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author | Michael Niedermayer <michaelni@gmx.at> | 2013-07-12 12:36:04 +0200 |
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committer | Michael Niedermayer <michaelni@gmx.at> | 2013-07-12 12:36:04 +0200 |
commit | 54bbb9056801b778126a4bf5036d9d3638da1802 (patch) | |
tree | 6cffb68457486351ced1dc2f59f0db246aa8a5dc /libavcodec/pcx.c | |
parent | c6953589f9c48a7420ea4284f404fb656ddf869f (diff) | |
parent | 170fb593c617cd797d00cf05bfb8d8c21d612893 (diff) | |
download | ffmpeg-54bbb9056801b778126a4bf5036d9d3638da1802.tar.gz |
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.c | 107 |
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"), }; |