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Diffstat (limited to 'ffmpeg/libavcodec/dpxenc.c')
-rw-r--r--ffmpeg/libavcodec/dpxenc.c261
1 files changed, 0 insertions, 261 deletions
diff --git a/ffmpeg/libavcodec/dpxenc.c b/ffmpeg/libavcodec/dpxenc.c
deleted file mode 100644
index 0eb1297..0000000
--- a/ffmpeg/libavcodec/dpxenc.c
+++ /dev/null
@@ -1,261 +0,0 @@
-/*
- * DPX (.dpx) image encoder
- * Copyright (c) 2011 Peter Ross <pross@xvid.org>
- *
- * 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/common.h"
-#include "libavutil/intreadwrite.h"
-#include "libavutil/imgutils.h"
-#include "avcodec.h"
-#include "internal.h"
-
-typedef struct DPXContext {
- int big_endian;
- int bits_per_component;
- int descriptor;
- int planar;
-} DPXContext;
-
-static av_cold int encode_init(AVCodecContext *avctx)
-{
- DPXContext *s = avctx->priv_data;
- const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
-
- s->big_endian = !!(desc->flags & AV_PIX_FMT_FLAG_BE);
- s->bits_per_component = desc->comp[0].depth_minus1 + 1;
- s->descriptor = (desc->flags & AV_PIX_FMT_FLAG_ALPHA) ? 51 : 50;
- s->planar = !!(desc->flags & AV_PIX_FMT_FLAG_PLANAR);
-
- switch (avctx->pix_fmt) {
- case AV_PIX_FMT_ABGR:
- s->descriptor = 52;
- break;
- case AV_PIX_FMT_GRAY16BE:
- case AV_PIX_FMT_GRAY16LE:
- case AV_PIX_FMT_GRAY8:
- s->descriptor = 6;
- break;
- case AV_PIX_FMT_GBRP10BE:
- case AV_PIX_FMT_GBRP10LE:
- case AV_PIX_FMT_GBRP12BE:
- case AV_PIX_FMT_GBRP12LE:
- case AV_PIX_FMT_RGB24:
- case AV_PIX_FMT_RGBA64BE:
- case AV_PIX_FMT_RGBA64LE:
- case AV_PIX_FMT_RGBA:
- break;
- case AV_PIX_FMT_RGB48LE:
- case AV_PIX_FMT_RGB48BE:
- if (avctx->bits_per_raw_sample)
- s->bits_per_component = avctx->bits_per_raw_sample;
- break;
- default:
- av_log(avctx, AV_LOG_INFO, "unsupported pixel format\n");
- return -1;
- }
-
- return 0;
-}
-
-#define write16(p, value) \
-do { \
- if (s->big_endian) AV_WB16(p, value); \
- else AV_WL16(p, value); \
-} while(0)
-
-#define write32(p, value) \
-do { \
- if (s->big_endian) AV_WB32(p, value); \
- else AV_WL32(p, value); \
-} while(0)
-
-static void encode_rgb48_10bit(AVCodecContext *avctx, const AVPicture *pic, uint8_t *dst)
-{
- DPXContext *s = avctx->priv_data;
- const uint8_t *src = pic->data[0];
- int x, y;
-
- for (y = 0; y < avctx->height; y++) {
- for (x = 0; x < avctx->width; x++) {
- int value;
- if (s->big_endian) {
- value = ((AV_RB16(src + 6*x + 4) & 0xFFC0U) >> 4)
- | ((AV_RB16(src + 6*x + 2) & 0xFFC0U) << 6)
- | ((AV_RB16(src + 6*x + 0) & 0xFFC0U) << 16);
- } else {
- value = ((AV_RL16(src + 6*x + 4) & 0xFFC0U) >> 4)
- | ((AV_RL16(src + 6*x + 2) & 0xFFC0U) << 6)
- | ((AV_RL16(src + 6*x + 0) & 0xFFC0U) << 16);
- }
- write32(dst, value);
- dst += 4;
- }
- src += pic->linesize[0];
- }
-}
-
-static void encode_gbrp10(AVCodecContext *avctx, const AVPicture *pic, uint8_t *dst)
-{
- DPXContext *s = avctx->priv_data;
- const uint8_t *src[3] = {pic->data[0], pic->data[1], pic->data[2]};
- int x, y, i;
-
- for (y = 0; y < avctx->height; y++) {
- for (x = 0; x < avctx->width; x++) {
- int value;
- if (s->big_endian) {
- value = (AV_RB16(src[0] + 2*x) << 12)
- | (AV_RB16(src[1] + 2*x) << 2)
- | ((unsigned)AV_RB16(src[2] + 2*x) << 22);
- } else {
- value = (AV_RL16(src[0] + 2*x) << 12)
- | (AV_RL16(src[1] + 2*x) << 2)
- | ((unsigned)AV_RL16(src[2] + 2*x) << 22);
- }
- write32(dst, value);
- dst += 4;
- }
- for (i = 0; i < 3; i++)
- src[i] += pic->linesize[i];
- }
-}
-
-static void encode_gbrp12(AVCodecContext *avctx, const AVPicture *pic, uint16_t *dst)
-{
- DPXContext *s = avctx->priv_data;
- const uint16_t *src[3] = {(uint16_t*)pic->data[0],
