#include <stdarg.h>
-#define X264_BUILD 94
+#define X264_BUILD 102
/* x264_t:
* opaque handler for encoder */
typedef struct x264_t x264_t;
+/****************************************************************************
+ * NAL structure and functions
+ ****************************************************************************/
+
+enum nal_unit_type_e
+{
+ NAL_UNKNOWN = 0,
+ NAL_SLICE = 1,
+ NAL_SLICE_DPA = 2,
+ NAL_SLICE_DPB = 3,
+ NAL_SLICE_DPC = 4,
+ NAL_SLICE_IDR = 5, /* ref_idc != 0 */
+ NAL_SEI = 6, /* ref_idc == 0 */
+ NAL_SPS = 7,
+ NAL_PPS = 8,
+ NAL_AUD = 9,
+ NAL_FILLER = 12,
+ /* ref_idc == 0 for 6,9,10,11,12 */
+};
+enum nal_priority_e
+{
+ NAL_PRIORITY_DISPOSABLE = 0,
+ NAL_PRIORITY_LOW = 1,
+ NAL_PRIORITY_HIGH = 2,
+ NAL_PRIORITY_HIGHEST = 3,
+};
+
+/* The data within the payload is already NAL-encapsulated; the ref_idc and type
+ * are merely in the struct for easy access by the calling application.
+ * All data returned in an x264_nal_t, including the data in p_payload, is no longer
+ * valid after the next call to x264_encoder_encode. Thus it must be used or copied
+ * before calling x264_encoder_encode or x264_encoder_headers again. */
+typedef struct
+{
+ int i_ref_idc; /* nal_priority_e */
+ int i_type; /* nal_unit_type_e */
+ int b_long_startcode;
+ int i_first_mb; /* If this NAL is a slice, the index of the first MB in the slice. */
+ int i_last_mb; /* If this NAL is a slice, the index of the last MB in the slice. */
+
+ /* Size of payload in bytes. */
+ int i_payload;
+ /* If param->b_annexb is set, Annex-B bytestream with startcode.
+ * Otherwise, startcode is replaced with a 4-byte size.
+ * This size is the size used in mp4/similar muxing; it is equal to i_payload-4 */
+ uint8_t *p_payload;
+} x264_nal_t;
+
/****************************************************************************
* Encoder parameters
****************************************************************************/
#define X264_CPU_ARMV6 0x020000
#define X264_CPU_NEON 0x040000 /* ARM NEON */
#define X264_CPU_FAST_NEON_MRC 0x080000 /* Transfer from NEON to ARM register is fast (Cortex-A9) */
+#define X264_CPU_SLOW_CTZ 0x100000 /* BSR/BSF x86 instructions are really slow on some CPUs */
+#define X264_CPU_SLOW_ATOM 0x200000 /* The Atom just sucks */
/* Analyse flags
*/
#define X264_B_PYRAMID_STRICT 1
#define X264_B_PYRAMID_NORMAL 2
#define X264_KEYINT_MIN_AUTO 0
+#define X264_KEYINT_MAX_INFINITE (1<<30)
+#define X264_OPEN_GOP_NONE 0
+#define X264_OPEN_GOP_NORMAL 1
+#define X264_OPEN_GOP_BLURAY 2
static const char * const x264_direct_pred_names[] = { "none", "spatial", "temporal", "auto", 0 };
static const char * const x264_motion_est_names[] = { "dia", "hex", "umh", "esa", "tesa", 0 };
static const char * const x264_transfer_names[] = { "", "bt709", "undef", "", "bt470m", "bt470bg", "smpte170m", "smpte240m", "linear", "log100", "log316", 0 };
static const char * const x264_colmatrix_names[] = { "GBR", "bt709", "undef", "", "fcc", "bt470bg", "smpte170m", "smpte240m", "YCgCo", 0 };
static const char * const x264_nal_hrd_names[] = { "none", "vbr", "cbr", 0 };
+static const char * const x264_open_gop_names[] = { "none", "normal", "bluray", 0 };
/* Colorspace type
* legacy only; nothing other than I420 is really supported. */
#define X264_TYPE_P 0x0003
#define X264_TYPE_BREF 0x0004 /* Non-disposable B-frame */
#define X264_TYPE_B 0x0005
+#define X264_TYPE_KEYFRAME 0x0006 /* IDR or I depending on b_open_gop option */
#define IS_X264_TYPE_I(x) ((x)==X264_TYPE_I || (x)==X264_TYPE_IDR)
#define IS_X264_TYPE_B(x) ((x)==X264_TYPE_B || (x)==X264_TYPE_BREF)
/* Bitstream parameters */
int i_frame_reference; /* Maximum number of reference frames */
+ int i_dpb_size; /* Force a DPB size larger than that implied by B-frames and reference frames.
