chasing indexing error

1 files changed, 0 insertions, 347 deletions

diff --git a/ffmpeg/libavdevice/jack_audio.c b/ffmpeg/libavdevice/jack_audio.c
deleted file mode 100644
index 5ba6731..0000000
--- a/ffmpeg/libavdevice/jack_audio.c
+++ /dev/null
@@ -1,347 +0,0 @@
-/*
- * JACK Audio Connection Kit input device
- * Copyright (c) 2009 Samalyse
- * Author: Olivier Guilyardi <olivier samalyse com>
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg 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.
- *
- * FFmpeg 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 FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include "config.h"
-#include <semaphore.h>
-#include <jack/jack.h>
-
-#include "libavutil/log.h"
-#include "libavutil/fifo.h"
-#include "libavutil/opt.h"
-#include "libavutil/time.h"
-#include "libavcodec/avcodec.h"
-#include "libavformat/avformat.h"
-#include "libavformat/internal.h"
-#include "timefilter.h"
-#include "avdevice.h"
-
-/**
- * Size of the internal FIFO buffers as a number of audio packets
- */
-#define FIFO_PACKETS_NUM 16
-
-typedef struct {
-    AVClass        *class;
-    jack_client_t * client;
-    int             activated;
-    sem_t           packet_count;
-    jack_nframes_t  sample_rate;
-    jack_nframes_t  buffer_size;
-    jack_port_t **  ports;
-    int             nports;
-    TimeFilter *    timefilter;
-    AVFifoBuffer *  new_pkts;
-    AVFifoBuffer *  filled_pkts;
-    int             pkt_xrun;
-    int             jack_xrun;
-} JackData;
-
-static int process_callback(jack_nframes_t nframes, void *arg)
-{
-    /* Warning: this function runs in realtime. One mustn't allocate memory here
-     * or do any other thing that could block. */
-
-    int i, j;
-    JackData *self = arg;
-    float * buffer;
-    jack_nframes_t latency, cycle_delay;
-    AVPacket pkt;
-    float *pkt_data;
-    double cycle_time;
-
-    if (!self->client)
-        return 0;
-
-    /* The approximate delay since the hardware interrupt as a number of frames */
-    cycle_delay = jack_frames_since_cycle_start(self->client);
-
-    /* Retrieve filtered cycle time */
-    cycle_time = ff_timefilter_update(self->timefilter,
-                                      av_gettime() / 1000000.0 - (double) cycle_delay / self->sample_rate,
-                                      self->buffer_size);
-
-    /* Check if an empty packet is available, and if there's enough space to send it back once filled */
-    if ((av_fifo_size(self->new_pkts) < sizeof(pkt)) || (av_fifo_space(self->filled_pkts) < sizeof(pkt))) {
-        self->pkt_xrun = 1;
-        return 0;
-    }
-
-    /* Retrieve empty (but allocated) packet */
-    av_fifo_generic_read(self->new_pkts, &pkt, sizeof(pkt), NULL);
-
-    pkt_data  = (float *) pkt.data;
-    latency   = 0;
-
-    /* Copy and interleave audio data from the JACK buffer into the packet */
-    for (i = 0; i < self->nports; i++) {
-    #if HAVE_JACK_PORT_GET_LATENCY_RANGE
-        jack_latency_range_t range;
-        jack_port_get_latency_range(self->ports[i], JackCaptureLatency, &range);
-        latency += range.max;
-    #else
-        latency += jack_port_get_total_latency(self->client, self->ports[i]);
-    #endif
-        buffer = jack_port_get_buffer(self->ports[i], self->buffer_size);
-        for (j = 0; j < self->buffer_size; j++)
-            pkt_data[j * self->nports + i] = buffer[j];
-    }
-
-    /* Timestamp the packet with the cycle start time minus the average latency */
-    pkt.pts = (cycle_time - (double) latency / (self->nports * self->sample_rate)) * 1000000.0;
-
-    /* Send the now filled packet back, and increase packet counter */
-    av_fifo_generic_write(self->filled_pkts, &pkt, sizeof(pkt), NULL);
-    sem_post(&self->packet_count);
-
-    return 0;
-}
-
-static void shutdown_callback(void *arg)
-{
-    JackData *self = arg;
-    self->client = NULL;
-}
-
-static int xrun_callback(void *arg)
-{
-    JackData *self = arg;
-    self->jack_xrun = 1;
-    ff_timefilter_reset(self->timefilter);
-    return 0;
-}
-
-static int supply_new_packets(JackData *self, AVFormatContext *context)
-{
-    AVPacket pkt;
-    int test, pkt_size = self->buffer_size * self->nports * sizeof(float);
-
-    /* Supply the process callback with new empty packets, by filling the new
-     * packets FIFO buffer with as many packets as possible. process_callback()
