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path: root/drivers/media/test-drivers/vidtv/vidtv_s302m.c
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Diffstat (limited to 'drivers/media/test-drivers/vidtv/vidtv_s302m.c')
-rw-r--r--drivers/media/test-drivers/vidtv/vidtv_s302m.c127
1 files changed, 70 insertions, 57 deletions
diff --git a/drivers/media/test-drivers/vidtv/vidtv_s302m.c b/drivers/media/test-drivers/vidtv/vidtv_s302m.c
index a447ccbd68d5..d79b65854627 100644
--- a/drivers/media/test-drivers/vidtv/vidtv_s302m.c
+++ b/drivers/media/test-drivers/vidtv/vidtv_s302m.c
@@ -17,23 +17,22 @@
#define pr_fmt(fmt) KBUILD_MODNAME ":%s, %d: " fmt, __func__, __LINE__
-#include <linux/types.h>
-#include <linux/slab.h>
+#include <linux/bug.h>
#include <linux/crc32.h>
-#include <linux/vmalloc.h>
-#include <linux/string.h>
-#include <linux/kernel.h>
+#include <linux/fixp-arith.h>
#include <linux/jiffies.h>
+#include <linux/kernel.h>
+#include <linux/math64.h>
#include <linux/printk.h>
#include <linux/ratelimit.h>
-#include <linux/fixp-arith.h>
-
-#include <linux/math64.h>
-#include <asm/byteorder.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/vmalloc.h>
-#include "vidtv_s302m.h"
-#include "vidtv_encoder.h"
#include "vidtv_common.h"
+#include "vidtv_encoder.h"
+#include "vidtv_s302m.h"
#define S302M_SAMPLING_RATE_HZ 48000
#define PES_PRIVATE_STREAM_1 0xbd /* PES: private_stream_1 */
@@ -79,8 +78,9 @@ struct tone_duration {
int duration;
};
-#define COMPASS 120 /* beats per minute (Allegro) */
-static const struct tone_duration beethoven_5th_symphony[] = {
+#define COMPASS 100 /* beats per minute */
+static const struct tone_duration beethoven_fur_elise[] = {
+ { NOTE_SILENT, 512},
{ NOTE_E_6, 128}, { NOTE_DS_6, 128}, { NOTE_E_6, 128},
{ NOTE_DS_6, 128}, { NOTE_E_6, 128}, { NOTE_B_5, 128},
{ NOTE_D_6, 128}, { NOTE_C_6, 128}, { NOTE_A_3, 128},
@@ -121,31 +121,36 @@ static const struct tone_duration beethoven_5th_symphony[] = {
{ NOTE_E_5, 128}, { NOTE_D_5, 128}, { NOTE_A_3, 128},
{ NOTE_E_4, 128}, { NOTE_A_4, 128}, { NOTE_E_4, 128},
{ NOTE_D_5, 128}, { NOTE_C_5, 128}, { NOTE_E_3, 128},
- { NOTE_E_4, 128}, { NOTE_E_5, 255}, { NOTE_E_6, 128},
- { NOTE_E_5, 128}, { NOTE_E_6, 128}, { NOTE_E_5, 255},
+ { NOTE_E_4, 128}, { NOTE_E_5, 128}, { NOTE_E_5, 128},
+ { NOTE_E_6, 128}, { NOTE_E_5, 128}, { NOTE_E_6, 128},
+ { NOTE_E_5, 128}, { NOTE_E_5, 128}, { NOTE_DS_5, 128},
+ { NOTE_E_5, 128}, { NOTE_DS_6, 128}, { NOTE_E_6, 128},
{ NOTE_DS_5, 128}, { NOTE_E_5, 128}, { NOTE_DS_6, 128},
- { NOTE_E_6, 128}, { NOTE_DS_5, 128}, { NOTE_E_5, 128},
- { NOTE_DS_6, 128}, { NOTE_E_6, 128}, { NOTE_DS_6, 128},
