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examples: slight cleanup

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spelling/indent/condense a few lines
removal/restriction of extern "C" usage
add const where applicable

Change-Id: Idd49b3498b1d7fc391724b4cde63706022217cb0
This commit is contained in:
James Zern 2011-11-04 15:20:08 -07:00
parent abd030b573
commit 04e84cf1f1
3 changed files with 71 additions and 88 deletions
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24
examples/cwebp.c
View File

@ -54,9 +54,17 @@ DEFINE_GUID(GUID_WICPixelFormat32bppRGBA,
#include "webp/encode.h"
#include "stopwatch.h"
#ifndef WEBP_DLL
extern void* VP8GetCPUInfo; // opaque forward declaration.
#if defined(__cplusplus) || defined(c_plusplus)
extern "C" {
#endif
extern void* VP8GetCPUInfo; // opaque forward declaration.
#if defined(__cplusplus) || defined(c_plusplus)
} // extern "C"
#endif
#endif // WEBP_DLL
//------------------------------------------------------------------------------
static int verbose = 0;
@ -262,7 +270,7 @@ static int ReadJPEG(FILE* in_file, WebPPicture* const pic) {
dinfo.err = jpeg_std_error(&jerr.pub);
jerr.pub.error_exit = my_error_exit;
if (setjmp (jerr.setjmp_buffer)) {
if (setjmp(jerr.setjmp_buffer)) {
Error:
jpeg_destroy_decompress(&dinfo);
goto End;
@ -306,8 +314,8 @@ static int ReadJPEG(FILE* in_file, WebPPicture* const pic) {
row_ptr += stride;
}
jpeg_finish_decompress (&dinfo);
jpeg_destroy_decompress (&dinfo);
jpeg_finish_decompress(&dinfo);
jpeg_destroy_decompress(&dinfo);
// WebP conversion.
pic->width = width;
@ -502,7 +510,7 @@ static void PrintByteCount(const int bytes[4], int total_size,
total += bytes[s];
if (totals) totals[s] += bytes[s];
}
fprintf(stderr,"| %7d (%.1f%%)\n", total, 100.f * total / total_size);
fprintf(stderr, "| %7d (%.1f%%)\n", total, 100.f * total / total_size);
}
static void PrintPercents(const int counts[4], int total) {
@ -510,7 +518,7 @@ static void PrintPercents(const int counts[4], int total) {
for (s = 0; s < 4; ++s) {
fprintf(stderr, "| %2d%%", 100 * counts[s] / total);
}
fprintf(stderr,"| %7d\n", total);
fprintf(stderr, "| %7d\n", total);
}
static void PrintValues(const int values[4]) {
@ -518,14 +526,14 @@ static void PrintValues(const int values[4]) {
for (s = 0; s < 4; ++s) {
fprintf(stderr, "| %7d ", values[s]);
}
fprintf(stderr,"|\n");
fprintf(stderr, "|\n");
}
static void PrintExtraInfo(const WebPPicture* const pic, int short_output) {
const WebPAuxStats* const stats = pic->stats;
if (short_output) {
fprintf(stderr, "%7d %2.2f\n", stats->coded_size, stats->PSNR[3]);
} else{
} else {
const int num_i4 = stats->block_count[0];
const int num_i16 = stats->block_count[1];
const int num_skip = stats->block_count[2];

12
examples/dwebp.c
View File

@ -40,14 +40,18 @@
#include "webp/decode.h"
#include "stopwatch.h"
static int verbose = 0;
#ifndef WEBP_DLL
#if defined(__cplusplus) || defined(c_plusplus)
extern "C" {
#endif
static int verbose = 0;
#ifndef WEBP_DLL
extern void* VP8GetCPUInfo; // opaque forward declaration.
#if defined(__cplusplus) || defined(c_plusplus)
} // extern "C"
#endif
#endif // WEBP_DLL
//------------------------------------------------------------------------------
@ -493,7 +497,3 @@ int main(int argc, const char *argv[]) {
}
//------------------------------------------------------------------------------
#if defined(__cplusplus) || defined(c_plusplus)
} // extern "C"
#endif

