Go to the documentation of this file.
61 1, 2, 2, 2, 3, 3, 3, 4,
62 2, 2, 2, 3, 3, 3, 4, 4,
63 2, 2, 3, 3, 3, 4, 4, 4,
64 2, 2, 3, 3, 3, 4, 4, 5,
65 2, 3, 3, 3, 4, 4, 5, 6,
66 3, 3, 3, 4, 4, 5, 6, 7,
67 3, 3, 3, 4, 4, 5, 7, 7,
68 3, 3, 4, 4, 5, 7, 7, 7,
72 1, 5, 6, 7, 8, 9, 9, 11,
73 5, 5, 7, 8, 9, 9, 11, 12,
74 6, 7, 8, 9, 9, 11, 11, 12,
75 7, 7, 8, 9, 9, 11, 12, 13,
76 7, 8, 9, 9, 10, 11, 13, 16,
77 8, 9, 9, 10, 11, 13, 16, 19,
78 8, 9, 9, 11, 12, 15, 18, 23,
79 9, 9, 11, 12, 15, 18, 23, 27
84 #define FIC_HEADER_SIZE 27
85 #define CURSOR_OFFSET 59
93 const unsigned t4 = 5793
U * ((
int)(
t2 +
t0 + 0x800) >> 12);
94 const unsigned t5 = 5793
U * ((
int)(
t3 +
t1 + 0x800) >> 12);
95 const unsigned t6 =
t2 -
t0;
96 const unsigned t7 =
t3 -
t1;
117 fic_idct(ptr++, 8, 13, (1 << 12) + (1 << 17));
118 for (
i = 1;
i < 8;
i++) {
124 for (
i = 0;
i < 8;
i++) {
130 for (j = 0; j < 8; j++) {
131 for (
i = 0;
i < 8;
i++)
132 dst[
i] = av_clip_uint8(ptr[
i]);
157 for (
i = 0;
i < num_coeff;
i++) {
159 if (v < -2048 || v > 2048)
178 int y_off = tctx->
y_off;
185 for (p = 0; p < 3; p++) {
189 for (y = 0; y < (slice_h >> !!p); y += 8) {
190 for (
x = 0;
x < (
ctx->aligned_width >> !!p);
x += 8) {
224 for (
i = 0;
i < 1024;
i++) {
225 planes[0][
i] = (( 25 * ptr[0] + 129 * ptr[1] + 66 * ptr[2]) / 255) + 16;
226 planes[1][
i] = ((-38 * ptr[0] + 112 * ptr[1] + -74 * ptr[2]) / 255) + 128;
227 planes[2][
i] = ((-18 * ptr[0] + 112 * ptr[1] + -94 * ptr[2]) / 255) + 128;
234 for (
i = 0;
i < 32;
i += 2)
235 for (j = 0; j < 32; j += 2)
236 for (p = 0; p < 3; p++)
238 planes[p + 1][32 *
i + j + 1] +
239 planes[p + 1][32 * (
i + 1) + j ] +
240 planes[p + 1][32 * (
i + 1) + j + 1]) / 4;
243 for (
i = 0;
i < 3;
i++)
244 dstptr[
i] =
ctx->final_frame->data[
i] +
245 (
ctx->final_frame->linesize[
i] * (cur_y >> !!
i)) +
246 (cur_x >> !!
i) + !!
i;
251 int csize = lsize / 2;
262 dstptr[0] +=
ctx->final_frame->linesize[0] * 2;
263 dstptr[1] +=
ctx->final_frame->linesize[1];
264 dstptr[2] +=
ctx->final_frame->linesize[2];
278 int skip_cursor =
ctx->skip_cursor;
296 if (!
