77 for (i = dx + h; i > dx; i--) {
78 nsptr = sptr + i * stride + dy * 3;
79 npfptr = pfptr + i * stride + dy * 3;
80 for (j = 0; j < w * 3; j++) {
81 diff |= npfptr[j] ^ nsptr[j];
112 "Input dimensions too large, input must be max 4096x4096 !\n");
117 memset(&s->
zstream, 0,
sizeof(z_stream));
142 int h_blocks, v_blocks, h_part, v_part, i, j;
148 put_bits(&pb, 4, block_width / 16 - 1);
150 put_bits(&pb, 4, block_height / 16 - 1);
161 for (j = 0; j < v_blocks + (v_part ? 1 : 0); j++) {
164 int cur_blk_height = (j < v_blocks) ? block_height : v_part;
167 for (i = 0; i < h_blocks + (h_part ? 1 : 0); i++) {
169 int cur_blk_width = (i < h_blocks) ? block_width : h_part;
177 x_pos, cur_blk_height, cur_blk_width,
180 if (res || *I_frame) {
182 ret = compress2(ptr + 2, &zsize, s->
tmpblock,
183 3 * cur_blk_width * cur_blk_height, 9);
188 "error while compressing block %dx%d\n", i, j);
190 bytestream_put_be16(&ptr, zsize);
191 buf_pos += zsize + 2;
195 bytestream_put_be16(&ptr, 0);
211 const AVFrame *pict,
int *got_packet)
214 const AVFrame *
const p = pict;
218 int opt_w = 4, opt_h = 4;
261 #if FF_API_CODED_FRAME 270 #if FF_API_CODED_FRAME static int encode_bitstream(FlashSVContext *s, const AVFrame *p, uint8_t *buf, int buf_size, int block_width, int block_height, uint8_t *previous_frame, int *I_frame)
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
This structure describes decoded (raw) audio or video data.
av_log(ac->avr, AV_LOG_TRACE, "%d samples - audio_convert: %s to %s (%s)\, len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt), use_generic ? ac->func_descr_generic :ac->func_descr)
static int copy_region_enc(uint8_t *sptr, uint8_t *dptr, int dx, int dy, int h, int w, int stride, uint8_t *pfptr)
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
void av_free(void *ptr)
Free a memory block which has been allocated with av_malloc(z)() or av_realloc(). ...
static int flashsv_encode_frame(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *pict, int *got_packet)
#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.
static void put_bits(PutBitContext *s, int n, unsigned int value)
Write up to 31 bits into a bitstream.
AVCodec ff_flashsv_encoder
int flags
A combination of AV_PKT_FLAG values.
enum AVPictureType pict_type
Picture type of the frame.
static av_cold int flashsv_encode_end(AVCodecContext *avctx)
int width
picture width / height.
int ff_alloc_packet(AVPacket *avpkt, int size)
Check AVPacket size and/or allocate data.
packed RGB 8:8:8, 24bpp, BGRBGR...
if(ac->has_optimized_func)
Libavcodec external API header.
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
main external API structure.
static enum AVPixelFormat pix_fmts[]
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
int gop_size
the number of pictures in a group of pictures, or 0 for intra_only
#define FF_DISABLE_DEPRECATION_WARNINGS
common internal api header.
static void flush_put_bits(PutBitContext *s)
Pad the end of the output stream with zeros.
attribute_deprecated AVFrame * coded_frame
the picture in the bitstream
static void init_put_bits(PutBitContext *s, uint8_t *buffer, int buffer_size)
Initialize the PutBitContext s.
static av_cold int init(AVCodecParserContext *s)
static av_cold int flashsv_encode_init(AVCodecContext *avctx)
#define FF_ENABLE_DEPRECATION_WARNINGS
int key_frame
1 -> keyframe, 0-> not
int frame_number
Frame counter, set by libavcodec.
AVPixelFormat
Pixel format.
This structure stores compressed data.
void * av_mallocz(size_t size)
Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if ...