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2ba45a60 DM |
1 | /* |
2 | * Copyright (c) 2010, Google, Inc. | |
3 | * | |
4 | * This file is part of FFmpeg. | |
5 | * | |
6 | * FFmpeg is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU Lesser General Public | |
8 | * License as published by the Free Software Foundation; either | |
9 | * version 2.1 of the License, or (at your option) any later version. | |
10 | * | |
11 | * FFmpeg is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * Lesser General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU Lesser General Public | |
17 | * License along with FFmpeg; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
21 | /** | |
22 | * @file | |
23 | * VP8 decoder support via libvpx | |
24 | */ | |
25 | ||
26 | #define VPX_CODEC_DISABLE_COMPAT 1 | |
27 | #include <vpx/vpx_decoder.h> | |
28 | #include <vpx/vp8dx.h> | |
29 | ||
30 | #include "libavutil/common.h" | |
31 | #include "libavutil/imgutils.h" | |
32 | #include "avcodec.h" | |
33 | #include "internal.h" | |
34 | #include "libvpx.h" | |
35 | ||
36 | typedef struct VP8DecoderContext { | |
37 | struct vpx_codec_ctx decoder; | |
38 | } VP8Context; | |
39 | ||
40 | static av_cold int vpx_init(AVCodecContext *avctx, | |
41 | const struct vpx_codec_iface *iface) | |
42 | { | |
43 | VP8Context *ctx = avctx->priv_data; | |
44 | struct vpx_codec_dec_cfg deccfg = { | |
45 | /* token partitions+1 would be a decent choice */ | |
46 | .threads = FFMIN(avctx->thread_count, 16) | |
47 | }; | |
48 | ||
49 | av_log(avctx, AV_LOG_INFO, "%s\n", vpx_codec_version_str()); | |
50 | av_log(avctx, AV_LOG_VERBOSE, "%s\n", vpx_codec_build_config()); | |
51 | ||
52 | if (vpx_codec_dec_init(&ctx->decoder, iface, &deccfg, 0) != VPX_CODEC_OK) { | |
53 | const char *error = vpx_codec_error(&ctx->decoder); | |
54 | av_log(avctx, AV_LOG_ERROR, "Failed to initialize decoder: %s\n", | |
55 | error); | |
56 | return AVERROR(EINVAL); | |
57 | } | |
58 | ||
2ba45a60 DM |
59 | return 0; |
60 | } | |
61 | ||
f6fa7814 DM |
62 | // returns 0 on success, AVERROR_INVALIDDATA otherwise |
63 | static int set_pix_fmt(AVCodecContext *avctx, struct vpx_image *img) { | |
64 | if (avctx->codec_id == AV_CODEC_ID_VP8 && img->fmt != VPX_IMG_FMT_I420) | |
65 | return AVERROR_INVALIDDATA; | |
66 | switch (img->fmt) { | |
67 | case VPX_IMG_FMT_I420: | |
68 | avctx->pix_fmt = AV_PIX_FMT_YUV420P; | |
69 | return 0; | |
70 | #if CONFIG_LIBVPX_VP9_DECODER | |
71 | case VPX_IMG_FMT_I422: | |
72 | avctx->pix_fmt = AV_PIX_FMT_YUV422P; | |
73 | return 0; | |
74 | case VPX_IMG_FMT_I444: | |
75 | avctx->pix_fmt = AV_PIX_FMT_YUV444P; | |
76 | return 0; | |
77 | #ifdef VPX_IMG_FMT_HIGHBITDEPTH | |
78 | case VPX_IMG_FMT_I42016: | |
79 | if (img->bit_depth == 10) { | |
80 | avctx->pix_fmt = AV_PIX_FMT_YUV420P10LE; | |
81 | return 0; | |
82 | } else if (img->bit_depth == 12) { | |
83 | avctx->pix_fmt = AV_PIX_FMT_YUV420P12LE; | |
84 | return 0; | |
85 | } else { | |
86 | return AVERROR_INVALIDDATA; | |
87 | } | |
88 | case VPX_IMG_FMT_I42216: | |
89 | if (img->bit_depth == 10) { | |
90 | avctx->pix_fmt = AV_PIX_FMT_YUV422P10LE; | |
91 | return 0; | |
92 | } else if (img->bit_depth == 12) { | |
93 | avctx->pix_fmt = AV_PIX_FMT_YUV422P12LE; | |
94 | return 0; | |
95 | } else { | |
96 | return AVERROR_INVALIDDATA; | |
97 | } | |
98 | case VPX_IMG_FMT_I44416: | |
99 | if (img->bit_depth == 10) { | |
100 | avctx->pix_fmt = AV_PIX_FMT_YUV444P10LE; | |
101 | return 0; | |
102 | } else if (img->bit_depth == 12) { | |
103 | avctx->pix_fmt = AV_PIX_FMT_YUV444P12LE; | |
104 | return 0; | |
105 | } else { | |
106 | return AVERROR_INVALIDDATA; | |
107 | } | |
108 | #endif | |
