| 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 "libavutil/imgutils.h" | ||
| 25 | #include "libavutil/parseutils.h" | ||
| 26 | #include "libavutil/pixdesc.h" | ||
| 27 | #include "libavutil/opt.h" | ||
| 28 | #include "demux.h" | ||
| 29 | #include "internal.h" | ||
| 30 | #include "avformat.h" | ||
| 31 | |||
| 32 | typedef struct RawVideoDemuxerContext { | ||
| 33 | const AVClass *class; /**< Class for private options. */ | ||
| 34 | int width, height; /**< Integers describing video size, set by a private option. */ | ||
| 35 | char *pixel_format; /**< Set by a private option. */ | ||
| 36 | AVRational framerate; /**< AVRational describing framerate, set by a private option. */ | ||
| 37 | } RawVideoDemuxerContext; | ||
| 38 | |||
| 39 | // v210 frame width is padded to multiples of 48 | ||
| 40 | #define GET_PACKET_SIZE(w, h) (((w + 47) / 48) * 48 * h * 8 / 3) | ||
| 41 | |||
| 42 | 565 | static int rawvideo_read_header(AVFormatContext *ctx) | |
| 43 | { | ||
| 44 | 565 | RawVideoDemuxerContext *s = ctx->priv_data; | |
| 45 | enum AVPixelFormat pix_fmt; | ||
| 46 | AVStream *st; | ||
| 47 | int packet_size; | ||
| 48 | int ret; | ||
| 49 | |||
| 50 | 565 | st = avformat_new_stream(ctx, NULL); | |
| 51 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 565 times.
|
565 | if (!st) |
| 52 | ✗ | return AVERROR(ENOMEM); | |
| 53 | |||
| 54 | 565 | st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO; | |
| 55 | |||
| 56 | 565 | st->codecpar->codec_id = ffifmt(ctx->iformat)->raw_codec_id; | |
| 57 | |||
| 58 |
1/2✓ Branch 1 taken 565 times.
✗ Branch 2 not taken.
|
565 | if ((ffifmt(ctx->iformat)->raw_codec_id != AV_CODEC_ID_V210) && |
| 59 |
1/2✓ Branch 1 taken 565 times.
✗ Branch 2 not taken.
|
565 | (ffifmt(ctx->iformat)->raw_codec_id != AV_CODEC_ID_V210X)) { |
| 60 |
1/2✗ Branch 1 not taken.
✓ Branch 2 taken 565 times.
|
565 | if ((pix_fmt = av_get_pix_fmt(s->pixel_format)) == AV_PIX_FMT_NONE) { |
| 61 | ✗ | av_log(ctx, AV_LOG_ERROR, "No such pixel format: %s.\n", | |
| 62 | s->pixel_format); | ||
| 63 | ✗ | return AVERROR(EINVAL); | |
| 64 | } | ||
| 65 | } | ||
| 66 | |||
| 67 | 565 | avpriv_set_pts_info(st, 64, s->framerate.den, s->framerate.num); | |
| 68 | |||
| 69 | 565 | ret = av_image_check_size(s->width, s->height, 0, ctx); | |
| 70 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 565 times.
|
565 | if (ret < 0) |
| 71 | ✗ | return ret; | |
| 72 | |||
| 73 | 565 | st->codecpar->width = s->width; | |
| 74 | 565 | st->codecpar->height = s->height; | |
| 75 | |||
| 76 |
1/2✗ Branch 1 not taken.
✓ Branch 2 taken 565 times.
|
565 | if (ffifmt(ctx->iformat)->raw_codec_id == AV_CODEC_ID_BITPACKED) { |
| 77 | unsigned int pgroup; /* size of the pixel group in bytes */ | ||
| 78 | unsigned int xinc; | ||
| 79 | const AVPixFmtDescriptor *desc; | ||
| 80 | int tag; | ||
| 81 | |||
| 82 | ✗ | desc = av_pix_fmt_desc_get(pix_fmt); | |
| 83 | ✗ | st->codecpar->bits_per_coded_sample = av_get_bits_per_pixel(desc); | |
| 84 | ✗ | if (pix_fmt == AV_PIX_FMT_YUV422P10) { | |
| 85 | ✗ | tag = MKTAG('U', 'Y', 'V', 'Y'); | |
| 86 | ✗ | pgroup = 5; | |
| 87 | ✗ | xinc = 2; | |
| 88 | ✗ | } else if (pix_fmt == AV_PIX_FMT_UYVY422) { | |
| 89 | ✗ | tag = MKTAG('U', 'Y', 'V', 'Y'); | |
| 90 | ✗ | pgroup = 4; | |
| 91 | ✗ | xinc = 2; | |
| 92 | ✗ | st->codecpar->codec_id = AV_CODEC_ID_RAWVIDEO; | |
| 93 | } else { | ||
| 94 | ✗ | av_log(ctx, AV_LOG_ERROR, "unsupported format: %s for bitpacked.\n", | |
| 95 | s->pixel_format); | ||
| 96 | ✗ | return AVERROR(EINVAL); | |
| 97 | } | ||
| 98 | ✗ | st->codecpar->codec_tag = tag; | |
| 99 | ✗ | packet_size = s->width * s->height * pgroup / xinc; | |
| 100 |
1/2✓ Branch 1 taken 565 times.