-     * can't do this by itself, because it can't allocate memory in realtime. */
-    while (av_fifo_space(self->new_pkts) >= sizeof(pkt)) {
-        if ((test = av_new_packet(&pkt, pkt_size)) < 0) {
-            av_log(context, AV_LOG_ERROR, "Could not create packet of size %d\n", pkt_size);
-            return test;
-        }
-        av_fifo_generic_write(self->new_pkts, &pkt, sizeof(pkt), NULL);
-    }
-    return 0;
-}
-
-static int start_jack(AVFormatContext *context)
-{
-    JackData *self = context->priv_data;
-    jack_status_t status;
-    int i, test;
-
-    /* Register as a JACK client, using the context filename as client name. */
-    self->client = jack_client_open(context->filename, JackNullOption, &status);
-    if (!self->client) {
-        av_log(context, AV_LOG_ERROR, "Unable to register as a JACK client\n");
-        return AVERROR(EIO);
-    }
-
-    sem_init(&self->packet_count, 0, 0);
-
-    self->sample_rate = jack_get_sample_rate(self->client);
-    self->ports       = av_malloc(self->nports * sizeof(*self->ports));
-    self->buffer_size = jack_get_buffer_size(self->client);
-
-    /* Register JACK ports */
-    for (i = 0; i < self->nports; i++) {
-        char str[16];
-        snprintf(str, sizeof(str), "input_%d", i + 1);
-        self->ports[i] = jack_port_register(self->client, str,
-                                            JACK_DEFAULT_AUDIO_TYPE,
-                                            JackPortIsInput, 0);
-        if (!self->ports[i]) {
-            av_log(context, AV_LOG_ERROR, "Unable to register port %s:%s\n",
-                   context->filename, str);
-            jack_client_close(self->client);
-            return AVERROR(EIO);
-        }
-    }
-
-    /* Register JACK callbacks */
-    jack_set_process_callback(self->client, process_callback, self);
-    jack_on_shutdown(self->client, shutdown_callback, self);
-    jack_set_xrun_callback(self->client, xrun_callback, self);
-
-    /* Create time filter */
-    self->timefilter  = ff_timefilter_new (1.0 / self->sample_rate, self->buffer_size, 1.5);
-    if (!self->timefilter) {
-        jack_client_close(self->client);
-        return AVERROR(ENOMEM);
-    }
-
-    /* Create FIFO buffers */
-    self->filled_pkts = av_fifo_alloc(FIFO_PACKETS_NUM * sizeof(AVPacket));
-    /* New packets FIFO with one extra packet for safety against underruns */
-    self->new_pkts    = av_fifo_alloc((FIFO_PACKETS_NUM + 1) * sizeof(AVPacket));
-    if ((test = supply_new_packets(self, context))) {
-        jack_client_close(self->client);
-        return test;
-    }
-
-    return 0;
-
-}
-
-static void free_pkt_fifo(AVFifoBuffer *fifo)
-{
-    AVPacket pkt;
-    while (av_fifo_size(fifo)) {
-        av_fifo_generic_read(fifo, &pkt, sizeof(pkt), NULL);
-        av_free_packet(&pkt);
-    }
-    av_fifo_free(fifo);
-}
-
-static void stop_jack(JackData *self)
-{
-    if (self->client) {
-        if (self->activated)
-            jack_deactivate(self->client);
-        jack_client_close(self->client);
-    }
-    sem_destroy(&self->packet_count);
-    free_pkt_fifo(self->new_pkts);
-    free_pkt_fifo(self->filled_pkts);
-    av_freep(&self->ports);
-    ff_timefilter_destroy(self->timefilter);
-}
-
-static int audio_read_header(AVFormatContext *context)
-{
-    JackData *self = context->priv_data;
-    AVStream *stream;
-    int test;
-
-    if ((test = start_jack(context)))
-        return test;
-
-    stream = avformat_new_stream(context, NULL);
-    if (!stream) {
-        stop_jack(self);
-        return AVERROR(ENOMEM);
-    }
-
-    stream->codec->codec_type   = AVMEDIA_TYPE_AUDIO;
-#if HAVE_BIGENDIAN
-    stream->codec->codec_id     = AV_CODEC_ID_PCM_F32BE;
-#else
-    stream->codec->codec_id     = AV_CODEC_ID_PCM_F32LE;
-#endif
-    stream->codec->sample_rate  = self->sample_rate;
-    stream->codec->channels     = self->nports;
-
-    avpriv_set_pts_info(stream, 64, 1, 1000000);  /* 64 bits pts in us */
-    return 0;
-}
-
-static int audio_read_packet(AVFormatContext *context, AVPacket *pkt)
-{
-    JackData *self = context->priv_data;
-    struct timespec timeout = {0, 0};
-    int test;
-
-    /* Activate the JACK client on first packet read. Activating the JACK client
-     * means that process_callback() starts to get called at regular interval.
