| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * RAW video demuxer | ||
| 3 | * Copyright (c) 2001 Fabrice Bellard | ||
| 4 | * | ||
| 5 | * This file is part of FFmpeg. | ||
| 6 | * | ||
| 7 | * FFmpeg is free software; you can redistribute it and/or | ||
| 8 | * modify it under the terms of the GNU Lesser General Public | ||
| 9 | * License as published by the Free Software Foundation; either | ||
| 10 | * version 2.1 of the License, or (at your option) any later version. | ||
| 11 | * | ||
| 12 | * FFmpeg is distributed in the hope that it will be useful, | ||
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 15 | * Lesser General Public License for more details. | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU Lesser General Public | ||
| 18 | * License along with FFmpeg; if not, write to the Free Software | ||
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 20 | */ | ||
| 21 | |||
| 22 | #include "config_components.h" | ||
| 23 | |||
| 24 | #include <stdbool.h> | ||
| 25 | |||
| 26 | #include "libavutil/imgutils.h" | ||
| 27 | #include "libavutil/parseutils.h" | ||
| 28 | #include "libavutil/pixdesc.h" | ||
| 29 | #include "libavutil/opt.h" | ||
| 30 | #include "demux.h" | ||
| 31 | #include "internal.h" | ||
| 32 | #include "avformat.h" | ||
| 33 | |||
| 34 | typedef struct RawVideoDemuxerContext { | ||
| 35 | const AVClass *class; /**< Class for private options. */ | ||
| 36 | int width, height; /**< Integers describing video size, set by a private option. */ | ||
| 37 | enum AVPixelFormat pix_fmt; | ||
| 38 | AVRational framerate; /**< AVRational describing framerate, set by a private option. */ | ||
| 39 | |||
| 40 | bool has_padding; | ||
| 41 | /* We could derive linesize[1 to N] from linesize[0] for multiplane formats, | ||
| 42 | * but having users explicitly specify linesize for each plane can reduce | ||
| 43 | * unexpected results and support more use cases. | ||
| 44 | */ | ||
| 45 | int *linesize; | ||
| 46 | unsigned nb_linesize; | ||
| 47 | // with padding | ||
| 48 | size_t frame_size; | ||
| 49 | // linesize without padding | ||
| 50 | int raw_bytes[4]; | ||
| 51 | } RawVideoDemuxerContext; | ||
| 52 | |||
| 53 | // v210 frame width is padded to multiples of 48 | ||
| 54 | #define GET_PACKET_SIZE(w, h) (((w + 47) / 48) * 48 * h * 8 / 3) | ||
| 55 | |||
| 56 | 571 | static int rawvideo_read_header(AVFormatContext *ctx) | |
| 57 | { | ||
| 58 | 571 | RawVideoDemuxerContext *s = ctx->priv_data; | |
| 59 | 571 | enum AVPixelFormat pix_fmt = s->pix_fmt; | |
| 60 | AVStream *st; | ||
| 61 | int packet_size; | ||
| 62 | int ret; | ||
| 63 | |||
| 64 | 571 | st = avformat_new_stream(ctx, NULL); | |
| 65 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 571 times.
|
571 | if (!st) |
| 66 | ✗ | return AVERROR(ENOMEM); | |
| 67 | |||
| 68 | 571 | st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO; | |
| 69 | |||
| 70 | 571 | st->codecpar->codec_id = ffifmt(ctx->iformat)->raw_codec_id; | |
| 71 | 571 | avpriv_set_pts_info(st, 64, s->framerate.den, s->framerate.num); | |
| 72 | |||
| 73 | 571 | ret = av_image_check_size(s->width, s->height, 0, ctx); | |
| 74 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 571 times.
|
571 | if (ret < 0) |
| 75 | ✗ | return ret; | |
| 76 | |||
| 77 | 571 | st->codecpar->width = s->width; | |
| 78 | 571 | st->codecpar->height = s->height; | |
| 79 | |||
| 80 |
2/2✓ Branch 0 taken 2 times.
