diff options
Diffstat (limited to 'gst-libs/ext/libav/libavcodec/ivi_common.h')
| -rw-r--r-- | gst-libs/ext/libav/libavcodec/ivi_common.h | 76 |
1 files changed, 64 insertions, 12 deletions
diff --git a/gst-libs/ext/libav/libavcodec/ivi_common.h b/gst-libs/ext/libav/libavcodec/ivi_common.h index 4b2ae06..07736f2 100644 --- a/gst-libs/ext/libav/libavcodec/ivi_common.h +++ b/gst-libs/ext/libav/libavcodec/ivi_common.h @@ -34,6 +34,8 @@ #include <stdint.h> #define IVI_VLC_BITS 13 ///< max number of bits of the ivi's huffman codes +#define IVI4_STREAM_ANALYSER 0 +#define IVI5_IS_PROTECTED 0x20 /** * huffman codebook descriptor @@ -116,6 +118,7 @@ typedef struct { int ypos; int width; int height; + int mb_size; int is_empty; ///< = 1 if this tile doesn't contain any data int data_size; ///< size of the data in bytes int num_MBs; ///< number of macroblocks in this tile @@ -132,6 +135,7 @@ typedef struct { int band_num; ///< band number int width; int height; + int aheight; ///< aligned band height const uint8_t *data_ptr; ///< ptr to the first byte of the band data int data_size; ///< size of the band data int16_t *buf; ///< pointer to the output buffer for this band @@ -192,6 +196,62 @@ typedef struct { uint8_t chroma_bands; } IVIPicConfig; +typedef struct IVI45DecContext { + GetBitContext gb; + AVFrame frame; + RVMapDesc rvmap_tabs[9]; ///< local corrected copy of the static rvmap tables + + uint32_t frame_num; + int frame_type; + int prev_frame_type; ///< frame type of the previous frame + uint32_t data_size; ///< size of the frame data in bytes from picture header + int is_scalable; + int transp_status; ///< transparency mode status: 1 - enabled + const uint8_t *frame_data; ///< input frame data pointer + int inter_scal; ///< signals a sequence of scalable inter frames + uint32_t frame_size; ///< frame size in bytes + uint32_t pic_hdr_size; ///< picture header size in bytes + uint8_t frame_flags; + uint16_t checksum; ///< frame checksum + + IVIPicConfig pic_conf; + IVIPlaneDesc planes[3]; ///< color planes + + int buf_switch; ///< used to switch between three buffers + int dst_buf; ///< buffer index for the currently decoded frame + int ref_buf; ///< inter frame reference buffer index + int ref2_buf; ///< temporal storage for switching buffers + + IVIHuffTab mb_vlc; ///< current macroblock table descriptor + IVIHuffTab blk_vlc; ///< current block table descriptor + + uint8_t rvmap_sel; + uint8_t in_imf; + uint8_t in_q; ///< flag for explicitly stored quantiser delta + uint8_t pic_glob_quant; + uint8_t unknown1; + + uint16_t gop_hdr_size; + uint8_t gop_flags; + uint32_t lock_word; + +#if IVI4_STREAM_ANALYSER + uint8_t has_b_frames; + uint8_t has_transp; + uint8_t uses_tiling; + uint8_t uses_haar; + uint8_t uses_fullpel; +#endif + + int (*decode_pic_hdr) (struct IVI45DecContext *ctx, AVCodecContext *avctx); + int (*decode_band_hdr) (struct IVI45DecContext *ctx, IVIBandDesc *band, AVCodecContext *avctx); + int (*decode_mb_info) (struct IVI45DecContext *ctx, IVIBandDesc *band, IVITile *tile, AVCodecContext *avctx); + void (*switch_buffers) (struct IVI45DecContext *ctx); + int (*is_nonnull_frame)(struct IVI45DecContext *ctx); + + int gop_invalid; +} IVI45DecContext; + /** compare some properties of two pictures */ static inline int ivi_pic_config_cmp(IVIPicConfig *str1, IVIPicConfig *str2) { @@ -316,18 +376,6 @@ int ff_ivi_dec_tile_data_size(GetBitContext *gb); int ff_ivi_decode_blocks(GetBitContext *gb, IVIBandDesc *band, IVITile *tile); /** - * Handle empty tiles by performing data copying and motion - * compensation respectively. - * - * @param[in] avctx ptr to the AVCodecContext - * @param[in] band pointer to the band descriptor - * @param[in] tile pointer to the tile descriptor - * @param[in] mv_scale scaling factor for motion vectors - */ -void ff_ivi_process_empty_tile(AVCodecContext *avctx, IVIBandDesc *band, - IVITile *tile, int32_t mv_scale); - -/** * Convert and output the current plane. * This conversion is done by adding back the bias value of 128 * (subtracted in the encoder) and clipping the result. @@ -348,4 +396,8 @@ uint16_t ivi_calc_band_checksum (IVIBandDesc *band); */ int ivi_check_band (IVIBandDesc *band, const uint8_t *ref, int pitch); +int ff_ivi_decode_frame(AVCodecContext *avctx, void *data, int *data_size, + AVPacket *avpkt); +av_cold int ff_ivi_decode_close(AVCodecContext *avctx); + #endif /* AVCODEC_IVI_COMMON_H */ |