Go to the documentation of this file.
84 version = bytestream2_get_be16(&
s->gb);
92 s->channel_count = bytestream2_get_be16(&
s->gb);
93 if ((
s->channel_count < 1) || (
s->channel_count > 56)) {
98 s->height = bytestream2_get_be32(&
s->gb);
102 "Height > 30000 is experimental, add "
103 "'-strict %d' if you want to try to decode the picture.\n",
108 s->width = bytestream2_get_be32(&
s->gb);
111 "Width > 30000 is experimental, add "
112 "'-strict %d' if you want to try to decode the picture.\n",
120 s->channel_depth = bytestream2_get_be16(&
s->gb);
122 color_mode = bytestream2_get_be16(&
s->gb);
123 switch (color_mode) {
154 len_section = bytestream2_get_be32(&
s->gb);
155 if (len_section < 0) {
168 for (
i = 0;
i <
FFMIN(256, len_section / 3);
i++)
169 s->palette[
i * 4 + (
HAVE_BIGENDIAN ? j : 2 - j)] = bytestream2_get_byteu(&
s->gb);
170 len_section -=
i * 3;
175 len_section = bytestream2_get_be32(&
s->gb);
176 if (len_section < 0) {
188 len_section = bytestream2_get_be32(&
s->gb);
189 if (len_section < 0) {
206 s->compression = bytestream2_get_be16(&
s->gb);
207 switch (
s->compression) {
226 unsigned int scanline_count;
227 unsigned int sl, count;
228 unsigned long target_index = 0;
231 unsigned int repeat_count;
234 scanline_count =
s->height *
s->channel_count;
244 for (sl = 0; sl < scanline_count; sl++) {
247 while (count < s->line_size) {
248 rle_char = bytestream2_get_byte(&
s->gb);
251 repeat_count = rle_char * -1;
258 if (target_index + repeat_count >=
s->uncompressed_size) {
263 v = bytestream2_get_byte(&
s->gb);
264 for (p = 0; p <= repeat_count; p++) {
265 s->tmp[target_index++] = v;
267 count += repeat_count + 1;
274 if (target_index + rle_char >=
s->uncompressed_size) {
279 for (p = 0; p <= rle_char; p++) {
280 v = bytestream2_get_byte(&
s->gb);
281 s->tmp[target_index++] = v;
283 count += rle_char + 1;
297 int index_out,
c, y,
x, p;
298 uint8_t eq_channel[4] = {2,0,1,3};
305 s->channel_count = 0;
306 s->channel_depth = 0;
315 s->pixel_size =
s->channel_depth >> 3;
316 s->line_size =
s->width *
s->pixel_size;
318 switch (
s->color_mode) {
320 if (
s->channel_depth != 1 ||
s->channel_count != 1) {
322 "Invalid bitmap file (channel_depth %d, channel_count %d)\n",
323 s->channel_depth,
s->channel_count);
326 s->line_size =
s->width + 7 >> 3;
330 if (
s->channel_depth != 8 ||
s->channel_count != 1) {
332 "Invalid indexed file (channel_depth %d, channel_count %d)\n",
333 s->channel_depth,
s->channel_count);
339 if (
s->channel_count == 4) {
340 if (
s->channel_depth == 8) {
342 }
else if (
s->channel_depth == 16) {
348 }
else if (
s->channel_count == 5) {
349 if (
s->channel_depth == 8) {
351 }
else if (
s->channel_depth == 16) {
363 if (
s->channel_count == 3) {
364 if (
s->channel_depth == 8) {
366 }
else if (
s->channel_depth == 16) {
372 }
else if (
s->channel_count == 4) {
373 if (
s->channel_depth == 8) {
375 }
else if (
s->channel_depth == 16) {
389 if (
s->channel_count == 1) {
390 if (
s->channel_depth == 8) {
392 }
else if (
s->channel_depth == 16) {
394 }
else if (
s->channel_depth == 32) {
400 }
else if (
s->channel_count == 2) {
401 if (
s->channel_depth == 8) {
403 }
else if (
s->channel_depth == 16) {
419 s->uncompressed_size =
s->line_size *
s->height *
s->channel_count;
443 ptr_data =
s->gb.buffer;
448 ptr = picture->
data[0];
449 for (
c = 0;
c <
s->channel_count;
c++) {
450 for (y = 0; y <
s->height; y++) {
451 for (
x = 0;
x <
s->width;
x++) {
452 index_out = y * picture->
linesize[0] +
x *
s->channel_count *
s->pixel_size +
c *
s->pixel_size;
453 for (p = 0; p <
s->pixel_size; p++) {
454 ptr[index_out + p] = *ptr_data;
463 src[1] =
src[0] +
s->line_size *
s->height;
464 src[2] =
src[1] +
s->line_size *
s->height;
465 src[3] =
src[2] +
s->line_size *
s->height;
466 src[4] =
src[3] +
s->line_size *
s->height;
467 if (
s->channel_depth == 8) {
468 for (y = 0; y <
s->height; y++) {
469 for (
x = 0;
x <
s->width;
x++) {
471 int r =
src[0][
x] * k;
472 int g =
src[1][
x] * k;
473 int b =
src[2][
x] * k;
474 dst[0][
x] =
g * 257 >> 16;
475 dst[1][
x] =
b * 257 >> 16;
476 dst[2][
x] =
r * 257 >> 16;
481 src[0] +=
s->line_size;
482 src[1] +=
s->line_size;
483 src[2] +=
s->line_size;