✓ Branch 1 taken 569 times.
|
571 | if (s->nb_linesize) { |
| 81 | 2 | int n = av_pix_fmt_count_planes(pix_fmt); | |
| 82 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 2 times.
|
2 | if (s->nb_linesize != n) { |
| 83 | ✗ | av_log(ctx, AV_LOG_ERROR, "Invalid number of stride %u, " | |
| 84 | "pixel format has %d plane\n", | ||
| 85 | s->nb_linesize, n); | ||
| 86 | ✗ | return AVERROR(EINVAL); | |
| 87 | } | ||
| 88 | |||
| 89 | 2 | ret = av_image_fill_linesizes(s->raw_bytes, pix_fmt, s->width); | |
| 90 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 2 times.
|
2 | if (ret < 0) |
| 91 | ✗ | return ret; | |
| 92 | |||
| 93 | 2 | size_t linesize[4] = {0}; | |
| 94 |
2/2✓ Branch 0 taken 4 times.
✓ Branch 1 taken 2 times.
|
6 | for (int i = 0; i < n; i++) { |
| 95 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 4 times.
|
4 | if (s->linesize[i] < s->raw_bytes[i]) { |
| 96 | ✗ | av_log(ctx, AV_LOG_ERROR, "Invalid stride %u of plane %d, " | |
| 97 | "minimum required size is %d for width %d\n", | ||
| 98 | ✗ | s->linesize[i], i, s->raw_bytes[i], s->width); | |
| 99 | ✗ | return AVERROR(EINVAL); | |
| 100 | } | ||
| 101 |
1/2✓ Branch 0 taken 4 times.
✗ Branch 1 not taken.
|
4 | if (s->linesize[i] > s->raw_bytes[i]) |
| 102 | 4 | s->has_padding = true; | |
| 103 | 4 | linesize[i] = s->linesize[i]; | |
| 104 | } | ||
| 105 | |||
| 106 | 2 | size_t plane_size[4] = {0}; | |
| 107 | 2 | av_image_fill_plane_sizes(plane_size, pix_fmt, s->height, linesize); | |
| 108 | 2 | s->frame_size = plane_size[0] + plane_size[1] + plane_size[2] + plane_size[3]; | |
| 109 | } | ||
| 110 | |||
| 111 |
1/2✗ Branch 1 not taken.
✓ Branch 2 taken 571 times.
|
571 | if (ffifmt(ctx->iformat)->raw_codec_id == AV_CODEC_ID_BITPACKED) { |
| 112 | unsigned int pgroup; /* size of the pixel group in bytes */ | ||
| 113 | unsigned int xinc; | ||
| 114 | const AVPixFmtDescriptor *desc; | ||
| 115 | int tag; | ||
| 116 | |||
| 117 | ✗ | desc = av_pix_fmt_desc_get(pix_fmt); | |
| 118 | ✗ | st->codecpar->bits_per_coded_sample = av_get_bits_per_pixel(desc); | |
| 119 | ✗ | if (pix_fmt == AV_PIX_FMT_YUV422P10) { | |
| 120 | ✗ | tag = MKTAG('U', 'Y', 'V', 'Y'); | |
| 121 | ✗ | pgroup = 5; | |
| 122 | ✗ | xinc = 2; | |
| 123 | ✗ | } else if (pix_fmt == AV_PIX_FMT_UYVY422) { | |
| 124 | ✗ | tag = MKTAG('U', 'Y', 'V', 'Y'); | |
| 125 | ✗ | pgroup = 4; | |
| 126 | ✗ | xinc = 2; | |
| 127 | ✗ | st->codecpar->codec_id = AV_CODEC_ID_RAWVIDEO; | |
| 128 | } else { | ||
| 129 | ✗ | av_log(ctx, AV_LOG_ERROR, "unsupported format: %s for bitpacked.\n", | |
| 130 | ✗ | desc->name); | |
| 131 | ✗ | return AVERROR(EINVAL); | |
| 132 | } | ||
| 133 | ✗ | st->codecpar->codec_tag = tag; | |
| 134 | ✗ | packet_size = s->width * s->height * pgroup / xinc; | |
| 135 |
1/2✓ Branch 1 taken 571 times.