ctx->final_frame) {
316 "Packet is too small to contain cursor (%d vs %d bytes).\n",
324 if (!skip_cursor && tsize < 32) {
326 "Cursor data too small. Skipping cursor.\n");
333 if (!skip_cursor && (cur_x > avctx->
width || cur_y > avctx->
height)) {
335 "Invalid cursor position: (%d,%d). Skipping cursor.\n",
342 "Invalid cursor size. Skipping cursor.\n");
351 ctx->slice_h = 16 * (
ctx->aligned_height >> 4) / nslices;
352 if (
ctx->slice_h % 16)
359 if (msize <= ctx->aligned_width/8 * (
ctx->aligned_height/8) / 8) {
366 nslices *
sizeof(
ctx->slice_data[0]));
367 if (!
ctx->slice_data_size) {
371 memset(
ctx->slice_data, 0, nslices *
sizeof(
ctx->slice_data[0]));
373 for (slice = 0; slice < nslices; slice++) {
376 int y_off =
ctx->slice_h * slice;
377 int slice_h =
ctx->slice_h;
383 if (slice == nslices - 1) {
388 if (slice_size < slice_off)
392 if (slice_size < slice_off || slice_size > msize)
395 slice_size -= slice_off;
397 ctx->slice_data[slice].src = sdata + slice_off;
398 ctx->slice_data[slice].src_size = slice_size;
399 ctx->slice_data[slice].slice_h = slice_h;
400 ctx->slice_data[slice].y_off = y_off;
404 NULL, nslices,
sizeof(
ctx->slice_data[0]))) < 0)
407 ctx->frame->key_frame = 1;
409 for (slice = 0; slice < nslices; slice++) {
410 if (
ctx->slice_data[slice].p_frame) {
411 ctx->frame->key_frame = 0;
418 if (!
ctx->final_frame) {
#define AV_LOG_WARNING
Something somehow does not look correct.
static av_cold int init(AVCodecContext *avctx)
static int get_bits_left(GetBitContext *gb)
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 they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later. That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another. Frame references ownership and permissions
#define AV_OPT_FLAG_VIDEO_PARAM
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
static const AVClass fic_decoder_class
This structure describes decoded (raw) audio or video data.
trying all byte sequences megabyte in length and selecting the best looking sequence will yield cases to try But a word about which is also called distortion Distortion can be quantified by almost any quality measurement one chooses the sum of squared differences is used but more complex methods that consider psychovisual effects can be used as well It makes no difference in this discussion First step
static int fic_decode_slice(AVCodecContext *avctx, void *tdata)
static unsigned int get_bits(GetBitContext *s, int n)
Read 1-25 bits.
static av_cold int fic_decode_init(AVCodecContext *avctx)
enum AVPictureType cur_frame_type
FFmpeg Automated Testing Environment ************************************Introduction Using FATE from your FFmpeg source directory Submitting the results to the FFmpeg result aggregation server Uploading new samples to the fate suite FATE makefile targets and variables Makefile targets Makefile variables Examples Introduction **************FATE is an extended regression suite on the client side and a means for results aggregation and presentation on the server side The first part of this document explains how you can use FATE from your FFmpeg source directory to test your ffmpeg binary The second part describes how you can run FATE to submit the results to FFmpeg’s FATE server In any way you can have a look at the publicly viewable FATE results by visiting this as it can be seen if some test on some platform broke with their recent contribution This usually happens on the platforms the developers could not test on The second part of this document describes how you can run FATE to submit your results to FFmpeg’s FATE server If you want to submit your results be sure to check that your combination of OS and compiler is not already listed on the above mentioned website In the third part you can find a comprehensive listing of FATE makefile targets and variables Using FATE from your FFmpeg source directory **********************************************If you want to run FATE on your machine you need to have the samples in place You can get the samples via the build target fate rsync Use this command from the top level source this will cause FATE to fail NOTE To use a custom wrapper to run the pass ‘ target exec’ to ‘configure’ or set the TARGET_EXEC Make variable Submitting the results to the FFmpeg result aggregation server ****************************************************************To submit your results to the server you should run fate through the shell script ‘tests fate sh’ from the FFmpeg sources This script needs to be invoked with a configuration file as its first argument tests fate sh path to fate_config A configuration file template with comments describing the individual configuration variables can be found at ‘doc fate_config sh template’ Create a configuration that