✗ Branch 2 not taken.
|
565 | } else if ((ffifmt(ctx->iformat)->raw_codec_id == AV_CODEC_ID_V210) || |
| 101 |
1/2✗ Branch 1 not taken.
✓ Branch 2 taken 565 times.
|
565 | (ffifmt(ctx->iformat)->raw_codec_id == AV_CODEC_ID_V210X)) { |
| 102 | ✗ | pix_fmt = ffifmt(ctx->iformat)->raw_codec_id == AV_CODEC_ID_V210 ? | |
| 103 | ✗ | AV_PIX_FMT_YUV422P10 : AV_PIX_FMT_YUV422P16; | |
| 104 | |||
| 105 | ✗ | packet_size = GET_PACKET_SIZE(s->width, s->height); | |
| 106 | } else { | ||
| 107 | 565 | packet_size = av_image_get_buffer_size(pix_fmt, s->width, s->height, 1); | |
| 108 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 565 times.
|
565 | if (packet_size < 0) |
| 109 | ✗ | return packet_size; | |
| 110 | } | ||
| 111 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 565 times.
|
565 | if (packet_size == 0) |
| 112 | ✗ | return AVERROR(EINVAL); | |
| 113 | |||
| 114 | 565 | st->codecpar->format = pix_fmt; | |
| 115 | 565 | ctx->packet_size = packet_size; | |
| 116 | 565 | st->codecpar->bit_rate = av_rescale_q(ctx->packet_size, | |
| 117 | 565 | (AVRational){8,1}, st->time_base); | |
| 118 | |||
| 119 | 565 | return 0; | |
| 120 | } | ||
| 121 | |||
| 122 | |||
| 123 | 24548 | static int rawvideo_read_packet(AVFormatContext *s, AVPacket *pkt) | |
| 124 | { | ||
| 125 | int ret; | ||
| 126 | |||
| 127 | 24548 | ret = av_get_packet(s->pb, pkt, s->packet_size); | |
| 128 | 24548 | pkt->pts = pkt->dts = pkt->pos / s->packet_size; | |
| 129 | |||
| 130 | 24548 | pkt->stream_index = 0; | |
| 131 |
2/2✓ Branch 0 taken 462 times.
✓ Branch 1 taken 24086 times.
|
24548 | if (ret < 0) |
| 132 | 462 | return ret; | |
| 133 | 24086 | return 0; | |
| 134 | } | ||
| 135 | |||
| 136 | #define OFFSET(x) offsetof(RawVideoDemuxerContext, x) | ||
| 137 | #define DEC AV_OPT_FLAG_DECODING_PARAM | ||
| 138 | static const AVOption rawvideo_options[] = { | ||
| 139 | /* pixel_format is not used by the v210 demuxers. */ | ||
| 140 | { "pixel_format", "set pixel format", OFFSET(pixel_format), AV_OPT_TYPE_STRING, {.str = "yuv420p"}, 0, 0, DEC }, | ||
| 141 | { "video_size", "set frame size", OFFSET(width), AV_OPT_TYPE_IMAGE_SIZE, {.str = NULL}, 0, 0, DEC }, | ||
| 142 | { "framerate", "set frame rate", OFFSET(framerate), AV_OPT_TYPE_VIDEO_RATE, {.str = "25"}, 0, INT_MAX, DEC }, | ||
| 143 | { NULL }, | ||
| 144 | }; | ||
| 145 | |||
| 146 | static const AVClass rawvideo_demuxer_class = { | ||
| 147 | .class_name = "rawvideo demuxer", | ||
| 148 | .item_name = av_default_item_name, | ||
| 149 | .option = rawvideo_options, | ||
| 150 | .version = LIBAVUTIL_VERSION_INT, | ||
| 151 | }; | ||
| 152 | |||
| 153 | const FFInputFormat ff_rawvideo_demuxer = { | ||
| 154 | .p.name = "rawvideo", | ||
| 155 | .p.long_name = NULL_IF_CONFIG_SMALL("raw video"), | ||
