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Diffstat (limited to 'ffmpeg1/libavcodec/bmpenc.c')
-rw-r--r--ffmpeg1/libavcodec/bmpenc.c183
1 files changed, 0 insertions, 183 deletions
diff --git a/ffmpeg1/libavcodec/bmpenc.c b/ffmpeg1/libavcodec/bmpenc.c
deleted file mode 100644
index bda6799..0000000
--- a/ffmpeg1/libavcodec/bmpenc.c
+++ /dev/null
@@ -1,183 +0,0 @@
-/*
- * BMP image format encoder
- * Copyright (c) 2006, 2007 Michel Bardiaux
- * Copyright (c) 2009 Daniel Verkamp <daniel at drv.nu>
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * FFmpeg is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include "libavutil/imgutils.h"
-#include "libavutil/avassert.h"
-#include "avcodec.h"
-#include "bytestream.h"
-#include "bmp.h"
-#include "internal.h"
-
-static const uint32_t monoblack_pal[] = { 0x000000, 0xFFFFFF };
-static const uint32_t rgb565_masks[] = { 0xF800, 0x07E0, 0x001F };
-static const uint32_t rgb444_masks[] = { 0x0F00, 0x00F0, 0x000F };
-
-static av_cold int bmp_encode_init(AVCodecContext *avctx){
- BMPContext *s = avctx->priv_data;
-
- avcodec_get_frame_defaults(&s->picture);
- avctx->coded_frame = &s->picture;
-
- switch (avctx->pix_fmt) {
- case AV_PIX_FMT_BGRA:
- avctx->bits_per_coded_sample = 32;
- break;
- case AV_PIX_FMT_BGR24:
- avctx->bits_per_coded_sample = 24;
- break;
- case AV_PIX_FMT_RGB555:
- case AV_PIX_FMT_RGB565:
- case AV_PIX_FMT_RGB444:
- avctx->bits_per_coded_sample = 16;
- break;
- case AV_PIX_FMT_RGB8:
- case AV_PIX_FMT_BGR8:
- case AV_PIX_FMT_RGB4_BYTE:
- case AV_PIX_FMT_BGR4_BYTE:
- case AV_PIX_FMT_GRAY8:
- case AV_PIX_FMT_PAL8:
- avctx->bits_per_coded_sample = 8;
- break;
- case AV_PIX_FMT_MONOBLACK:
- avctx->bits_per_coded_sample = 1;
- break;
- default:
- av_log(avctx, AV_LOG_INFO, "unsupported pixel format\n");
- return -1;
- }
-
- return 0;
-}
-
-static int bmp_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
- const AVFrame *pict, int *got_packet)
-{
- BMPContext *s = avctx->priv_data;
- AVFrame * const p = &s->picture;
- int n_bytes_image, n_bytes_per_row, n_bytes, i, n, hsize, ret;
- const uint32_t *pal = NULL;
- uint32_t palette256[256];
- int pad_bytes_per_row, pal_entries = 0, compression = BMP_RGB;
- int bit_count = avctx->bits_per_coded_sample;
- uint8_t *ptr, *buf;
- *p = *pict;
- p->pict_type= AV_PICTURE_TYPE_I;
- p->key_frame= 1;
- switch (avctx->pix_fmt) {
- case AV_PIX_FMT_RGB444:
- compression = BMP_BITFIELDS;
- pal = rgb444_masks; // abuse pal to hold color masks
- pal_entries = 3;
- break;
- case AV_PIX_FMT_RGB565:
- compression = BMP_BITFIELDS;
- pal = rgb565_masks; // abuse pal to hold color masks
- pal_entries = 3;
- break;
- case AV_PIX_FMT_RGB8:
- case AV_PIX_FMT_BGR8:
- case AV_PIX_FMT_RGB4_BYTE:
- case AV_PIX_FMT_BGR4_BYTE:
- case AV_PIX_FMT_GRAY8:
- av_assert1(bit_count == 8);
- avpriv_set_systematic_pal2(palette256, avctx->pix_fmt);
- pal = palette256;
- break;
- case AV_PIX_FMT_PAL8:
- pal = (uint32_t *)p->data[1];
- break;
- case AV_PIX_FMT_MONOBLACK:
- pal = monoblack_pal;
- break;
- }
- if (pal && !pal_entries) pal_entries = 1 << bit_count;
- n_bytes_per_row = ((int64_t)avctx->width * (int64_t)bit_count + 7LL) >> 3LL;
- pad_bytes_per_row = (4 - n_bytes_per_row) & 3;
- n_bytes_image = avctx->height * (n_bytes_per_row + pad_bytes_per_row);
-
- // STRUCTURE.field refer to the MSVC documentation for BITMAPFILEHEADER
- // and related pages.
