lavf,lavd: remove all usage of AVFormatParameters from demuxers.
[libav.git] / libavformat / rawdec.c
1 /*
2 * RAW demuxers
3 * Copyright (c) 2001 Fabrice Bellard
4 * Copyright (c) 2005 Alex Beregszaszi
5 *
6 * This file is part of Libav.
7 *
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.
12 *
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.
17 *
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
21 */
22
23 #include "avformat.h"
24 #include "avio_internal.h"
25 #include "rawdec.h"
26 #include "libavutil/opt.h"
27 #include "libavutil/parseutils.h"
28 #include "libavutil/pixdesc.h"
29
30 /* raw input */
31 int ff_raw_read_header(AVFormatContext *s, AVFormatParameters *ap)
32 {
33 AVStream *st;
34 enum CodecID id;
35
36 st = av_new_stream(s, 0);
37 if (!st)
38 return AVERROR(ENOMEM);
39
40 id = s->iformat->value;
41 if (id == CODEC_ID_RAWVIDEO) {
42 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
43 } else {
44 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
45 }
46 st->codec->codec_id = id;
47
48 switch(st->codec->codec_type) {
49 case AVMEDIA_TYPE_AUDIO: {
50 RawAudioDemuxerContext *s1 = s->priv_data;
51
52 st->codec->channels = 1;
53
54 if (s1->sample_rate)
55 st->codec->sample_rate = s1->sample_rate;
56 if (s1->channels)
57 st->codec->channels = s1->channels;
58
59 st->codec->bits_per_coded_sample = av_get_bits_per_sample(st->codec->codec_id);
60 assert(st->codec->bits_per_coded_sample > 0);
61 st->codec->block_align = st->codec->bits_per_coded_sample*st->codec->channels/8;
62 av_set_pts_info(st, 64, 1, st->codec->sample_rate);
63 break;
64 }
65 case AVMEDIA_TYPE_VIDEO: {
66 FFRawVideoDemuxerContext *s1 = s->priv_data;
67 int width = 0, height = 0, ret = 0;
68 enum PixelFormat pix_fmt;
69 AVRational framerate;
70
71 if (s1->video_size && (ret = av_parse_video_size(&width, &height, s1->video_size)) < 0) {
72 av_log(s, AV_LOG_ERROR, "Couldn't parse video size.\n");
73 goto fail;
74 }
75 if ((pix_fmt = av_get_pix_fmt(s1->pixel_format)) == PIX_FMT_NONE) {
76 av_log(s, AV_LOG_ERROR, "No such pixel format: %s.\n", s1->pixel_format);
77 ret = AVERROR(EINVAL);
78 goto fail;
79 }
80 if ((ret = av_parse_video_rate(&framerate, s1->framerate)) < 0) {
81 av_log(s, AV_LOG_ERROR, "Could not parse framerate: %s.\n", s1->framerate);
82 goto fail;
83 }
84 av_set_pts_info(st, 64, framerate.den, framerate.num);
85 st->codec->width = width;
86 st->codec->height = height;
87 st->codec->pix_fmt = pix_fmt;
88 fail:
89 return ret;
90 }
91 default:
92 return -1;
93 }
94 return 0;
95 }
96
97 #define RAW_PACKET_SIZE 1024
98
99 int ff_raw_read_partial_packet(AVFormatContext *s, AVPacket *pkt)
100 {
101 int ret, size;
102
103 size = RAW_PACKET_SIZE;
104
105 if (av_new_packet(pkt, size) < 0)
106 return AVERROR(ENOMEM);
107
108 pkt->pos= avio_tell(s->pb);
109 pkt->stream_index = 0;
110 ret = ffio_read_partial(s->pb, pkt->data, size);
111 if (ret < 0) {
112 av_free_packet(pkt);
113 return ret;
114 }
115 pkt->size = ret;
116 return ret;
117 }
118
119 int ff_raw_audio_read_header(AVFormatContext *s,
120 AVFormatParameters *ap)
121 {
122 AVStream *st = av_new_stream(s, 0);
123 if (!st)
124 return AVERROR(ENOMEM);
125 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
126 st->codec->codec_id = s->iformat->value;
127 st->need_parsing = AVSTREAM_PARSE_FULL;
128 /* the parameters will be extracted from the compressed bitstream */
129
130 return 0;
131 }
132
133 /* MPEG-1/H.263 input */
134 int ff_raw_video_read_header(AVFormatContext *s,
135 AVFormatParameters *ap)
136 {
137 AVStream *st;
138 FFRawVideoDemuxerContext *s1 = s->priv_data;
139 AVRational framerate;
140 int ret = 0;
141
142
143 st = av_new_stream(s, 0);
144 if (!st) {
145 ret = AVERROR(ENOMEM);
146 goto fail;
147 }
148
149 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
150 st->codec->codec_id = s->iformat->value;
