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nested sequences mostly implemented

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This commit is contained in:
itsmattkc
2018-07-29 20:25:45 +01:00
parent 5862242111
commit 4700d02e6f
18 changed files with 215 additions and 107 deletions
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playback/cacher.cpp
+19 -9
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@@ -6,6 +6,7 @@
#include "playback/audio.h"
#include "playback/playback.h"
#include "effects/effects.h"
#include "panels/timeline.h"
extern "C" {
#include <libavformat/avformat.h>
@@ -26,9 +27,17 @@ void apply_audio_effects(Clip* c, AVFrame* frame, int nb_bytes) {
}
}
void cache_audio_worker(Clip* c) {
void cache_audio_worker(Clip* c, Clip* nest) {
int written = 0;
int max_write = 16384;
long timeline_in = c->timeline_in;
long timeline_out = c->timeline_out;
if (nest != NULL) {
timeline_in = refactor_frame_number(timeline_in, c->sequence->frame_rate, sequence->frame_rate) + nest->timeline_in;
timeline_out = refactor_frame_number(timeline_out, c->sequence->frame_rate, sequence->frame_rate) + nest->timeline_in;
}
while (written < max_write) {
// gets one frame worth of audio and sends it to the audio buffer
AVFrame* frame = c->cache_A.frames[0];
@@ -48,7 +57,7 @@ void cache_audio_worker(Clip* c) {
if (c->audio_just_reset) {
// get precise sample offset for the elected clip_in from this audio frame
float target_sts = 0;
if (c->audio_target_frame < c->timeline_in) {
if (c->audio_target_frame < timeline_in) {
target_sts = clip_frame_to_seconds(c, c->clip_in);
} else {
target_sts = playhead_to_seconds(c, c->audio_target_frame);
@@ -73,7 +82,7 @@ void cache_audio_worker(Clip* c) {
int half_buffer = (audio_ibuffer_size/2);
if (c->audio_buffer_write == 0) {
c->audio_buffer_write = get_buffer_offset_from_frame(qMax(c->timeline_in, c->audio_target_frame));
c->audio_buffer_write = get_buffer_offset_from_frame(qMax(timeline_in, c->audio_target_frame));
int offset = audio_ibuffer_read - c->audio_buffer_write;
if (offset > 0) {
c->audio_buffer_write += offset;
@@ -100,7 +109,7 @@ void cache_audio_worker(Clip* c) {
}
while (c->frame_sample_index < nb_bytes) {
if (c->audio_buffer_write >= audio_ibuffer_read+half_buffer || c->audio_buffer_write >= get_buffer_offset_from_frame(c->timeline_out)) {
if (c->audio_buffer_write >= audio_ibuffer_read+half_buffer || c->audio_buffer_write >= get_buffer_offset_from_frame(timeline_out)) {
written = max_write;
break;
} else {
@@ -110,6 +119,7 @@ void cache_audio_worker(Clip* c) {
qint16 new_sample = (qint16) ((frame->data[0][c->frame_sample_index+1] & 0xFF) << 8 | (frame->data[0][c->frame_sample_index] & 0xFF));
qint32 mixed_sample;
// peak handling
mixed_sample = old_sample + new_sample;
if (mixed_sample > INT16_MAX) {
mixed_sample = INT16_MAX;
@@ -329,7 +339,7 @@ void open_clip_worker(Clip* clip) {
clip->cache_A.frames[0]->sample_rate = clip->sequence->audio_frequency;
av_frame_make_writable(clip->cache_A.frames[0]);
clip->reset_audio = true;
clip->audio_reset = true;
}
clip->frame = av_frame_alloc();
@@ -339,11 +349,11 @@ void open_clip_worker(Clip* clip) {
qDebug() << "[INFO] Clip opened on track" << clip->track;
}
void cache_clip_worker(Clip* clip, long playhead, bool write_A, bool write_B, bool reset) {
void cache_clip_worker(Clip* clip, long playhead, bool write_A, bool write_B, bool reset, Clip* nest) {
if (reset) {
// note: for video, playhead is in "internal clip" frames - for audio, it's the timeline playhead
reset_cache(clip, playhead);
clip->reset_audio = false;
clip->audio_reset = false;
}
if (clip->stream->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
@@ -356,7 +366,7 @@ void cache_clip_worker(Clip* clip, long playhead, bool write_A, bool write_B, bo
cache_video_worker(clip, playhead, &clip->cache_B);
}
} else if (clip->stream->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
cache_audio_worker(clip);
cache_audio_worker(clip, nest);
}
}
@@ -401,7 +411,7 @@ void Cacher::run() {
if (!caching) {
break;
} else {
cache_clip_worker(clip, playhead, write_A, write_B, reset);
cache_clip_worker(clip, playhead, write_A, write_B, reset, nest);
}
}