- (uint16_t*)pic->data[1],
- (uint16_t*)pic->data[2]};
- int x, y, i;
- for (y = 0; y < avctx->height; y++) {
- for (x = 0; x < avctx->width; x++) {
- uint16_t value[3];
- if (s->big_endian) {
- value[1] = AV_RB16(src[0] + x) << 4;
- value[2] = AV_RB16(src[1] + x) << 4;
- value[0] = AV_RB16(src[2] + x) << 4;
- } else {
- value[1] = AV_RL16(src[0] + x) << 4;
- value[2] = AV_RL16(src[1] + x) << 4;
- value[0] = AV_RL16(src[2] + x) << 4;
- }
- for (i = 0; i < 3; i++)
- write16(dst++, value[i]);
- }
- for (i = 0; i < 3; i++)
- src[i] += pic->linesize[i]/2;
- }
-}
-
-static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
- const AVFrame *frame, int *got_packet)
-{
- DPXContext *s = avctx->priv_data;
- int size, ret;
- uint8_t *buf;
-
-#define HEADER_SIZE 1664 /* DPX Generic header */
- if (s->bits_per_component == 10)
- size = avctx->height * avctx->width * 4;
- else
- size = avpicture_get_size(avctx->pix_fmt, avctx->width, avctx->height);
- if ((ret = ff_alloc_packet2(avctx, pkt, size + HEADER_SIZE)) < 0)
- return ret;
- buf = pkt->data;
-
- memset(buf, 0, HEADER_SIZE);
-
- /* File information header */
- write32(buf, MKBETAG('S','D','P','X'));
- write32(buf + 4, HEADER_SIZE);
- memcpy (buf + 8, "V1.0", 4);
- write32(buf + 20, 1); /* new image */
- write32(buf + 24, HEADER_SIZE);
- if (!(avctx->flags & CODEC_FLAG_BITEXACT))
- memcpy (buf + 160, LIBAVCODEC_IDENT, FFMIN(sizeof(LIBAVCODEC_IDENT), 100));
- write32(buf + 660, 0xFFFFFFFF); /* unencrypted */
-
- /* Image information header */
- write16(buf + 768, 0); /* orientation; left to right, top to bottom */
- write16(buf + 770, 1); /* number of elements */
- write32(buf + 772, avctx->width);
- write32(buf + 776, avctx->height);
- buf[800] = s->descriptor;
- buf[801] = 2; /* linear transfer */
- buf[802] = 2; /* linear colorimetric */
- buf[803] = s->bits_per_component;
- write16(buf + 804, (s->bits_per_component == 10 || s->bits_per_component == 12) ?
- 1 : 0); /* packing method */
- write32(buf + 808, HEADER_SIZE); /* data offset */
-
- /* Image source information header */
- write32(buf + 1628, avctx->sample_aspect_ratio.num);
- write32(buf + 1632, avctx->sample_aspect_ratio.den);
-
- switch(s->bits_per_component) {
- case 8:
- case 16:
- size = avpicture_layout((const AVPicture*)frame, avctx->pix_fmt,
- avctx->width, avctx->height,
- buf + HEADER_SIZE, pkt->size - HEADER_SIZE);
- if (size < 0)
- return size;
- break;
- case 10:
- if (s->planar)
- encode_gbrp10(avctx, (const AVPicture*)frame, buf + HEADER_SIZE);
- else
- encode_rgb48_10bit(avctx, (const AVPicture*)frame, buf + HEADER_SIZE);
- break;
- case 12:
- encode_gbrp12(avctx, (const AVPicture*)frame, (uint16_t*)(buf + HEADER_SIZE));
- break;
- default:
- av_log(avctx, AV_LOG_ERROR, "Unsupported bit depth: %d\n", s->bits_per_component);
- return -1;
- }
-
- size += HEADER_SIZE;
-
- write32(buf + 16, size); /* file size */
-
- pkt->flags |= AV_PKT_FLAG_KEY;
- *got_packet = 1;
-
- return 0;
-}
-
-AVCodec ff_dpx_encoder = {
- .name = "dpx",
- .long_name = NULL_IF_CONFIG_SMALL("DPX (Digital Picture Exchange) image"),
- .type = AVMEDIA_TYPE_VIDEO,
- .id = AV_CODEC_ID_DPX,
- .priv_data_size = sizeof(DPXContext),
- .init = encode_init,
- .encode2 = encode_frame,
- .pix_fmts = (const enum AVPixelFormat[]){
- AV_PIX_FMT_GRAY8,
- AV_PIX_FMT_RGB24, AV_PIX_FMT_RGBA, AV_PIX_FMT_ABGR,
- AV_PIX_FMT_GRAY16LE, AV_PIX_FMT_GRAY16BE,
- AV_PIX_FMT_RGB48LE, AV_PIX_FMT_RGB48BE,
- AV_PIX_FMT_RGBA64LE, AV_PIX_FMT_RGBA64BE,
- AV_PIX_FMT_GBRP10LE, AV_PIX_FMT_GBRP10BE,
- AV_PIX_FMT_GBRP12LE, AV_PIX_FMT_GBRP12BE,
- AV_PIX_FMT_NONE},
-};
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