123
examples/webpmux.c
View File

@ -8,7 +8,7 @@
// Simple command-line to create a WebP container file and to extract or strip
// relevant data from the container file.
//
// Compile with: gcc -o webpmux webpmux.c -lwebpmux
// Compile with: gcc -o webpmux webpmux.c -lwebpmux -lwebp
//
//
// Authors: Vikas (vikaas.arora@gmail.com),
@ -17,7 +17,6 @@
/* Usage examples:
Create container WebP file:
webpmux -tile tile_1.webp +0+0 \
-tile tile_2.webp +960+0 \
-tile tile_3.webp +0+576 \
@ -32,35 +31,21 @@
-o out_animation_container.webp
webpmux -set icc image_profile.icc in.webp -o out_icc_container.webp
webpmux -set xmp image_metadata.xmp in.webp -o out_xmp_container.webp
Extract relevant data from WebP container file:
webpmux -get tile n in.webp -o out_tile.webp
webpmux -get frame n in.webp -o out_frame.webp
webpmux -get icc in.webp -o image_profile.icc
webpmux -get xmp in.webp -o image_metadata.xmp
Strip data from WebP Container file:
webmux -strip icc in.webp -o out.webp
webmux -strip xmp in.webp -o out.webp
webpmux -strip icc in.webp -o out.webp
webpmux -strip xmp in.webp -o out.webp
Misc:
webpmux -info in.webp
webpmux -help
webpmux -h
webpmux [ -h | -help ]
*/
#include <assert.h>
@ -69,10 +54,6 @@
#include <string.h>
#include "webp/mux.h"
#if defined(__cplusplus) || defined(c_plusplus)
extern "C" {
#endif
//------------------------------------------------------------------------------
// Config object to parse command-line arguments.
@ -121,8 +102,8 @@ typedef struct {
//------------------------------------------------------------------------------
// Helper functions.
static int CountOccurences(const char* arglist[], int list_length,
const char* arg) {
static int CountOccurrences(const char* arglist[], int list_length,
const char* arg) {
int i;
int num_occurences = 0;
@ -135,7 +116,7 @@ static int CountOccurences(const char* arglist[], int list_length,
}
static int IsNotCompatible(int count1, int count2) {
return (count1 > 0) != (count2 > 0);
return (count1 > 0) != (count2 > 0);
}
#define RETURN_IF_ERROR(ERR_MSG) \
@ -151,19 +132,25 @@ static int IsNotCompatible(int count1, int count2) {
}
#define ERROR_GOTO1(ERR_MSG, LABEL) \
fprintf(stderr, ERR_MSG); \
ok = 0; \
goto LABEL;
do { \
fprintf(stderr, ERR_MSG); \
ok = 0; \
goto LABEL; \
} while (0)
#define ERROR_GOTO2(ERR_MSG, FORMAT_STR, LABEL) \
fprintf(stderr, ERR_MSG, FORMAT_STR); \
ok = 0; \
goto LABEL;
do { \
fprintf(stderr, ERR_MSG, FORMAT_STR); \
ok = 0; \
goto LABEL; \
} while (0)
#define ERROR_GOTO3(ERR_MSG, FORMAT_STR1, FORMAT_STR2, LABEL) \
fprintf(stderr, ERR_MSG, FORMAT_STR1, FORMAT_STR2); \
ok = 0; \
goto LABEL;
do { \
fprintf(stderr, ERR_MSG, FORMAT_STR1, FORMAT_STR2); \
ok = 0; \
goto LABEL; \
} while (0)
static WebPMuxError DisplayInfo(const WebPMux* mux) {
int nFrames;
@ -202,7 +189,7 @@ static WebPMuxError DisplayInfo(const WebPMux* mux) {
int i;
uint32_t x_offset, y_offset, duration;
fprintf(stderr, "No : x_offset y_offset duration\n");
fprintf(stderr, "No.: x_offset y_offset duration\n");
for (i = 1; i <= nFrames; i++) {
err = WebPMuxGetFrame(mux, i, &data, &size, &x_offset, &y_offset,
&duration);
@ -220,7 +207,7 @@ static WebPMuxError DisplayInfo(const WebPMux* mux) {