✗ Branch 2 not taken.
|
571 | } else if ((ffifmt(ctx->iformat)->raw_codec_id == AV_CODEC_ID_V210) || |
| 136 |
1/2✗ Branch 1 not taken.
✓ Branch 2 taken 571 times.
|
571 | (ffifmt(ctx->iformat)->raw_codec_id == AV_CODEC_ID_V210X)) { |
| 137 | ✗ | pix_fmt = ffifmt(ctx->iformat)->raw_codec_id == AV_CODEC_ID_V210 ? | |
| 138 | ✗ | AV_PIX_FMT_YUV422P10 : AV_PIX_FMT_YUV422P16; | |
| 139 | |||
| 140 | ✗ | packet_size = GET_PACKET_SIZE(s->width, s->height); | |
| 141 | } else { | ||
| 142 | 571 | packet_size = av_image_get_buffer_size(pix_fmt, s->width, s->height, 1); | |
| 143 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 571 times.
|
571 | if (packet_size < 0) |
| 144 | ✗ | return packet_size; | |
| 145 | } | ||
| 146 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 571 times.
|
571 | if (packet_size == 0) |
| 147 | ✗ | return AVERROR(EINVAL); | |
| 148 | |||
| 149 | 571 | st->codecpar->format = pix_fmt; | |
| 150 | 571 | ctx->packet_size = packet_size; | |
| 151 | 571 | st->codecpar->bit_rate = av_rescale_q(ctx->packet_size, | |
| 152 | 571 | (AVRational){8,1}, st->time_base); | |
| 153 | |||
| 154 | 571 | return 0; | |
| 155 | } | ||
| 156 | |||
| 157 | |||
| 158 | 24251 | static int rawvideo_read_packet(AVFormatContext *ctx, AVPacket *pkt) | |
| 159 | { | ||
| 160 | int ret; | ||
| 161 | 24251 | RawVideoDemuxerContext *s = ctx->priv_data; | |
| 162 | |||
| 163 |
2/2✓ Branch 0 taken 24244 times.
✓ Branch 1 taken 7 times.
|
24251 | if (!s->has_padding) { |
| 164 | 24244 | ret = av_get_packet(ctx->pb, pkt, ctx->packet_size); | |
| 165 |
2/2✓ Branch 0 taken 466 times.
✓ Branch 1 taken 23778 times.
|
24244 | if (ret < 0) |
| 166 | 466 | return ret; | |
| 167 | 23778 | pkt->pts = pkt->dts = pkt->pos / ctx->packet_size; | |
| 168 | |||
| 169 | 23778 | return 0; | |
| 170 | } | ||
| 171 | |||
| 172 | 7 | ret = av_new_packet(pkt, ctx->packet_size); | |
| 173 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 7 times.
|
7 | if (ret < 0) |
| 174 | ✗ | return ret; | |
| 175 | |||
| 176 | 7 | pkt->pos = avio_tell(ctx->pb); | |
| 177 | 7 | pkt->pts = pkt->dts = pkt->pos / s->frame_size; | |
| 178 | |||
| 179 | 7 | const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->pix_fmt); | |
| 180 | 7 | uint8_t *p = pkt->data; | |
| 181 |
2/2✓ Branch 0 taken 12 times.
✓ Branch 1 taken 4 times.
|
16 | for (int i = 0; i < s->nb_linesize; i++) { |
| 182 |
4/4✓ Branch 0 taken 9 times.
✓ Branch 1 taken 3 times.
✓ Branch 2 taken 2 times.
✓ Branch 3 taken 7 times.
|
12 | int shift = (i == 1 || i == 2) ? desc->log2_chroma_h : 0; |
| 183 | 12 | int h = AV_CEIL_RSHIFT(s->height, shift); | |
| 184 | 12 | int skip_bytes = s->linesize[i] - s->raw_bytes[i]; | |
| 185 | |||
| 186 |
2/2✓ Branch 0 taken 3503 times.
