mirror of https://github.com/FFmpeg/FFmpeg.git
v410 is a packed 10-bit 4:4:4 YCbCr format used in QuickTime. Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com> Signed-off-by: Diego Biurrun <diego@biurrun.de>pull/2/head
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86ae512453
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80f6c0bb95
10 changed files with 222 additions and 2 deletions
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/*
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* v410 decoder |
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* |
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* Copyright (c) 2011 Derek Buitenhuis |
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* |
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* This file is part of Libav. |
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* |
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* Libav is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* Libav is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with Libav; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include "avcodec.h" |
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#include "get_bits.h" |
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static av_cold int v410_decode_init(AVCodecContext *avctx) |
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{ |
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avctx->pix_fmt = PIX_FMT_YUV444P10; |
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avctx->bits_per_raw_sample = 10; |
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if (avctx->width & 1) { |
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av_log(avctx, AV_LOG_ERROR, "v410 requires even width.\n"); |
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return AVERROR_INVALIDDATA; |
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} |
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avctx->coded_frame = avcodec_alloc_frame(); |
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if (!avctx->coded_frame) { |
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av_log(avctx, AV_LOG_ERROR, "Could not allocate frame.\n"); |
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return AVERROR(ENOMEM); |
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} |
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return 0; |
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} |
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static int v410_decode_frame(AVCodecContext *avctx, void *data, |
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int *data_size, AVPacket *avpkt) |
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{ |
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AVFrame *pic = avctx->coded_frame; |
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uint8_t *src = avpkt->data; |
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uint16_t *y, *u, *v; |
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uint32_t val; |
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int i, j; |
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if (pic->data[0]) |
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avctx->release_buffer(avctx, pic); |
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pic->reference = 0; |
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if (avctx->get_buffer(avctx, pic) < 0) { |
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av_log(avctx, AV_LOG_ERROR, "Could not allocate buffer.\n"); |
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return AVERROR(ENOMEM); |
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} |
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pic->key_frame = 1; |
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pic->pict_type = FF_I_TYPE; |
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y = (uint16_t *)pic->data[0]; |
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u = (uint16_t *)pic->data[1]; |
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v = (uint16_t *)pic->data[2]; |
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for (i = 0; i < avctx->height; i++) { |
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for (j = 0; j < avctx->width; j++) { |
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val = AV_RL32(src); |
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u[j] = (val >> 2) & 0x3FF; |
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y[j] = (val >> 12) & 0x3FF; |
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v[j] = (val >> 22); |
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src += 4; |
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} |
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y += pic->linesize[0] >> 1; |
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u += pic->linesize[1] >> 1; |
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v += pic->linesize[2] >> 1; |
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} |
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*data_size = sizeof(AVFrame); |
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*(AVFrame *)data = *pic; |
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return avpkt->size; |
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} |
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static av_cold int v410_decode_close(AVCodecContext *avctx) |
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{ |
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if (avctx->coded_frame->data[0]) |
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avctx->release_buffer(avctx, avctx->coded_frame); |
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av_freep(&avctx->coded_frame); |
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return 0; |
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} |
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AVCodec ff_v410_decoder = { |
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.name = "v410", |
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.type = AVMEDIA_TYPE_VIDEO, |
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.id = CODEC_ID_V410, |
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.init = v410_decode_init, |
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.decode = v410_decode_frame, |
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.close = v410_decode_close, |
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.capabilities = CODEC_CAP_DR1, |
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.long_name = NULL_IF_CONFIG_SMALL("Uncompressed 4:4:4 10-bit"), |
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}; |
@ -0,0 +1,99 @@ |
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/*
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* v410 encoder |
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* |
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* Copyright (c) 2011 Derek Buitenhuis |
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* |
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* This file is part of Libav. |
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* |
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* Libav is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* Libav is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with Libav; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include "avcodec.h" |
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#include "put_bits.h" |
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static av_cold int v410_encode_init(AVCodecContext *avctx) |
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{ |
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if (avctx->width & 1) { |
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av_log(avctx, AV_LOG_ERROR, "v410 requires even width.\n"); |
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return AVERROR_INVALIDDATA; |
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} |
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avctx->coded_frame = avcodec_alloc_frame(); |
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if (!avctx->coded_frame) { |
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av_log(avctx, AV_LOG_ERROR, "Could not allocate frame.\n"); |
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return AVERROR(ENOMEM); |
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} |
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return 0; |
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} |
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static int v410_encode_frame(AVCodecContext *avctx, uint8_t *buf, |
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int buf_size, void *data) |
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{ |
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AVFrame *pic = data; |
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uint8_t *dst = buf; |
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uint16_t *y, *u, *v; |
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uint32_t val; |
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int i, j; |
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int output_size = 0; |
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if (buf_size < avctx->width * avctx->height * 3) { |
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av_log(avctx, AV_LOG_ERROR, "Out buffer is too small.\n"); |
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return AVERROR(ENOMEM); |
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} |
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avctx->coded_frame->reference = 0; |
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avctx->coded_frame->key_frame = 1; |
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avctx->coded_frame->pict_type = FF_I_TYPE; |
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y = (uint16_t *)pic->data[0]; |
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u = (uint16_t *)pic->data[1]; |
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v = (uint16_t *)pic->data[2]; |
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for (i = 0; i < avctx->height; i++) { |
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for (j = 0; j < avctx->width; j++) { |
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val = u[j] << 2; |
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val |= y[j] << 12; |
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val |= v[j] << 22; |
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AV_WL32(dst, val); |
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dst += 4; |
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output_size += 4; |
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} |
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y += pic->linesize[0] >> 1; |
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u += pic->linesize[1] >> 1; |
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v += pic->linesize[2] >> 1; |
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} |
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return output_size; |
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} |
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static av_cold int v410_encode_close(AVCodecContext *avctx) |
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{ |
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av_freep(&avctx->coded_frame); |
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return 0; |
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} |
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AVCodec ff_v410_encoder = { |
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.name = "v410", |
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.type = AVMEDIA_TYPE_VIDEO, |
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.id = CODEC_ID_V410, |
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.init = v410_encode_init, |
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.encode = v410_encode_frame, |
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.close = v410_encode_close, |
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.pix_fmts = (const enum PixelFormat[]){ PIX_FMT_YUV444P10, PIX_FMT_NONE }, |
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.long_name = NULL_IF_CONFIG_SMALL("Uncompressed 4:4:4 10-bit"), |
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}; |
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