Commit | Line | Data |
---|---|---|
2ba45a60 DM |
1 | #include <stdio.h> |
2 | #include <stdlib.h> | |
3 | #include <string.h> | |
4 | #include "libavutil/avassert.h" | |
5 | #include "libavdevice/avdevice.h" | |
6 | #include "libavfilter/avfilter.h" | |
7 | #include "libavfilter/buffersink.h" | |
8 | #include "libavformat/avformat.h" | |
9 | ||
10 | typedef struct { | |
11 | AVFormatContext *mux; | |
12 | AVStream *stream; | |
13 | AVFilterContext *sink; | |
14 | AVFilterLink *link; | |
15 | } Stream; | |
16 | ||
17 | static int create_sink(Stream *st, AVFilterGraph *graph, | |
18 | AVFilterContext *f, int idx) | |
19 | { | |
20 | enum AVMediaType type = avfilter_pad_get_type(f->output_pads, idx); | |
21 | const char *sink_name; | |
22 | int ret; | |
23 | ||
24 | switch (type) { | |
25 | case AVMEDIA_TYPE_VIDEO: sink_name = "buffersink"; break; | |
26 | case AVMEDIA_TYPE_AUDIO: sink_name = "abuffersink"; break; | |
27 | default: | |
28 | av_log(NULL, AV_LOG_ERROR, "Stream type not supported\n"); | |
29 | return AVERROR(EINVAL); | |
30 | } | |
31 | ret = avfilter_graph_create_filter(&st->sink, | |
32 | avfilter_get_by_name(sink_name), | |
33 | NULL, NULL, NULL, graph); | |
34 | if (ret < 0) | |
35 | return ret; | |
36 | ret = avfilter_link(f, idx, st->sink, 0); | |
37 | if (ret < 0) | |
38 | return ret; | |
39 | st->link = st->sink->inputs[0]; | |
40 | return 0; | |
41 | } | |
42 | ||
43 | int main(int argc, char **argv) | |
44 | { | |
45 | char *in_graph_desc, **out_dev_name; | |
46 | int nb_out_dev = 0, nb_streams = 0; | |
47 | AVFilterGraph *in_graph = NULL; | |
48 | Stream *streams = NULL, *st; | |
49 | AVFrame *frame = NULL; | |
50 | int i, j, run = 1, ret; | |
51 | ||
52 | //av_log_set_level(AV_LOG_DEBUG); | |
53 | ||
54 | if (argc < 3) { | |
55 | av_log(NULL, AV_LOG_ERROR, | |
56 | "Usage: %s filter_graph dev:out [dev2:out2...]\n\n" | |
57 | "Examples:\n" | |
58 | "%s movie=file.nut:s=v+a xv:- alsa:default\n" | |
59 | "%s movie=file.nut:s=v+a uncodedframecrc:pipe:0\n", | |
60 | argv[0], argv[0], argv[0]); | |
61 | exit(1); | |
62 | } | |
63 | in_graph_desc = argv[1]; | |
64 | out_dev_name = argv + 2; | |
65 | nb_out_dev = argc - 2; | |
66 | ||
67 | av_register_all(); | |
68 | avdevice_register_all(); | |
69 | avfilter_register_all(); | |
70 | ||
71 | /* Create input graph */ | |
72 | if (!(in_graph = avfilter_graph_alloc())) { | |
73 | ret = AVERROR(ENOMEM); | |
74 | av_log(NULL, AV_LOG_ERROR, "Unable to alloc graph graph: %s\n", | |
75 | av_err2str(ret)); | |
76 | goto fail; | |
77 | } | |
78 | ret = avfilter_graph_parse_ptr(in_graph, in_graph_desc, NULL, NULL, NULL); | |
79 | if (ret < 0) { | |
80 | av_log(NULL, AV_LOG_ERROR, "Unable to parse graph: %s\n", | |
81 | av_err2str(ret)); | |
82 | goto fail; | |
83 | } | |
84 | nb_streams = 0; | |
85 | for (i = 0; i < in_graph->nb_filters; i++) { | |
86 | AVFilterContext *f = in_graph->filters[i]; | |
87 | for (j = 0; j < f->nb_inputs; j++) { | |
88 | if (!f->inputs[j]) { | |
89 | av_log(NULL, AV_LOG_ERROR, "Graph has unconnected inputs\n"); | |
90 | ret = AVERROR(EINVAL); | |
91 | goto fail; | |
92 | } | |
93 | } | |
94 | for (j = 0; j < f->nb_outputs; j++) | |