✓ Branch 1 taken 9 times.
|
3512 | for (int j = 0; j < h; j++) { |
| 187 | 3503 | ret = avio_read(ctx->pb, p, s->raw_bytes[i]); | |
| 188 |
2/2✓ Branch 0 taken 3 times.
✓ Branch 1 taken 3500 times.
|
3503 | if (ret != s->raw_bytes[i]) { |
| 189 |
2/4✓ Branch 0 taken 3 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 3 times.
|
3 | if (ret < 0 && ret != AVERROR_EOF) |
| 190 | ✗ | return ret; | |
| 191 | |||
| 192 |
3/4✓ Branch 0 taken 3 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 2 times.
✓ Branch 3 taken 1 times.
|
3 | if (ret == AVERROR_EOF && p == pkt->data) |
| 193 | 2 | return AVERROR_EOF; | |
| 194 | |||
| 195 | 1 | memset(p, 0, pkt->size - (p - pkt->data)); | |
| 196 | 1 | pkt->flags |= AV_PKT_FLAG_CORRUPT; | |
| 197 | |||
| 198 | 1 | return 0; | |
| 199 | } | ||
| 200 | |||
| 201 | 3500 | p += s->raw_bytes[i]; | |
| 202 | 3500 | avio_skip(ctx->pb, skip_bytes); | |
| 203 | } | ||
| 204 | } | ||
| 205 | |||
| 206 | 4 | return 0; | |
| 207 | } | ||
| 208 | |||
| 209 | #define OFFSET(x) offsetof(RawVideoDemuxerContext, x) | ||
| 210 | #define DEC AV_OPT_FLAG_DECODING_PARAM | ||
| 211 | static const AVOption rawvideo_options[] = { | ||
| 212 | // Only supported by rawvideo demuxer | ||
| 213 | {"stride", "frame line size in bytes", OFFSET(linesize), AV_OPT_TYPE_INT | AV_OPT_TYPE_FLAG_ARRAY, {.arr = NULL}, 0, INT_MAX, DEC }, | ||
| 214 | #define BITPACKED_OPTION_OFFSET 1 // skip stride option | ||
| 215 | /* pixel_format is not used by the v210 demuxers. */ | ||
| 216 | { "pixel_format", "set pixel format", OFFSET(pix_fmt), AV_OPT_TYPE_PIXEL_FMT, {.i64 = AV_PIX_FMT_YUV420P}, AV_PIX_FMT_YUV420P, INT_MAX, DEC }, | ||
| 217 | #define V210_OPTION_OFFSET 2 // skip stride and pixel_format option | ||
| 218 | { "video_size", "set frame size", OFFSET(width), AV_OPT_TYPE_IMAGE_SIZE, {.str = NULL}, 0, 0, DEC }, | ||
| 219 | { "framerate", "set frame rate", OFFSET(framerate), AV_OPT_TYPE_VIDEO_RATE, {.str = "25"}, 0, INT_MAX, DEC }, | ||
| 220 | { NULL }, | ||
| 221 | }; | ||
| 222 | |||
| 223 | static const AVClass rawvideo_demuxer_class = { | ||
| 224 | .class_name = "rawvideo demuxer", | ||
| 225 | .item_name = av_default_item_name, | ||
| 226 | .option = rawvideo_options, | ||
| 227 | .version = LIBAVUTIL_VERSION_INT, | ||
| 228 | }; | ||
| 229 | |||
| 230 | const FFInputFormat ff_rawvideo_demuxer = { | ||
| 231 | .p.name = "rawvideo", | ||
| 232 | .p.long_name = NULL_IF_CONFIG_SMALL("raw video"), | ||
| 233 | .p.flags = AVFMT_GENERIC_INDEX, | ||
| 234 | .p.extensions = "yuv,cif,qcif,rgb", | ||
| 235 | .p.priv_class = &rawvideo_demuxer_class, | ||
| 236 | .priv_data_size = sizeof(RawVideoDemuxerContext), | ||