151 st->need_parsing = AVSTREAM_PARSE_FULL;
152
153 if ((ret = av_parse_video_rate(&framerate, s1->framerate)) < 0) {
154 av_log(s, AV_LOG_ERROR, "Could not parse framerate: %s.\n", s1->framerate);
155 goto fail;
156 }
157
158 st->codec->time_base = (AVRational){framerate.den, framerate.num};
159 av_set_pts_info(st, 64, 1, 1200000);
160
161 fail:
162 return ret;
163 }
164
165 /* Note: Do not forget to add new entries to the Makefile as well. */
166
167 static const AVOption audio_options[] = {
168 { "sample_rate", "", offsetof(RawAudioDemuxerContext, sample_rate), FF_OPT_TYPE_INT, {.dbl = 0}, 0, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
169 { "channels", "", offsetof(RawAudioDemuxerContext, channels), FF_OPT_TYPE_INT, {.dbl = 0}, 0, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
170 { NULL },
171 };
172
173 const AVClass ff_rawaudio_demuxer_class = {
174 .class_name = "rawaudio demuxer",
175 .item_name = av_default_item_name,
176 .option = audio_options,
177 .version = LIBAVUTIL_VERSION_INT,
178 };
179
180 #define OFFSET(x) offsetof(FFRawVideoDemuxerContext, x)
181 #define DEC AV_OPT_FLAG_DECODING_PARAM
182 static const AVOption video_options[] = {
183 { "video_size", "A string describing frame size, such as 640x480 or hd720.", OFFSET(video_size), FF_OPT_TYPE_STRING, {.str = NULL}, 0, 0, DEC },
184 { "pixel_format", "", OFFSET(pixel_format), FF_OPT_TYPE_STRING, {.str = "yuv420p"}, 0, 0, DEC },
185 { "framerate", "", OFFSET(framerate), FF_OPT_TYPE_STRING, {.str = "25"}, 0, 0, DEC },
186 { NULL },
187 };
188 #undef OFFSET
189 #undef DEC
190
191 const AVClass ff_rawvideo_demuxer_class = {
192 .class_name = "rawvideo demuxer",
193 .item_name = av_default_item_name,
194 .option = video_options,
195 .version = LIBAVUTIL_VERSION_INT,
196 };
197
198 #if CONFIG_G722_DEMUXER
199 AVInputFormat ff_g722_demuxer = {
200 .name = "g722",
201 .long_name = NULL_IF_CONFIG_SMALL("raw G.722"),
202 .priv_data_size = sizeof(RawAudioDemuxerContext),
203 .read_header = ff_raw_read_header,
204 .read_packet = ff_raw_read_partial_packet,
205 .flags= AVFMT_GENERIC_INDEX,
206 .extensions = "g722,722",
207 .value = CODEC_ID_ADPCM_G722,
208 .priv_class = &ff_rawaudio_demuxer_class,
209 };
210 #endif
211
212 #if CONFIG_GSM_DEMUXER
213 AVInputFormat ff_gsm_demuxer = {
214 .name = "gsm",
215 .long_name = NULL_IF_CONFIG_SMALL("raw GSM"),
216 .read_header = ff_raw_audio_read_header,
217 .read_packet = ff_raw_read_partial_packet,
218 .flags= AVFMT_GENERIC_INDEX,
219 .extensions = "gsm",
220 .value = CODEC_ID_GSM,
221 };
222 #endif
223
224 #if CONFIG_MJPEG_DEMUXER
225 FF_DEF_RAWVIDEO_DEMUXER(mjpeg, "raw MJPEG video", NULL, "mjpg,mjpeg", CODEC_ID_MJPEG)
226 #endif
227
228 #if CONFIG_MLP_DEMUXER
229 AVInputFormat ff_mlp_demuxer = {
230 .name = "mlp",
231 .long_name = NULL_IF_CONFIG_SMALL("raw MLP"),
232 .read_header = ff_raw_audio_read_header,
233 .read_packet = ff_raw_read_partial_packet,
234 .flags= AVFMT_GENERIC_INDEX,
235 .extensions = "mlp",
236 .value = CODEC_ID_MLP,
237 };
238 #endif
239
240 #if CONFIG_TRUEHD_DEMUXER
241 AVInputFormat ff_truehd_demuxer = {
242 .name = "truehd",
243 .long_name = NULL_IF_CONFIG_SMALL("raw TrueHD"),
244 .read_header = ff_raw_audio_read_header,
245 .read_packet = ff_raw_read_partial_packet,
246 .flags= AVFMT_GENERIC_INDEX,
247 .extensions = "thd",
248 .value = CODEC_ID_TRUEHD,
249 };
250 #endif
251
252 #if CONFIG_SHORTEN_DEMUXER
253 AVInputFormat ff_shorten_demuxer = {
254 .name = "shn",
255 .long_name = NULL_IF_CONFIG_SMALL("raw Shorten"),
256 .read_header = ff_raw_audio_read_header,
257 .read_packet = ff_raw_read_partial_packet,
258 .flags= AVFMT_GENERIC_INDEX,
259 .extensions = "shn",
260 .value = CODEC_ID_SHORTEN,
261 };
262 #endif
263
264 #if CONFIG_VC1_DEMUXER
265 FF_DEF_RAWVIDEO_DEMUXER(vc1, "raw VC-1", NULL, "vc1", CODEC_ID_VC1)
266 #endif