306#define TH_DECCTL_GET_PPLEVEL_MAX (1)
313#define TH_DECCTL_SET_PPLEVEL (3)
327#define TH_ENCCTL_SET_KEYFRAME_FREQUENCY_FORCE (4)
336#define TH_DECCTL_SET_GRANPOS (5)
353#define TH_ENCCTL_SET_QUANT_PARAMS (2)
382#define TH_ENCCTL_SET_VP3_COMPATIBLE (10)
397#define TH_ENCCTL_GET_SPLEVEL_MAX (12)
412#define TH_ENCCTL_SET_SPLEVEL (14)
418#define OC_DISABLED -11
419#define OC_BADHEADER -20
420#define OC_NOTFORMAT -21
421#define OC_VERSION -22
423#define OC_BADPACKET -24
424#define OC_NEWPACKET -25
733 char *tag,
char *value);
Theora bitstream info.
Definition theora.h:206
ogg_uint32_t keyframe_frequency
Definition theora.h:232
int target_bitrate
nominal bitrate in bits per second
Definition theora.h:218
ogg_uint32_t width
encoded frame width
Definition theora.h:207
int keyframe_auto_p
Definition theora.h:231
ogg_uint32_t frame_height
display frame height
Definition theora.h:210
int quick_p
Quick encode/decode.
Definition theora.h:220
ogg_uint32_t fps_numerator
frame rate numerator
Definition theora.h:213
ogg_int32_t sharpness
Definition theora.h:239
ogg_uint32_t keyframe_data_target_bitrate
Definition theora.h:235
ogg_uint32_t aspect_numerator
pixel aspect ratio numerator
Definition theora.h:215
theora_colorspace colorspace
colorspace
Definition theora.h:217
theora_pixelformat pixelformat
chroma subsampling mode to expect
Definition theora.h:241
void * codec_setup
Definition theora.h:227
int quality
Nominal quality setting, 0-63.
Definition theora.h:219
unsigned char version_minor
Definition theora.h:224
unsigned char version_major
Definition theora.h:223
ogg_uint32_t frame_width
display frame width
Definition theora.h:209
ogg_uint32_t offset_y
vertical offset of the displayed frame
Definition theora.h:212
ogg_int32_t keyframe_auto_threshold
Definition theora.h:236
ogg_uint32_t fps_denominator
frame rate denominator
Definition theora.h:214
unsigned char version_subminor
Definition theora.h:225
ogg_uint32_t keyframe_mindistance
Definition theora.h:237
ogg_int32_t noise_sensitivity
Definition theora.h:238
ogg_uint32_t keyframe_frequency_force
Definition theora.h:233
ogg_uint32_t height
encoded frame height
Definition theora.h:208
int dropframes_p
Definition theora.h:230
ogg_uint32_t offset_x
horizontal offset of the displayed frame
Definition theora.h:211
ogg_uint32_t aspect_denominator
pixel aspect ratio denominator
Definition theora.h:216
Codec internal state and context.
Definition theora.h:247
theora_info * i
Definition theora.h:248
void * internal_encode
Definition theora.h:251
ogg_int64_t granulepos
Definition theora.h:249
void * internal_decode
Definition theora.h:252
A YUV buffer for passing uncompressed frames to and from the codec.
Definition theora.h:147
int y_height
Height of the luminance plane.
Definition theora.h:149
int uv_height
Height of the chroma planes.
Definition theora.h:153
unsigned char * y
Pointer to start of luminance data.
Definition theora.h:155
unsigned char * u
Pointer to start of Cb data.
Definition theora.h:156
int uv_width
Width of the Cb and Cr chroma planes.
Definition theora.h:152
int y_stride
Offset in bytes between successive rows.
Definition theora.h:150
unsigned char * v
Pointer to start of Cr data.
Definition theora.h:157
int y_width
Width of the Y' luminance plane.
Definition theora.h:148
int uv_stride
Offset between successive chroma rows.
