mirror of
https://github.com/mpv-player/mpv
synced 2024-12-23 23:32:26 +00:00
6903319c66
Make stream_ffmpeg handle rtsp:// URLs by default, without requiring ffmpeg://rtsp://. Previously (after removal of other rtsp implementations) rtsp:// fell back to using HTTP, which was unlikely to work. Also add lavf:// as an alternative to ffmpeg:// to force the stream implementation. Since libavformat can come from Libav rather than FFmpeg, using the ffmpeg name in the prefix is misleading.
171 lines
4.6 KiB
C
171 lines
4.6 KiB
C
/*
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* This file is part of MPlayer.
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*
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* MPlayer is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* MPlayer is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include "libavformat/avformat.h"
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#include "libavformat/avio.h"
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#include "mp_msg.h"
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#include "stream.h"
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#include "m_option.h"
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#include "m_struct.h"
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#include "libmpdemux/demuxer.h"
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static int fill_buffer(stream_t *s, char *buffer, int max_len)
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{
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AVIOContext *avio = s->priv;
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int r = avio_read(avio, buffer, max_len);
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return (r <= 0) ? -1 : r;
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}
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static int write_buffer(stream_t *s, char *buffer, int len)
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{
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AVIOContext *avio = s->priv;
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avio_write(avio, buffer, len);
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avio_flush(avio);
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if (avio->error)
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return -1;
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return len;
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}
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static int seek(stream_t *s, off_t newpos)
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{
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AVIOContext *avio = s->priv;
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s->pos = newpos;
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if (avio_seek(avio, s->pos, SEEK_SET) < 0) {
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s->eof = 1;
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return 0;
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}
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return 1;
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}
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static int control(stream_t *s, int cmd, void *arg)
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{
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AVIOContext *avio = s->priv;
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int64_t size, ts;
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double pts;
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switch(cmd) {
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case STREAM_CTRL_GET_SIZE:
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size = avio_size(avio);
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if(size >= 0) {
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*(off_t *)arg = size;
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return 1;
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}
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break;
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case STREAM_CTRL_SEEK_TO_TIME:
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pts = *(double *)arg;
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ts = pts * AV_TIME_BASE;
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ts = avio_seek_time(avio, -1, ts, 0);
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if (ts >= 0)
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return 1;
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break;
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}
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return STREAM_UNSUPPORTED;
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}
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static void close_f(stream_t *stream)
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{
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AVIOContext *avio = stream->priv;
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/* NOTE: As of 2011 write streams must be manually flushed before close.
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* Currently write_buffer() always flushes them after writing.
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* avio_close() could return an error, but we have no way to return that
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* with the current stream API.
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*/
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avio_close(avio);
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}
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static const char * const prefix[] = { "lavf://", "ffmpeg://" };
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static int open_f(stream_t *stream, int mode, void *opts, int *file_format)
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{
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int flags = 0;
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const char *filename;
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AVIOContext *avio = NULL;
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int res = STREAM_ERROR;
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if (mode == STREAM_READ)
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flags = AVIO_FLAG_READ;
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else if (mode == STREAM_WRITE)
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flags = AVIO_FLAG_WRITE;
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else {
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mp_msg(MSGT_OPEN, MSGL_ERR, "[ffmpeg] Unknown open mode %d\n", mode);
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res = STREAM_UNSUPPORTED;
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goto out;
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}
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if (stream->url)
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filename = stream->url;
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else {
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mp_msg(MSGT_OPEN, MSGL_ERR, "[ffmpeg] No URL\n");
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goto out;
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}
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for (int i = 0; i < sizeof(prefix) / sizeof(prefix[0]); i++)
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if (!strncmp(filename, prefix[i], strlen(prefix[i])))
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filename += strlen(prefix[i]);
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if (!strncmp(filename, "rtsp:", 5)) {
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/* This is handled as a special demuxer, without a separate
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* stream layer. demux_lavf will do all the real work.
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*/
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stream->type = STREAMTYPE_STREAM;
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stream->seek = NULL;
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*file_format = DEMUXER_TYPE_LAVF;
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stream->lavf_type = "rtsp";
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return STREAM_OK;
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}
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mp_msg(MSGT_OPEN, MSGL_V, "[ffmpeg] Opening %s\n", filename);
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if (avio_open(&avio, filename, flags) < 0)
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goto out;
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char *rtmp[] = {"rtmp:", "rtmpt:", "rtmpe:", "rtmpte:", "rtmps:"};
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for (int i = 0; i < FF_ARRAY_ELEMS(rtmp); i++)
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if (!strncmp(filename, rtmp[i], strlen(rtmp[i]))) {
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*file_format = DEMUXER_TYPE_LAVF;
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stream->lavf_type = "flv";
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}
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stream->priv = avio;
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int64_t size = avio_size(avio);
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if (size >= 0)
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stream->end_pos = size;
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stream->type = STREAMTYPE_FILE;
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stream->seek = seek;
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if (!avio->seekable) {
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stream->type = STREAMTYPE_STREAM;
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stream->seek = NULL;
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}
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stream->fill_buffer = fill_buffer;
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stream->write_buffer = write_buffer;
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stream->control = control;
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stream->close = close_f;
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res = STREAM_OK;
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out:
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return res;
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}
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const stream_info_t stream_info_ffmpeg = {
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"FFmpeg",
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"ffmpeg",
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"",
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"",
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open_f,
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{ "lavf", "ffmpeg", "rtmp", "rtsp", NULL },
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NULL,
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1 // Urls are an option string
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};
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