+ * Useful in combination with interactive error resilience. */
int i_keyint_max; /* Force an IDR keyframe at this interval */
int i_keyint_min; /* Scenecuts closer together than this are coded as I, not IDR. */
int i_scenecut_threshold; /* how aggressively to insert extra I frames */
int i_bframe_adaptive;
int i_bframe_bias;
int i_bframe_pyramid; /* Keep some B-frames as references: 0=off, 1=strict hierarchical, 2=normal */
+ int i_open_gop; /* Open gop: 1=display order, 2=bluray compatibility braindamage mode */
int b_deblocking_filter;
int i_deblocking_filter_alphac0; /* [-6, 6] -6 light filter, 6 strong */
int b_pic_struct;
+ /* Fake Interlaced.
+ *
+ * Used only when b_interlaced=0. Setting this flag makes it possible to flag the stream as PAFF interlaced yet
+ * encode all frames progessively. It is useful for encoding 25p and 30p Blu-Ray streams.
+ */
+
+ int b_fake_interlaced;
+
/* Slicing parameters */
int i_slice_max_size; /* Max size per slice in bytes; includes estimated NAL overhead. */
int i_slice_max_mbs; /* Max number of MBs per slice; overrides i_slice_count. */
* i.e. when an x264_param_t is passed to x264_t in an x264_picture_t or in zones.
* Not used when x264_encoder_reconfig is called directly. */
void (*param_free)( void* );
+
+ /* Optional low-level callback for low-latency encoding. Called for each output NAL unit
+ * immediately after the NAL unit is finished encoding. This allows the calling application
+ * to begin processing video data (e.g. by sending packets over a network) before the frame
+ * is done encoding.
+ *
+ * This callback MUST do the following in order to work correctly:
+ * 1) Have available an output buffer of at least size nal->i_payload*3/2 + 5 + 16.
+ * 2) Call x264_nal_encode( h, dst, nal ), where dst is the output buffer.
+ * After these steps, the content of nal is valid and can be used in the same way as if
+ * the NAL unit were output by x264_encoder_encode.
+ *
+ * This does not need to be synchronous with the encoding process: the data pointed to
+ * by nal (both before and after x264_nal_encode) will remain valid until the next
+ * x264_encoder_encode call. The callback must be re-entrant.
+ *
+ * This callback does not work with frame-based threads; threads must be disabled
+ * or sliced-threads enabled. This callback also does not work as one would expect
+ * with HRD -- since the buffering period SEI cannot be calculated until the frame
+ * is finished encoding, it will not be sent via this callback.
+ *
+ * Note also that the NALs are not necessarily returned in order when sliced threads is
+ * enabled. Accordingly, the variable i_first_mb and i_last_mb are available in
+ * x264_nal_t to help the calling application reorder the slices if necessary.
+ *
+ * When this callback is enabled, x264_encoder_encode does not return valid NALs;
+ * the calling application is expected to acquire all output NALs through the callback.
+ *
+ * It is generally sensible to combine this callback with a use of slice-max-mbs or
+ * slice-max-size. */
+ void (*nalu_process) ( x264_t *h, x264_nal_t *nal );
} x264_param_t;
+void x264_nal_encode( x264_t *h, uint8_t *dst, x264_nal_t *nal );
+
/****************************************************************************
* H.264 level restriction information
****************************************************************************/
/* Multiple tunings can be used if separated by a delimiter in ",./-+",
* however multiple psy tunings cannot be used.
- * film, animation, grain, psnr, and ssim are psy tunings.
+ * film, animation, grain, stillimage, psnr, and ssim are psy tunings.
*
* returns 0 on success, negative on failure (e.g. invalid preset/tune name). */
int x264_param_default_preset( x264_param_t *, const char *preset, const char *tune );
uint8_t *plane[4]; /* Pointers to each plane */
} x264_image_t;
+typedef struct
+{
+ /* In: an array of quantizer offsets to be applied to this image during encoding.
+ * These are added on top of the decisions made by x264.
+ * Offsets can be fractional; they are added before QPs are rounded to integer.
+ * Adaptive quantization must be enabled to use this feature. Behavior if quant
+ * offsets differ between encoding passes is undefined.
+ *
+ * Array contains one offset per macroblock, in raster scan order. In interlaced
+ * mode, top-field MBs and bottom-field MBs are interleaved at the row level. */
+ float *quant_offsets;
+ /* In: optional callback to free quant_offsets when used.
