diff options
author | Diego Biurrun <diego@biurrun.de> | 2015-03-27 12:40:23 +0100 |
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committer | Diego Biurrun <diego@biurrun.de> | 2015-04-09 16:40:12 +0200 |
commit | 8d26c193fb42d08602ac93ece039d4718d029adc (patch) | |
tree | ced4ff3f94794ab9ca513dd67cedd4519ffeb591 /libavdevice/alsa-audio-enc.c | |
parent | c201069fac9a76e6604f9d84d76a172434d62200 (diff) |
avdevice: Apply a more consistent file naming scheme
Diffstat (limited to 'libavdevice/alsa-audio-enc.c')
-rw-r--r-- | libavdevice/alsa-audio-enc.c | 117 |
1 files changed, 0 insertions, 117 deletions
diff --git a/libavdevice/alsa-audio-enc.c b/libavdevice/alsa-audio-enc.c deleted file mode 100644 index db4f5e426f..0000000000 --- a/libavdevice/alsa-audio-enc.c +++ /dev/null @@ -1,117 +0,0 @@ -/* - * ALSA input and output - * Copyright (c) 2007 Luca Abeni ( lucabe72 email it ) - * Copyright (c) 2007 Benoit Fouet ( benoit fouet free fr ) - * - * This file is part of Libav. - * - * Libav is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * Libav is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with Libav; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -/** - * @file - * ALSA input and output: output - * @author Luca Abeni ( lucabe72 email it ) - * @author Benoit Fouet ( benoit fouet free fr ) - * - * This avdevice encoder allows to play audio to an ALSA (Advanced Linux - * Sound Architecture) device. - * - * The filename parameter is the name of an ALSA PCM device capable of - * capture, for example "default" or "plughw:1"; see the ALSA documentation - * for naming conventions. The empty string is equivalent to "default". - * - * The playback period is set to the lower value available for the device, - * which gives a low latency suitable for real-time playback. - */ - -#include <alsa/asoundlib.h> - -#include "libavutil/internal.h" - -#include "libavformat/avformat.h" - -#include "alsa-audio.h" - -static av_cold int audio_write_header(AVFormatContext *s1) -{ - AlsaData *s = s1->priv_data; - AVStream *st; - unsigned int sample_rate; - enum AVCodecID codec_id; - int res; - - st = s1->streams[0]; - sample_rate = st->codec->sample_rate; - codec_id = st->codec->codec_id; - res = ff_alsa_open(s1, SND_PCM_STREAM_PLAYBACK, &sample_rate, - st->codec->channels, &codec_id); - if (sample_rate != st->codec->sample_rate) { - av_log(s1, AV_LOG_ERROR, - "sample rate %d not available, nearest is %d\n", - st->codec->sample_rate, sample_rate); - goto fail; - } - - return res; - -fail: - snd_pcm_close(s->h); - return AVERROR(EIO); -} - -static int audio_write_packet(AVFormatContext *s1, AVPacket *pkt) -{ - AlsaData *s = s1->priv_data; - int res; - int size = pkt->size; - uint8_t *buf = pkt->data; - - size /= s->frame_size; - if (s->reorder_func) { - if (size > s->reorder_buf_size) - if (ff_alsa_extend_reorder_buf(s, size)) - return AVERROR(ENOMEM); - s->reorder_func(buf, s->reorder_buf, size); - buf = s->reorder_buf; - } - while ((res = snd_pcm_writei(s->h, buf, size)) < 0) { - if (res == -EAGAIN) { - - return AVERROR(EAGAIN); - } - - if (ff_alsa_xrun_recover(s1, res) < 0) { - av_log(s1, AV_LOG_ERROR, "ALSA write error: %s\n", - snd_strerror(res)); - - return AVERROR(EIO); - } - } - - return 0; -} - -AVOutputFormat ff_alsa_muxer = { - .name = "alsa", - .long_name = NULL_IF_CONFIG_SMALL("ALSA audio output"), - .priv_data_size = sizeof(AlsaData), - .audio_codec = DEFAULT_CODEC_ID, - .video_codec = AV_CODEC_ID_NONE, - .write_header = audio_write_header, - .write_packet = audio_write_packet, - .write_trailer = ff_alsa_close, - .flags = AVFMT_NOFILE, -}; |