if (nTiles > 0) {
int i;
uint32_t x_offset, y_offset;
fprintf(stderr, "No : x_offset y_offset\n");
fprintf(stderr, "No.: x_offset y_offset\n");
for (i = 1; i <= nTiles; i++) {
err = WebPMuxGetTile(mux, i, &data, &size, &x_offset, &y_offset);
assert(err == WEBP_MUX_OK);
@ -395,7 +382,7 @@ static int ReadImageData(const char* filename, int image_index,
}
} else {
fprintf(stderr, "Failed to extract image data from file %s. Error: %d\n",
filename, err);
filename, err);
ok = 0;
}
WebPMuxDelete(mux);
@ -404,7 +391,7 @@ static int ReadImageData(const char* filename, int image_index,
static int WriteData(const char* filename, void* data, uint32_t size) {
int ok = 0;
FILE* fout = strcmp(filename, "--") ? fopen(filename, "wb") : stdout;
FILE* fout = strcmp(filename, "-") ? fopen(filename, "wb") : stdout;
if (!fout) {
fprintf(stderr, "Error opening output WebP file %s!\n", filename);
return 0;
@ -472,29 +459,26 @@ static int ValidateCommandLine(int argc, const char* argv[],
*num_feature_args = 0;
// Simple checks.
if (CountOccurences(argv, argc, "-get") > 1) {
if (CountOccurrences(argv, argc, "-get") > 1) {
ERROR_GOTO1("ERROR: Multiple '-get' arguments specified.\n", ErrValidate);
}
if (CountOccurences(argv, argc, "-set") > 1) {
if (CountOccurrences(argv, argc, "-set") > 1) {
ERROR_GOTO1("ERROR: Multiple '-set' arguments specified.\n", ErrValidate);
}
if (CountOccurences(argv, argc, "-strip") > 1) {
if (CountOccurrences(argv, argc, "-strip") > 1) {
ERROR_GOTO1("ERROR: Multiple '-strip' arguments specified.\n", ErrValidate);
}
if (CountOccurences(argv, argc, "-info") > 1) {
if (CountOccurrences(argv, argc, "-info") > 1) {
ERROR_GOTO1("ERROR: Multiple '-info' arguments specified.\n", ErrValidate);
}
if (CountOccurences(argv, argc, "-help") > 1) {
ERROR_GOTO1("ERROR: Multiple '-help' arguments specified.\n", ErrValidate);
}
if (CountOccurences(argv, argc, "-o") > 1) {
if (CountOccurrences(argv, argc, "-o") > 1) {
ERROR_GOTO1("ERROR: Multiple output files specified.\n", ErrValidate);
}
// Compound checks.
num_frame_args = CountOccurences(argv, argc, "-frame");
num_tile_args = CountOccurences(argv, argc, "-tile");
num_loop_args = CountOccurences(argv, argc, "-loop");
num_frame_args = CountOccurrences(argv, argc, "-frame");
num_tile_args = CountOccurrences(argv, argc, "-tile");
num_loop_args = CountOccurrences(argv, argc, "-loop");
if (num_loop_args > 1) {
ERROR_GOTO1("ERROR: Multiple loop counts specified.\n", ErrValidate);
@ -552,7 +536,7 @@ static int ParseCommandLine(int argc, const char* argv[],
while (i < argc) {
Feature* const feature = &config->feature_;
FeatureArg* arg = &feature->args_[feature_arg_index];
FeatureArg* const arg = &feature->args_[feature_arg_index];
if (argv[i][0] == '-') { // One of the action types or output.
if (!strcmp(argv[i], "-set")) {
if (ACTION_IS_NIL) {
@ -675,7 +659,7 @@ static int ParseCommandLine(int argc, const char* argv[],
arg->params_ = argv[i + 1];
++feature_arg_index;
i += 2;
} else { // Assume input file.
} else { // Assume input file.
if (config->input_ == NULL) {
config->input_ = argv[i];
} else {
@ -690,7 +674,7 @@ static int ParseCommandLine(int argc, const char* argv[],
