23 #include "libavutil/common.h"
36 z_stream *zstream = &zc->
zstream;
56 zret = inflateReset(zstream);
67 zstream->next_in = avpkt->
data;
68 zstream->avail_in = avpkt->
size;
78 zstream->next_out = dst;
79 zstream->avail_out = avctx->
width << 1;
81 zret = inflate(zstream, Z_SYNC_FLUSH);
82 if (zret != Z_OK && zret != Z_STREAM_END) {
84 "Inflate failed with return code: %d.\n", zret);
89 for (j = 0; j < avctx->
width << 1; j++)
90 dst[j] += prev[j] & -!dst[j];
119 z_stream *zstream = &zc->
zstream;
125 zstream->zalloc = Z_NULL;
126 zstream->zfree = Z_NULL;
127 zstream->opaque = Z_NULL;
129 zret = inflateInit(zstream);
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
This structure describes decoded (raw) audio or video data.
void av_log(void *avcl, int level, const char *fmt,...) av_printf_format(3
Send the specified message to the log if the level is less than or equal to the current av_log_level...
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
int bits_per_raw_sample
Bits per sample/pixel of internal libavcodec pixel/sample format.
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
static int decode(MimicContext *ctx, int quality, int num_coeffs, int is_iframe)
int av_frame_ref(AVFrame *dst, const AVFrame *src)
Set up a new reference to the data described by the source frame.
static av_cold int zerocodec_decode_close(AVCodecContext *avctx)
#define CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
static int zerocodec_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Libavcodec external API header.
int flags
A combination of AV_PKT_FLAG values.
enum AVPictureType pict_type
Picture type of the frame.
int width
picture width / height.
packed YUV 4:2:2, 16bpp, Cb Y0 Cr Y1
main external API structure.
static void close(AVCodecParserContext *s)
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
Get a buffer for a frame.
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
common internal api header.
static av_cold int init(AVCodecParserContext *s)
int key_frame
1 -> keyframe, 0-> not
static av_cold int zerocodec_decode_init(AVCodecContext *avctx)
This structure stores compressed data.
#define AV_GET_BUFFER_FLAG_REF
The decoder will keep a reference to the frame and may reuse it later.
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
AVCodec ff_zerocodec_decoder