31 #define MAX_RLE_BULK 127 33 #define MAX_RLE_REPEAT 128 35 #define MAX_RLE_SKIP 254 132 unsigned int bulkcount;
135 unsigned int skipcount;
138 unsigned int repeatcount;
143 int total_repeat_cost;
148 uint8_t *this_line = p->
data[0] + line*p-> linesize[0] +
156 for (i = width - 1; i >= 0; i--) {
181 if (repeatcount > 1 && (skipcount == 0 || total_repeat_cost < total_skip_cost)) {
186 else if (skipcount > 0) {
198 total_bulk_cost = INT_MAX;
200 for (j = 1; j <= limit; j++) {
201 if (s->
length_table[i + j] + temp_cost < total_bulk_cost) {
226 bytestream_put_byte(buf, s->
skip_table[0] + 1);
229 else bytestream_put_byte(buf, 1);
234 bytestream_put_byte(buf, rlecode);
237 bytestream_put_byte(buf, s->
skip_table[i] + 1);
240 else if (rlecode > 0) {
251 bytestream_put_byte(buf, -1);
264 for (start_line = 0; start_line < s->
avctx->
height; start_line++)
270 for (end_line=s->
avctx->
height; end_line > start_line; end_line--)
277 bytestream_put_be32(&buf, 0);
280 bytestream_put_be16(&buf, 0);
282 bytestream_put_be16(&buf, 8);
283 bytestream_put_be16(&buf, start_line);
284 bytestream_put_be16(&buf, 0);
285 bytestream_put_be16(&buf, end_line - start_line);
286 bytestream_put_be16(&buf, 0);
288 for (i = start_line; i < end_line; i++)
291 bytestream_put_byte(&buf, 0);
292 AV_WB32(orig_buf, buf - orig_buf);
293 return buf - orig_buf;
297 const AVFrame *pict,
int *got_packet)
300 #if FF_API_CODED_FRAME 313 #if FF_API_CODED_FRAME 319 #if FF_API_CODED_FRAME 335 #if FF_API_CODED_FRAME int * length_table
This array will contain the length of the best rle encoding of the line starting at ith pixel...
This structure describes decoded (raw) audio or video data.
packed RGB 8:8:8, 24bpp, RGBRGB...
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)
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
static int encode_frame(QtrleEncContext *s, const AVFrame *p, uint8_t *buf)
Encode frame including header.
static av_cold int qtrle_encode_end(AVCodecContext *avctx)
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
int key_frame
Encoded frame is a key frame.
int av_frame_ref(AVFrame *dst, const AVFrame *src)
Set up a new reference to the data described by the source frame.
uint8_t * skip_table
Will contain at ith position the number of consecutive pixels equal to the previous frame starting fr...
int bits_per_coded_sample
bits per sample/pixel from the demuxer (needed for huffyuv).
#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(). ...
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. ...
#define MAX_RLE_BULK
Maximum RLE code for bulk copy.
static int qtrle_encode_frame(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *pict, int *got_packet)
const char * name
Name of the codec implementation.
#define MAX_RLE_SKIP
Maximum RLE code for skip.
packed ARGB 8:8:8:8, 32bpp, ARGBARGB...
int flags
A combination of AV_PKT_FLAG values.
static av_cold int qtrle_encode_init(AVCodecContext *avctx)
int av_image_check_size(unsigned int w, unsigned int h, int log_offset, void *log_ctx)
Check if the given dimension of an image is valid, meaning that all bytes of the image can be address...
enum AVPictureType pict_type
Picture type of the frame.
int width
picture width / height.
#define MAX_RLE_REPEAT
Maximum RLE code for repeat.
int ff_alloc_packet(AVPacket *avpkt, int size)
Check AVPacket size and/or allocate data.
unsigned int max_buf_size
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[]
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
packed RGB 5:5:5, 16bpp, (msb)1A 5R 5G 5B(lsb), big-endian, most significant bit to 0 ...
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
static void qtrle_encode_line(QtrleEncContext *s, const AVFrame *p, int line, uint8_t **buf)
Compute the best RLE sequence for a line.
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.
attribute_deprecated AVFrame * coded_frame
the picture in the bitstream
static av_cold int init(AVCodecParserContext *s)
static av_always_inline void bytestream_put_buffer(uint8_t **b, const uint8_t *src, unsigned int size)
signed char * rlecode_table
This array will contain at ith position the value of the best RLE code if the line started at pixel i...
#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 ...