484 src[3] +=
s->line_size;
487 for (y = 0; y <
s->height; y++) {
488 memcpy(dst[3],
src[4],
s->line_size);
489 src[4] +=
s->line_size;
494 for (y = 0; y <
s->height; y++) {
495 for (
x = 0;
x <
s->width;
x++) {
500 AV_WB16(&dst[0][
x * 2],
g * 65537 >> 32);
501 AV_WB16(&dst[1][
x * 2],
b * 65537 >> 32);
502 AV_WB16(&dst[2][
x * 2],
r * 65537 >> 32);
507 src[0] +=
s->line_size;
508 src[1] +=
s->line_size;
509 src[2] +=
s->line_size;
510 src[3] +=
s->line_size;
513 for (y = 0; y <
s->height; y++) {
514 memcpy(dst[3],
src[4],
s->line_size);
515 src[4] +=
s->line_size;
521 if (
s->channel_count == 1)
524 for (
c = 0;
c <
s->channel_count;
c++) {
525 plane_number = eq_channel[
c];
526 ptr = picture->
data[plane_number];
527 for (y = 0; y <
s->height; y++) {
528 memcpy(ptr, ptr_data,
s->line_size);
529 ptr += picture->
linesize[plane_number];
530 ptr_data +=
s->line_size;
#define AV_LOG_WARNING
Something somehow does not look correct.
#define AVERROR_EXPERIMENTAL
Requested feature is flagged experimental. Set strict_std_compliance if you really want to use it.
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
@ AV_PIX_FMT_YA8
8 bits gray, 8 bits alpha
#define FF_COMPLIANCE_EXPERIMENTAL
Allow nonstandardized experimental things.
@ AV_PIX_FMT_GBRP16BE
planar GBR 4:4:4 48bpp, big-endian
#define MKTAG(a, b, c, d)
This structure describes decoded (raw) audio or video data.
@ AV_PIX_FMT_MONOWHITE
Y , 1bpp, 0 is white, 1 is black, in each byte pixels are ordered from the msb to the lsb.
static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
@ AV_PIX_FMT_GRAY16BE
Y , 16bpp, big-endian.
static av_always_inline void bytestream2_skip(GetByteContext *g, unsigned int size)
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
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 const char signature[]
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
static void decode(AVCodecContext *dec_ctx, AVPacket *pkt, AVFrame *frame, FILE *outfile)
@ AV_PIX_FMT_GBRAP16BE
planar GBRA 4:4:4:4 64bpp, big-endian
#define AV_CODEC_CAP_FRAME_THREADS
Codec supports frame-level multithreading.
Describe the class of an AVClass context structure.
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
@ AV_PICTURE_TYPE_I
Intra.
static int decode_header(PSDContext *s)
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Undefined Behavior In the C some operations are like signed integer dereferencing freed accessing outside allocated Undefined Behavior must not occur in a C it is not safe even if the output of undefined operations is unused The unsafety may seem nit picking but Optimizing compilers have in fact optimized code on the assumption that no undefined Behavior occurs Optimizing code based on wrong assumptions can and has in some cases lead to effects beyond the output of computations The signed integer overflow problem in speed critical code Code which is highly optimized and works with signed integers sometimes has the problem that often the output of the computation does not c
static av_always_inline int bytestream2_get_bytes_left(GetByteContext *g)
enum AVPictureType pict_type
Picture type of the frame.
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.
enum PsdCompr compression
@ AV_PIX_FMT_YA16BE
16 bits gray, 16 bits alpha (big-endian)
void avpriv_report_missing_feature(void *avc, const char *msg,...) av_printf_format(2
Log a generic warning message about a missing feature.
#define i(width, name, range_min, range_max)
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
uint8_t palette[AVPALETTE_SIZE]
@ AV_PIX_FMT_GRAYF32BE
IEEE-754 single precision Y, 32bpp, big-endian.
main external API structure.
int palette_has_changed
Tell user application that palette has changed from previous frame.
enum PsdColorMode color_mode
static int decode_rle(PSDContext *s)
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
uint64_t uncompressed_size
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.
static av_always_inline void bytestream2_init(GetByteContext *g, const uint8_t *buf, int buf_size)
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
#define AVERROR_INVALIDDATA
Invalid data found when processing input.