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authorMichael Niedermayer <michaelni@gmx.at>2013-07-12 12:36:04 +0200
committerMichael Niedermayer <michaelni@gmx.at>2013-07-12 12:36:04 +0200
commit54bbb9056801b778126a4bf5036d9d3638da1802 (patch)
tree6cffb68457486351ced1dc2f59f0db246aa8a5dc /libavcodec/pcx.c
parentc6953589f9c48a7420ea4284f404fb656ddf869f (diff)
parent170fb593c617cd797d00cf05bfb8d8c21d612893 (diff)
Merge commit '170fb593c617cd797d00cf05bfb8d8c21d612893'
* commit '170fb593c617cd797d00cf05bfb8d8c21d612893': pcx: K&R formatting cosmetics Conflicts: libavcodec/pcx.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/pcx.c')
-rw-r--r--libavcodec/pcx.c107
1 files changed, 53 insertions, 54 deletions
diff --git a/libavcodec/pcx.c b/libavcodec/pcx.c
index ba9233257a..42d42b2397 100644
--- a/libavcodec/pcx.c
+++ b/libavcodec/pcx.c
@@ -35,14 +35,14 @@ static void pcx_rle_decode(GetByteContext *gb, uint8_t *dst,
unsigned char run, value;
if (compressed) {
- while (i<bytes_per_scanline) {
- run = 1;
+ while (i < bytes_per_scanline) {
+ run = 1;
value = bytestream2_get_byte(gb);
if (value >= 0xc0) {
- run = value & 0x3f;
+ run = value & 0x3f;
value = bytestream2_get_byte(gb);
}
- while (i<bytes_per_scanline && run--)
+ while (i < bytes_per_scanline && run--)
dst[i++] = value;
}
} else {
@@ -55,17 +55,19 @@ static void pcx_palette(GetByteContext *gb, uint32_t *dst, int pallen)
int i;
pallen = FFMIN(pallen, bytestream2_get_bytes_left(gb) / 3);
- for (i=0; i<pallen; i++)
+ for (i = 0; i < pallen; i++)
*dst++ = 0xFF000000 | bytestream2_get_be24u(gb);
if (pallen < 256)
memset(dst, 0, (256 - pallen) * sizeof(*dst));
}
static int pcx_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
- AVPacket *avpkt) {
+ AVPacket *avpkt)
+{
GetByteContext gb;
- AVFrame * const p = data;
- int compressed, xmin, ymin, xmax, ymax, ret;
+ AVFrame * const p = data;
+ int compressed, xmin, ymin, xmax, ymax;
+ int ret;
unsigned int w, h, bits_per_pixel, bytes_per_line, nplanes, stride, y, x,
bytes_per_scanline;
uint8_t *ptr, *scanline;
@@ -80,12 +82,12 @@ static int pcx_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
return AVERROR_INVALIDDATA;
}
- compressed = bytestream2_get_byteu(&gb);
- bits_per_pixel = bytestream2_get_byteu(&gb);
- xmin = bytestream2_get_le16u(&gb);
- ymin = bytestream2_get_le16u(&gb);
- xmax = bytestream2_get_le16u(&gb);
- ymax = bytestream2_get_le16u(&gb);
+ compressed = bytestream2_get_byteu(&gb);
+ bits_per_pixel = bytestream2_get_byteu(&gb);
+ xmin = bytestream2_get_le16u(&gb);
+ ymin = bytestream2_get_le16u(&gb);
+ xmax = bytestream2_get_le16u(&gb);
+ ymax = bytestream2_get_le16u(&gb);
avctx->sample_aspect_ratio.num = bytestream2_get_le16u(&gb);
avctx->sample_aspect_ratio.den = bytestream2_get_le16u(&gb);
@@ -107,22 +109,22 @@ static int pcx_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
return AVERROR_INVALIDDATA;
}
- switch ((nplanes<<8) + bits_per_pixel) {
- case 0x0308:
- avctx->pix_fmt = AV_PIX_FMT_RGB24;
- break;
- case 0x0108:
- case 0x0104:
- case 0x0102:
- case 0x0101:
- case 0x0401:
- case 0x0301:
- case 0x0201:
- avctx->pix_fmt = AV_PIX_FMT_PAL8;
- break;
- default:
- av_log(avctx, AV_LOG_ERROR, "invalid PCX file\n");
- return AVERROR_INVALIDDATA;