return ok;
}
// Additional Checks after config is filled.
// Additional checks after config is filled.
static int ValidateConfig(WebPMuxConfig* config) {
int ok = 1;
Feature* const feature = &config->feature_;
@ -751,12 +735,8 @@ static int InitializeConfig(int argc, const char* argv[],
}
// Parse command-line.
if (!ParseCommandLine(argc, argv, *config)) {
ERROR_GOTO1("Exiting due to command-line parsing error.\n", Err1);
}
// Additional Checks.
if (!ValidateConfig(*config)) {
if (!ParseCommandLine(argc, argv, *config) ||
!ValidateConfig(*config)) {
ERROR_GOTO1("Exiting due to command-line parsing error.\n", Err1);
}
@ -772,7 +752,8 @@ static int InitializeConfig(int argc, const char* argv[],
//------------------------------------------------------------------------------
// Processing.
static int GetFrameTile(WebPMux* mux, WebPMuxConfig* config, int isFrame) {
static int GetFrameTile(const WebPMux* mux,
const WebPMuxConfig* config, int isFrame) {
const uint8_t* data = NULL;
uint32_t size = 0;
uint32_t x_offset = 0;
@ -819,7 +800,7 @@ static int GetFrameTile(WebPMux* mux, WebPMuxConfig* config, int isFrame) {
}
// Read and process config.
static int Process(WebPMuxConfig* config) {
static int Process(const WebPMuxConfig* config) {
WebPMux* mux = NULL;
const uint8_t* data = NULL;
uint32_t size = 0;
@ -831,13 +812,13 @@ static int Process(WebPMuxConfig* config) {
long num;
int index = 0;
int ok = 1;
Feature* const feature = &config->feature_;
const Feature* const feature = &config->feature_;
switch(config->action_type_) {
switch (config->action_type_) {
case ACTION_GET:
ok = ReadFile(config->input_, &mux);
if (!ok) goto Err2;
switch(feature->type_) {
switch (feature->type_) {
case FEATURE_FRM:
ok = GetFrameTile(mux, config, 1);
break;
@ -869,7 +850,7 @@ static int Process(WebPMuxConfig* config) {
break;
case ACTION_SET:
switch(feature->type_) {
switch (feature->type_) {
case FEATURE_FRM:
mux = WebPMuxNew();
if (mux == NULL) {
@ -939,8 +920,7 @@ static int Process(WebPMuxConfig* config) {
case FEATURE_ICCP:
ok = ReadFile(config->input_, &mux);
if (!ok) goto Err2;
ok = ReadData(feature->args_[0].filename_, (void**)&data,
&size);
ok = ReadData(feature->args_[0].filename_, (void**)&data, &size);
if (!ok) goto Err2;
err = WebPMuxSetColorProfile(mux, data, size, 1);
free((void*)data);
@ -952,8 +932,7 @@ static int Process(WebPMuxConfig* config) {
case FEATURE_XMP:
ok = ReadFile(config->input_, &mux);
if (!ok) goto Err2;
ok = ReadData(feature->args_[0].filename_, (void**)&data,
&size);
ok = ReadData(feature->args_[0].filename_, (void**)&data, &size);
if (!ok) goto Err2;
err = WebPMuxSetMetadata(mux, data, size, 1);
free((void*)data);
@ -972,7 +951,7 @@ static int Process(WebPMuxConfig* config) {
case ACTION_STRIP:
ok = ReadFile(config->input_, &mux);
if (!ok) goto Err2;
switch(feature->type_) {
switch (feature->type_) {
case FEATURE_ICCP:
err = WebPMuxDeleteColorProfile(mux);
if (err != WEBP_MUX_OK) {
@ -1027,7 +1006,3 @@ int main(int argc, const char* argv[]) {
}
//------------------------------------------------------------------------------
#if defined(__cplusplus) || defined(c_plusplus)
} // extern "C"
#endif