{ NOTE_E_6, 128}, { NOTE_DS_6, 128}, { NOTE_E_6, 128},
- { NOTE_B_5, 128}, { NOTE_D_6, 128}, { NOTE_C_6, 128},
- { NOTE_A_3, 128}, { NOTE_E_4, 128}, { NOTE_A_4, 128},
- { NOTE_C_5, 128}, { NOTE_E_5, 128}, { NOTE_A_5, 128},
- { NOTE_E_3, 128}, { NOTE_E_4, 128}, { NOTE_GS_4, 128},
- { NOTE_E_5, 128}, { NOTE_GS_5, 128}, { NOTE_B_5, 128},
- { NOTE_A_3, 128}, { NOTE_E_4, 128}, { NOTE_A_4, 128},
- { NOTE_E_5, 128}, { NOTE_E_6, 128}, { NOTE_DS_6, 128},
+ { NOTE_DS_6, 128}, { NOTE_E_6, 128}, { NOTE_B_5, 128},
+ { NOTE_D_6, 128}, { NOTE_C_6, 128}, { NOTE_A_3, 128},
+ { NOTE_E_4, 128}, { NOTE_A_4, 128}, { NOTE_C_5, 128},
+ { NOTE_E_5, 128}, { NOTE_A_5, 128}, { NOTE_E_3, 128},
+ { NOTE_E_4, 128}, { NOTE_GS_4, 128}, { NOTE_E_5, 128},
+ { NOTE_GS_5, 128}, { NOTE_B_5, 128}, { NOTE_A_3, 128},
+ { NOTE_E_4, 128}, { NOTE_A_4, 128}, { NOTE_E_5, 128},
{ NOTE_E_6, 128}, { NOTE_DS_6, 128}, { NOTE_E_6, 128},
- { NOTE_B_5, 128}, { NOTE_D_6, 128}, { NOTE_C_6, 128},
- { NOTE_A_3, 128}, { NOTE_E_4, 128}, { NOTE_A_4, 128},
- { NOTE_C_5, 128}, { NOTE_E_5, 128}, { NOTE_A_5, 128},
- { NOTE_E_3, 128}, { NOTE_E_4, 128}, { NOTE_GS_4, 128},
- { NOTE_E_5, 128}, { NOTE_C_6, 128}, { NOTE_B_5, 128},
- { NOTE_C_5, 255}, { NOTE_C_5, 255}, { NOTE_SILENT, 512},
+ { NOTE_DS_6, 128}, { NOTE_E_6, 128}, { NOTE_B_5, 128},
+ { NOTE_D_6, 128}, { NOTE_C_6, 128}, { NOTE_A_3, 128},
+ { NOTE_E_4, 128}, { NOTE_A_4, 128}, { NOTE_C_5, 128},
+ { NOTE_E_5, 128}, { NOTE_A_5, 128}, { NOTE_E_3, 128},
+ { NOTE_E_4, 128}, { NOTE_GS_4, 128}, { NOTE_E_5, 128},
+ { NOTE_C_6, 128}, { NOTE_B_5, 128}, { NOTE_A_5, 512},
+ { NOTE_SILENT, 256},
};
static struct vidtv_access_unit *vidtv_s302m_access_unit_init(struct vidtv_access_unit *head)
{
- struct vidtv_access_unit *au = kzalloc(sizeof(*au), GFP_KERNEL);
+ struct vidtv_access_unit *au;
+
+ au = kzalloc(sizeof(*au), GFP_KERNEL);
+ if (!au)
+ return NULL;
if (head) {
while (head->next)
@@ -196,10 +201,10 @@ static void vidtv_s302m_alloc_au(struct vidtv_encoder *e)
static void
vidtv_s302m_compute_sample_count_from_video(struct vidtv_encoder *e)
{
- struct vidtv_access_unit *au = e->access_units;
struct vidtv_access_unit *sync_au = e->sync->access_units;
- u32 vau_duration_usecs;
+ struct vidtv_access_unit *au = e->access_units;
u32 sample_duration_usecs;
+ u32 vau_duration_usecs;
u32 s;
vau_duration_usecs = USEC_PER_SEC / e->sync->sampling_rate_hz;
@@ -230,36 +235,32 @@ static u16 vidtv_s302m_get_sample(struct vidtv_encoder *e)
{
u16 sample;
int pos;
+ struct vidtv_s302m_ctx *ctx = e->ctx;
if (!e->src_buf) {
/*
* Simple tone generator: play the tones at the
- * beethoven_5th_symphony array.
+ * beethoven_fur_elise array.