+ switch ((nplanes << 8) + bits_per_pixel) {
+ case 0x0308:
+ avctx->pix_fmt = AV_PIX_FMT_RGB24;
+ break;
+ case 0x0108:
+ case 0x0104:
+ case 0x0102:
+ case 0x0101:
+ case 0x0401:
+ case 0x0301:
+ case 0x0201:
+ avctx->pix_fmt = AV_PIX_FMT_PAL8;
+ break;
+ default:
+ av_log(avctx, AV_LOG_ERROR, "invalid PCX file\n");
+ return AVERROR_INVALIDDATA;
}
bytestream2_skipu(&gb, 60);
@@ -144,22 +146,21 @@ static int pcx_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
return AVERROR(ENOMEM);
if (nplanes == 3 && bits_per_pixel == 8) {
- for (y=0; y<h; y++) {
+ for (y = 0; y < h; y++) {
pcx_rle_decode(&gb, scanline, bytes_per_scanline, compressed);
- for (x=0; x<w; x++) {
- ptr[3*x ] = scanline[x ];
- ptr[3*x+1] = scanline[x+ bytes_per_line ];
- ptr[3*x+2] = scanline[x+(bytes_per_line<<1)];
+ for (x = 0; x < w; x++) {
+ ptr[3 * x] = scanline[x];
+ ptr[3 * x + 1] = scanline[x + bytes_per_line];
+ ptr[3 * x + 2] = scanline[x + (bytes_per_line << 1)];
}
ptr += stride;
}
-
} else if (nplanes == 1 && bits_per_pixel == 8) {
int palstart = avpkt->size - 769;
- for (y=0; y<h; y++, ptr+=stride) {
+ for (y = 0; y < h; y++, ptr += stride) {
pcx_rle_decode(&gb, scanline, bytes_per_scanline, compressed);
memcpy(ptr, scanline, w);
}
@@ -173,31 +174,29 @@ static int pcx_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
ret = AVERROR_INVALIDDATA;
goto end;
}
-
} else if (nplanes == 1) { /* all packed formats, max. 16 colors */
GetBitContext s;
- for (y=0; y<h; y++) {
+ for (y = 0; y < h; y++) {
init_get_bits8(&s, scanline, bytes_per_scanline);
pcx_rle_decode(&gb, scanline, bytes_per_scanline, compressed);
- for (x=0; x<w; x++)
+ for (x = 0; x < w; x++)
ptr[x] = get_bits(&s, bits_per_pixel);
ptr += stride;
}
-
} else { /* planar, 4, 8 or 16 colors */
int i;
- for (y=0; y<h; y++) {
+ for (y = 0; y < h; y++) {
pcx_rle_decode(&gb, scanline, bytes_per_scanline, compressed);
- for (x=0; x<w; x++) {
- int m = 0x80 >> (x&7), v = 0;
- for (i=nplanes - 1; i>=0; i--) {
+ for (x = 0; x < w; x++) {
+ int m = 0x80 >> (x & 7), v = 0;
+ for (i = nplanes - 1; i >= 0; i--) {
v <<= 1;
- v += !!(scanline[i*bytes_per_line + (x>>3)] & m);
+ v += !!(scanline[i * bytes_per_line + (x >> 3)] & m);
}
ptr[x] = v;
}
@@ -207,14 +206,14 @@ static int pcx_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
ret = bytestream2_tell(&gb);
if (nplanes == 1 && bits_per_pixel == 8) {
- pcx_palette(&gb, (uint32_t *) p->data[1], 256);
+ pcx_palette(&gb, (uint32_t *)p->data[1], 256);
ret += 256 * 3;
} else if (bits_per_pixel * nplanes == 1) {
AV_WN32A(p->data[1] , 0xFF000000);
AV_WN32A(p->data[1]+4, 0xFFFFFFFF);
} else if (bits_per_pixel < 8) {
bytestream2_seek(&gb, 16, SEEK_SET);
- pcx_palette(&gb, (uint32_t *) p->data[1], 16);
+ pcx_palette(&gb, (uint32_t *)p->data[1], 16);
}
*got_frame = 1;
@@ -225,10 +224,10 @@ end:
}
AVCodec ff_pcx_decoder = {
- .name = "pcx",
- .type = AVMEDIA_TYPE_VIDEO,
- .id = AV_CODEC_ID_PCX,
- .decode = pcx_decode_frame,
- .capabilities = CODEC_CAP_DR1,
- .long_name = NULL_IF_CONFIG_SMALL("PC Paintbrush PCX image"),
+ .name = "pcx",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_PCX,
+ .decode = pcx_decode_frame,
+ .capabilities = CODEC_CAP_DR1,
+ .long_name = NULL_IF_CONFIG_SMALL("PC Paintbrush PCX image"),
};