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Diffstat (limited to 'protocols/Tox/include/vpx/svc_context.h')
-rw-r--r-- | protocols/Tox/include/vpx/svc_context.h | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/protocols/Tox/include/vpx/svc_context.h b/protocols/Tox/include/vpx/svc_context.h new file mode 100644 index 0000000000..f4933f8d6e --- /dev/null +++ b/protocols/Tox/include/vpx/svc_context.h @@ -0,0 +1,142 @@ +/* + * Copyright (c) 2013 The WebM project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +/** + * SvcContext - input parameters and state to encode a multi-layered + * spatial SVC frame + */ + +#ifndef VPX_SVC_CONTEXT_H_ +#define VPX_SVC_CONTEXT_H_ + +#include "vpx/vp8cx.h" +#include "vpx/vpx_encoder.h" + +#ifdef __cplusplus +extern "C" { +#endif + +typedef enum SVC_ENCODING_MODE { + INTER_LAYER_PREDICTION_I, + ALT_INTER_LAYER_PREDICTION_IP, + INTER_LAYER_PREDICTION_IP, + USE_GOLDEN_FRAME +} SVC_ENCODING_MODE; + +typedef enum SVC_LOG_LEVEL { + SVC_LOG_ERROR, + SVC_LOG_INFO, + SVC_LOG_DEBUG +} SVC_LOG_LEVEL; + +typedef struct { + // public interface to svc_command options + int spatial_layers; // number of layers + int first_frame_full_size; // set to one to force first frame full size + SVC_ENCODING_MODE encoding_mode; // svc encoding strategy + SVC_LOG_LEVEL log_level; // amount of information to display + int log_print; // when set, printf log messages instead of returning the + // message with svc_get_message + + // private storage for vpx_svc_encode + void *internal; +} SvcContext; + +/** + * Set SVC options + * options are supplied as a single string separated by spaces + * Format: encoding-mode=<i|ip|alt-ip|gf> + * layers=<layer_count> + * scaling-factors=<n1>/<d1>,<n2>/<d2>,... + * quantizers=<q1>,<q2>,... + */ +vpx_codec_err_t vpx_svc_set_options(SvcContext *svc_ctx, const char *options); + +/** + * Set SVC quantizer values + * values comma separated, ordered from lowest resolution to highest + * e.g., "60,53,39,33,27" + */ +vpx_codec_err_t vpx_svc_set_quantizers(SvcContext *svc_ctx, + const char *quantizer_values); + +/** + * Set SVC scale factors + * values comma separated, ordered from lowest resolution to highest + * e.g., "4/16,5/16,7/16,11/16,16/16" + */ +vpx_codec_err_t vpx_svc_set_scale_factors(SvcContext *svc_ctx, + const char *scale_factors); + +/** + * initialize SVC encoding + */ +vpx_codec_err_t vpx_svc_init(SvcContext *svc_ctx, vpx_codec_ctx_t *codec_ctx, + vpx_codec_iface_t *iface, + vpx_codec_enc_cfg_t *cfg); +/** + * encode a frame of video with multiple layers + */ +vpx_codec_err_t vpx_svc_encode(SvcContext *svc_ctx, vpx_codec_ctx_t *codec_ctx, + struct vpx_image *rawimg, vpx_codec_pts_t pts, + int64_t duration, int deadline); + +/** + * finished with svc encoding, release allocated resources + */ +void vpx_svc_release(SvcContext *svc_ctx); + +/** + * dump accumulated statistics and reset accumulated values + */ +const char *vpx_svc_dump_statistics(SvcContext *svc_ctx); + +/** + * get status message from previous encode + */ +const char *vpx_svc_get_message(const SvcContext *svc_ctx); + +/** + * return size of encoded data to be returned by vpx_svc_get_buffer + */ +size_t vpx_svc_get_frame_size(const SvcContext *svc_ctx); + +/** + * return buffer with encoded data + */ +void *vpx_svc_get_buffer(const SvcContext *svc_ctx); + +/** + * return spatial resolution of the specified layer + */ +vpx_codec_err_t vpx_svc_get_layer_resolution(const SvcContext *svc_ctx, + int layer, + unsigned int *width, + unsigned int *height); +/** + * return number of frames that have been encoded + */ +int vpx_svc_get_encode_frame_count(const SvcContext *svc_ctx); + +/** + * return 1 if last encoded frame was a keyframe + */ +int vpx_svc_is_keyframe(const SvcContext *svc_ctx); + +/** + * force the next frame to be a keyframe + */ +void vpx_svc_set_keyframe(SvcContext *svc_ctx); + +#ifdef __cplusplus +} // extern "C" +#endif + +#endif /* VPX_SVC_CONTEXT_H_ */ |