suits your based on the configuration template The ‘slot’ configuration variable can be any string that is not yet but it is suggested that you name it adhering to the following pattern ‘ARCH OS COMPILER COMPILER VERSION’ The configuration file itself will be sourced in a shell therefore all shell features may be used This enables you to setup the environment as you need it for your build For your first test runs the ‘fate_recv’ variable should be empty or commented out This will run everything as normal except that it will omit the submission of the results to the server The following files should be present in $workdir as specified in the configuration it may help to try out the ‘ssh’ command with one or more ‘ v’ options You should get detailed output concerning your SSH configuration and the authentication process The only thing left is to automate the execution of the fate sh script and the synchronisation of the samples directory Uploading new samples to the fate suite *****************************************If you need a sample uploaded send a mail to samples request This is for developers who have an account on the fate suite server If you upload new please make sure they are as small as space on each network bandwidth and so on benefit from smaller test cases Also keep in mind older checkouts use existing sample that means in practice generally do not remove or overwrite files as it likely would break older checkouts or releases Also all needed samples for a commit should be ideally before the push If you need an account for frequently uploading samples or you wish to help others by doing that send a mail to ffmpeg devel rsync vauL Duo x
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
static int init_get_bits8(GetBitContext *s, const uint8_t *buffer, int byte_size)
Initialize GetBitContext.
static av_cold int fic_decode_close(AVCodecContext *avctx)
static void decode(AVCodecContext *dec_ctx, AVPacket *pkt, AVFrame *frame, FILE *outfile)
static const AVOption options[]
static void fic_idct_put(uint8_t *dst, int stride, int16_t *block)
int bits_per_raw_sample
Bits per sample/pixel of internal libavcodec pixel/sample format.
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
static const uint8_t fic_header[7]
AVFrame * av_frame_clone(const AVFrame *src)
Create a new frame that references the same data as src.
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
static int get_se_golomb(GetBitContext *gb)
read signed exp golomb code.
static const uint8_t fic_qmat_hq[64]
#define LIBAVUTIL_VERSION_INT
Describe the class of an AVClass context structure.
const char * av_default_item_name(void *ptr)
Return the context name.
@ AV_PICTURE_TYPE_I
Intra.
static unsigned int get_bits1(GetBitContext *s)
FICThreadContext * slice_data
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
int av_frame_ref(AVFrame *dst, const AVFrame *src)
Set up a new reference to the data described by the source frame.
#define AV_CODEC_CAP_SLICE_THREADS
Codec supports slice-based (or partition-based) multithreading.
static const struct @315 planes[]
#define DECLARE_ALIGNED(n, t, v)
static void fic_draw_cursor(AVCodecContext *avctx, int cur_x, int cur_y)
#define i(width, name, range_min, range_max)
#define AV_OPT_FLAG_DECODING_PARAM
a generic parameter which can be set by the user for demuxing or decoding
static av_always_inline void fic_idct(int16_t *blk, int step, int shift, int rnd)
const char * name
Name of the codec implementation.
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
static const uint8_t fic_qmat_lq[64]
const uint8_t ff_zigzag_direct[64]
int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
Identical in function to ff_get_buffer(), except it reuses the existing buffer if available.
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
static av_always_inline void fic_alpha_blend(uint8_t *dst, uint8_t *src, int size, uint8_t *alpha)
main external API structure.
int(* execute)(struct AVCodecContext *c, int(*func)(struct AVCodecContext *c2, void *arg), void *arg2, int *ret, int count, int size)
The codec may call this to execute several independent things.
static int fic_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
static int shift(int a, int b)
@ AV_PICTURE_TYPE_P
Predicted.
static const int16_t alpha[]
This structure stores compressed data.
static int fic_decode_block(FICContext *ctx, GetBitContext *gb, uint8_t *dst, int stride, int16_t *block, int *is_p)
void av_fast_malloc(void *ptr, unsigned int *size, size_t min_size)
Allocate a buffer, reusing the given one if large enough.
int width
picture width / height.
The exact code depends on how similar the blocks are and how related they are to the block
#define AVERROR_INVALIDDATA
Invalid data found when processing input.