54 if (format == 0 || format == 6) {
79 if(format == 0 || format == 7){
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
const uint8_t * y_dc_scale_table
qscale -> y_dc_scale table
static unsigned int get_bits(GetBitContext *s, int n)
Read 1-25 bits.
static av_cold int init(AVCodecContext *avctx)
static int check_marker(void *logctx, GetBitContext *s, const char *msg)
int obmc
overlapped block motion compensation
AVRational sample_aspect_ratio
sample aspect ratio (0 if unknown) That is the width of a pixel divided by the height of the pixel...
const uint16_t ff_h263_format[8][2]
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample format(the sample packing is implied by the sample format) and sample rate.The lists are not just lists
static void decode(AVCodecContext *dec_ctx, AVPacket *pkt, AVFrame *frame, FILE *outfile)
const uint8_t ff_mpeg1_dc_scale_table[128]
int lowres
low resolution decoding, 1-> 1/2 size, 2->1/4 size
static int get_bits_left(GetBitContext *gb)
int h263_plus
H.263+ headers.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
int unrestricted_mv
mv can point outside of the coded picture
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
const char * name
Name of the codec implementation.
int ff_h263_decode_init(AVCodecContext *avctx)
int ff_h263_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
#define AV_CODEC_CAP_DRAW_HORIZ_BAND
Decoder can use draw_horiz_band callback.
int pb_frame
PB-frame mode (0 = none, 1 = base, 2 = improved)
#define FRAME_SKIPPED
Return value for header parsers if frame is not coded.
int ff_intel_h263_decode_picture_header(MpegEncContext *s)
int height
picture size. must be a multiple of 16
static unsigned int get_bits1(GetBitContext *s)
static void skip_bits1(GetBitContext *s)
static void skip_bits(GetBitContext *s, int n)
int f_code
forward MV resolution
int pict_type
AV_PICTURE_TYPE_I, AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, ...
static enum AVPixelFormat pix_fmts[]
const AVRational ff_h263_pixel_aspect[16]
const uint8_t * c_dc_scale_table
qscale -> c_dc_scale table
struct AVCodecContext * avctx
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
#define FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM
The decoder extracts and fills its parameters even if the frame is skipped due to the skip_frame sett...
int ff_h263_decode_end(AVCodecContext *avctx)
int chroma_qscale
chroma QP
void ff_h263_show_pict_info(MpegEncContext *s)
Print picture info if FF_DEBUG_PICT_INFO is set.
static int skip_1stop_8data_bits(GetBitContext *gb)
int h263_long_vectors
use horrible H.263v1 long vector mode
AVPixelFormat
Pixel format.
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.