-#define SIZE_BITMAPFILEHEADER 14
-#define SIZE_BITMAPINFOHEADER 40
- hsize = SIZE_BITMAPFILEHEADER + SIZE_BITMAPINFOHEADER + (pal_entries << 2);
- n_bytes = n_bytes_image + hsize;
- if ((ret = ff_alloc_packet2(avctx, pkt, n_bytes)) < 0)
- return ret;
- buf = pkt->data;
- bytestream_put_byte(&buf, 'B'); // BITMAPFILEHEADER.bfType
- bytestream_put_byte(&buf, 'M'); // do.
- bytestream_put_le32(&buf, n_bytes); // BITMAPFILEHEADER.bfSize
- bytestream_put_le16(&buf, 0); // BITMAPFILEHEADER.bfReserved1
- bytestream_put_le16(&buf, 0); // BITMAPFILEHEADER.bfReserved2
- bytestream_put_le32(&buf, hsize); // BITMAPFILEHEADER.bfOffBits
- bytestream_put_le32(&buf, SIZE_BITMAPINFOHEADER); // BITMAPINFOHEADER.biSize
- bytestream_put_le32(&buf, avctx->width); // BITMAPINFOHEADER.biWidth
- bytestream_put_le32(&buf, avctx->height); // BITMAPINFOHEADER.biHeight
- bytestream_put_le16(&buf, 1); // BITMAPINFOHEADER.biPlanes
- bytestream_put_le16(&buf, bit_count); // BITMAPINFOHEADER.biBitCount
- bytestream_put_le32(&buf, compression); // BITMAPINFOHEADER.biCompression
- bytestream_put_le32(&buf, n_bytes_image); // BITMAPINFOHEADER.biSizeImage
- bytestream_put_le32(&buf, 0); // BITMAPINFOHEADER.biXPelsPerMeter
- bytestream_put_le32(&buf, 0); // BITMAPINFOHEADER.biYPelsPerMeter
- bytestream_put_le32(&buf, 0); // BITMAPINFOHEADER.biClrUsed
- bytestream_put_le32(&buf, 0); // BITMAPINFOHEADER.biClrImportant
- for (i = 0; i < pal_entries; i++)
- bytestream_put_le32(&buf, pal[i] & 0xFFFFFF);
- // BMP files are bottom-to-top so we start from the end...
- ptr = p->data[0] + (avctx->height - 1) * p->linesize[0];
- buf = pkt->data + hsize;
- for(i = 0; i < avctx->height; i++) {
- if (bit_count == 16) {
- const uint16_t *src = (const uint16_t *) ptr;
- uint16_t *dst = (uint16_t *) buf;
- for(n = 0; n < avctx->width; n++)
- AV_WL16(dst + n, src[n]);
- } else {
- memcpy(buf, ptr, n_bytes_per_row);
- }
- buf += n_bytes_per_row;
- memset(buf, 0, pad_bytes_per_row);
- buf += pad_bytes_per_row;
- ptr -= p->linesize[0]; // ... and go back
- }
-
- pkt->flags |= AV_PKT_FLAG_KEY;
- *got_packet = 1;
- return 0;
-}
-
-AVCodec ff_bmp_encoder = {
- .name = "bmp",
- .type = AVMEDIA_TYPE_VIDEO,
- .id = AV_CODEC_ID_BMP,
- .priv_data_size = sizeof(BMPContext),
- .init = bmp_encode_init,
- .encode2 = bmp_encode_frame,
- .pix_fmts = (const enum AVPixelFormat[]){
- AV_PIX_FMT_BGRA, AV_PIX_FMT_BGR24,
- AV_PIX_FMT_RGB565, AV_PIX_FMT_RGB555, AV_PIX_FMT_RGB444,
- AV_PIX_FMT_RGB8, AV_PIX_FMT_BGR8, AV_PIX_FMT_RGB4_BYTE, AV_PIX_FMT_BGR4_BYTE, AV_PIX_FMT_GRAY8, AV_PIX_FMT_PAL8,
- AV_PIX_FMT_MONOBLACK,
- AV_PIX_FMT_NONE
- },
- .long_name = NULL_IF_CONFIG_SMALL("BMP (Windows and OS/2 bitmap)"),
-};
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