*/
- if (e->last_duration <= 0) {
- if (e->src_buf_offset >= ARRAY_SIZE(beethoven_5th_symphony))
+ if (ctx->last_duration <= 0) {
+ if (e->src_buf_offset >= ARRAY_SIZE(beethoven_fur_elise))
e->src_buf_offset = 0;
- e->last_tone = beethoven_5th_symphony[e->src_buf_offset].note;
- e->last_duration = beethoven_5th_symphony[e->src_buf_offset].duration * S302M_SAMPLING_RATE_HZ / COMPASS / 5;
+ ctx->last_tone = beethoven_fur_elise[e->src_buf_offset].note;
+ ctx->last_duration = beethoven_fur_elise[e->src_buf_offset].duration *
+ S302M_SAMPLING_RATE_HZ / COMPASS / 5;
e->src_buf_offset++;
- e->note_offset = 0;
+ ctx->note_offset = 0;
} else {
- e->last_duration--;
+ ctx->last_duration--;
}
- /* Handle silent */
- if (!e->last_tone) {
- e->src_buf_offset = 0;
+ /* Handle pause notes */
+ if (!ctx->last_tone)
return 0x8000;
- }
-
- pos = (2 * PI * e->note_offset * e->last_tone / S302M_SAMPLING_RATE_HZ);
- if (pos == 360)
- e->note_offset = 0;
- else
- e->note_offset++;
+ pos = (2 * PI * ctx->note_offset * ctx->last_tone) / S302M_SAMPLING_RATE_HZ;
+ ctx->note_offset++;
return (fixp_sin32(pos % (2 * PI)) >> 16) + 0x8000;
}
@@ -289,9 +290,9 @@ static u16 vidtv_s302m_get_sample(struct vidtv_encoder *e)
static u32 vidtv_s302m_write_frame(struct vidtv_encoder *e,
u16 sample)
{
- u32 nbytes = 0;
- struct vidtv_s302m_frame_16 f = {};
struct vidtv_s302m_ctx *ctx = e->ctx;
+ struct vidtv_s302m_frame_16 f = {};
+ u32 nbytes = 0;
/* from ffmpeg: see s302enc.c */
@@ -388,6 +389,8 @@ static void vidtv_s302m_write_frames(struct vidtv_encoder *e)
static void *vidtv_s302m_encode(struct vidtv_encoder *e)
{
+ struct vidtv_s302m_ctx *ctx = e->ctx;
+
/*
* According to SMPTE 302M, an audio access unit is specified as those
* AES3 words that are associated with a corresponding video frame.
@@ -401,8 +404,6 @@ static void *vidtv_s302m_encode(struct vidtv_encoder *e)
* ffmpeg
*/
- struct vidtv_s302m_ctx *ctx = e->ctx;
-
vidtv_s302m_access_unit_destroy(e);
vidtv_s302m_alloc_au(e);
@@ -440,8 +441,13 @@ static u32 vidtv_s302m_clear(struct vidtv_encoder *e)
struct vidtv_encoder
*vidtv_s302m_encoder_init(struct vidtv_s302m_encoder_init_args args)
{
- struct vidtv_encoder *e = kzalloc(sizeof(*e), GFP_KERNEL);
u32 priv_sz = sizeof(struct vidtv_s302m_ctx);
+ struct vidtv_s302m_ctx *ctx;
+ struct vidtv_encoder *e;
+
+ e = kzalloc(sizeof(*e), GFP_KERNEL);
+ if (!e)
+ return NULL;
e->id = S302M;
@@ -453,14 +459,21 @@ struct vidtv_encoder
e->encoder_buf_offset = 0;
e->sample_count = 0;
- e->last_duration = 0;
e->src_buf = (args.src_buf) ? args.src_buf : NULL;
e->src_buf_sz = (args.src_buf) ? args.src_buf_sz : 0;
e->src_buf_offset = 0;
e->is_video_encoder = false;
- e->ctx = kzalloc(priv_sz, GFP_KERNEL);
+
+ ctx = kzalloc(priv_sz, GFP_KERNEL);
+ if (!ctx) {
+ kfree(e);
+ return NULL;
+ }
+
+ e->ctx = ctx;
+ ctx->last_duration = 0;
e->encode = vidtv_s302m_encode;
e->clear = vidtv_s302m_clear;
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-08 16:47:05 +0300