351
vpx_fixed_buf::buf
void * buf
Definition: vpx_encoder.h:97
vp8_postproc_cfg::noise_level
int noise_level
Definition: vp8.h:84
vpx_codec_cx_pkt::twopass_stats
vpx_fixed_buf_t twopass_stats
Definition: vpx_encoder.h:182
vpx_codec_enc_cfg::g_threads
unsigned int g_threads
Maximum number of threads to use.
Definition: vpx_encoder.h:285
VP8_EFLAG_NO_REF_GF
#define VP8_EFLAG_NO_REF_GF
Don't reference the golden frame.
Definition: vp8cx.h:66
vpx_codec_control
#define vpx_codec_control(ctx, id, data)
vpx_codec_control wrapper macro
Definition: vpx_codec.h:404
VP8_EFLAG_NO_UPD_ARF
#define VP8_EFLAG_NO_UPD_ARF
Don't update the alternate reference frame.
Definition: vp8cx.h:95
VPX_IMG_FMT_I44016
Definition: vpx_image.h:49
vpx_codec_encode
vpx_codec_err_t vpx_codec_encode(vpx_codec_ctx_t *ctx, const vpx_image_t *img, vpx_codec_pts_t pts, unsigned long duration, vpx_enc_frame_flags_t flags, unsigned long deadline)
Encode a frame.
VP9E_SET_SVC_REF_FRAME_CONFIG
Codec control function to set the frame flags and buffer indices for spatial layers....
Definition: vp8cx.h:545
vpx_roi_map::static_threshold
unsigned int static_threshold[4]
Definition: vp8cx.h:740
vpx_decoder.h
Describes the decoder algorithm interface to applications.
vpx_codec_dec_cfg
Initialization Configurations.
Definition: vpx_decoder.h:107
VP9E_SET_SVC_FRAME_DROP_LAYER
Codec control function to set mode and thresholds for frame dropping in SVC. Drop frame thresholds ar...
Definition: vp8cx.h:628
vpx_rational::den
int den
Definition: vpx_encoder.h:220
vpx_svc_ref_frame_config::duration
int64_t duration[5]
Definition: vp8cx.h:829
vpx_roi_map::skip
int skip[8]
Definition: vp8cx.h:737
VP8E_SET_ROI_MAP
Codec control function to pass an ROI map to encoder.
Definition: vp8cx.h:130
vpx_codec_enc_config_default
vpx_codec_err_t vpx_codec_enc_config_default(vpx_codec_iface_t *iface, vpx_codec_enc_cfg_t *cfg, unsigned int usage)
Get a default configuration.
vpx_codec_er_flags_t
uint32_t vpx_codec_er_flags_t
Error Resilient flags.
Definition: vpx_encoder.h:131
vpx_codec_destroy
vpx_codec_err_t vpx_codec_destroy(vpx_codec_ctx_t *ctx)
Destroy a codec instance.
vpx_active_map
vpx active region map
Definition: vp8cx.h:749
vpx_codec_control_
vpx_codec_err_t vpx_codec_control_(vpx_codec_ctx_t *ctx, int ctrl_id,...)
Control algorithm.
vpx_codec_enc_cfg::temporal_layering_mode
int temporal_layering_mode
Temporal layering mode indicating which temporal layering scheme to use.
Definition: vpx_encoder.h:693
VP9E_SET_COLOR_SPACE
Codec control function to set color space info.
Definition: vp8cx.h:494
VP8_EFLAG_NO_UPD_GF
#define VP8_EFLAG_NO_UPD_GF
Don't update the golden frame.
Definition: vp8cx.h:88
VPX_KF_DISABLED
Definition: vpx_encoder.h:249
VPX_CODEC_USE_PSNR
#define VPX_CODEC_USE_PSNR
Initialization-time Feature Enabling.
Definition: vpx_encoder.h:87
vpx_encoder.h
Describes the encoder algorithm interface to applications.
VPX_CS_UNKNOWN
Definition: vpx_image.h:54
vpx_rational
Rational Number.
Definition: vpx_encoder.h:218
VPX_RC_ONE_PASS
Definition: vpx_encoder.h:225
VPX_CBR
Definition: vpx_encoder.h:233
vpx_codec_error
const char * vpx_codec_error(vpx_codec_ctx_t *ctx)
Retrieve error synopsis for codec context.
VPX_DL_GOOD_QUALITY
#define VPX_DL_GOOD_QUALITY
deadline parameter analogous to VPx GOOD QUALITY mode.
Definition: vpx_encoder.h:832
vpx_codec_enc_cfg::ts_number_layers
unsigned int ts_number_layers
Number of temporal coding layers.
Definition: vpx_encoder.h:644
vpx_codec_cx_pkt::frame
struct vpx_codec_cx_pkt::@1::@2 frame
VP8E_SET_GF_CBR_BOOST_PCT
Boost percentage for Golden Frame in CBR mode.
Definition: vp8cx.h:601
vpx_codec_enc_cfg::rc_undershoot_pct
unsigned int rc_undershoot_pct
Rate control adaptation undershoot control.
Definition: vpx_encoder.h:501
VPX_CS_BT_2020
Definition: vpx_image.h:59
VP9E_SET_SVC_PARAMETERS
Codec control function to set parameters for SVC.
Definition: vp8cx.h:444
vpx_svc_ref_frame_config::reference_alt_ref
int reference_alt_ref[5]
Definition: vp8cx.h:828
FULL_SUPERFRAME_DROP
Definition: vp8cx.h:841
VPX_CODEC_FPMB_STATS_PKT
Definition: vpx_encoder.h:149
VPX_Q
Definition: vpx_encoder.h:235
VP8E_SET_TEMPORAL_LAYER_ID
Codec control function to set the temporal layer id.
Definition: vp8cx.h:304
vpx_codec_peek_stream_info
vpx_codec_err_t vpx_codec_peek_stream_info(vpx_codec_iface_t *iface, const uint8_t *data, unsigned int data_sz, vpx_codec_stream_info_t *si)
Parse stream info from a buffer.
VP8E_SET_ARNR_MAXFRAMES
Codec control function to set the max no of frames to create arf.
Definition: vp8cx.h:217
vpx_codec_enc_cfg::kf_mode
enum vpx_kf_mode kf_mode
Keyframe placement mode.
Definition: vpx_encoder.h:596
vpx_codec_enc_cfg::ts_periodicity
unsigned int ts_periodicity
Length of the sequence defining frame temporal layer membership.
Definition: vpx_encoder.h:667