-     * If we activate it in audio_read_header(), we're actually reading audio data
-     * from the device before instructed to, and that may result in an overrun. */
-    if (!self->activated) {
-        if (!jack_activate(self->client)) {
-            self->activated = 1;
-            av_log(context, AV_LOG_INFO,
-                   "JACK client registered and activated (rate=%dHz, buffer_size=%d frames)\n",
-                   self->sample_rate, self->buffer_size);
-        } else {
-            av_log(context, AV_LOG_ERROR, "Unable to activate JACK client\n");
-            return AVERROR(EIO);
-        }
-    }
-
-    /* Wait for a packet coming back from process_callback(), if one isn't available yet */
-    timeout.tv_sec = av_gettime() / 1000000 + 2;
-    if (sem_timedwait(&self->packet_count, &timeout)) {
-        if (errno == ETIMEDOUT) {
-            av_log(context, AV_LOG_ERROR,
-                   "Input error: timed out when waiting for JACK process callback output\n");
-        } else {
-            av_log(context, AV_LOG_ERROR, "Error while waiting for audio packet: %s\n",
-                   strerror(errno));
-        }
-        if (!self->client)
-            av_log(context, AV_LOG_ERROR, "Input error: JACK server is gone\n");
-
-        return AVERROR(EIO);
-    }
-
-    if (self->pkt_xrun) {
-        av_log(context, AV_LOG_WARNING, "Audio packet xrun\n");
-        self->pkt_xrun = 0;
-    }
-
-    if (self->jack_xrun) {
-        av_log(context, AV_LOG_WARNING, "JACK xrun\n");
-        self->jack_xrun = 0;
-    }
-
-    /* Retrieve the packet filled with audio data by process_callback() */
-    av_fifo_generic_read(self->filled_pkts, pkt, sizeof(*pkt), NULL);
-
-    if ((test = supply_new_packets(self, context)))
-        return test;
-
-    return 0;
-}
-
-static int audio_read_close(AVFormatContext *context)
-{
-    JackData *self = context->priv_data;
-    stop_jack(self);
-    return 0;
-}
-
-#define OFFSET(x) offsetof(JackData, x)
-static const AVOption options[] = {
-    { "channels", "Number of audio channels.", OFFSET(nports), AV_OPT_TYPE_INT, { .i64 = 2 }, 1, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
-    { NULL },
-};
-
-static const AVClass jack_indev_class = {
-    .class_name     = "JACK indev",
-    .item_name      = av_default_item_name,
-    .option         = options,
-    .version        = LIBAVUTIL_VERSION_INT,
-};
-
-AVInputFormat ff_jack_demuxer = {
-    .name           = "jack",
-    .long_name      = NULL_IF_CONFIG_SMALL("JACK Audio Connection Kit"),
-    .priv_data_size = sizeof(JackData),
-    .read_header    = audio_read_header,
-    .read_packet    = audio_read_packet,
-    .read_close     = audio_read_close,
-    .flags          = AVFMT_NOFILE,
-    .priv_class     = &jack_indev_class,
-};