109 | #endif | |
110 | default: | |
111 | return AVERROR_INVALIDDATA; | |
112 | } | |
113 | } | |
114 | ||
2ba45a60 DM |
115 | static int vp8_decode(AVCodecContext *avctx, |
116 | void *data, int *got_frame, AVPacket *avpkt) | |
117 | { | |
118 | VP8Context *ctx = avctx->priv_data; | |
119 | AVFrame *picture = data; | |
120 | const void *iter = NULL; | |
121 | struct vpx_image *img; | |
122 | int ret; | |
123 | ||
124 | if (vpx_codec_decode(&ctx->decoder, avpkt->data, avpkt->size, NULL, 0) != | |
125 | VPX_CODEC_OK) { | |
126 | const char *error = vpx_codec_error(&ctx->decoder); | |
127 | const char *detail = vpx_codec_error_detail(&ctx->decoder); | |
128 | ||
129 | av_log(avctx, AV_LOG_ERROR, "Failed to decode frame: %s\n", error); | |
130 | if (detail) | |
131 | av_log(avctx, AV_LOG_ERROR, " Additional information: %s\n", | |
132 | detail); | |
133 | return AVERROR_INVALIDDATA; | |
134 | } | |
135 | ||
136 | if ((img = vpx_codec_get_frame(&ctx->decoder, &iter))) { | |
f6fa7814 DM |
137 | if ((ret = set_pix_fmt(avctx, img)) < 0) { |
138 | #ifdef VPX_IMG_FMT_HIGHBITDEPTH | |
139 | av_log(avctx, AV_LOG_ERROR, "Unsupported output colorspace (%d) / bit_depth (%d)\n", | |
140 | img->fmt, img->bit_depth); | |
141 | #else | |
142 | av_log(avctx, AV_LOG_ERROR, "Unsupported output colorspace (%d) / bit_depth (%d)\n", | |
143 | img->fmt, 8); | |
144 | #endif | |
145 | return ret; | |
2ba45a60 DM |
146 | } |
147 | ||
148 | if ((int) img->d_w != avctx->width || (int) img->d_h != avctx->height) { | |
149 | av_log(avctx, AV_LOG_INFO, "dimension change! %dx%d -> %dx%d\n", | |
150 | avctx->width, avctx->height, img->d_w, img->d_h); | |
151 | ret = ff_set_dimensions(avctx, img->d_w, img->d_h); | |
152 | if (ret < 0) | |
153 | return ret; | |
154 | } | |
155 | if ((ret = ff_get_buffer(avctx, picture, 0)) < 0) | |
156 | return ret; | |
157 | av_image_copy(picture->data, picture->linesize, (const uint8_t **)img->planes, | |
158 | img->stride, avctx->pix_fmt, img->d_w, img->d_h); | |
159 | *got_frame = 1; | |
160 | } | |
161 | return avpkt->size; | |
162 | } | |
163 | ||
164 | static av_cold int vp8_free(AVCodecContext *avctx) | |
165 | { | |
166 | VP8Context *ctx = avctx->priv_data; | |
167 | vpx_codec_destroy(&ctx->decoder); | |
168 | return 0; | |
169 | } | |
170 | ||
171 | #if CONFIG_LIBVPX_VP8_DECODER | |
172 | static av_cold int vp8_init(AVCodecContext *avctx) | |
173 | { | |
174 | return vpx_init(avctx, &vpx_codec_vp8_dx_algo); | |
175 | } | |
176 | ||
177 | AVCodec ff_libvpx_vp8_decoder = { | |
178 | .name = "libvpx", | |
179 | .long_name = NULL_IF_CONFIG_SMALL("libvpx VP8"), | |
180 | .type = AVMEDIA_TYPE_VIDEO, | |
181 | .id = AV_CODEC_ID_VP8, | |
182 | .priv_data_size = sizeof(VP8Context), | |
183 | .init = vp8_init, | |
184 | .close = vp8_free, | |
185 | .decode = vp8_decode, | |
186 | .capabilities = CODEC_CAP_AUTO_THREADS | CODEC_CAP_DR1, | |
187 | }; | |
188 | #endif /* CONFIG_LIBVPX_VP8_DECODER */ | |
189 | ||
190 | #if CONFIG_LIBVPX_VP9_DECODER | |
191 | static av_cold int vp9_init(AVCodecContext *avctx) | |
192 | { | |
193 | return vpx_init(avctx, &vpx_codec_vp9_dx_algo); | |
194 | } | |
195 | ||
196 | AVCodec ff_libvpx_vp9_decoder = { | |
197 | .name = "libvpx-vp9", | |
198 | .long_name = NULL_IF_CONFIG_SMALL("libvpx VP9"), | |
199 | .type = AVMEDIA_TYPE_VIDEO, | |
200 | .id = AV_CODEC_ID_VP9, | |
201 | .priv_data_size = sizeof(VP8Context), | |
202 | .init = vp9_init, | |
203 | .close = vp8_free, | |
204 | .decode = vp8_decode, | |
205 | .capabilities = CODEC_CAP_AUTO_THREADS | CODEC_CAP_DR1, | |
206 | .init_static_data = ff_vp9_init_static, | |
207 | }; | |
208 | #endif /* CONFIG_LIBVPX_VP9_DECODER */ |