+ * Useful if one wants to use a different quant_offset array for each frame. */
+ void (*quant_offsets_free)( void* );
+} x264_image_properties_t;
+
typedef struct
{
/* In: force picture type (if not auto)
x264_param_t *param;
/* In: raw data */
x264_image_t img;
+ /* In: optional information to modify encoder decisions for this frame */
+ x264_image_properties_t prop;
/* Out: HRD timing information. Output only when i_nal_hrd is set. */
x264_hrd_t hrd_timing;
/* private user data. libx264 doesn't touch this,
void *opaque;
} x264_picture_t;
+/* x264_picture_init:
+ * initialize an x264_picture_t. Needs to be done if the calling application
+ * allocates its own x264_picture_t as opposed to using x264_picture_alloc. */
+void x264_picture_init( x264_picture_t *pic );
+
/* x264_picture_alloc:
* alloc data for a picture. You must call x264_picture_clean on it.
* returns 0 on success, or -1 on malloc failure. */
* x264_picture_alloc ONLY */
void x264_picture_clean( x264_picture_t *pic );
-/****************************************************************************
- * NAL structure and functions
- ****************************************************************************/
-
-enum nal_unit_type_e
-{
- NAL_UNKNOWN = 0,
- NAL_SLICE = 1,
- NAL_SLICE_DPA = 2,
- NAL_SLICE_DPB = 3,
- NAL_SLICE_DPC = 4,
- NAL_SLICE_IDR = 5, /* ref_idc != 0 */
- NAL_SEI = 6, /* ref_idc == 0 */
- NAL_SPS = 7,
- NAL_PPS = 8,
- NAL_AUD = 9,
- NAL_FILLER = 12,
- /* ref_idc == 0 for 6,9,10,11,12 */
-};
-enum nal_priority_e
-{
- NAL_PRIORITY_DISPOSABLE = 0,
- NAL_PRIORITY_LOW = 1,
- NAL_PRIORITY_HIGH = 2,
- NAL_PRIORITY_HIGHEST = 3,
-};
-
-/* The data within the payload is already NAL-encapsulated; the ref_idc and type
- * are merely in the struct for easy access by the calling application.
- * All data returned in an x264_nal_t, including the data in p_payload, is no longer
- * valid after the next call to x264_encoder_encode. Thus it must be used or copied
- * before calling x264_encoder_encode or x264_encoder_headers again. */
-typedef struct
-{
- int i_ref_idc; /* nal_priority_e */
- int i_type; /* nal_unit_type_e */
-
- /* Size of payload in bytes. */
- int i_payload;
- /* If param->b_annexb is set, Annex-B bytestream with 4-byte startcode.
- * Otherwise, startcode is replaced with a 4-byte size.
- * This size is the size used in mp4/similar muxing; it is equal to i_payload-4 */
- uint8_t *p_payload;
-} x264_nal_t;
-
/****************************************************************************
* Encoder functions
****************************************************************************/
* return the number of currently delayed (buffered) frames
* this should be used at the end of the stream, to know when you have all the encoded frames. */
int x264_encoder_delayed_frames( x264_t * );
+/* x264_encoder_intra_refresh:
+ * If an intra refresh is not in progress, begin one with the next P-frame.
+ * If an intra refresh is in progress, begin one as soon as the current one finishes.
+ * Requires that b_intra_refresh be set.
+ *
+ * Useful for interactive streaming where the client can tell the server that packet loss has
+ * occurred. In this case, keyint can be set to an extremely high value so that intra refreshes
+ * only occur when calling x264_encoder_intra_refresh.
+ *
+ * In multi-pass encoding, if x264_encoder_intra_refresh is called differently in each pass,
+ * behavior is undefined.
+ *
+ * Should not be called during an x264_encoder_encode. */
+void x264_encoder_intra_refresh( x264_t * );
+/* x264_encoder_invalidate_reference:
+ * An interactive error resilience tool, designed for use in a low-latency one-encoder-few-clients
+ * system. When the client has packet loss or otherwise incorrectly decodes a frame, the encoder
+ * can be told with this command to "forget" the frame and all frames that depend on it, referencing
+ * only frames that occurred before the loss. This will force a keyframe if no frames are left to
+ * reference after the aforementioned "forgetting".
+ *
+ * It is strongly recommended to use a large i_dpb_size in this case, which allows the encoder to
+ * keep around extra, older frames to fall back on in case more recent frames are all invalidated.
+ * Unlike increasing i_frame_reference, this does not increase the number of frames used for motion
+ * estimation and thus has no speed impact. It is also recommended to set a very large keyframe
+ * interval, so that keyframes are not used except as necessary for error recovery.
+ *
+ * x264_encoder_invalidate_reference is not currently compatible with the use of B-frames or intra
+ * refresh.
+ *
+ * In multi-pass encoding, if x264_encoder_invalidate_reference is called differently in each pass,
+ * behavior is undefined.
+ *
+ * Should not be called during an x264_encoder_encode.
+ *
+ * Returns 0 on success, negative on failure. */
+int x264_encoder_invalidate_reference( x264_t *, int64_t pts );
#endif
projects / x264 / blobdiff