Definition theora.h:154
int theora_decode_header(theora_info *ci, theora_comment *cc, ogg_packet *op)
Decode an Ogg packet, with the expectation that the packet contains an initial header,...
void theora_comment_clear(theora_comment *tc)
Clear an allocated theora_comment struct so that it can be freed.
int theora_decode_YUVout(theora_state *th, yuv_buffer *yuv)
Output the next available frame of decoded YUV data.
int theora_encode_init(theora_state *th, theora_info *ti)
Initialize the theora encoder.
int theora_comment_query_count(theora_comment *tc, char *tag)
Look up the number of instances of a tag.
int theora_control(theora_state *th, int req, void *buf, size_t buf_sz)
Encoder control function.
int theora_decode_init(theora_state *th, theora_info *c)
Initialize a theora_state handle for decoding.
void theora_info_init(theora_info *c)
Initialize a theora_info structure.
void theora_comment_add_tag(theora_comment *tc, char *tag, char *value)
Add a comment to an initialized theora_comment structure.
int theora_packet_iskeyframe(ogg_packet *op)
Report whether a theora packet is a keyframe or not.
double theora_granule_time(theora_state *th, ogg_int64_t granulepos)
Convert a granulepos to absolute time in seconds.
int theora_encode_header(theora_state *t, ogg_packet *op)
Request a packet containing the initial header.
int theora_encode_comment(theora_comment *tc, ogg_packet *op)
Request a comment header packet from provided metadata.
int theora_encode_tables(theora_state *t, ogg_packet *op)
Request a packet containing the codebook tables for the stream.
int theora_encode_packetout(theora_state *t, int last_p, ogg_packet *op)
Request the next packet of encoded video.
void theora_comment_add(theora_comment *tc, char *comment)
Add a comment to an initialized theora_comment structure.
ogg_int64_t theora_granule_frame(theora_state *th, ogg_int64_t granulepos)
Convert a granulepos to an absolute frame index, starting at 0.
void theora_comment_init(theora_comment *tc)
Initialize an allocated theora_comment structure.
theora_colorspace
A Colorspace.
Definition theora.h:164
@ OC_CS_ITU_REC_470BG
This is the best option for 'PAL' content.
Definition theora.h:167
@ OC_CS_NSPACES
This marks the end of the defined colorspaces.
Definition theora.h:168
@ OC_CS_ITU_REC_470M
This is the best option for 'NTSC' content.
Definition theora.h:166
@ OC_CS_UNSPECIFIED
The colorspace is unknown or unspecified.
Definition theora.h:165
int theora_decode_packetin(theora_state *th, ogg_packet *op)
Input a packet containing encoded data into the theora decoder.
void theora_clear(theora_state *t)
Free all internal data associated with a theora_state handle.
int theora_packet_isheader(ogg_packet *op)
Report whether a theora packet is a header or not This function does no verification beyond checking ...
void theora_info_clear(theora_info *c)
Clear a theora_info structure.
int theora_encode_YUVin(theora_state *t, yuv_buffer *yuv)
Submit a YUV buffer to the theora encoder.
const char * theora_version_string(void)
Retrieve a human-readable string to identify the encoder vendor and version.
char * theora_comment_query(theora_comment *tc, char *tag, int count)
Look up a comment value by tag.
int theora_granule_shift(theora_info *ti)
Report the granulepos shift radix.
ogg_uint32_t theora_version_number(void)
Retrieve a 32-bit version number.
theora_pixelformat
A Chroma subsampling.
Definition theora.h:178
@ OC_PF_444
No chroma subsampling at all (4:4:4)
Definition theora.h:182
@ OC_PF_422
Horizonatal chroma subsampling by 2 (4:2:2)
Definition theora.h:181
@ OC_PF_420
Chroma subsampling by 2 in each direction (4:2:0)
Definition theora.h:179
@ OC_PF_RSVD
Reserved value.
Definition theora.h:180