3 * Copyright (c) 2001 Fabrice Bellard
4 * Copyright (c) 2005 Alex Beregszaszi
6 * This file is part of Libav.
8 * Libav 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.
13 * Libav 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.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with Libav; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
25 #include "avio_internal.h"
27 #include "libavutil/opt.h"
28 #include "libavutil/parseutils.h"
29 #include "libavutil/pixdesc.h"
31 #define RAW_PACKET_SIZE 1024
33 int ff_raw_read_partial_packet(AVFormatContext *s, AVPacket *pkt)
37 size = RAW_PACKET_SIZE;
39 if (av_new_packet(pkt, size) < 0)
40 return AVERROR(ENOMEM);
42 pkt->pos= avio_tell(s->pb);
43 pkt->stream_index = 0;
44 ret = ffio_read_partial(s->pb, pkt->data, size);
53 int ff_raw_audio_read_header(AVFormatContext *s)
55 AVStream *st = avformat_new_stream(s, NULL);
57 return AVERROR(ENOMEM);
58 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
59 st->codec->codec_id = s->iformat->raw_codec_id;
60 st->need_parsing = AVSTREAM_PARSE_FULL;
62 /* the parameters will be extracted from the compressed bitstream */
67 /* MPEG-1/H.263 input */
68 int ff_raw_video_read_header(AVFormatContext *s)
71 FFRawVideoDemuxerContext *s1 = s->priv_data;
76 st = avformat_new_stream(s, NULL);
78 ret = AVERROR(ENOMEM);
82 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
83 st->codec->codec_id = s->iformat->raw_codec_id;
84 st->need_parsing = AVSTREAM_PARSE_FULL;
86 if ((ret = av_parse_video_rate(&framerate, s1->framerate)) < 0) {
87 av_log(s, AV_LOG_ERROR, "Could not parse framerate: %s.\n", s1->framerate);
91 #if FF_API_R_FRAME_RATE
94 st->avg_frame_rate = framerate;
95 avpriv_set_pts_info(st, 64, framerate.den, framerate.num);
101 /* Note: Do not forget to add new entries to the Makefile as well. */
103 #define OFFSET(x) offsetof(FFRawVideoDemuxerContext, x)
104 #define DEC AV_OPT_FLAG_DECODING_PARAM
105 const AVOption ff_rawvideo_options[] = {
106 { "framerate", "", OFFSET(framerate), AV_OPT_TYPE_STRING, {.str = "25"}, 0, 0, DEC},
110 #if CONFIG_LATM_DEMUXER
111 AVInputFormat ff_latm_demuxer = {
113 .long_name = NULL_IF_CONFIG_SMALL("raw LOAS/LATM"),
114 .read_header = ff_raw_audio_read_header,
115 .read_packet = ff_raw_read_partial_packet,
116 .flags = AVFMT_GENERIC_INDEX,
117 .extensions = "latm",
118 .raw_codec_id = AV_CODEC_ID_AAC_LATM,
122 #if CONFIG_MJPEG_DEMUXER
123 FF_DEF_RAWVIDEO_DEMUXER(mjpeg, "raw MJPEG video", NULL, "mjpg,mjpeg", AV_CODEC_ID_MJPEG)
126 #if CONFIG_MLP_DEMUXER
127 AVInputFormat ff_mlp_demuxer = {
129 .long_name = NULL_IF_CONFIG_SMALL("raw MLP"),
130 .read_header = ff_raw_audio_read_header,
131 .read_packet = ff_raw_read_partial_packet,
132 .flags = AVFMT_GENERIC_INDEX,
134 .raw_codec_id = AV_CODEC_ID_MLP,
138 #if CONFIG_TRUEHD_DEMUXER
139 AVInputFormat ff_truehd_demuxer = {
141 .long_name = NULL_IF_CONFIG_SMALL("raw TrueHD"),
142 .read_header = ff_raw_audio_read_header,
143 .read_packet = ff_raw_read_partial_packet,
144 .flags = AVFMT_GENERIC_INDEX,
146 .raw_codec_id = AV_CODEC_ID_TRUEHD,
150 #if CONFIG_SHORTEN_DEMUXER
151 AVInputFormat ff_shorten_demuxer = {
153 .long_name = NULL_IF_CONFIG_SMALL("raw Shorten"),
154 .read_header = ff_raw_audio_read_header,
155 .read_packet = ff_raw_read_partial_packet,
156 .flags = AVFMT_NOBINSEARCH | AVFMT_NOGENSEARCH | AVFMT_NO_BYTE_SEEK,
158 .raw_codec_id = AV_CODEC_ID_SHORTEN,
162 #if CONFIG_VC1_DEMUXER
163 FF_DEF_RAWVIDEO_DEMUXER(vc1, "raw VC-1", NULL, "vc1", AV_CODEC_ID_VC1)