vmixdec.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "libavutil/intreadwrite.h"
#include "libavutil/mem.h"
#include "libavutil/mem_internal.h"
#include "avcodec.h"
#include "codec_internal.h"
#include "golomb.h"
#include "get_bits.h"
#include "idctdsp.h"
#include "thread.h"

Go to the source code of this file.

Data Structures
struct	SliceContext
struct	VMIXContext

Macros
#define	CACHED_BITSTREAM_READER   !ARCH_X86_32

Functions
static av_cold int	decode_init (AVCodecContext *avctx)
static int	get_se_golomb_vmix (GetBitContext *gb)
static int	decode_dcac (AVCodecContext *avctx, GetBitContext *dc_gb, GetBitContext *ac_gb, unsigned *dcrun, unsigned *acrun, AVFrame *frame, int width, int by, int plane)
static int	decode_slice (AVCodecContext *avctx, AVFrame *frame, const uint8_t *dc_src, unsigned dc_slice_size, const uint8_t *ac_src, unsigned ac_slice_size, int by)
static int	decode_slices (AVCodecContext *avctx, void *arg, int n, int thread_nb)
static int	decode_frame (AVCodecContext *avctx, AVFrame *frame, int *got_frame, AVPacket *avpkt)
static av_cold int	decode_end (AVCodecContext *avctx)

Variables
static const uint8_t	quality []
static const uint8_t	quant [64]
const FFCodec	ff_vmix_decoder

Macro Definition Documentation

CACHED_BITSTREAM_READER

#define CACHED_BITSTREAM_READER   !ARCH_X86_32

Definition at line 32 of file vmixdec.c.

Function Documentation

decode_init()

static av_cold int decode_init ( AVCodecContext *  avctx )

static

Definition at line 82 of file vmixdec.c.

get_se_golomb_vmix()

static int get_se_golomb_vmix ( GetBitContext *  gb )

inlinestatic

Definition at line 98 of file vmixdec.c.

Referenced by decode_dcac().

decode_dcac()

static int decode_dcac ( AVCodecContext *  avctx, GetBitContext *  dc_gb, GetBitContext *  ac_gb, unsigned *  dcrun, unsigned *  acrun, AVFrame *  frame, int  width, int  by, int  plane  )

static

Definition at line 105 of file vmixdec.c.

Referenced by decode_slice().

decode_slice()

static int decode_slice ( AVCodecContext *  avctx, AVFrame *  frame, const uint8_t *  dc_src, unsigned  dc_slice_size, const uint8_t *  ac_src, unsigned  ac_slice_size, int  by  )

static

Definition at line 164 of file vmixdec.c.

Referenced by decode_slices().

decode_slices()

static int decode_slices ( AVCodecContext *  avctx, void *  arg, int  n, int  thread_nb  )

static

Definition at line 206 of file vmixdec.c.

Referenced by decode_frame().

decode_frame()

static int decode_frame ( AVCodecContext *  avctx, AVFrame *  frame, int *  got_frame, AVPacket *  avpkt  )

static

Definition at line 220 of file vmixdec.c.

decode_end()

static av_cold int decode_end ( AVCodecContext *  avctx )

static

Definition at line 300 of file vmixdec.c.

Variable Documentation

quality

const uint8_t quality[]

static

Initial value:

= {
    1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
    1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
    1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
    1, 1, 1, 1, 1, 1,64,63,62,61,
   60,59,58,57,56,55,54,53,52,51,
   50,49,48,47,46,45,44,43,42,41,
   40,39,38,37,36,35,34,33,32,31,
   30,29,28,27,26,25,24,23,22,21,
   20,19,18,17,16,15,14,13,12,11,
   10, 9, 8, 7, 6, 5, 4, 3, 2, 1,
}

Definition at line 58 of file vmixdec.c.

Referenced by decode_frame().

quant

const uint8_t quant[64]

static

Initial value:

= {
    16, 16, 19, 22, 22, 26, 26, 27,
    16, 16, 22, 22, 26, 27, 27, 29,
    19, 22, 26, 26, 27, 29, 29, 35,
    22, 24, 27, 27, 29, 32, 34, 38,
    26, 27, 29, 29, 32, 35, 38, 46,
    27, 29, 34, 34, 35, 40, 46, 56,
    29, 34, 34, 37, 40, 48, 56, 69,
    34, 37, 38, 40, 48, 58, 69, 83,
}

Definition at line 71 of file vmixdec.c.

Referenced by bonk_decode(), calc_one_scale(), celt_quant_fine(), choose_vlc_set(), codeblock(), create_vorbis_context(), decode_block(), decode_frame(), decode_hq_slice(), decode_lowdelay_slice(), decode_subband(), decode_subframe(), dv_decode_video_segment(), encode_slice(), encode_subband(), ff_dcaadpcm_do_real(), ff_dct_unquantize_mpeg1_inter_mmi(), ff_dct_unquantize_mpeg1_intra_mmi(), ff_dct_unquantize_mpeg2_intra_mmi(), ff_quantize_and_encode_band_cost(), get_qtable(), h261_handle_packet(), hqa_decode_frame(), hqa_decode_slice(), hqx_idct_put(), idct_col(), init_video_param(), ivi_decode_blocks(), ivi_decode_coded_blocks(), pcm_bluray_encode_init(), pcm_dvd_encode_init(), put_blocks(), quant_band_template(), quantize_and_encode_band_cost_template(), quantize_value(), rate_control(), tgq_calculate_qtable(), tqi_calculate_qtable(), unquantize_dct_coeffs(), vaapi_encode_mjpeg_init_picture_params(), vaapi_encode_mjpeg_write_extra_buffer(), vaapi_encode_vp8_write_quant_table(), vaapi_mjpeg_decode_slice(), vaapi_vp8_start_frame(), vc1_decode_i_block_adv(), vc1_decode_intra_block(), vc1_decode_p_block(), x8_loop_filter(), and x8_setup_spatial_predictor().

ff_vmix_decoder

const FFCodec ff_vmix_decoder

Initial value:

= {
    .p.name           = "vmix",
    CODEC_LONG_NAME("vMix Video"),
    .p.type           = AVMEDIA_TYPE_VIDEO,
    .p.id             = AV_CODEC_ID_VMIX,
    .priv_data_size   = sizeof(VMIXContext),
    .init             = decode_init,
    .close            = decode_end,
    FF_CODEC_DECODE_CB(decode_frame),
    .p.capabilities   = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS |
                        AV_CODEC_CAP_SLICE_THREADS,
}

Definition at line 307 of file vmixdec.c.