| 237 | .read_header = rawvideo_read_header, | ||
| 238 | .read_packet = rawvideo_read_packet, | ||
| 239 | .raw_codec_id = AV_CODEC_ID_RAWVIDEO, | ||
| 240 | }; | ||
| 241 | |||
| 242 | static const AVClass bitpacked_demuxer_class = { | ||
| 243 | .class_name = "bitpacked demuxer", | ||
| 244 | .item_name = av_default_item_name, | ||
| 245 | .option = &rawvideo_options[BITPACKED_OPTION_OFFSET], | ||
| 246 | .version = LIBAVUTIL_VERSION_INT, | ||
| 247 | }; | ||
| 248 | |||
| 249 | #if CONFIG_BITPACKED_DEMUXER | ||
| 250 | const FFInputFormat ff_bitpacked_demuxer = { | ||
| 251 | .p.name = "bitpacked", | ||
| 252 | .p.long_name = NULL_IF_CONFIG_SMALL("Bitpacked"), | ||
| 253 | .p.flags = AVFMT_GENERIC_INDEX, | ||
| 254 | .p.extensions = "bitpacked", | ||
| 255 | .p.priv_class = &bitpacked_demuxer_class, | ||
| 256 | .priv_data_size = sizeof(RawVideoDemuxerContext), | ||
| 257 | .read_header = rawvideo_read_header, | ||
| 258 | .read_packet = rawvideo_read_packet, | ||
| 259 | .raw_codec_id = AV_CODEC_ID_BITPACKED, | ||
| 260 | }; | ||
| 261 | #endif // CONFIG_BITPACKED_DEMUXER | ||
| 262 | |||
| 263 | static const AVClass v210_demuxer_class = { | ||
| 264 | .class_name = "v210(x) demuxer", | ||
| 265 | .item_name = av_default_item_name, | ||
| 266 | .option = &rawvideo_options[V210_OPTION_OFFSET], | ||
| 267 | .version = LIBAVUTIL_VERSION_INT, | ||
| 268 | }; | ||
| 269 | |||
| 270 | #if CONFIG_V210_DEMUXER | ||
| 271 | const FFInputFormat ff_v210_demuxer = { | ||
| 272 | .p.name = "v210", | ||
| 273 | .p.long_name = NULL_IF_CONFIG_SMALL("Uncompressed 4:2:2 10-bit"), | ||
| 274 | .p.flags = AVFMT_GENERIC_INDEX, | ||
| 275 | .p.extensions = "v210", | ||
| 276 | .p.priv_class = &v210_demuxer_class, | ||
| 277 | .priv_data_size = sizeof(RawVideoDemuxerContext), | ||
| 278 | .read_header = rawvideo_read_header, | ||
| 279 | .read_packet = rawvideo_read_packet, | ||
| 280 | .raw_codec_id = AV_CODEC_ID_V210, | ||
| 281 | }; | ||
| 282 | #endif // CONFIG_V210_DEMUXER | ||
| 283 | |||
| 284 | #if CONFIG_V210X_DEMUXER | ||
| 285 | const FFInputFormat ff_v210x_demuxer = { | ||
| 286 | .p.name = "v210x", | ||
| 287 | .p.long_name = NULL_IF_CONFIG_SMALL("Uncompressed 4:2:2 10-bit"), | ||
| 288 | .p.flags = AVFMT_GENERIC_INDEX, | ||
| 289 | .p.extensions = "yuv10", | ||
| 290 | .p.priv_class = &v210_demuxer_class, | ||
| 291 | .priv_data_size = sizeof(RawVideoDemuxerContext), | ||
| 292 | .read_header = rawvideo_read_header, | ||
| 293 | .read_packet = rawvideo_read_packet, | ||
| 294 | .raw_codec_id = AV_CODEC_ID_V210X, | ||
| 295 | }; | ||
| 296 | #endif // CONFIG_V210X_DEMUXER | ||
| 297 |