mirror of https://git.ffmpeg.org/ffmpeg.git
qt-faststart: K&R reformatting; fix comment typos
This commit is contained in:
Diego Biurrun
parent
ae51b1a9ba
commit
cd8d84575b
|
|
@ -30,29 +30,31 @@
|
|||
#include <string.h>
|
||||
|
||||
#ifdef __MINGW32__
|
||||
#define fseeko(x,y,z) fseeko64(x,y,z)
|
||||
#define ftello(x) ftello64(x)
|
||||
#define fseeko(x, y, z) fseeko64(x, y, z)
|
||||
#define ftello(x) ftello64(x)
|
||||
#endif
|
||||
|
||||
#define BE_16(x) ((((uint8_t*)(x))[0] << 8) | ((uint8_t*)(x))[1])
|
||||
#define BE_32(x) ((((uint8_t*)(x))[0] << 24) | \
|
||||
(((uint8_t*)(x))[1] << 16) | \
|
||||
(((uint8_t*)(x))[2] << 8) | \
|
||||
((uint8_t*)(x))[3])
|
||||
#define BE_64(x) (((uint64_t)(((uint8_t*)(x))[0]) << 56) | \
|
||||
((uint64_t)(((uint8_t*)(x))[1]) << 48) | \
|
||||
((uint64_t)(((uint8_t*)(x))[2]) << 40) | \
|
||||
((uint64_t)(((uint8_t*)(x))[3]) << 32) | \
|
||||
((uint64_t)(((uint8_t*)(x))[4]) << 24) | \
|
||||
((uint64_t)(((uint8_t*)(x))[5]) << 16) | \
|
||||
((uint64_t)(((uint8_t*)(x))[6]) << 8) | \
|
||||
((uint64_t)((uint8_t*)(x))[7]))
|
||||
#define BE_16(x) ((((uint8_t*)(x))[0] << 8) | ((uint8_t*)(x))[1])
|
||||
|
||||
#define BE_FOURCC( ch0, ch1, ch2, ch3 ) \
|
||||
( (uint32_t)(unsigned char)(ch3) | \
|
||||
( (uint32_t)(unsigned char)(ch2) << 8 ) | \
|
||||
( (uint32_t)(unsigned char)(ch1) << 16 ) | \
|
||||
( (uint32_t)(unsigned char)(ch0) << 24 ) )
|
||||
#define BE_32(x) ((((uint8_t*)(x))[0] << 24) | \
|
||||
(((uint8_t*)(x))[1] << 16) | \
|
||||
(((uint8_t*)(x))[2] << 8) | \
|
||||
((uint8_t*)(x))[3])
|
||||
|
||||
#define BE_64(x) (((uint64_t)(((uint8_t*)(x))[0]) << 56) | \
|
||||
((uint64_t)(((uint8_t*)(x))[1]) << 48) | \
|
||||
((uint64_t)(((uint8_t*)(x))[2]) << 40) | \
|
||||
((uint64_t)(((uint8_t*)(x))[3]) << 32) | \
|
||||
((uint64_t)(((uint8_t*)(x))[4]) << 24) | \
|
||||
((uint64_t)(((uint8_t*)(x))[5]) << 16) | \
|
||||
((uint64_t)(((uint8_t*)(x))[6]) << 8) | \
|
||||
((uint64_t)( (uint8_t*)(x))[7]))
|
||||
|
||||
#define BE_FOURCC(ch0, ch1, ch2, ch3) \
|
||||
( (uint32_t)(unsigned char)(ch3) | \
|
||||
((uint32_t)(unsigned char)(ch2) << 8) | \
|
||||
((uint32_t)(unsigned char)(ch1) << 16) | \
|
||||
((uint32_t)(unsigned char)(ch0) << 24) )
|
||||
|
||||
#define QT_ATOM BE_FOURCC
|
||||
/* top level atoms */
|
||||
|
|
@ -71,16 +73,16 @@
|
|||
#define STCO_ATOM QT_ATOM('s', 't', 'c', 'o')
|
||||
#define CO64_ATOM QT_ATOM('c', 'o', '6', '4')
|
||||
|
||||
#define ATOM_PREAMBLE_SIZE 8
|
||||
#define COPY_BUFFER_SIZE 1024
|
||||
#define ATOM_PREAMBLE_SIZE 8
|
||||
#define COPY_BUFFER_SIZE 1024
|
||||
|
||||
int main(int argc, char *argv[])
|
||||
{
|
||||
FILE *infile = NULL;
|
||||
FILE *outfile = NULL;
|
||||
unsigned char atom_bytes[ATOM_PREAMBLE_SIZE];
|
||||
uint32_t atom_type = 0;
|
||||
uint64_t atom_size = 0;
|
||||
uint32_t atom_type = 0;
|
||||
uint64_t atom_size = 0;
|
||||