95 | if (!f->outputs[j]) | |
96 | nb_streams++; | |
97 | } | |
98 | if (!nb_streams) { | |
99 | av_log(NULL, AV_LOG_ERROR, "Graph has no output stream\n"); | |
100 | ret = AVERROR(EINVAL); | |
101 | goto fail; | |
102 | } | |
103 | if (nb_out_dev != 1 && nb_out_dev != nb_streams) { | |
104 | av_log(NULL, AV_LOG_ERROR, | |
105 | "Graph has %d output streams, %d devices given\n", | |
106 | nb_streams, nb_out_dev); | |
107 | ret = AVERROR(EINVAL); | |
108 | goto fail; | |
109 | } | |
110 | ||
111 | if (!(streams = av_calloc(nb_streams, sizeof(*streams)))) { | |
112 | ret = AVERROR(ENOMEM); | |
113 | av_log(NULL, AV_LOG_ERROR, "Could not allocate streams\n"); | |
114 | } | |
115 | st = streams; | |
116 | for (i = 0; i < in_graph->nb_filters; i++) { | |
117 | AVFilterContext *f = in_graph->filters[i]; | |
118 | for (j = 0; j < f->nb_outputs; j++) { | |
119 | if (!f->outputs[j]) { | |
120 | if ((ret = create_sink(st++, in_graph, f, j)) < 0) | |
121 | goto fail; | |
122 | } | |
123 | } | |
124 | } | |
125 | av_assert0(st - streams == nb_streams); | |
126 | if ((ret = avfilter_graph_config(in_graph, NULL)) < 0) { | |
127 | av_log(NULL, AV_LOG_ERROR, "Failed to configure graph\n"); | |
128 | goto fail; | |
129 | } | |
130 | ||
131 | /* Create output devices */ | |
132 | for (i = 0; i < nb_out_dev; i++) { | |
133 | char *fmt = NULL, *dev = out_dev_name[i]; | |
134 | st = &streams[i]; | |
135 | if ((dev = strchr(dev, ':'))) { | |
136 | *(dev++) = 0; | |
137 | fmt = out_dev_name[i]; | |
138 | } | |
139 | ret = avformat_alloc_output_context2(&st->mux, NULL, fmt, dev); | |
140 | if (ret < 0) { | |
141 | av_log(NULL, AV_LOG_ERROR, "Failed to allocate output: %s\n", | |
142 | av_err2str(ret)); | |
143 | goto fail; | |
144 | } | |
145 | if (!(st->mux->oformat->flags & AVFMT_NOFILE)) { | |
146 | ret = avio_open2(&st->mux->pb, st->mux->filename, AVIO_FLAG_WRITE, | |
147 | NULL, NULL); | |
148 | if (ret < 0) { | |
149 | av_log(st->mux, AV_LOG_ERROR, "Failed to init output: %s\n", | |
150 | av_err2str(ret)); | |
151 | goto fail; | |
152 | } | |
153 | } | |
154 | } | |
155 | for (; i < nb_streams; i++) | |
156 | streams[i].mux = streams[0].mux; | |
157 | ||
158 | /* Create output device streams */ | |
159 | for (i = 0; i < nb_streams; i++) { | |
160 | st = &streams[i]; | |
161 | if (!(st->stream = avformat_new_stream(st->mux, NULL))) { | |
162 | ret = AVERROR(ENOMEM); | |
163 | av_log(NULL, AV_LOG_ERROR, "Failed to create output stream\n"); | |
164 | goto fail; | |
165 | } | |
166 | st->stream->codec->codec_type = st->link->type; | |
167 | st->stream->time_base = st->stream->codec->time_base = | |
168 | st->link->time_base; | |
169 | switch (st->link->type) { | |
170 | case AVMEDIA_TYPE_VIDEO: | |
171 | st->stream->codec->codec_id = AV_CODEC_ID_RAWVIDEO; | |
172 | st->stream->avg_frame_rate = | |
173 | st->stream-> r_frame_rate = av_buffersink_get_frame_rate(st->sink); | |
174 | st->stream->codec->width = st->link->w; | |
175 | st->stream->codec->height = st->link->h; | |
176 | st->stream->codec->sample_aspect_ratio = st->link->sample_aspect_ratio; | |
177 | st->stream->codec->pix_fmt = st->link->format; | |
178 | break; | |
179 | case AVMEDIA_TYPE_AUDIO: | |
