Go to the documentation of this file.
44 if (*
x +
run >=
s->width) {
45 int n =
s->width - *
x;
61 int *
x,
int *y,
int *plane,
int bits_per_plane)
64 int shift = *plane * bits_per_plane;
65 unsigned mask = ((1
U << bits_per_plane) - 1) <<
shift;
69 int pixels_per_value = 8/bits_per_plane;
75 for (j = 8-bits_per_plane; j >= 0; j -= bits_per_plane) {
78 while (xl ==
s->width) {
84 if (planel >=
s->nb_planes)
86 value <<= bits_per_plane;
87 mask <<= bits_per_plane;
90 if (
s->nb_planes == 1 &&
91 run*pixels_per_value >=
s->width &&
92 pixels_per_value < s->
width &&
93 s->width % pixels_per_value == 0
95 for (; xl < pixels_per_value; xl ++) {
96 j = (j < bits_per_plane ? 8 : j) - bits_per_plane;
100 run -=
s->width / pixels_per_value;
114 [0] = { 0, 3, 5, 7 },
115 [1] = { 0, 2, 4, 6 },
116 [2] = { 0, 3, 4, 7 },
117 [3] = { 0, 11, 13, 15 },
118 [4] = { 0, 10, 12, 14 },
119 [5] = { 0, 11, 12, 15 },
123 void *
data,
int *got_frame,
129 int bits_per_plane, bpp, etype, esize, npal, pos_after_pal;
137 if (bytestream2_get_le16u(&
s->g) != 0x1234)
140 s->width = bytestream2_get_le16u(&
s->g);
141 s->height = bytestream2_get_le16u(&
s->g);
143 tmp = bytestream2_get_byteu(&
s->g);
144 bits_per_plane =
tmp & 0xF;
145 s->nb_planes = (
tmp >> 4) + 1;
146 bpp = bits_per_plane *
s->nb_planes;
147 if (bits_per_plane > 8 || bpp < 1 || bpp > 32) {
152 if (bytestream2_peek_byte(&
s->g) == 0xFF || bpp == 1 || bpp == 4 || bpp == 8) {
154 etype = bytestream2_get_le16(&
s->g);
155 esize = bytestream2_get_le16(&
s->g);
167 if (
s->width != avctx->
width ||
s->height != avctx->
height) {
175 memset(
frame->data[0], 0,
s->height *
frame->linesize[0]);
177 frame->palette_has_changed = 1;
180 palette = (uint32_t*)
frame->data[1];
181 if (etype == 1 && esize > 1 && bytestream2_peek_byte(&
s->g) < 6) {
182 int idx = bytestream2_get_byte(&
s->g);
184 for (
i = 0;
i < npal;
i++)
186 }
else if (etype == 2) {
187 npal =
FFMIN(esize, 16);
188 for (
i = 0;
i < npal;
i++) {
189 int pal_idx = bytestream2_get_byte(&
s->g);
192 }
else if (etype == 3) {
193 npal =
FFMIN(esize, 16);
194 for (
i = 0;
i < npal;
i++) {
195 int pal_idx = bytestream2_get_byte(&
s->g);
198 }
else if (etype == 4 || etype == 5) {
199 npal =
FFMIN(esize / 3, 256);
200 for (
i = 0;
i < npal;
i++) {
201 palette[
i] = bytestream2_get_be24(&
s->g) << 2;
202 palette[
i] |= 0xFFU << 24 | palette[i] >> 6 & 0x30303;
207 palette[0] = 0xFF000000;
208 palette[1] = 0xFFFFFFFF;
209 }
else if (bpp == 2) {
211 for (
i = 0;
i < npal;
i++)
225 if (bytestream2_get_le16(&
s->g)) {
229 int stop_size, marker,
t1,
t2;
232 t2 = bytestream2_get_le16(&
s->g);
236 marker = bytestream2_get_byte(&
s->g);
238 while (plane < s->nb_planes &&
241 val = bytestream2_get_byte(&
s->g);
243 run = bytestream2_get_byte(&
s->g);
245 run = bytestream2_get_le16(&
s->g);
246 val = bytestream2_get_byte(&
s->g);
251 if (bits_per_plane == 8) {
261 if (
s->nb_planes - plane > 1)
264 if (plane < s->nb_planes && x < avctx->
width) {
266 if (bits_per_plane == 8)
static void picmemset(PicContext *s, AVFrame *frame, unsigned value, int run, int *x, int *y, int *plane, int bits_per_plane)
static const uint8_t cga_mode45_index[6][4]
const uint32_t ff_cga_palette[16]
static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
static av_cold int end(AVCodecContext *avctx)
static av_always_inline int bytestream2_seek(GetByteContext *g, int offset, int whence)
This structure describes decoded (raw) audio or video data.
static av_always_inline void bytestream2_skip(GetByteContext *g, unsigned int size)
AVCodec ff_pictor_decoder
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
static double val(void *priv, double ch)
static const uint16_t mask[17]
void av_memcpy_backptr(uint8_t *dst, int back, int cnt)
Overlapping memcpy() implementation.
static void decode(AVCodecContext *dec_ctx, AVPacket *pkt, AVFrame *frame, FILE *outfile)
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
const uint32_t ff_ega_palette[64]
@ AV_PICTURE_TYPE_I
Intra.
static void picmemset_8bpp(PicContext *s, AVFrame *frame, int value, int run, int *x, int *y)
static av_always_inline int bytestream2_get_bytes_left(GetByteContext *g)
static av_always_inline int bytestream2_tell(GetByteContext *g)
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
Get a buffer for a frame.
#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.
#define i(width, name, range_min, range_max)
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf default value
const char * name
Name of the codec implementation.
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
@ AV_PIX_FMT_PAL8
8 bits with AV_PIX_FMT_RGB32 palette
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a frame
main external API structure.
static int shift(int a, int b)
int ff_set_dimensions(AVCodecContext *s, int width, int height)
Check that the provided frame dimensions are valid and set them on the codec context.
#define avpriv_request_sample(...)
This structure stores compressed data.
int width
picture width / height.
static av_always_inline void bytestream2_init(GetByteContext *g, const uint8_t *buf, int buf_size)
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
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...