uint64_t atom_offset = 0;
|
||||
uint64_t last_offset;
|
||||
unsigned char *moov_atom = NULL;
|
||||
|
|
@ -95,7 +97,7 @@ int main(int argc, char *argv[])
|
|||
int bytes_to_copy;
|
||||
|
||||
if (argc != 3) {
|
||||
printf ("Usage: qt-faststart <infile.mov> <outfile.mov>\n");
|
||||
printf("Usage: qt-faststart <infile.mov> <outfile.mov>\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
|
@ -116,7 +118,7 @@ int main(int argc, char *argv[])
|
|||
if (fread(atom_bytes, ATOM_PREAMBLE_SIZE, 1, infile) != 1) {
|
||||
break;
|
||||
}
|
||||
atom_size = (uint32_t)BE_32(&atom_bytes[0]);
|
||||
atom_size = (uint32_t) BE_32(&atom_bytes[0]);
|
||||
atom_type = BE_32(&atom_bytes[4]);
|
||||
|
||||
/* keep ftyp atom */
|
||||
|
|
@ -125,8 +127,8 @@ int main(int argc, char *argv[])
|
|||
free(ftyp_atom);
|
||||
ftyp_atom = malloc(ftyp_atom_size);
|
||||
if (!ftyp_atom) {
|
||||
printf ("could not allocate %"PRIu64" byte for ftyp atom\n",
|
||||
atom_size);
|
||||
printf("could not allocate %"PRIu64" bytes for ftyp atom\n",
|
||||
atom_size);
|
||||
goto error_out;
|
||||
}
|
||||
fseeko(infile, -ATOM_PREAMBLE_SIZE, SEEK_CUR);
|
||||
|
|
@ -165,7 +167,7 @@ int main(int argc, char *argv[])
|
|||
(atom_type != PICT_ATOM) &&
|
||||
(atom_type != UUID_ATOM) &&
|
||||
(atom_type != FTYP_ATOM)) {
|
||||
printf ("encountered non-QT top-level atom (is this a Quicktime file?)\n");
|
||||
printf("encountered non-QT top-level atom (is this a QuickTime file?)\n");
|
||||
break;
|
||||
}
|
||||
atom_offset += atom_size;
|
||||
|
|
@ -178,7 +180,7 @@ int main(int argc, char *argv[])
|
|||
}
|
||||
|
||||
if (atom_type != MOOV_ATOM) {
|
||||
printf ("last atom in file was not a moov atom\n");
|
||||
printf("last atom in file was not a moov atom\n");
|
||||
free(ftyp_atom);
|
||||
fclose(infile);
|
||||
return 0;
|
||||
|
|
@ -187,12 +189,11 @@ int main(int argc, char *argv[])
|
|||
/* moov atom was, in fact, the last atom in the chunk; load the whole
|
||||
* moov atom */
|
||||
fseeko(infile, -atom_size, SEEK_END);
|
||||
last_offset = ftello(infile);
|
||||
last_offset = ftello(infile);
|
||||
moov_atom_size = atom_size;
|
||||
moov_atom = malloc(moov_atom_size);
|
||||
moov_atom = malloc(moov_atom_size);
|
||||
if (!moov_atom) {
|
||||
printf ("could not allocate %"PRIu64" byte for moov atom\n",
|
||||
atom_size);
|
||||
printf("could not allocate %"PRIu64" bytes for moov atom\n", atom_size);
|
||||
goto error_out;
|
||||
}
|
||||
if (fread(moov_atom, atom_size, 1, infile) != 1) {
|
||||
|
|
@ -203,7 +204,7 @@ int main(int argc, char *argv[])
|
|||
/* this utility does not support compressed atoms yet, so disqualify
|
||||
* files with compressed QT atoms */
|
||||
if (BE_32(&moov_atom[12]) == CMOV_ATOM) {
|
||||
printf ("this utility does not support compressed moov atoms yet\n");
|
||||
printf("this utility does not support compressed moov atoms yet\n");
|
||||