| 156 | .p.flags = AVFMT_GENERIC_INDEX, | ||
| 157 | .p.extensions = "yuv,cif,qcif,rgb", | ||
| 158 | .p.priv_class = &rawvideo_demuxer_class, | ||
| 159 | .priv_data_size = sizeof(RawVideoDemuxerContext), | ||
| 160 | .read_header = rawvideo_read_header, | ||
| 161 | .read_packet = rawvideo_read_packet, | ||
| 162 | .raw_codec_id = AV_CODEC_ID_RAWVIDEO, | ||
| 163 | }; | ||
| 164 | |||
| 165 | static const AVClass bitpacked_demuxer_class = { | ||
| 166 | .class_name = "bitpacked demuxer", | ||
| 167 | .item_name = av_default_item_name, | ||
| 168 | .option = rawvideo_options, | ||
| 169 | .version = LIBAVUTIL_VERSION_INT, | ||
| 170 | }; | ||
| 171 | |||
| 172 | #if CONFIG_BITPACKED_DEMUXER | ||
| 173 | const FFInputFormat ff_bitpacked_demuxer = { | ||
| 174 | .p.name = "bitpacked", | ||
| 175 | .p.long_name = NULL_IF_CONFIG_SMALL("Bitpacked"), | ||
| 176 | .p.flags = AVFMT_GENERIC_INDEX, | ||
| 177 | .p.extensions = "bitpacked", | ||
| 178 | .p.priv_class = &bitpacked_demuxer_class, | ||
| 179 | .priv_data_size = sizeof(RawVideoDemuxerContext), | ||
| 180 | .read_header = rawvideo_read_header, | ||
| 181 | .read_packet = rawvideo_read_packet, | ||
| 182 | .raw_codec_id = AV_CODEC_ID_BITPACKED, | ||
| 183 | }; | ||
| 184 | #endif // CONFIG_BITPACKED_DEMUXER | ||
| 185 | |||
| 186 | static const AVClass v210_demuxer_class = { | ||
| 187 | .class_name = "v210(x) demuxer", | ||
| 188 | .item_name = av_default_item_name, | ||
| 189 | .option = rawvideo_options + 1, | ||
| 190 | .version = LIBAVUTIL_VERSION_INT, | ||
| 191 | }; | ||
| 192 | |||
| 193 | #if CONFIG_V210_DEMUXER | ||
| 194 | const FFInputFormat ff_v210_demuxer = { | ||
| 195 | .p.name = "v210", | ||
| 196 | .p.long_name = NULL_IF_CONFIG_SMALL("Uncompressed 4:2:2 10-bit"), | ||
| 197 | .p.flags = AVFMT_GENERIC_INDEX, | ||
| 198 | .p.extensions = "v210", | ||
| 199 | .p.priv_class = &v210_demuxer_class, | ||
| 200 | .priv_data_size = sizeof(RawVideoDemuxerContext), | ||
| 201 | .read_header = rawvideo_read_header, | ||
| 202 | .read_packet = rawvideo_read_packet, | ||
| 203 | .raw_codec_id = AV_CODEC_ID_V210, | ||
| 204 | }; | ||
| 205 | #endif // CONFIG_V210_DEMUXER | ||
| 206 | |||
| 207 | #if CONFIG_V210X_DEMUXER | ||
| 208 | const FFInputFormat ff_v210x_demuxer = { | ||
| 209 | .p.name = "v210x", | ||
| 210 | .p.long_name = NULL_IF_CONFIG_SMALL("Uncompressed 4:2:2 10-bit"), | ||
| 211 | .p.flags = AVFMT_GENERIC_INDEX, | ||
| 212 | .p.extensions = "yuv10", | ||
| 213 | .p.priv_class = &v210_demuxer_class, | ||
| 214 | .priv_data_size = sizeof(RawVideoDemuxerContext), | ||
| 215 | .read_header = rawvideo_read_header, | ||
| 216 | .read_packet = rawvideo_read_packet, | ||
| 217 | .raw_codec_id = AV_CODEC_ID_V210X, | ||
| 218 | }; | ||
| 219 | #endif // CONFIG_V210X_DEMUXER | ||
| 220 |