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[FFmpeg-devel,3/8] avformat/mpegtsenc: simplify code for condition checks

Message ID 1595431659-664-3-git-send-email-lance.lmwang@gmail.com
State Accepted
Commit cf81d64282167fc232d28c9e3c12ea8f2246f9fb
Headers show
Series [FFmpeg-devel,1/8] avformat/mpegts: add dvb ac3 descriptor metadata
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Commit Message

Limin Wang July 22, 2020, 3:27 p.m. UTC
From: Limin Wang <lance.lmwang@gmail.com>

Signed-off-by: Limin Wang <lance.lmwang@gmail.com>
---
 libavformat/mpegtsenc.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

Comments

Marton Balint July 22, 2020, 5:49 p.m. UTC | #1
On Wed, 22 Jul 2020, lance.lmwang@gmail.com wrote:

> From: Limin Wang <lance.lmwang@gmail.com>
>
> Signed-off-by: Limin Wang <lance.lmwang@gmail.com>
> ---
> libavformat/mpegtsenc.c | 6 ++++--
> 1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/libavformat/mpegtsenc.c b/libavformat/mpegtsenc.c
> index d827ba3..2d7a8ab 100644
> --- a/libavformat/mpegtsenc.c
> +++ b/libavformat/mpegtsenc.c
> @@ -483,16 +483,18 @@ static int mpegts_write_pmt(AVFormatContext *s, MpegTSService *service)
>         /* write optional descriptors here */
>         switch (st->codecpar->codec_type) {
>         case AVMEDIA_TYPE_AUDIO:
> -            if (st->codecpar->codec_id==AV_CODEC_ID_AC3 && (ts->flags & MPEGTS_FLAG_SYSTEM_B)) {
> +            if (ts->flags & MPEGTS_FLAG_SYSTEM_B) {
> +            if (st->codecpar->codec_id==AV_CODEC_ID_AC3) {
>                 *q++=0x6a; // AC3 descriptor see A038 DVB SI
>                 *q++=1; // 1 byte, all flags sets to 0
>                 *q++=0; // omit all fields...
>             }
> -            if (st->codecpar->codec_id==AV_CODEC_ID_EAC3 && (ts->flags & MPEGTS_FLAG_SYSTEM_B)) {
> +            else if (st->codecpar->codec_id==AV_CODEC_ID_EAC3) {
>                 *q++=0x7a; // EAC3 descriptor see A038 DVB SI
>                 *q++=1; // 1 byte, all flags sets to 0
>                 *q++=0; // omit all fields...
>             }
> +            }
>             if (st->codecpar->codec_id==AV_CODEC_ID_S302M)
>                 put_registration_descriptor(&q, MKTAG('B', 'S', 'S', 'D'));
>             if (st->codecpar->codec_id==AV_CODEC_ID_OPUS) {


LGTM, thanks.

Marton
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Patch

diff --git a/libavformat/mpegtsenc.c b/libavformat/mpegtsenc.c
index d827ba3..2d7a8ab 100644
--- a/libavformat/mpegtsenc.c
+++ b/libavformat/mpegtsenc.c
@@ -483,16 +483,18 @@  static int mpegts_write_pmt(AVFormatContext *s, MpegTSService *service)
         /* write optional descriptors here */
         switch (st->codecpar->codec_type) {
         case AVMEDIA_TYPE_AUDIO:
-            if (st->codecpar->codec_id==AV_CODEC_ID_AC3 && (ts->flags & MPEGTS_FLAG_SYSTEM_B)) {
+            if (ts->flags & MPEGTS_FLAG_SYSTEM_B) {
+            if (st->codecpar->codec_id==AV_CODEC_ID_AC3) {
                 *q++=0x6a; // AC3 descriptor see A038 DVB SI
                 *q++=1; // 1 byte, all flags sets to 0
                 *q++=0; // omit all fields...
             }
-            if (st->codecpar->codec_id==AV_CODEC_ID_EAC3 && (ts->flags & MPEGTS_FLAG_SYSTEM_B)) {
+            else if (st->codecpar->codec_id==AV_CODEC_ID_EAC3) {
                 *q++=0x7a; // EAC3 descriptor see A038 DVB SI
                 *q++=1; // 1 byte, all flags sets to 0
                 *q++=0; // omit all fields...
             }
+            }
             if (st->codecpar->codec_id==AV_CODEC_ID_S302M)
                 put_registration_descriptor(&q, MKTAG('B', 'S', 'S', 'D'));
             if (st->codecpar->codec_id==AV_CODEC_ID_OPUS) {