goto error_out;
|
||||
}
|
||||
|
||||
|
|
@ -215,15 +216,15 @@ int main(int argc, char *argv[])
|
|||
for (i = 4; i < moov_atom_size - 4; i++) {
|
||||
atom_type = BE_32(&moov_atom[i]);
|
||||
if (atom_type == STCO_ATOM) {
|
||||
printf (" patching stco atom...\n");
|
||||
printf(" patching stco atom...\n");
|
||||
atom_size = BE_32(&moov_atom[i - 4]);
|
||||
if (i + atom_size - 4 > moov_atom_size) {
|
||||
printf (" bad atom size\n");
|
||||
printf(" bad atom size\n");
|
||||
goto error_out;
|
||||
}
|
||||
offset_count = BE_32(&moov_atom[i + 8]);
|
||||
for (j = 0; j < offset_count; j++) {
|
||||
current_offset = BE_32(&moov_atom[i + 12 + j * 4]);
|
||||
current_offset = BE_32(&moov_atom[i + 12 + j * 4]);
|
||||
current_offset += moov_atom_size;
|
||||
moov_atom[i + 12 + j * 4 + 0] = (current_offset >> 24) & 0xFF;
|
||||
moov_atom[i + 12 + j * 4 + 1] = (current_offset >> 16) & 0xFF;
|
||||
|
|
@ -232,15 +233,15 @@ int main(int argc, char *argv[])
|
|||
}
|
||||
i += atom_size - 4;
|
||||
} else if (atom_type == CO64_ATOM) {
|
||||
printf (" patching co64 atom...\n");
|
||||
printf(" patching co64 atom...\n");
|
||||
atom_size = BE_32(&moov_atom[i - 4]);
|
||||
if (i + atom_size - 4 > moov_atom_size) {
|
||||
printf (" bad atom size\n");
|
||||
printf(" bad atom size\n");
|
||||
goto error_out;
|
||||
}
|
||||
offset_count = BE_32(&moov_atom[i + 8]);
|
||||
for (j = 0; j < offset_count; j++) {
|
||||
current_offset = BE_64(&moov_atom[i + 12 + j * 8]);
|
||||
current_offset = BE_64(&moov_atom[i + 12 + j * 8]);
|
||||
current_offset += moov_atom_size;
|
||||
moov_atom[i + 12 + j * 8 + 0] = (current_offset >> 56) & 0xFF;
|
||||
moov_atom[i + 12 + j * 8 + 1] = (current_offset >> 48) & 0xFF;
|
||||
|
|
@ -275,7 +276,7 @@ int main(int argc, char *argv[])
|
|||
|
||||
/* dump the same ftyp atom */
|
||||
if (ftyp_atom_size > 0) {
|
||||
printf (" writing ftyp atom...\n");
|
||||
printf(" writing ftyp atom...\n");
|
||||
if (fwrite(ftyp_atom, ftyp_atom_size, 1, outfile) != 1) {
|
||||
perror(argv[2]);
|
||||
goto error_out;
|
||||
|
|
@ -283,14 +284,14 @@ int main(int argc, char *argv[])
|
|||
}
|
||||
|
||||
/* dump the new moov atom */
|
||||
printf (" writing moov atom...\n");
|
||||
printf(" writing moov atom...\n");
|
||||
if (fwrite(moov_atom, moov_atom_size, 1, outfile) != 1) {
|
||||
perror(argv[2]);
|
||||
goto error_out;
|
||||
}
|
||||
|
||||
/* copy the remainder of the infile, from offset 0 -> last_offset - 1 */
|
||||
printf (" copying rest of file...\n");
|
||||
printf(" copying rest of file...\n");
|
||||
while (last_offset) {
|
||||
if (last_offset > COPY_BUFFER_SIZE)
|
||||
bytes_to_copy = COPY_BUFFER_SIZE;
|
||||
|
|
@ -305,7 +306,6 @@ int main(int argc, char *argv[])
|
|||
perror(argv[2]);
|
||||
goto error_out;
|
||||
}
|
||||
|
||||
last_offset -= bytes_to_copy;
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue