From 10627e7e10f78951ea6edc0f5cf35387043fc448 Mon Sep 17 00:00:00 2001 From: Lukasz Marek Date: Fri, 18 Apr 2014 01:10:20 +0200 Subject: lavd/pulse_audio_enc: cosmetics --- libavdevice/pulse_audio_enc.c | 67 ++++++++++++++++++++++--------------------- 1 file changed, 35 insertions(+), 32 deletions(-) diff --git a/libavdevice/pulse_audio_enc.c b/libavdevice/pulse_audio_enc.c index fa2a7cb0c5..885a1fb15a 100644 --- a/libavdevice/pulse_audio_enc.c +++ b/libavdevice/pulse_audio_enc.c @@ -35,8 +35,8 @@ typedef struct PulseData { const char *device; pa_simple *pa; int64_t timestamp; - int buffer_size; - int buffer_duration; + int buffer_size; /**< Buffer size in bytes */ + int buffer_duration; /**< Buffer size in ms, recalculated to buffer_size */ } PulseData; static av_cold int pulse_write_header(AVFormatContext *h) @@ -44,8 +44,8 @@ static av_cold int pulse_write_header(AVFormatContext *h) PulseData *s = h->priv_data; AVStream *st = NULL; int ret; - pa_sample_spec ss; - pa_buffer_attr attr = { -1, -1, -1, -1, -1 }; + pa_sample_spec sample_spec; + pa_buffer_attr buffer_attributes = { -1, -1, -1, -1, -1 }; const char *stream_name = s->stream_name; if (h->nb_streams != 1 || h->streams[0]->codec->codec_type != AVMEDIA_TYPE_AUDIO) { @@ -66,26 +66,30 @@ static av_cold int pulse_write_header(AVFormatContext *h) bytes *= st->codec->channels * st->codec->sample_rate * av_get_bytes_per_sample(st->codec->sample_fmt); bytes /= 1000; - attr.tlength = FFMAX(s->buffer_size, av_clip64(bytes, 0, UINT32_MAX - 1)); + buffer_attributes.tlength = FFMAX(s->buffer_size, av_clip64(bytes, 0, UINT32_MAX - 1)); av_log(s, AV_LOG_DEBUG, "Buffer duration: %ums recalculated into %"PRId64" bytes buffer.\n", s->buffer_duration, bytes); - av_log(s, AV_LOG_DEBUG, "Real buffer length is %u bytes\n", attr.tlength); + av_log(s, AV_LOG_DEBUG, "Real buffer length is %u bytes\n", buffer_attributes.tlength); } else if (s->buffer_size) - attr.tlength = s->buffer_size; + buffer_attributes.tlength = s->buffer_size; - ss.format = ff_codec_id_to_pulse_format(st->codec->codec_id); - ss.rate = st->codec->sample_rate; - ss.channels = st->codec->channels; + sample_spec.format = ff_codec_id_to_pulse_format(st->codec->codec_id); + sample_spec.rate = st->codec->sample_rate; + sample_spec.channels = st->codec->channels; + if (!pa_sample_spec_valid(&sample_spec)) { + av_log(s, AV_LOG_ERROR, "Invalid sample spec.\n"); + return AVERROR(EINVAL); + } s->pa = pa_simple_new(s->server, // Server s->name, // Application name PA_STREAM_PLAYBACK, s->device, // Device stream_name, // Description of a stream - &ss, // Sample format + &sample_spec, // Sample format NULL, // Use default channel map - &attr, // Buffering attributes + &buffer_attributes, // Buffering attributes &ret); // Result if (!s->pa) { @@ -175,19 +179,18 @@ static int pulse_get_device_list(AVFormatContext *h, AVDeviceInfoList *device_li #define OFFSET(a) offsetof(PulseData, a) #define E AV_OPT_FLAG_ENCODING_PARAM - static const AVOption options[] = { - { "server", "set PulseAudio server", OFFSET(server), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E }, - { "name", "set application name", OFFSET(name), AV_OPT_TYPE_STRING, {.str = LIBAVFORMAT_IDENT}, 0, 0, E }, - { "stream_name", "set stream description", OFFSET(stream_name), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E }, - { "device", "set device name", OFFSET(device), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E }, - { "buffer_size", "set buffer size in bytes", OFFSET(buffer_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E }, - { "buffer_duration", "set buffer duration in millisecs", OFFSET(buffer_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E }, + { "server", "set PulseAudio server", OFFSET(server), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E }, + { "name", "set application name", OFFSET(name), AV_OPT_TYPE_STRING, {.str = LIBAVFORMAT_IDENT}, 0, 0, E }, + { "stream_name", "set stream description", OFFSET(stream_name), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E }, + { "device", "set device name", OFFSET(device), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E }, + { "buffer_size", "set buffer size in bytes", OFFSET(buffer_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E }, + { "buffer_duration", "set buffer duration in millisecs", OFFSET(buffer_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E }, { NULL } }; static const AVClass pulse_muxer_class = { - .class_name = "Pulse muxer", + .class_name = "PulseAudio muxer", .item_name = av_default_item_name, .option = options, .version = LIBAVUTIL_VERSION_INT, @@ -195,17 +198,17 @@ static const AVClass pulse_muxer_class = { }; AVOutputFormat ff_pulse_muxer = { - .name = "pulse", - .long_name = NULL_IF_CONFIG_SMALL("Pulse audio output"), - .priv_data_size = sizeof(PulseData), - .audio_codec = AV_NE(AV_CODEC_ID_PCM_S16BE, AV_CODEC_ID_PCM_S16LE), - .video_codec = AV_CODEC_ID_NONE, - .write_header = pulse_write_header, - .write_packet = pulse_write_packet, - .write_uncoded_frame = pulse_write_frame, - .write_trailer = pulse_write_trailer, + .name = "pulse", + .long_name = NULL_IF_CONFIG_SMALL("Pulse audio output"), + .priv_data_size = sizeof(PulseData), + .audio_codec = AV_NE(AV_CODEC_ID_PCM_S16BE, AV_CODEC_ID_PCM_S16LE), + .video_codec = AV_CODEC_ID_NONE, + .write_header = pulse_write_header, + .write_packet = pulse_write_packet, + .write_uncoded_frame = pulse_write_frame, + .write_trailer = pulse_write_trailer, .get_output_timestamp = pulse_get_output_timestamp, - .get_device_list = pulse_get_device_list, - .flags = AVFMT_NOFILE | AVFMT_ALLOW_FLUSH, - .priv_class = &pulse_muxer_class, + .get_device_list = pulse_get_device_list, + .flags = AVFMT_NOFILE | AVFMT_ALLOW_FLUSH, + .priv_class = &pulse_muxer_class, }; 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