| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * v410 decoder | ||
| 3 | * | ||
| 4 | * Copyright (c) 2011 Derek Buitenhuis | ||
| 5 | * | ||
| 6 | * This file is part of FFmpeg. | ||
| 7 | * | ||
| 8 | * FFmpeg is free software; you can redistribute it and/or | ||
| 9 | * modify it under the terms of the GNU Lesser General Public | ||
| 10 | * License as published by the Free Software Foundation; either | ||
| 11 | * version 2.1 of the License, or (at your option) any later version. | ||
| 12 | * | ||
| 13 | * FFmpeg is distributed in the hope that it will be useful, | ||
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 16 | * Lesser General Public License for more details. | ||
| 17 | * | ||
| 18 | * You should have received a copy of the GNU Lesser General Public | ||
| 19 | * License along with FFmpeg; if not, write to the Free Software | ||
| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 21 | */ | ||
| 22 | |||
| 23 | #include "libavutil/common.h" | ||
| 24 | #include "libavutil/intreadwrite.h" | ||
| 25 | #include "avcodec.h" | ||
| 26 | #include "codec_internal.h" | ||
| 27 | #include "thread.h" | ||
| 28 | |||
| 29 | typedef struct ThreadData { | ||
| 30 | AVFrame *frame; | ||
| 31 | const uint8_t *buf; | ||
| 32 | int stride; | ||
| 33 | } ThreadData; | ||
| 34 | |||
| 35 | 2 | static av_cold int v410_decode_init(AVCodecContext *avctx) | |
| 36 | { | ||
| 37 | 2 | avctx->pix_fmt = AV_PIX_FMT_YUV444P10; | |
| 38 | 2 | avctx->bits_per_raw_sample = 10; | |
| 39 | |||
| 40 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 2 times.
|
2 | if (avctx->width & 1) { |
| 41 | ✗ | if (avctx->err_recognition & AV_EF_EXPLODE) { | |
| 42 | ✗ | av_log(avctx, AV_LOG_ERROR, "v410 requires width to be even.\n"); | |
| 43 | ✗ | return AVERROR_INVALIDDATA; | |
| 44 | } else { | ||
| 45 | ✗ | av_log(avctx, AV_LOG_WARNING, "v410 requires width to be even, continuing anyway.\n"); | |
| 46 | } | ||
| 47 | } | ||
| 48 | |||
| 49 | 2 | return 0; | |
| 50 | } | ||
| 51 | |||
| 52 | 1 | static int v410_decode_slice(AVCodecContext *avctx, void *arg, int jobnr, int threadnr) | |
| 53 | { | ||
| 54 | 1 | ThreadData *td = arg; | |
| 55 | 1 | AVFrame *pic = td->frame; | |
| 56 | 1 | int stride = td->stride; | |
| 57 | 1 | int thread_count = av_clip(avctx->thread_count, 1, avctx->height/4); | |
| 58 | 1 | int slice_start = (avctx->height * jobnr) / thread_count; | |
| 59 | 1 | int slice_end = (avctx->height * (jobnr+1)) / thread_count; | |
| 60 | 1 | const uint8_t *src = td->buf + stride * slice_start; | |
| 61 | uint16_t *y, *u, *v; | ||
| 62 | uint32_t val; | ||
| 63 | int i, j; | ||
| 64 | |||
| 65 | 1 | y = (uint16_t*)pic->data[0] + slice_start * (pic->linesize[0] >> 1); | |
| 66 | 1 | u = (uint16_t*)pic->data[1] + slice_start * (pic->linesize[1] >> 1); | |
| 67 | 1 | v = (uint16_t*)pic->data[2] + slice_start * (pic->linesize[2] >> 1); | |
| 68 | |||
| 69 |
2/2✓ Branch 0 taken 256 times.
✓ Branch 1 taken 1 times.
|
257 | for (i = slice_start; i < slice_end; i++) { |
| 70 |
2/2✓ Branch 0 taken 65536 times.
✓ Branch 1 taken 256 times.
|
65792 | for (j = 0; j < avctx->width; j++) { |
| 71 | 65536 | val = AV_RL32(src); | |
| 72 | |||
| 73 | 65536 | u[j] = (val >> 2) & 0x3FF; | |
| 74 | 65536 | y[j] = (val >> 12) & 0x3FF; | |
| 75 | 65536 | v[j] = (val >> 22); | |
| 76 | |||
| 77 | 65536 | src += 4; | |
| 78 | } | ||
| 79 | |||
| 80 | 256 | y += pic->linesize[0] >> 1; | |
| 81 | 256 | u += pic->linesize[1] >> 1; | |
| 82 | 256 | v += pic->linesize[2] >> 1; | |
| 83 | } | ||
| 84 | |||
| 85 | 1 | return 0; | |
| 86 | } | ||
| 87 | |||
| 88 | 1 | static int v410_decode_frame(AVCodecContext *avctx, AVFrame *pic, | |
| 89 | int *got_frame, AVPacket *avpkt) | ||
| 90 | { | ||
| 91 | ThreadData td; | ||
| 92 | 1 | const uint8_t *src = avpkt->data; | |
| 93 | int ret; | ||
| 94 | 1 | int thread_count = av_clip(avctx->thread_count, 1, avctx->height/4); | |
| 95 | |||
| 96 | 1 | td.stride = avctx->width * 4; | |
| 97 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 1 times.
|
1 | if (avpkt->size < 4 * avctx->height * avctx->width) { |
| 98 | ✗ | av_log(avctx, AV_LOG_ERROR, "Insufficient input data.\n"); | |
| 99 | ✗ | return AVERROR(EINVAL); | |
| 100 | } | ||
| 101 | |||
| 102 |
1/2✗ Branch 1 not taken.
✓ Branch 2 taken 1 times.
|
1 | if ((ret = ff_thread_get_buffer(avctx, pic, 0)) < 0) |
| 103 | ✗ | return ret; | |
| 104 | |||
| 105 | 1 | pic->flags |= AV_FRAME_FLAG_KEY; | |
| 106 | 1 | pic->pict_type = AV_PICTURE_TYPE_I; | |
| 107 | |||
| 108 | 1 | td.buf = src; | |
| 109 | 1 | td.frame = pic; | |
| 110 | 1 | avctx->execute2(avctx, v410_decode_slice, &td, NULL, thread_count); | |
| 111 | |||
| 112 | 1 | *got_frame = 1; | |
| 113 | |||
| 114 | 1 | return avpkt->size; | |
| 115 | } | ||
| 116 | |||
| 117 | const FFCodec ff_v410_decoder = { | ||
| 118 | .p.name = "v410", | ||
| 119 | CODEC_LONG_NAME("Uncompressed 4:4:4 10-bit"), | ||
| 120 | .p.type = AVMEDIA_TYPE_VIDEO, | ||
| 121 | .p.id = AV_CODEC_ID_V410, | ||
| 122 | .init = v410_decode_init, | ||
| 123 | FF_CODEC_DECODE_CB(v410_decode_frame), | ||
| 124 | .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_SLICE_THREADS | | ||
| 125 | AV_CODEC_CAP_FRAME_THREADS, | ||
| 126 | }; | ||
| 127 |