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author | Diego Biurrun <diego@biurrun.de> | 2005-12-22 01:10:11 +0000 |
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committer | Diego Biurrun <diego@biurrun.de> | 2005-12-22 01:10:11 +0000 |
commit | bb270c0896b39e1ae9277355e3c120ed3feb64a3 (patch) | |
tree | fc2fc2b1216d19acb3879abb6ea5a3b400f43fe4 /libavcodec/8bps.c | |
parent | 50827fcf44f34521df4708cdb633809b56fb9df3 (diff) | |
download | ffmpeg-bb270c0896b39e1ae9277355e3c120ed3feb64a3.tar.gz |
COSMETICS: tabs --> spaces, some prettyprinting
Originally committed as revision 4764 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/8bps.c')
-rw-r--r-- | libavcodec/8bps.c | 270 |
1 files changed, 135 insertions, 135 deletions
diff --git a/libavcodec/8bps.c b/libavcodec/8bps.c index 7e6e7431d6..ac97a0e451 100644 --- a/libavcodec/8bps.c +++ b/libavcodec/8bps.c @@ -44,11 +44,11 @@ const enum PixelFormat pixfmt_rgb24[] = {PIX_FMT_BGR24, PIX_FMT_RGBA32, -1}; */ typedef struct EightBpsContext { - AVCodecContext *avctx; - AVFrame pic; + AVCodecContext *avctx; + AVFrame pic; - unsigned char planes; - unsigned char planemap[4]; + unsigned char planes; + unsigned char planemap[4]; } EightBpsContext; @@ -59,87 +59,87 @@ typedef struct EightBpsContext { */ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, uint8_t *buf, int buf_size) { - EightBpsContext * const c = (EightBpsContext *)avctx->priv_data; - unsigned char *encoded = (unsigned char *)buf; - unsigned char *pixptr, *pixptr_end; - unsigned int height = avctx->height; // Real image height - unsigned int dlen, p, row; - unsigned char *lp, *dp; - unsigned char count; - unsigned int px_inc; - unsigned int planes = c->planes; - unsigned char *planemap = c->planemap; - - if(c->pic.data[0]) - avctx->release_buffer(avctx, &c->pic); - - c->pic.reference = 0; - c->pic.buffer_hints = FF_BUFFER_HINTS_VALID; - if(avctx->get_buffer(avctx, &c->pic) < 0){ - av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); - return -1; - } - - /* Set data pointer after line lengths */ - dp = encoded + planes * (height << 1); - - /* Ignore alpha plane, don't know what to do with it */ - if (planes == 4) - planes--; - - px_inc = planes + (avctx->pix_fmt == PIX_FMT_RGBA32); - - for (p = 0; p < planes; p++) { - /* Lines length pointer for this plane */ - lp = encoded + p * (height << 1); - - /* Decode a plane */ - for(row = 0; row < height; row++) { - pixptr = c->pic.data[0] + row * c->pic.linesize[0] + planemap[p]; - pixptr_end = pixptr + c->pic.linesize[0]; - dlen = be2me_16(*(unsigned short *)(lp+row*2)); - /* Decode a row of this plane */ - while(dlen > 0) { - if(dp + 1 >= buf+buf_size) return -1; - if ((count = *dp++) <= 127) { - count++; - dlen -= count + 1; - if (pixptr + count * px_inc > pixptr_end) - break; - if(dp + count > buf+buf_size) return -1; - while(count--) { - *pixptr = *dp++; - pixptr += px_inc; - } - } else { - count = 257 - count; - if (pixptr + count * px_inc > pixptr_end) - break; - while(count--) { - *pixptr = *dp; - pixptr += px_inc; - } - dp++; - dlen -= 2; - } - } - } - } - - if (avctx->palctrl) { - memcpy (c->pic.data[1], avctx->palctrl->palette, AVPALETTE_SIZE); - if (avctx->palctrl->palette_changed) { - c->pic.palette_has_changed = 1; - avctx->palctrl->palette_changed = 0; - } else - c->pic.palette_has_changed = 0; - } - - *data_size = sizeof(AVFrame); - *(AVFrame*)data = c->pic; - - /* always report that the buffer was completely consumed */ - return buf_size; + EightBpsContext * const c = (EightBpsContext *)avctx->priv_data; + unsigned char *encoded = (unsigned char *)buf; + unsigned char *pixptr, *pixptr_end; + unsigned int height = avctx->height; // Real image height + unsigned int dlen, p, row; + unsigned char *lp, *dp; + unsigned char count; + unsigned int px_inc; + unsigned int planes = c->planes; + unsigned char *planemap = c->planemap; + + if(c->pic.data[0]) + avctx->release_buffer(avctx, &c->pic); + + c->pic.reference = 0; + c->pic.buffer_hints = FF_BUFFER_HINTS_VALID; + if(avctx->get_buffer(avctx, &c->pic) < 0){ + av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); + return -1; + } + + /* Set data pointer after line lengths */ + dp = encoded + planes * (height << 1); + + /* Ignore alpha plane, don't know what to do with it */ + if (planes == 4) + planes--; + + px_inc = planes + (avctx->pix_fmt == PIX_FMT_RGBA32); + + for (p = 0; p < planes; p++) { + /* Lines length pointer for this plane */ + lp = encoded + p * (height << 1); + + /* Decode a plane */ + for(row = 0; row < height; row++) { + pixptr = c->pic.data[0] + row * c->pic.linesize[0] + planemap[p]; + pixptr_end = pixptr + c->pic.linesize[0]; + dlen = be2me_16(*(unsigned short *)(lp+row*2)); + /* Decode a row of this plane */ + while(dlen > 0) { + if(dp + 1 >= buf+buf_size) return -1; + if ((count = *dp++) <= 127) { + count++; + dlen -= count + 1; + if (pixptr + count * px_inc > pixptr_end) + break; + if(dp + count > buf+buf_size) return -1; + while(count--) { + *pixptr = *dp++; + pixptr += px_inc; + } + } else { + count = 257 - count; + if (pixptr + count * px_inc > pixptr_end) + break; + while(count--) { + *pixptr = *dp; + pixptr += px_inc; + } + dp++; + dlen -= 2; + } + } + } + } + + if (avctx->palctrl) { + memcpy (c->pic.data[1], avctx->palctrl->palette, AVPALETTE_SIZE); + if (avctx->palctrl->palette_changed) { + c->pic.palette_has_changed = 1; + avctx->palctrl->palette_changed = 0; + } else + c->pic.palette_has_changed = 0; + } + + *data_size = sizeof(AVFrame); + *(AVFrame*)data = c->pic; + + /* always report that the buffer was completely consumed */ + return buf_size; } @@ -150,53 +150,53 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, uint8 */ static int decode_init(AVCodecContext *avctx) { - EightBpsContext * const c = (EightBpsContext *)avctx->priv_data; + EightBpsContext * const c = (EightBpsContext *)avctx->priv_data; - c->avctx = avctx; - avctx->has_b_frames = 0; + c->avctx = avctx; + avctx->has_b_frames = 0; - c->pic.data[0] = NULL; + c->pic.data[0] = NULL; if (avcodec_check_dimensions(avctx, avctx->width, avctx->height) < 0) { return 1; } - switch (avctx->bits_per_sample) { - case 8: - avctx->pix_fmt = PIX_FMT_PAL8; - c->planes = 1; - c->planemap[0] = 0; // 1st plane is palette indexes - if (avctx->palctrl == NULL) { - av_log(avctx, AV_LOG_ERROR, "Error: PAL8 format but no palette from demuxer.\n"); - return -1; - } - break; - case 24: - avctx->pix_fmt = avctx->get_format(avctx, pixfmt_rgb24); - c->planes = 3; - c->planemap[0] = 2; // 1st plane is red - c->planemap[1] = 1; // 2nd plane is green - c->planemap[2] = 0; // 3rd plane is blue - break; - case 32: - avctx->pix_fmt = PIX_FMT_RGBA32; - c->planes = 4; + switch (avctx->bits_per_sample) { + case 8: + avctx->pix_fmt = PIX_FMT_PAL8; + c->planes = 1; + c->planemap[0] = 0; // 1st plane is palette indexes + if (avctx->palctrl == NULL) { + av_log(avctx, AV_LOG_ERROR, "Error: PAL8 format but no palette from demuxer.\n"); + return -1; + } + break; + case 24: + avctx->pix_fmt = avctx->get_format(avctx, pixfmt_rgb24); + c->planes = 3; + c->planemap[0] = 2; // 1st plane is red + c->planemap[1] = 1; // 2nd plane is green + c->planemap[2] = 0; // 3rd plane is blue + break; + case 32: + avctx->pix_fmt = PIX_FMT_RGBA32; + c->planes = 4; #ifdef WORDS_BIGENDIAN - c->planemap[0] = 1; // 1st plane is red - c->planemap[1] = 2; // 2nd plane is green - c->planemap[2] = 3; // 3rd plane is blue - c->planemap[3] = 0; // 4th plane is alpha??? + c->planemap[0] = 1; // 1st plane is red + c->planemap[1] = 2; // 2nd plane is green + c->planemap[2] = 3; // 3rd plane is blue + c->planemap[3] = 0; // 4th plane is alpha??? #else - c->planemap[0] = 2; // 1st plane is red - c->planemap[1] = 1; // 2nd plane is green - c->planemap[2] = 0; // 3rd plane is blue - c->planemap[3] = 3; // 4th plane is alpha??? + c->planemap[0] = 2; // 1st plane is red + c->planemap[1] = 1; // 2nd plane is green + c->planemap[2] = 0; // 3rd plane is blue + c->planemap[3] = 3; // 4th plane is alpha??? #endif - break; - default: - av_log(avctx, AV_LOG_ERROR, "Error: Unsupported color depth: %u.\n", avctx->bits_per_sample); - return -1; - } + break; + default: + av_log(avctx, AV_LOG_ERROR, "Error: Unsupported color depth: %u.\n", avctx->bits_per_sample); + return -1; + } return 0; } @@ -211,24 +211,24 @@ static int decode_init(AVCodecContext *avctx) */ static int decode_end(AVCodecContext *avctx) { - EightBpsContext * const c = (EightBpsContext *)avctx->priv_data; + EightBpsContext * const c = (EightBpsContext *)avctx->priv_data; - if (c->pic.data[0]) - avctx->release_buffer(avctx, &c->pic); + if (c->pic.data[0]) + avctx->release_buffer(avctx, &c->pic); - return 0; + return 0; } AVCodec eightbps_decoder = { - "8bps", - CODEC_TYPE_VIDEO, - CODEC_ID_8BPS, - sizeof(EightBpsContext), - decode_init, - NULL, - decode_end, - decode_frame, - CODEC_CAP_DR1, + "8bps", + CODEC_TYPE_VIDEO, + CODEC_ID_8BPS, + sizeof(EightBpsContext), + decode_init, + NULL, + decode_end, + decode_frame, + CODEC_CAP_DR1, }; 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