180 | st->stream->codec->channel_layout = st->link->channel_layout; | |
181 | st->stream->codec->channels = avfilter_link_get_channels(st->link); | |
182 | st->stream->codec->sample_rate = st->link->sample_rate; | |
183 | st->stream->codec->sample_fmt = st->link->format; | |
184 | st->stream->codec->codec_id = | |
185 | av_get_pcm_codec(st->stream->codec->sample_fmt, -1); | |
186 | break; | |
187 | default: | |
188 | av_assert0(!"reached"); | |
189 | } | |
190 | } | |
191 | ||
192 | /* Init output devices */ | |
193 | for (i = 0; i < nb_out_dev; i++) { | |
194 | st = &streams[i]; | |
195 | if ((ret = avformat_write_header(st->mux, NULL)) < 0) { | |
196 | av_log(st->mux, AV_LOG_ERROR, "Failed to init output: %s\n", | |
197 | av_err2str(ret)); | |
198 | goto fail; | |
199 | } | |
200 | } | |
201 | ||
202 | /* Check output devices */ | |
203 | for (i = 0; i < nb_streams; i++) { | |
204 | st = &streams[i]; | |
205 | ret = av_write_uncoded_frame_query(st->mux, st->stream->index); | |
206 | if (ret < 0) { | |
207 | av_log(st->mux, AV_LOG_ERROR, | |
208 | "Uncoded frames not supported on stream #%d: %s\n", | |
209 | i, av_err2str(ret)); | |
210 | goto fail; | |
211 | } | |
212 | } | |
213 | ||
214 | while (run) { | |
215 | ret = avfilter_graph_request_oldest(in_graph); | |
216 | if (ret < 0) { | |
217 | if (ret == AVERROR_EOF) { | |
218 | run = 0; | |
219 | } else { | |
220 | av_log(NULL, AV_LOG_ERROR, "Error filtering: %s\n", | |
221 | av_err2str(ret)); | |
222 | break; | |
223 | } | |
224 | } | |
225 | for (i = 0; i < nb_streams; i++) { | |
226 | st = &streams[i]; | |
227 | while (1) { | |
228 | if (!frame && !(frame = av_frame_alloc())) { | |
229 | ret = AVERROR(ENOMEM); | |
230 | av_log(NULL, AV_LOG_ERROR, "Could not allocate frame\n"); | |
231 | goto fail; | |
232 | } | |
233 | ret = av_buffersink_get_frame_flags(st->sink, frame, | |
234 | AV_BUFFERSINK_FLAG_NO_REQUEST); | |
235 | if (ret < 0) { | |
236 | if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) | |
237 | av_log(NULL, AV_LOG_WARNING, "Error in sink: %s\n", | |
238 | av_err2str(ret)); | |
239 | break; | |
240 | } | |
241 | if (frame->pts != AV_NOPTS_VALUE) | |
242 | frame->pts = av_rescale_q(frame->pts, | |
243 | st->link ->time_base, | |
244 | st->stream->time_base); | |
245 | ret = av_interleaved_write_uncoded_frame(st->mux, | |
246 | st->stream->index, | |
247 | frame); | |
248 | frame = NULL; | |
249 | if (ret < 0) { | |
250 | av_log(st->stream->codec, AV_LOG_ERROR, | |
251 | "Error writing frame: %s\n", av_err2str(ret)); | |
252 | goto fail; | |
253 | } | |
254 | } | |
255 | } | |
256 | } | |
257 | ret = 0; | |
258 | ||
259 | for (i = 0; i < nb_out_dev; i++) { | |
260 | st = &streams[i]; | |
261 | av_write_trailer(st->mux); | |
262 | } | |
263 | ||
264 | fail: | |
265 | av_frame_free(&frame); | |
266 | avfilter_graph_free(&in_graph); | |
267 | if (streams) { | |
268 | for (i = 0; i < nb_out_dev; i++) { | |
269 | st = &streams[i]; | |
270 | if (st->mux) { | |
271 | if (st->mux->pb) | |
272 | avio_close(st->mux->pb); | |
273 | avformat_free_context(st->mux); | |
274 | } | |
275 | } | |
276 | } | |
277 | av_freep(&streams); | |
278 | return ret < 0; | |
279 | } |